WO2004075778A2 - Adjustable rod and connector device and method of use - Google Patents

Adjustable rod and connector device and method of use Download PDF

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Publication number
WO2004075778A2
WO2004075778A2 PCT/US2004/005751 US2004005751W WO2004075778A2 WO 2004075778 A2 WO2004075778 A2 WO 2004075778A2 US 2004005751 W US2004005751 W US 2004005751W WO 2004075778 A2 WO2004075778 A2 WO 2004075778A2
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WO
WIPO (PCT)
Prior art keywords
rod member
implant
connector
tightening
rod
Prior art date
Application number
PCT/US2004/005751
Other languages
French (fr)
Other versions
WO2004075778A3 (en
Inventor
Stephen Ritland
Original Assignee
Stephen Ritland
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Stephen Ritland filed Critical Stephen Ritland
Priority to CA2516791A priority Critical patent/CA2516791C/en
Priority to EP04714674A priority patent/EP1596738A4/en
Priority to JP2006503886A priority patent/JP4598760B2/en
Priority to AU2004216131A priority patent/AU2004216131B2/en
Publication of WO2004075778A2 publication Critical patent/WO2004075778A2/en
Publication of WO2004075778A3 publication Critical patent/WO2004075778A3/en

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Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/68Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/70Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
    • A61B17/7001Screws or hooks combined with longitudinal elements which do not contact vertebrae
    • A61B17/7002Longitudinal elements, e.g. rods
    • A61B17/7004Longitudinal elements, e.g. rods with a cross-section which varies along its length
    • A61B17/7007Parts of the longitudinal elements, e.g. their ends, being specially adapted to fit around the screw or hook heads
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/68Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/70Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
    • A61B17/7001Screws or hooks combined with longitudinal elements which do not contact vertebrae
    • A61B17/7002Longitudinal elements, e.g. rods
    • A61B17/7014Longitudinal elements, e.g. rods with means for adjusting the distance between two screws or hooks
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/68Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/70Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
    • A61B17/7001Screws or hooks combined with longitudinal elements which do not contact vertebrae
    • A61B17/7002Longitudinal elements, e.g. rods
    • A61B17/7004Longitudinal elements, e.g. rods with a cross-section which varies along its length
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/68Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/70Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
    • A61B17/7001Screws or hooks combined with longitudinal elements which do not contact vertebrae
    • A61B17/7035Screws or hooks, wherein a rod-clamping part and a bone-anchoring part can pivot relative to each other
    • A61B17/7037Screws or hooks, wherein a rod-clamping part and a bone-anchoring part can pivot relative to each other wherein pivoting is blocked when the rod is clamped
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T403/00Joints and connections
    • Y10T403/70Interfitted members
    • Y10T403/7075Interfitted members including discrete retainer
    • Y10T403/7077Interfitted members including discrete retainer for telescoping members

Definitions

  • This invention relates generally to an adjustable rod and connectors for stabilizing a portion of the spine or stabilizing two or more bone segments, and a method of using the same.
  • fixation devices for the treatment of vertebrae deformities and injuries is well known in the art.
  • Various fixation devices are used in medical freatment to correct curvatures and deformities, treat trauma and remedy various abnormal spinal conditions.
  • the prior art fails to provide a low-profile device that allows the rod length to be easily adjusted during implantation with a minimal amount of effort by the installing surgeon. More particularly, where at least two bones or bone segments are involved, such as a first vertebra and a second vertebra, the rod typically extends beyond the connector, and needs to be specifically chosen or otherwise cut to accommodate the dimensions of the subj ect patient. Therefore, a need exists to provide an adjustable length rod implantation assembly and component parts that can be installed relatively easily by a surgeon, and that has the ability to be adjusted at the moment of implantation to thereby accommodate the geometry requirements of the patient.
  • the prior art also fails to provide pedicle screw to rod connectors that can be easily adjusted at the time of implantation. Such devices are needed to further accommodate the individual patient's requirements that exist and that are encountered upon performing and incision and encountering in situ conditions. In view of the above, there is a long felt but unsolved need for devices and methods that avoid the above-mentioned deficiencies of the prior art and that are relatively simple to employ and require relatively minimal displacement or removal of bodily tissue.
  • implant assemblies and/or components of an implant are provided that allow a surgeon to adjust the implant for the patient's requirements as they are encountered during surgery, and or which allow the surgeon to use low-profile implant components that result in minimal displacement of bodily tissue.
  • a spinal rod implant for spanning at least one intervertebral disc.
  • the implant is interconnectable to a first vertebra using a first pedicle screw, and to a second vertebra using a second pedicle screw.
  • the first pedicle screw is separated from the second pedicle screw by a bridge distance.
  • the implant comprises a first rod member for interconnecting to the first vertebra, where the first rod member includes a beam having an effective length shorter than the bridge distance.
  • the implant also includes a second rod member for interconnecting to the second vertebra, where the second rod member includes a clamp sized to receive at least a portion of the beam.
  • the clamp also has an effective length shorter than the bridge distance.
  • the implant includes a means for tightening the clamp to create a force to secure the beam within the clamp.
  • a surgical implant is provided, where the implant comprises a first rod member including a beam and a second rod member including an opening sized to circumferentially receive the beam.
  • the second rod member also includes an interior hollow chamber for longitudinally receiving at least a portion of the beam.
  • the second rod member includes an upper arm and an opposing lower arm spaced apart by a slot, wherein the slot is contiguous with the interior hollow chamber.
  • the upper arm is moveable to contact the beam and compress the beam between the upper arm and the lower arm.
  • the implant includes a means for tightening the second rod member to secure the beam within the second rod member.
  • a component of the assembly also has application to devices other than a rod implant that is parallel to the spine and that spans an intervertebral disc.
  • the clamp component could be used in bone stabilization unrelated to the spine.
  • it could be used in rod extensions, or it could be adapted for use in cross-link assemblies that are used to structurally interconnect right and left stabilization assemblies that are implanted on either side of a spinous process.
  • it is one aspect of the present invention to provide a rod member for use with a bone stabilizing rod, the rod member comprising and an upper arm and a lower arm interconnected to the upper arm.
  • At least a portion of the lower arm is separated from the upper ann by a slot and a hollow chamber, where the hollow chamber is sized to receive at least a portion ofthe bone stabilizing rod.
  • the upper arm is moveable to compress and secure the portion ofthe bone stabilizing rod between an interior surface ofthe upper arm and an interior surface ofthe lower arm.
  • One embodiment ofthe present invention features a rod clamping component that can be used in conjunction with a TSRH 3D pedicle screw known to those skilled in the art.
  • the clamping component includes a deformable connector that preferably resides within a cavity in the rod clamping component.
  • the deformable connector has potential application to being used with structures other than pedicle screws.
  • the deformable connector can be used with a properly adapted stabilizing rod that is used for bones other than the spine.
  • a deformable connector for use with a stabilizing rod clamp, the deformable connector capable of securing a portion of a substantially cylindrical member, such as a shank of a TSRH 3D pedicle screw or a stabilizing rod, within a cavity in the stabilizing rod clamp.
  • the deformable connector preferably comprises a disc having a passageway adapted to receive the substantially cylindrical member.
  • the deformable connector preferably includes a groove along an exterior surface ofthe disc and extending to the passageway. When compressed within the stabilizing rod clamp, the disc secures the cylindrical member within the passageway.
  • a connector device for a bone screw comprising a clamp that includes an upper section and a lower section separated by a slot.
  • the upper section includes a first aperture and the lower section includes a second aperture substantially aligned with the first aperture, where the first and second apertures are sized to accommodate a shank ofthe bone screw.
  • the connector further includes a tightening member operatively connected to the upper section and the lower section.
  • the tightening member tightens the clamp and reduces the size of the slot between the upper section and the lower section. This secures the shank ofthe bone screw within the device. It is a further aspect ofthe present invention to provide a bone stabilization assembly for securing a first bone segment to a second bone segment. This has particular application to being used to bridge an intervertebral disc between two vertebra.
  • the assembly comprises a first bone screw attachable to the first bone segment and a second bone screw attachable to the second bone segment.
  • the assembly includes a first rod member including a beam and an end connector, where the end connector is attachable to the first bone screw.
  • the assembly includes a second rod member.
  • the second rod member includes an interior hollow chamber for longitudinally receiving at least a portion ofthe beam ofthe first rod member.
  • the second rod member includes an upper arm and an opposing lower arm, where the upper arm and the lower arm are spaced apart by a slot, and wherein the slot is contiguous with the interior hollow chamber.
  • the upper arm is moveable and/or deformable to contact the beam and compress the beam between the upper arm and the lower arm.
  • the second rod member includes a connector attachable to the second bone screw.
  • the assembly also includes a means for tightening the second rod member to secure the beam within the second rod member.
  • the present invention also includes various methods for using the devices presented herein.
  • One such method concerns stabilizing one or more vertebra using an assembly.
  • the method comprises the steps of attaching a first pedicle screw to the first vertebra and a second pedicle screw to the second vertebra, hi addition, the method includes a step of inserting a beam of a first rod member into a second rod member, where the second rod member includes an interior hollow chamber for longitudinally receiving at least a portion ofthe beam ofthe first rod member.
  • the second rod member also includes an upper arm and an opposing lower arm, where the upper arm and the lower arm spaced apart by a slot, and wherein the slot is contiguous with the interior hollow chamber. The upper ann is moveable to contact the beam and compress the beam between the upper arm and the lower arm.
  • the second rod member includes an integral com ector for attaching the second rod member to the second pedicle screw.
  • the method also includes the step of connecting the first rod member to the first pedicle screw using a connector interconnected to the beam.
  • the method includes the step of advancing a single tightening mechanism to secure (a) the second rod member to the beam of the first rod member, and (b) the second rod member to the second pedicle screw.
  • Fig. 1 is a side elevation view of one assembly that incorporates aspects ofthe present invention, wherein the assembly includes a first embodiment of a first rod member, a first embodiment of a second rod member, polyaxial pedicle screws, tension links, and tension link nuts;
  • Fig. 2 is a side elevation view of one assembly ofthe present invention shown after implantation into two vertebra;
  • Fig. 3 is a side elevation view of a first embodiment of a first rod member including a beam and an end connector that includes a socket;
  • Fig. 4 is a perspective view ofthe device shown in Fig. 3;
  • Fig. 5 is a perspective view of the device shown in Fig. 3 in combination with a polyaxial pedicle screw and a tension link
  • Fig. 6 is a side perspective view of a first embodiment of a second rod member
  • Fig. 7 is a reverse side elevation view of a one assembly ofthe present invention
  • Fig. 8a is a cross sectional view along line 8a-8a shown in Fig. 1, wherein the beam has a circular cross section;
  • Fig. 8b is a cross sectional view along line 8a-8a shown in Fig. 1, wherein the beam has an oblong-shaped cross section;
  • Fig. 9 is a side elevation view of a second rod member
  • Fig. 10 is a bottom perspective view of a second rod member
  • Fig. 11 is a bottom perspective view of a first rod member within a second rod member
  • Fig. 12 is a top perspective view of a first rod member within a second rod member
  • Fig. 13 is a side elevation view of a second rod member having a recess on its upper arm and projection on its lower arm;
  • Fig. 14 is a side elevation view of a second embodiment of a second rod member that includes a deformable connector
  • Fig. 15 is a side elevation view of a second embodiment of a first rod member that includes a deformable connector
  • Fig. 16a is a side perspective view of one version of a deformable connector or disc
  • Fig. 16b is a side perspective view of a second version of a deformable connector or disc, wherein the disc includes a side grove;
  • Fig. 17 is a plan view ofthe device shown in Fig. 16b;
  • Fig. 18 is a side elevation view ofthe device shown in Fig. 16b in combination with a pedicle screw having a substantially straight upper shank portion;
  • Fig. 19 is a side elevation view of a modified version ofthe device shown in Fig. 16b;
  • Fig. 20 is a plan view of a yet a different version of the device shown in Fig 16b, wherein the device of Fig. 20 is spherical in shape rather than disc shaped;
  • Fig. 21 is a side elevation view ofthe device shown in Fig. 20;
  • Fig. 22 is a side elevation view of one assembly that incorporates aspects of the present invention, wherein the assembly includes a third embodiment of a first rod member, a second embodiment of a second rod member;
  • Fig. 23 is a plan view ofthe assembly shown in Fig. 22;
  • Fig. 24 is a side elevation view ofthe third embodiment of a first rod member shown in Fig. 22;
  • Fig. 25 is a plan view ofthe device shown in Fig. 24;
  • Fig. 26 is a side elevation view of separate embodiment of the. device shown in Fig. 24;
  • Fig.27 is apian view of an assembly having a second embodiment ofthe second rod member, wherein the deformable connector ofthe second rod member has an indentation that cooperates with the tightening member;
  • Fig. 28 is a side elevation view of one assembly that incorporates aspects of the present invention, wherein the- assembly includes a first embodiment of a first rod member, a second embodiment of a second rod member;
  • Fig. 29 is a plan view of a second embodiment of a deformable connector, wherein the deformable connector has a skeletonized structure;
  • Fig. 30 is a side elevation view of the deformable connector shown in Fig. 29, in combination with a pedicle screw having a substantially straight upper shank portion.
  • the adjustable rod implant 10 is preferably a multi-piece implant, and more preferably, a two- piece rod implant.
  • the adjustable rod implant 10 can be used as a structural bridge to span a section of bone, or to span a distance between two portions of bone, or to span a distance between two different bones.
  • the adjustable rod implant 10 can be used as a vertebral bridge to span at least one intervertebral disc D between two vertebra V, and V 2 . Accordingly, by way of illustration and without intending to limit the possible uses of the present invention, the examples of usage presented herein are generally directed toward spanning at least one intervertebral disc.
  • the adjustable rod implant 10 is preferably attached to the subject vertebrae using pedicle screws, with a connector interconnecting the pedicle screws to the adjustable rod implant 10.
  • the pedicle screws used with the adjustable rod- implant 10 maybe of atype that allow for some rotational or polyaxial adjustment prior to securing the adjustable rod implant 10, as discussed further below, or the pedicle screws may be of the type that do not allow rotational or polyaxial adjustment.
  • the adjustable rod implant could be used with other types of bone pedicle screws.
  • the rod implant may be used with hook devices that attach to the vertebrae, such hook devices being known to those skilled in the art.
  • the adjustable rod implant 10 includes a first rod member 12.
  • the first rod member 12 includes a rod or beam 14.
  • the beam 14 has a longitudinal axis LA b -LA b .
  • Beam 14 has a first beam end or distal beam end 16 and a second beam end or proximate beam end 18.
  • the beam 14 also includes a posterior or top side 20 and an anterior or bottom side 22.
  • the beam 14 may have a solid interior or it may have a hollow interior, depending upon the strength requirements ofthe particular application in which it is being used. For most spinal surgeries, it is anticipated that beam 14 will be solid.
  • First rod member 12 may be interconnected to a pedicle screw using a separate connector that is not an integral part of first rod member 12.
  • first rod member 12 includes an end connector 24 attached to the proximate beam end 18 of beam 14. End connector 24 is used to interconnect beam 14 to a pedicle screw. The end connector 24 is preferably incorporated directly into the first rod member 12 in the form of a receptacle 26.
  • end connector 24 is shown located at the proximate beam end 18 of a beam 14.
  • the end connector 24 is adjustable and includes a receptacle 26 that is in the form of a socket that preferably includes a socket exterior 28 and a socket interior 30.
  • the socket interior 30 essentially acts as a low-profile connector.
  • the receptacle 26 is sized to fit over and receivingly accept a substantially spherical-headed pedicle screw, such as the enlarged area 32 of a polyaxial pedicle screw 34.
  • socket interior 30 is preferably a recessed area at the proximate beam end 18 of a beam 14 that fits over the enlarged area 32 ofthe polyaxial pedicle screw 34.
  • the socket interior 30 is preferably nearly spherical, to match a spherical- type shape of enlarged area 32 of the polyaxial pedicle screw 34.
  • the socket interior 30 may be a variety of shapes that match the head ofthe pedicle screw.
  • Within the top center area ofthe receptacle 26 is a tension link cavity 36 that is sized to accommodate the shaft 38 of a tension link 40. Referring to Figs. 1 and 4, the tension link cavity 36 can be seen as an opening through the top of receptacle 26.
  • the first rod member 12 includes the beam 14 and preferably includes an end connector 24 that is integrally formed with the beam 14, where the end connector 24 is positioned at the second end 18 ofthe rod member 14. As discussed, the end connector 24 includes structural features the allow the beam 14 to be interconnected to an appropriately configured pedicle screw S.
  • Fig. 4 a top perspective view ofthe first rod member 12 is shown.
  • this view illustrates the tension link cavity 36 positioned at substantially the top ofthe end comiector 24 at the proximate beam end 18 of the first rod member 12.
  • the tension link cavity 36 is sized to accommodate the diameter of the shaft 38 of a tension link 40.
  • a bottom perspective view of the first rod member 12 is shown with an end connector 24, a polyaxial pedicle screw 34, a tension link 40, and a tension link nut 58.
  • the substantially spherical enlarged area 32 of the polyaxial pedicle screw 34 and the substantially spherical socket interior 30 ofthe end connector 24 allows the end connector 24 to be rotated and adjusted over the enlarged area 32 of a polyaxial pedicle screw 34 before tightening using the tension link nut 58, thus providing adjustability to the rod, connector, and pedicle screw configuration.
  • the principal advantage of the integral end connector 24 is to shrink the profile of the configuration as a system, and thereby reduce the length of the rod implant 10 that is longitudinally exposed beyond the pedicle screw location. In so doing, in spinal implant applications, the adjacent vertebra beyond the end of the first rod member 12 is not exposed to potentially impacting a rod section that would have previously extended longitudinally beyond the connector location. This can reduce patient pain and increase patient mobility.
  • a further advantage is that the smaller profile results in less tissue displacement in the vicinity of end connector 24.
  • a separate rod to pedicle screw connector known to those skilled in the art may be used to attach a section of rod to a pedicle screw, and therefore, although preferred, and end connector 24 is not required.
  • the second rod member 42 of the adjustable rod implant 10 functions as a clamp, and is preferably a one-piece structure that is deformable to create a compressive force and secure the first rod member 12 within the second rod member 42 when a means for clamping or tightening the second rod member 42 is applied.
  • the second rod member 42 includes an interior hollow chamber 44.
  • the interior hollow chamber 44 is an elongated hollow region having a longitudinal axis LA C -LA C .
  • the interior hollow chamber 44 is sized to accommodate at least a portion ofthe beam 14 ofthe first rod member 12.
  • the second rod member 42 preferably includes a slot 46 that separates an upper arm 48 from a lower arm 50.
  • the lower ann 50 acts as a base for the second rod member 42.
  • the slot 46 forms a gap that can be selectively reduced, whereby the slot 46 allows the upper arm 48 to be selectively deflected toward the lower arm 50.
  • the second rod member 42 also includes a distal opening 52 that leads to the interior hollow chamber 44.
  • the distal opening 52 is sized to receive the beam 14. More particularly, the distal beam end 16 of beam 14 can be inserted into the distal opening 52, and the beam 14 selectively slid into the interior hollow chamber 44.
  • adjustment arrow A j shows that the beam 14 may be moved from right to left and from left to right within the interior hollow chamber 44 ofthe second rod member 42 prior to applying a clamping or tightening force to the second rod member 42.
  • the length ofthe beam 14 that is slid into the interior hollow chamber 44 can be adjusted by the surgeon.
  • Figs. 11 and 12 show two different perspective views of the beam 14 ofthe first rod member 12 positioned within the hollow chamber 44 ofthe second rod member 42. Since the overall length ofthe implant 10 can be adjusted at the time ofthe implantation by the surgeon, this allows the surgeon to readily accommodate a patient's particular needs.
  • the upper arm 48 and lower arm 50 are compressed toward each other, thereby securing the beam 14 within the second rod member 42.
  • the base or lower arm 50 remains substantially immobile, and the upper arm 48 is deflected toward the lower arm 50.
  • Arrows A 2 of Figs. 1 and 7 show that the upper arm 48 is forced toward the lower arm 50. That is, the upper arm 48 acts as a moveable and/or deformable structure that is suspended over the interior hollow chamber 44, and which can be forced toward the lower arm 50. In so doing, at least a portion ofthe interior surface 54 ofthe upper arm 48 applies a compressive force to the top side 20 of the beam 14. The beam 14 then presses downward such that the bottom side 22 ofthe beam 14 presses against the interior surface 56 of the base or lower arm 50 of the second rod member 42. This interaction of forces causes the beam 14 to be compressively secured within the second rod member 42.
  • the second rod member 42 preferably includes an end connector 24 attached to lower arm 50 of the second rod member 42.
  • the end connector 24 is used to interconnect the second rod member 42 to a polyaxial pedicle screw 34.
  • the end connector 24 is preferably incorporated directly into the second rod member 42 in the form of a receptacle 26.
  • the principal advantage ofthe integral end connector 24 is to shrink the profile of the configuration as a system, and thereby reduce the length of the rod implant 10 that is longitudinally exposed beyond the pedicle screw location, h so doing, in spinal implant applications, the adjacent vertebra beyond the end of the second rod member 42 is not exposed to potentially impacting a rod section that would have previously extended longitudinally beyond the connector location. This can reduce patient pain and increase patient mobility.
  • a further advantage is that the smaller profile results in less tissue displacement in the vicinity ofthe end connector 24.
  • both the upper arm 48 and lower arm 50 ofthe second rod member 42 include a tension link cavity 36 that is sized to accommodate the shaft 38 of the tension link 40.
  • the tension link cavity 36 can be seen as an opening through the top ofthe end ofthe upper arm 48, where the tension link cavity 36 in the upper arm 48 is aligned with the tension link cavity 36 in the lower arm 50.
  • the pedicle screw to be connected to the second rod member 42 is preferably fitted with a tension link 40, and the tension link shaft 38 is extended through the tension link cavity 36 in the receptacle 26 and through the tension link cavity 36 in the upper arm 48.
  • a tension link nut 58 is then threaded onto the end ofthe tension link shaft 38 and is tightened.
  • the tension link nut 58 provides the tightening or clamping force for the second rod member 42, thereby deflecting the upper arm 48 toward the lower arm 50 and securing the beam 14 within the second rod member 42.
  • a notch 60 is positioned in the second rod member 42 near the distal opening 52.
  • the distal opening 52 next to the notch 60 is essentially a hoop structure 62 through which the beam 14 passes to enter the interior hollow chamber 44.
  • the notch 60 longitudinally separates the distal opening 52 from a second opening or interior opening 64.
  • the interior opening 64 is formed by an arch 66 extending from and interconnecting the upper arm 48 to the lower ann 50.
  • the notch 60 may be a variety of shapes, such as an inverted U-shape, or an inverted V-shape.
  • the hoop structure 62 of the distal opening 52 aligns and supports the beam 14 when it is positioned within the interior hollow chamber 44 prior to tightening of the second beam member 42.
  • the hoop structure 62 of the distal opening 52 also functions to prevent the beam 14 from rocking up and down prior to applying a clamping or tightening force to the second rod member 42.
  • the hoop structure 62 substantially maintains the alignment ofthe longitudinal axis LA b -LA b ofthe beam 14 with the longitudinal axis LA C - LA C ofthe hollow chamber 44 ofthe second rod member 42 while sliding the beam 14 into the second rod member 42 and implanting the rod implant 10, and through such time as a clamping or tightening force is applied to the second rod member 42.
  • the notch 60 also serves to lighten the second rod member 42 by reducing its mass.
  • the beam 14 and the second rod member 42 work in combination to provide an adjustable rod segment that can be shortened or lengthened during the implant procedure by the surgeon to accommodate the specific spacial requirements ofthe patient.
  • One particular use ofthe implant is to span one level (one intervertebral disc). Referring to Fig. 2, in use, the surgeon first inserts a first pedicle screw 34 into a first vertebra Vj ofthe patient, and then inserts a second pedicle screw 34 into a second vertebra V 2 ofthe patient. Tension links 40 are then inserted into the enlarged areas 32 ofthe pedicle screws 34. Alternately, the tension links are preloaded into the pedicle screws before they are implanted into the vertebrae.
  • the beam 14 is then interconnected to the first pedicle screw 34 using a first connector, and the second rod member 42 is interconnected to the second pedicle screw 34 using a second connector.
  • the beam 14 is preferably loosely inserted into the second rod member 42 in advance of interconnecting the second rod member 42 to the second pedicle screw. That is, the surgeon pre-assembles the beam 14 of the first rod member 12 inside the second rod member 42, but does not tighten the two members together. The surgeon then lowers both the first rod member 12 and the second rod member 42 as a unit over the pedicle screws. Referring again to Figs. 1 and 2, the surgeon then preferably tightens a link nut 58 over the tension link shaft 38 that is associated with the first rod member 12.
  • the surgeon may then adjust the length ofthe beam 14 inside the second rod member 42 by sliding the beam 14 into or out ofthe clamp to obtain the proper bridge distance needed between the first pedicle screw and the second pedicle screw. Subsequently, the surgeon can apply a tightening force to the second rod member 42 to secure the beam 14 within the second rod member 42.
  • the implant 10 provides the surgeon the ability to tighten the second rod member 42 to its associated pedicle screw and also clamp the second rod member 42 to the first rod member 12 using one effort and one structure. This is accomplished in the prefe ⁇ ed assembly shown in Figs.
  • an effective beam length L,, of beam 14 is defined as the distance from the pedicle screw to which it is attached to the distal beam end 16.
  • the effective clamp length L c of second rod member 42 is defined as the distance from the pedicle screw to which it is attached to the distal opening 52.
  • both the effective beam length L,, and the effective clamp length L c are shorter than the bridge distance D B , which is the distance between the first pedicle screw and the second pedicle screw.
  • rotational adjustability ofthe implant 10 can be provided by using a beam 14 that is rotatable within the interior hollow chamber 44.
  • a beam 14 having a circular cross section like that shown in Fig. 8a can be coupled with a second rod member 42 preferably having a circular distal opening 52 and interior hollow chamber 44.
  • the circular cross section of beam 14 maybe rotated within the second rod member 42, thereby allowing the surgeon the ability to rotate and angularly adjust the position of the first rod member 12 relative to the second rod member 42.
  • Rotational adjustability is permitted before applying a tightening force to the second rod member 42 and securing the beam 14 within the interior hollow chamber 44 of the second rod member 42.
  • beam 14 may have a cross section resembling an oblong shape.
  • the distal opening 52 and interior hollow chamber 44 are also preferably substantially oblong in shape.
  • This modification provides an assembly that does not allow rotation of the first rod member 12 relative to the second rod member 42, which may be desirable in certain situations.
  • other configurations are possible, such as co ⁇ esponding triangular, rectangular, and polygonal shapes (not shown).
  • the beam cross-section may differ from the shape of the cross-section of the interior hollow chamber.
  • a variety of shapes and combination of shapes are possible for the cross section ofthe beam 14 and the interior hollow chamber 44, and such possible different shapes for the structures are within the scope ofthe present invention.
  • the upper arm 48 of the second rod member 42 may optionally include a recess 68 for receiving a cooperating projection 70 positioned on the edge of the slot of the lower arm 50.
  • the recess 68 and projection 70 may be a variety of shapes, and may include means for interlocking.
  • the projection 70 may include a barb (not shown) that interlocks with one or more ridges (not shown) within the recess 68.
  • the position of the recess 68 and projection 70 may be reversed such that the recess is located on the lower ann 50 and the projection is located on the upper arm 48.
  • the socket exterior 28 ofthe end connector 24 at one or both ofthe first rod member 12 and second rod member 42 may be rounded to substantially minor the socket interior 30 as shown in Fig. 1. Alternatively, it may be have a different shape, such as the block shape shown in Fig. 7. Additionally, as shown in Fig. 1, the center ofthe enlarged areas 32 ofthe polyaxial pedicle screws 34 may be substantially aligned with the longitudinal axis ofthe beam 14 ofthe first rod member 12, and aligned with the longitudinal axis ofthe hollow chamber 44 ofthe second rod member 42, or the centers may be offset, as shown in Fig. 7.
  • the rod implant 10 permits a length of rod to be adjusted at the surgical site without having to cut the rod, or use a standardized rod length that may not fit the patient. Furthermore, utilizing the components ofthe present invention, the entire assembly can be tightened by securing a link nut 58 at the second rod member 42. This greatly simplifies the surgeon's efforts and serves to reduce operation time and associated patient risk.
  • the second rod member 42 can be used to attach a new section of rod to an existing section of rod, to extend a section of rod, to provide length adjustability to a rod, to provide a means of attaching a separate structure to the end of a new or existing rod, to provide a means of attaching a separate structure to the end of a new or existing rod while adjusting the length ofthe rod, or to reinforce an existing section of rod.
  • Second rod member 42' includes a number of structural features that are similar to the previously described second rod member 42. That is, an interior hollow chamber 44 is sized to receive a beam 14 of a first rod member 12, and the second rod member 42' functions as a clamp to provide a compressive force to secure the beam 14 ofthe first rod member 12 within the interior hollow chamber 44.
  • Second rod member 42' differs from second rod member 42 in that it includes a deformable connector 72 that can be used to secure the second rod member 42' to a pedicle screw, wherein the pedicle screw has a substantially straight upper shank portion, such as a TSRH 3D pedicle screw 74 known to those skilled in the art. More particularly, the deformable connector 72 acts as a clamp within a clamp, by providing a compressive force around a portion ofthe shank 76 of a pedicle screw 74.
  • the deformable connector 72 is situated within an open portion or cavity 78 of the second rod member 42'.
  • the upper arm 48 of the second rod member 42' preferably includes a upper ann shoulder 80 against which a portion of the deformable connector 72 is positioned.
  • the lower arm 50 of the second rod member 42' preferably includes a lower arm shoulder 82, also against which a portion ofthe deformable connector 72 is positioned.
  • the second rod member 42' includes a tightening member 84 that serves as a means for tightening the second rod member 42' such that the second rod member 42' compresses and acts as a clamp to hold the beam 14 ofthe first rod member 12 secure.
  • tightening member 84 is a screw or bolt positioned on a substantially opposing side ofthe deformable connector 72 relative to the positions ofthe upper ann shoulder 80 and the lower arm shoulder 82. That is, the tightening member 84 is preferably on one side ofthe shank 76 ofthe pedicle screw 74, and the upper arm shoulder 80 and the lower arm shoulder 82 are on situated on an opposing side ofthe shank 76 ofthe pedicle screw 74.
  • the tightening member 84 When tightened, the tightening member 84 not only draws the upper arm 48 and the lower arm 50 together, thereby compressing the second rod member 42', but also necessarily shrinks the size of the cavity 78 and consequently confines the deformable connector 72 between the upper arm shoulder 80, the lower arm shoulder 82 and a shank 86 of the tightening member 84.
  • the tightening member 84 puts at least a first point 90 ofthe perimeter 92 ofthe deformable connector 72 in contact with the upper arm shoulder 80.
  • the tightening member 84 puts at least a second point 94 of the perimeter 92 of the deformable connector 72 in contact with the lower arm shoulder 82.
  • the shank 86 ofthe tightening member 84 contacts at least a third point 96 on the perimeter 92 ofthe deformable connector 72. These at least three points 90, 94, and 96 compress the defonnable connector 72 such that it securely holds the shank 76 ofthe pedicle screw 74.
  • at least one ofthe upper arm shoulder 80 and the lower arm shoulder 82 are not parallel to a side surface 88 ofthe shank 76 ofthe pedicle screw 74.
  • the defonnable connector 72 may also be adapted for use in a first rod member 12', wherein the first rod member 12' includes a beam 14 that is connected to a pedicle screw 74 byway ofthe deformable connector 72 that is situated within a cavity 78 ofthe first rod member 12'.
  • the deformable connector 72 is again confined within the first rod member 12' by a upper arm shoulder 80 and lower arm shoulder 82, and further by the shank 86 of the tightening member 84.
  • a substantially cylindrical-shaped deformable connector 72 is that it can be rotated within the cavity 78 prior to tightening to accommodate the position ofthe pedicle screw 74. Therefore, second rod member 42' with deformable connector 72 overcomes the problem of where the pedicle screw 74 is not aligned sufficiently perpendicular to the intend rod axis.
  • a substantially cylindrical-shaped deformable connector 72 can be rotated within the cavity 78 and then slipped over the shank 76 ofthe pedicle screw 74, and subsequently secured within the second rod member 42' by tightening the tightening member 84.
  • deformable connector 72 in combination with a clamping style first rod member 12' or second rod member 42' is rotatably adjustable prior to tightening.
  • Rotation a ⁇ ows A 3 illustrate that the deformable connector 72 is rotatable within the cavity 78. This allows a surgeon to accommodate a patient's particular needs during the surgical procedure.
  • a surgeon first installs a bone screw for general applications, or a pedicle screw if the device is to be interconnected to the pedicle of a vertebra. Assuming the device is used in an assembly for bridging an intervertebral disc, a second pedicle screw is attached to the other vertebra, or an existing second pedicle screw is used. Alternatively, the device could be used where two existing pedicle screws were already in place. The surgeon then preferably inserts the beam ofthe first rod member into the second rod member.
  • the surgeon preferably lowers the first rod member and second rod member as a unit over the pedicle screws.
  • the shank 76 of the pedicle screw 74 associated with first rod member 12' or second rod member 42' is slipped into the passageway 98 ofthe defonnable connector 72 that is positioned in the cavity 78 ofthe respective first rod member 12' or second rod member 42'.
  • the deformable connector 72 is rotated as desired by the surgeon to obtain the proper alignment in order to slip the first rod member 12' or second rod member 42' over the pedicle screw 74. If first rod member 12' is being used, then the surgeon tightens first rod member 12' to its pedicle screw by advancing the tightening member 84 associated with the first rod member 12'.
  • first rod member 12' is not being used, then the rod member opposite the second rod member 42' is preferably otherwise secured to its pedicle screw. Subsequently, after adjusting the length ofthe beam 14 within the second rod member, the second rod member is then secured to the first rod member. If second rod member 42' is being used, then the securing step is accomplished by advancing the tightening member 84 associated with the second rod member 42'.
  • the defonnable connector 72 is substantially cylindrical in shape, and this shape allows the cylindrical deformable connector 72 to rotate within the cavity 78 ofthe second rod member 42'.
  • the defonnable connector 72 includes a passageway 98 for receiving the shank 76 ofthe pedicle screw 74. More particularly, the passageway 98 is an opening through the defonnable connector 72 that is sized to accommodate the shank 76 of a pedicle screw 74.
  • the deformable connector 72 has a composition or structure allowing the defonnable connector 72 to compress around the shank 76 of the pedicle screw 74 upon tightening of the second rod member 42'.
  • the deformable connector 72 maybe made of a type of material that can be compressed, such as a suitable resilient material.
  • the deformable connector 72 is squeezed and compressed between the upper arm shoulder 80, lower arm shoulder 82 and the shank 86 of the tightening member 84 such that the shank 76 ofthe pedicle screw 74 is secured within the deformable connector 72, which in turn, is secured within the second rod member 42'.
  • the defonnable connector 72 may include a slit or groove 100 along a side that preferably intercepts the passageway 98.
  • the groove includes a first edge 102 and an opposing and separated second edge 104.
  • the deformable connector 72 is squeezed and compressed between the upper arm shoulder 80, lower arm shoulder 82 and the shank 86 ofthe tightening member 84.
  • the first edge 102 of the groove 100 is moved in a direction of arrow A 4 toward the second edge 104, which is being moved in a direction of arrow A 5 toward first edge 102.
  • the groove 100 allows the passageway 98 of deformable connector 72 to collapse around the shank 76 ofthe pedicle screw 74, such that the pedicle screw 74 is secured within the deformable connector 72, which in turn, is secured within the second rod member 42'.
  • the deformable connector 72 is anticipated to have a diameter of approximately 10 to 13 mm, and the passageway 98 within the deformable connector 72 is anticipated to have a diameter just slightly larger than the diameter ofthe shank 76 of a pedicle screw 74, which is typically on the order of about 5.2 mm in size.
  • portions ofthe deformable connector 72 maybe truncated to reduce the weight and displacement volume ofthe deformable connector 72.
  • a truncated first end 106 and/or a truncated second end 108 ofthe deformable connector 72 can be flattened or otherwise modified in shape.
  • the truncated first end 106 and truncated second end 108 are located at the passageway openings 110 and 112, respectively.
  • the deformable connector 72 may also take the form of a bead or sphere.
  • a sphere-shaped deformable connector 72 allows the deformable connector 72 to be rotated in a multitude of directions to accommodate alignment with the shank 76 of a pedicle screw 74.
  • an interference fit connector 114 is presented.
  • a second rod member 42' is shown in combination with a first rod member 12", wherein first rod member 12" incorporates an interference fit connector 114.
  • the interference fit connector 114 is integrally attached to the beam 14. More particularly, the proximate beam end 18 of first rod member 12" is attached to an interference fit connector 114.
  • interference fit connector 114 has a C-shaped section 116 having a slot 118 separating an upper section 120 from a lower section 122.
  • the first rod member 12" includes a first aperture 124 through the upper section 120, and a second aperture 126 through the lower section 122.
  • the C-shaped section 116 includes an interference tightening member 128, which serves as a means for tightening the C-shaped section 116 and drawing the upper section 120 and the lower section 122 in closer proximity relative to each other, such that the shank 76 of pedicle screw 74 is pinched or clamped within the C-shaped section 116 and secured to the first rod member 12". As shown in Figs.
  • the interference tightening member 128, or means for tightening the C-shaped section 116 can preferably take the form of a screw or a bolt.
  • a band clamp such as a wonn-gear band could also be used to compress the upper section 120 and lower section 122 toward each other. Accordingly, a number of means for tightening the C-shaped section 116 are possible and are within the scope ofthe present invention.
  • the C-shaped section 116 is that, when used in a first rod member 12", it provides a rod and connector combination that is relatively easy for the surgeon to use.
  • a second advantage is that it limits the length ofthe connector and implant structure that is longitudinally exposed beyond the pedicle screw 74 location, h so doing, in spinal implant applications, the adjacent vertebra beyond the end ofthe first rod member 12" is not exposed to potentially impacting a rod section that would have previously extended longitudinally beyond the connector location. This can reduce patient pain and increase patient mobility.
  • a further advantage is that the smaller profile results in less tissue displacement in the vicinity of C-shaped section 116.
  • the first rod member 12'" shown in Fig.26 incorporates an integral connector that uses an interference fit, but has a reverse orientation as compared to the device shown in Fig. 24. More specifically, the proximate end 18 of first rod member 12'" includes a reverse C- shaped section 130 having a slot 118 separating an upper section 120 from a lower section 122. The first rod member 12'" includes a first aperture 124 through the upper section 120 and a second aperture 126 through the lower section 122.
  • the reverse C-shaped section 130 includes an interference tightening member 128, which serves as a means for tightening the reverse C-shaped section 130 and drawing the upper section 120 and the lower section 122 in closer position relative to each other, such that the shank 76 of pedicle screw 74 is clamped or pinched within the reverse C-shaped section 130 and secured to the first rod member 12'".
  • the interference tightening member 128, or means for tightening the reverse C-shaped section 130 can preferably take the form of a screw or a bolt.
  • a band clamp such as a worm-gear band could also be used to compress the upper section 120 and lower section 122 toward each other. Accordingly, a number of means for tightening the C-shaped section 130 are possible and are within the scope of the present invention.
  • the reverse C-shaped section 130 is that, when used in a first rod member 12'", it provides a rod and connector combination that is relatively easy for the surgeon to use.
  • a second advantage is that it provides an interference type of connector fitting where the tightening member 128 is positioned on the opposite side of the pedicle screw 74 as that ofthe rod portion. Therefore, one potential use is for short bridge distances; that is, where the distance between pedicle screws is relatively small, and does not lend itself to placing the tightening member 128 in a position between the pedicle screws being spanned.
  • a surgeon In use, a surgeon first installs a pedicle screw, or otherwise identifies an existing bone screw that the interference fit connector is to be attached to. Depending upon the choice of the device by the surgeon, the surgeon then slips the C-shaped section 116 or the reverse C- shaped section 130 over the shank 76 ofthe pedicle screw 74. To tighten the type C-shaped section 116 or the reverse C-shaped section 130 to the pedicle screw 74, the surgeon advances the tightening member 128. If a screw or bolt is used as a tightening member 128, this last step comprises advancing the screw or bolt until the C-shaped section 116 or the reverse C-shaped section 130 is secured to the shank 76 ofthe pedicle screw 74.
  • An interference fit connector can also be oriented at any angle relative to the beam that is between the pedicle screws. More particularly, Fig.26 illustrates a reverse C-shaped section 130 that is situated at an angle of about 180 degrees relative to the C-shaped section 116 shown in Fig. 24. That is, it is not on the same side as the beam 14, but instead, it is on the opposite side of the pedicle screw relative to the beam 14. However, the C-shaped connector could be oriented at any angle, such as 30, 45, 60, 90, 135, etc. degrees (not shown) relative to the beam 14 to which it is attached. These different orientations for the C-shaped connector maybe preferred depending upon a patient' s needs, for example, because of an injury that makes such an orientation preferable.
  • an implant assembly is shown in plan view that includes two pedicle screws with an interference fit type of integral connector such as first rod member 12" shown on the left side, and a second rod member 42" with a deformable connector 72 shown on the right side.
  • the deformable connector 72 of Fig. 27 includes a modified shape in the form of an indentation 132 that cooperates with the tightening member 84.
  • the indentation 132 in the deformable connector 72 extends down the side ofthe deformable connector 72.
  • the indentation 132 allows the distance d 2 between the right-most pedicle screw 74 and the right-most tightening member 84 to be reduced relative to the distance dj between the right-most pedicle screw 74 and the right-most tightening member 84 as shown in Fig.23. Said differently, distance d j of Fig.23 is less than distance d j of Fig. 27. This can be further reduced by using a screw as a tightening member 84 that has no upper flange.
  • the distance d 3 ofthe length ofthe second rod member 42" between the right-most pedicle screw 74 and the rightmost end of the second rod member 42" is also reduced relative to the distance d 4 of the length ofthe second rod member 42' between the right-most pedicle screw 74 and the right- most end of the second rod member 42', as shown in Fig. 23.
  • the adjacent vertebra beyond the end ofthe second rod member 42" is not exposed to potentially impacting a rod section that would have previously extended longitudinally beyond pedicle screw location. This can reduce patient pain and increase patient mobility.
  • a further advantage is that the smaller profile results in less tissue displacement in the vicinity of second rod member 42".
  • an implant assembly is shown that includes first rod member 12 in combination with a second rod member 42'. This combination allows for a polyaxial pedicle screw 34 to be used with a pedicle screw having a straight upper shank portion, such as pedicle screw 74 that is shown on the right side ofthe figure.
  • the deformable connector 72' has a skeletonized structure to reduce its weight.
  • the skeletonized structure ofthe deformable connector 72' can take the form of one or more tie beams 134 that structurally tie together portions of the deformable connector 72'.
  • the tie beam 134 may include a textured surface 136 with, for example, a ridged, grooved or roughened surface for allowing the tie beam 134 to be selectively adjusted during the tightening process.
  • the deformable connector 72' can be formed of a structural frame that is partially compressible to lock the pedicle screw 74 in place and prevent its rotation after a tightening force is applied using a tightening member 84.
  • the exterior surface ofthe beam 14, such as the top side 20 and the bottom side 22 may possess surface features that interlock and aid in securing the beam 14 to the inside of the second rod member 42.
  • the inside surfaces ofthe second rod member 42, 42' and/or 42" such as the interior surfaces 54 and/or 56 ofthe upper arm 48 and lower arm 50, respectively, may also include features that interlock and aid in securing the beam 14 within the second rod member 42.
  • the various previously identified surfaces may include detents or depressions that receivingly accept other structural features.
  • Surficial features may include texturing, ridges, bumps, projections, protrusions, indentations, adhesives, and coverings or coatings of alternate materials.
  • the second rod members 42, 42', and 42" are preferably a one-piece, monolithic structure, they may be manufactured, assembled, or implanted in plurality of pieces.
  • a multi-piece second rod member 42, 42', and 42" can include an upper arm 48 separately and/or hingedly connected to the lower arm 50.
  • Such a structure may be desirable to allow easy insertion of a deformable connector 72 or 72' within a cavity 78 of a second rod member 42' and 42" during the manufacturing process.
  • the devices and structural features described herein are made from a material that possesses the appropriate sfrength characteristics necessary to withstand loading from the human body when used in medical applications. Tensile sfrength qualities ofthe materials used is a key consideration.
  • materials may include ceramics, plastics, metals, or carbon fiber composites. More preferably, the materials are made from titanium, a titanium alloy, or stainless steel.
  • Devices disclosed herein can also be made of thermal memory materials or materials that possess different elastic properties at varying temperatures.
  • the subject component(s) may be heated or cooled to a desired temperature, implanted, then subsequently allowed to cool or warm to the temperature of the ambient conditions that will exist during the usage period for the subject device, namely, normal body temperature.
  • the dimensions ofthe devices disclosed herein are expected to vary depending upon the patient's needs. For example, a rod the entire length ofthe spine, such as 2 feet in length, may be used. Alternately, a rod only 10 to 40 mm long may be all that is necessary to span and bridge a disc ofthe spine.
  • the preferable length of rod is simply an adequate length to bridge the necessary vertebral disc or discs.
  • the beams of the first rod members described herein are anticipated to have a diameter of about 3-7 mm if solid and circular in cross section, and on the order of about 4-7 mm in length in the long dimension if solid and oblong in cross section.
  • the size of the dimensions ofthe devices is subject to the material used to construct the subject device, the intend use, and the specific characteristics of the patient. For example, a large person may have larger sized components than a device implanted in a child.
  • the curvature of the rod may also be variable depending upon the desired final curvature sought for the patient.
  • the curvature may be established during manufacture of a given rod, and/or a given rod segment may have its curvature adjusted at the of time surgery prior to implantation.
  • the devices disclosed herein also have application to uses other than those specifically discussed.
  • one or more of the devices described herein have application to uses outside of surgical stabilization.
  • the devices could be used to connect framing of objects such as furniture.
  • Even within the field of medicine and spinal surgery, one anticipated use involves using certain components described herein to cross-link or structurally interconnect right and left stabilization assemblies that are implanted on either side of a spinous process.

Abstract

A low-profile surgical rod implant device (10) is provided that allows the length of a rod spanning two bone screws to be adjusted at the time of implantation. In a separate aspect of the invention, the rod implant device can be secured by tightening and securing an end (24) of the rod implant device at one of the bone screws (34). Embodiments are provided for use with polyaxial pedicle screws and substantially straight shank pedicle screws in spinal applications. In a separate aspect of the invention, a bone screw connector (114) having an interference type fit is also provided. A method for implanting the device is also provided.

Description

ADJUSTABLE ROD AND CONNECTOR DEVICE AND METHOD OF USE
FIELD OF THE INVENTION This invention relates generally to an adjustable rod and connectors for stabilizing a portion of the spine or stabilizing two or more bone segments, and a method of using the same.
BACKGROUND OF THE INVENTION The use of fixation devices for the treatment of vertebrae deformities and injuries is well known in the art. Various fixation devices are used in medical freatment to correct curvatures and deformities, treat trauma and remedy various abnormal spinal conditions.
The prior art fails to provide a low-profile device that allows the rod length to be easily adjusted during implantation with a minimal amount of effort by the installing surgeon. More particularly, where at least two bones or bone segments are involved, such as a first vertebra and a second vertebra, the rod typically extends beyond the connector, and needs to be specifically chosen or otherwise cut to accommodate the dimensions of the subj ect patient. Therefore, a need exists to provide an adjustable length rod implantation assembly and component parts that can be installed relatively easily by a surgeon, and that has the ability to be adjusted at the moment of implantation to thereby accommodate the geometry requirements of the patient.
The prior art also fails to provide pedicle screw to rod connectors that can be easily adjusted at the time of implantation. Such devices are needed to further accommodate the individual patient's requirements that exist and that are encountered upon performing and incision and encountering in situ conditions. In view of the above, there is a long felt but unsolved need for devices and methods that avoid the above-mentioned deficiencies of the prior art and that are relatively simple to employ and require relatively minimal displacement or removal of bodily tissue.
SUMMARY OF THE INVENTION The present invention addresses the shortcomings of the prior art. More specifically, implant assemblies and/or components of an implant are provided that allow a surgeon to adjust the implant for the patient's requirements as they are encountered during surgery, and or which allow the surgeon to use low-profile implant components that result in minimal displacement of bodily tissue.
The above and other aspects of the invention are realized in specific illustrated embodiments of the invention, and components thereof. Thus, in one aspect of the present invention, a spinal rod implant for spanning at least one intervertebral disc is provided. The implant is interconnectable to a first vertebra using a first pedicle screw, and to a second vertebra using a second pedicle screw. The first pedicle screw is separated from the second pedicle screw by a bridge distance. The implant comprises a first rod member for interconnecting to the first vertebra, where the first rod member includes a beam having an effective length shorter than the bridge distance. The implant also includes a second rod member for interconnecting to the second vertebra, where the second rod member includes a clamp sized to receive at least a portion of the beam. The clamp also has an effective length shorter than the bridge distance. In addition, the implant includes a means for tightening the clamp to create a force to secure the beam within the clamp. In a separate aspect of the invention, a surgical implant is provided, where the implant comprises a first rod member including a beam and a second rod member including an opening sized to circumferentially receive the beam. The second rod member also includes an interior hollow chamber for longitudinally receiving at least a portion of the beam. In addition, the second rod member includes an upper arm and an opposing lower arm spaced apart by a slot, wherein the slot is contiguous with the interior hollow chamber. The upper arm is moveable to contact the beam and compress the beam between the upper arm and the lower arm. In addition, the implant includes a means for tightening the second rod member to secure the beam within the second rod member.
A component of the assembly also has application to devices other than a rod implant that is parallel to the spine and that spans an intervertebral disc. For example, the clamp component could be used in bone stabilization unrelated to the spine. Alternatively, it could be used in rod extensions, or it could be adapted for use in cross-link assemblies that are used to structurally interconnect right and left stabilization assemblies that are implanted on either side of a spinous process. Thus, it is one aspect of the present invention to provide a rod member for use with a bone stabilizing rod, the rod member comprising and an upper arm and a lower arm interconnected to the upper arm. At least a portion of the lower arm is separated from the upper ann by a slot and a hollow chamber, where the hollow chamber is sized to receive at least a portion ofthe bone stabilizing rod. The upper arm is moveable to compress and secure the portion ofthe bone stabilizing rod between an interior surface ofthe upper arm and an interior surface ofthe lower arm. One embodiment ofthe present invention features a rod clamping component that can be used in conjunction with a TSRH 3D pedicle screw known to those skilled in the art. The clamping component includes a deformable connector that preferably resides within a cavity in the rod clamping component. The deformable connector has potential application to being used with structures other than pedicle screws. For example, the deformable connector can be used with a properly adapted stabilizing rod that is used for bones other than the spine. Thus, it is one aspect ofthe present invention to provide a deformable connector for use with a stabilizing rod clamp, the deformable connector capable of securing a portion of a substantially cylindrical member, such as a shank of a TSRH 3D pedicle screw or a stabilizing rod, within a cavity in the stabilizing rod clamp. The deformable connector preferably comprises a disc having a passageway adapted to receive the substantially cylindrical member. In addition, the deformable connector preferably includes a groove along an exterior surface ofthe disc and extending to the passageway. When compressed within the stabilizing rod clamp, the disc secures the cylindrical member within the passageway. It is further desirable to provide a low-profile connector that can be easily used in combination with a shank of a bone screw, hi a separate embodiment, low profile connector is provided that utilizes an interference-type fit to secure the connector to the shank ofthe bone screw. Thus, it is one aspect ofthe present invention to provide a connector device for a bone screw, the connector device comprising a clamp that includes an upper section and a lower section separated by a slot. The upper section includes a first aperture and the lower section includes a second aperture substantially aligned with the first aperture, where the first and second apertures are sized to accommodate a shank ofthe bone screw. The connector further includes a tightening member operatively connected to the upper section and the lower section. The tightening member tightens the clamp and reduces the size of the slot between the upper section and the lower section. This secures the shank ofthe bone screw within the device. It is a further aspect ofthe present invention to provide a bone stabilization assembly for securing a first bone segment to a second bone segment. This has particular application to being used to bridge an intervertebral disc between two vertebra. The assembly comprises a first bone screw attachable to the first bone segment and a second bone screw attachable to the second bone segment. In addition, the assembly includes a first rod member including a beam and an end connector, where the end connector is attachable to the first bone screw. Also, the assembly includes a second rod member. The second rod member includes an interior hollow chamber for longitudinally receiving at least a portion ofthe beam ofthe first rod member. The second rod member includes an upper arm and an opposing lower arm, where the upper arm and the lower arm are spaced apart by a slot, and wherein the slot is contiguous with the interior hollow chamber. The upper arm is moveable and/or deformable to contact the beam and compress the beam between the upper arm and the lower arm. In addition, the second rod member includes a connector attachable to the second bone screw. The assembly also includes a means for tightening the second rod member to secure the beam within the second rod member.
The present invention also includes various methods for using the devices presented herein. One such method concerns stabilizing one or more vertebra using an assembly. Thus, it is one aspect of the present invention to provide a method of stabilizing a first vertebra to a second vertebra. The method comprises the steps of attaching a first pedicle screw to the first vertebra and a second pedicle screw to the second vertebra, hi addition, the method includes a step of inserting a beam of a first rod member into a second rod member, where the second rod member includes an interior hollow chamber for longitudinally receiving at least a portion ofthe beam ofthe first rod member. The second rod member also includes an upper arm and an opposing lower arm, where the upper arm and the lower arm spaced apart by a slot, and wherein the slot is contiguous with the interior hollow chamber. The upper ann is moveable to contact the beam and compress the beam between the upper arm and the lower arm. In addition, the second rod member includes an integral com ector for attaching the second rod member to the second pedicle screw. The method also includes the step of connecting the first rod member to the first pedicle screw using a connector interconnected to the beam. In addition, the method includes the step of advancing a single tightening mechanism to secure (a) the second rod member to the beam of the first rod member, and (b) the second rod member to the second pedicle screw.
Various embodiments ofthe present invention are set forth in the attached figures and in the detailed description ofthe invention as provided herein and as embodied by the claims. It should be understood, however, that this Summary of the Invention may not contain all of the aspects and embodiments of the present invention, is not meant to be limiting or restrictive in any manner, and that the invention as disclosed herein is and will be understood by those of ordinary skill in the art to encompass obvious improvements and modifications thereto. Additional advantages ofthe present invention will become readily apparent from the following discussion, particularly when taken together with the accompanying drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
Fig. 1 is a side elevation view of one assembly that incorporates aspects ofthe present invention, wherein the assembly includes a first embodiment of a first rod member, a first embodiment of a second rod member, polyaxial pedicle screws, tension links, and tension link nuts;
Fig. 2 is a side elevation view of one assembly ofthe present invention shown after implantation into two vertebra; Fig. 3 is a side elevation view of a first embodiment of a first rod member including a beam and an end connector that includes a socket;
Fig. 4 is a perspective view ofthe device shown in Fig. 3;
Fig. 5 is a perspective view of the device shown in Fig. 3 in combination with a polyaxial pedicle screw and a tension link; Fig. 6 is a side perspective view of a first embodiment of a second rod member;
Fig. 7 is a reverse side elevation view of a one assembly ofthe present invention; Fig. 8a is a cross sectional view along line 8a-8a shown in Fig. 1, wherein the beam has a circular cross section;
Fig. 8b is a cross sectional view along line 8a-8a shown in Fig. 1, wherein the beam has an oblong-shaped cross section;
Fig. 9 is a side elevation view of a second rod member; Fig. 10 is a bottom perspective view of a second rod member;
Fig. 11 is a bottom perspective view of a first rod member within a second rod member;
Fig. 12 is a top perspective view of a first rod member within a second rod member; Fig. 13 is a side elevation view of a second rod member having a recess on its upper arm and projection on its lower arm;
Fig. 14 is a side elevation view of a second embodiment of a second rod member that includes a deformable connector;
Fig. 15 is a side elevation view of a second embodiment of a first rod member that includes a deformable connector;
Fig. 16a is a side perspective view of one version of a deformable connector or disc;
Fig. 16b is a side perspective view of a second version of a deformable connector or disc, wherein the disc includes a side grove;
Fig. 17 is a plan view ofthe device shown in Fig. 16b; Fig. 18 is a side elevation view ofthe device shown in Fig. 16b in combination with a pedicle screw having a substantially straight upper shank portion;
Fig. 19 is a side elevation view of a modified version ofthe device shown in Fig. 16b;
Fig. 20 is a plan view of a yet a different version of the device shown in Fig 16b, wherein the device of Fig. 20 is spherical in shape rather than disc shaped; Fig. 21 is a side elevation view ofthe device shown in Fig. 20;
Fig. 22 is a side elevation view of one assembly that incorporates aspects of the present invention, wherein the assembly includes a third embodiment of a first rod member, a second embodiment of a second rod member;
Fig. 23 is a plan view ofthe assembly shown in Fig. 22; Fig. 24 is a side elevation view ofthe third embodiment of a first rod member shown in Fig. 22;
Fig. 25 is a plan view ofthe device shown in Fig. 24;
Fig. 26 is a side elevation view of separate embodiment of the. device shown in Fig. 24; Fig.27 is apian view of an assembly having a second embodiment ofthe second rod member, wherein the deformable connector ofthe second rod member has an indentation that cooperates with the tightening member;
Fig. 28 is a side elevation view of one assembly that incorporates aspects of the present invention, wherein the- assembly includes a first embodiment of a first rod member, a second embodiment of a second rod member;
Fig. 29 is a plan view of a second embodiment of a deformable connector, wherein the deformable connector has a skeletonized structure;
Fig. 30 is a side elevation view of the deformable connector shown in Fig. 29, in combination with a pedicle screw having a substantially straight upper shank portion.
While the following disclosure describes the invention in connection with those embodiments presented, one should understand that the invention is not strictly limited to these embodiments. Furthermore, one should understand that the drawings are not necessarily to scale, and that in certain instances, the disclosure may not include details which are not necessary for an understanding ofthe present invention, such as conventional details of fabrication.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT Referring to Fig. 1, a first embodiment of an adjustable rod implant 10 is shown. The adjustable rod implant 10 is preferably a multi-piece implant, and more preferably, a two- piece rod implant. By way of example and without limitation, the adjustable rod implant 10 can be used as a structural bridge to span a section of bone, or to span a distance between two portions of bone, or to span a distance between two different bones. As shown in Fig. 2, in one anticipated use, the adjustable rod implant 10 can be used as a vertebral bridge to span at least one intervertebral disc D between two vertebra V, and V2. Accordingly, by way of illustration and without intending to limit the possible uses of the present invention, the examples of usage presented herein are generally directed toward spanning at least one intervertebral disc.
The adjustable rod implant 10 is preferably attached to the subject vertebrae using pedicle screws, with a connector interconnecting the pedicle screws to the adjustable rod implant 10. The pedicle screws used with the adjustable rod- implant 10 maybe of atype that allow for some rotational or polyaxial adjustment prior to securing the adjustable rod implant 10, as discussed further below, or the pedicle screws may be of the type that do not allow rotational or polyaxial adjustment. The adjustable rod implant could be used with other types of bone pedicle screws. For example, although not shown, instead of pedicle screws, the rod implant may be used with hook devices that attach to the vertebrae, such hook devices being known to those skilled in the art.
Referring again to Fig. 1, the adjustable rod implant 10 includes a first rod member 12. The first rod member 12 includes a rod or beam 14. As best shown in Fig. 3, the beam 14 has a longitudinal axis LAb-LAb. Beam 14 has a first beam end or distal beam end 16 and a second beam end or proximate beam end 18. The beam 14 also includes a posterior or top side 20 and an anterior or bottom side 22. The beam 14 may have a solid interior or it may have a hollow interior, depending upon the strength requirements ofthe particular application in which it is being used. For most spinal surgeries, it is anticipated that beam 14 will be solid. First rod member 12 may be interconnected to a pedicle screw using a separate connector that is not an integral part of first rod member 12. Alternatively, an integral connector may be used. For the embodiment shown in Fig. 1, first rod member 12 includes an end connector 24 attached to the proximate beam end 18 of beam 14. End connector 24 is used to interconnect beam 14 to a pedicle screw. The end connector 24 is preferably incorporated directly into the first rod member 12 in the form of a receptacle 26.
Refeπing to Figs. 1 and 3-5, end connector 24 is shown located at the proximate beam end 18 of a beam 14. In a preferred embodiment, the end connector 24 is adjustable and includes a receptacle 26 that is in the form of a socket that preferably includes a socket exterior 28 and a socket interior 30. The socket interior 30 essentially acts as a low-profile connector. The receptacle 26 is sized to fit over and receivingly accept a substantially spherical-headed pedicle screw, such as the enlarged area 32 of a polyaxial pedicle screw 34. Accordingly, socket interior 30 is preferably a recessed area at the proximate beam end 18 of a beam 14 that fits over the enlarged area 32 ofthe polyaxial pedicle screw 34. As shown in Figs. 1 and 3-5, the socket interior 30 is preferably nearly spherical, to match a spherical- type shape of enlarged area 32 of the polyaxial pedicle screw 34. However, the socket interior 30 may be a variety of shapes that match the head ofthe pedicle screw. Within the top center area ofthe receptacle 26 is a tension link cavity 36 that is sized to accommodate the shaft 38 of a tension link 40. Referring to Figs. 1 and 4, the tension link cavity 36 can be seen as an opening through the top of receptacle 26.
Refeπing now to Fig. 3, a side perspective view ofthe first rod member 12 is shown. The first rod member 12 includes the beam 14 and preferably includes an end connector 24 that is integrally formed with the beam 14, where the end connector 24 is positioned at the second end 18 ofthe rod member 14. As discussed, the end connector 24 includes structural features the allow the beam 14 to be interconnected to an appropriately configured pedicle screw S. Referring now to Fig. 4, a top perspective view ofthe first rod member 12 is shown.
For embodiments having an end connector 24, this view illustrates the tension link cavity 36 positioned at substantially the top ofthe end comiector 24 at the proximate beam end 18 of the first rod member 12. The tension link cavity 36 is sized to accommodate the diameter of the shaft 38 of a tension link 40. Refeπing now to Fig. 5, a bottom perspective view of the first rod member 12 is shown with an end connector 24, a polyaxial pedicle screw 34, a tension link 40, and a tension link nut 58. The substantially spherical enlarged area 32 of the polyaxial pedicle screw 34 and the substantially spherical socket interior 30 ofthe end connector 24 allows the end connector 24 to be rotated and adjusted over the enlarged area 32 of a polyaxial pedicle screw 34 before tightening using the tension link nut 58, thus providing adjustability to the rod, connector, and pedicle screw configuration.
When located at the proximate beam end 18 of beam 14, the principal advantage of the integral end connector 24 is to shrink the profile of the configuration as a system, and thereby reduce the length of the rod implant 10 that is longitudinally exposed beyond the pedicle screw location. In so doing, in spinal implant applications, the adjacent vertebra beyond the end of the first rod member 12 is not exposed to potentially impacting a rod section that would have previously extended longitudinally beyond the connector location. This can reduce patient pain and increase patient mobility. A further advantage is that the smaller profile results in less tissue displacement in the vicinity of end connector 24. However, it is again noted that a separate rod to pedicle screw connector known to those skilled in the art may be used to attach a section of rod to a pedicle screw, and therefore, although preferred, and end connector 24 is not required.
Refeπing again to Fig. 1 and also Fig. 6 and 9, the second rod member 42 of the adjustable rod implant 10 is shown. The second rod member 42 functions as a clamp, and is preferably a one-piece structure that is deformable to create a compressive force and secure the first rod member 12 within the second rod member 42 when a means for clamping or tightening the second rod member 42 is applied. The second rod member 42 includes an interior hollow chamber 44. The interior hollow chamber 44 is an elongated hollow region having a longitudinal axis LAC-LAC. The interior hollow chamber 44 is sized to accommodate at least a portion ofthe beam 14 ofthe first rod member 12.
Refeπing now to Fig. 10, the second rod member 42 preferably includes a slot 46 that separates an upper arm 48 from a lower arm 50. The lower ann 50 acts as a base for the second rod member 42. The slot 46 forms a gap that can be selectively reduced, whereby the slot 46 allows the upper arm 48 to be selectively deflected toward the lower arm 50. As best seen in Fig. 10, the second rod member 42 also includes a distal opening 52 that leads to the interior hollow chamber 44. The distal opening 52 is sized to receive the beam 14. More particularly, the distal beam end 16 of beam 14 can be inserted into the distal opening 52, and the beam 14 selectively slid into the interior hollow chamber 44.
Refeπing to Figs. 1 and 7, adjustment arrow Aj shows that the beam 14 may be moved from right to left and from left to right within the interior hollow chamber 44 ofthe second rod member 42 prior to applying a clamping or tightening force to the second rod member 42. The length ofthe beam 14 that is slid into the interior hollow chamber 44 can be adjusted by the surgeon. Figs. 11 and 12 show two different perspective views of the beam 14 ofthe first rod member 12 positioned within the hollow chamber 44 ofthe second rod member 42. Since the overall length ofthe implant 10 can be adjusted at the time ofthe implantation by the surgeon, this allows the surgeon to readily accommodate a patient's particular needs.
By application of a clamping or tightening force to the second rod member 42, the upper arm 48 and lower arm 50 are compressed toward each other, thereby securing the beam 14 within the second rod member 42. In the prefeπed embodiment shown in Fig. 1, the base or lower arm 50 remains substantially immobile, and the upper arm 48 is deflected toward the lower arm 50. Arrows A2 of Figs. 1 and 7 show that the upper arm 48 is forced toward the lower arm 50. That is, the upper arm 48 acts as a moveable and/or deformable structure that is suspended over the interior hollow chamber 44, and which can be forced toward the lower arm 50. In so doing, at least a portion ofthe interior surface 54 ofthe upper arm 48 applies a compressive force to the top side 20 of the beam 14. The beam 14 then presses downward such that the bottom side 22 ofthe beam 14 presses against the interior surface 56 of the base or lower arm 50 of the second rod member 42. This interaction of forces causes the beam 14 to be compressively secured within the second rod member 42.
Referring again to Fig. 1, similar to first rod member 12, the second rod member 42 preferably includes an end connector 24 attached to lower arm 50 of the second rod member 42. The end connector 24 is used to interconnect the second rod member 42 to a polyaxial pedicle screw 34. The end connector 24 is preferably incorporated directly into the second rod member 42 in the form of a receptacle 26. When located at the end ofthe second rod member 42, the principal advantage ofthe integral end connector 24 is to shrink the profile of the configuration as a system, and thereby reduce the length of the rod implant 10 that is longitudinally exposed beyond the pedicle screw location, h so doing, in spinal implant applications, the adjacent vertebra beyond the end of the second rod member 42 is not exposed to potentially impacting a rod section that would have previously extended longitudinally beyond the connector location. This can reduce patient pain and increase patient mobility. A further advantage is that the smaller profile results in less tissue displacement in the vicinity ofthe end connector 24.
The structure ofthe end connector 24 for the second rod member 42 is similar to that for the first rod member 12. However, both the upper arm 48 and lower arm 50 ofthe second rod member 42 include a tension link cavity 36 that is sized to accommodate the shaft 38 of the tension link 40. Refeπing to Fig. 1 , the tension link cavity 36 can be seen as an opening through the top ofthe end ofthe upper arm 48, where the tension link cavity 36 in the upper arm 48 is aligned with the tension link cavity 36 in the lower arm 50. The pedicle screw to be connected to the second rod member 42 is preferably fitted with a tension link 40, and the tension link shaft 38 is extended through the tension link cavity 36 in the receptacle 26 and through the tension link cavity 36 in the upper arm 48. A tension link nut 58 is then threaded onto the end ofthe tension link shaft 38 and is tightened. The tension link nut 58 provides the tightening or clamping force for the second rod member 42, thereby deflecting the upper arm 48 toward the lower arm 50 and securing the beam 14 within the second rod member 42. Refeπing again to Fig. 1, preferably, a notch 60 is positioned in the second rod member 42 near the distal opening 52. For those embodiments incorporating a notch 60, the distal opening 52 next to the notch 60 is essentially a hoop structure 62 through which the beam 14 passes to enter the interior hollow chamber 44. The notch 60 longitudinally separates the distal opening 52 from a second opening or interior opening 64. The interior opening 64 is formed by an arch 66 extending from and interconnecting the upper arm 48 to the lower ann 50. As shown in Figs. 1, 2 and 7, in a side elevation view, the notch 60 may be a variety of shapes, such as an inverted U-shape, or an inverted V-shape. Although not required, the hoop structure 62 of the distal opening 52 aligns and supports the beam 14 when it is positioned within the interior hollow chamber 44 prior to tightening of the second beam member 42. The hoop structure 62 of the distal opening 52 also functions to prevent the beam 14 from rocking up and down prior to applying a clamping or tightening force to the second rod member 42. More particularly, the hoop structure 62 substantially maintains the alignment ofthe longitudinal axis LAb-LAb ofthe beam 14 with the longitudinal axis LAC- LAC ofthe hollow chamber 44 ofthe second rod member 42 while sliding the beam 14 into the second rod member 42 and implanting the rod implant 10, and through such time as a clamping or tightening force is applied to the second rod member 42. The notch 60 also serves to lighten the second rod member 42 by reducing its mass.
The beam 14 and the second rod member 42 work in combination to provide an adjustable rod segment that can be shortened or lengthened during the implant procedure by the surgeon to accommodate the specific spacial requirements ofthe patient. One particular use ofthe implant is to span one level (one intervertebral disc). Referring to Fig. 2, in use, the surgeon first inserts a first pedicle screw 34 into a first vertebra Vj ofthe patient, and then inserts a second pedicle screw 34 into a second vertebra V2 ofthe patient. Tension links 40 are then inserted into the enlarged areas 32 ofthe pedicle screws 34. Alternately, the tension links are preloaded into the pedicle screws before they are implanted into the vertebrae. The beam 14 is then interconnected to the first pedicle screw 34 using a first connector, and the second rod member 42 is interconnected to the second pedicle screw 34 using a second connector. To perform this step, the beam 14 is preferably loosely inserted into the second rod member 42 in advance of interconnecting the second rod member 42 to the second pedicle screw. That is, the surgeon pre-assembles the beam 14 of the first rod member 12 inside the second rod member 42, but does not tighten the two members together. The surgeon then lowers both the first rod member 12 and the second rod member 42 as a unit over the pedicle screws. Referring again to Figs. 1 and 2, the surgeon then preferably tightens a link nut 58 over the tension link shaft 38 that is associated with the first rod member 12. Again, the surgeon may then adjust the length ofthe beam 14 inside the second rod member 42 by sliding the beam 14 into or out ofthe clamp to obtain the proper bridge distance needed between the first pedicle screw and the second pedicle screw. Subsequently, the surgeon can apply a tightening force to the second rod member 42 to secure the beam 14 within the second rod member 42. The implant 10 provides the surgeon the ability to tighten the second rod member 42 to its associated pedicle screw and also clamp the second rod member 42 to the first rod member 12 using one effort and one structure. This is accomplished in the prefeπed assembly shown in Figs. 1 and 2 by applying and tightening a link nut 58 to the tension link shaft 38 of the tension link 40, which is operatively connected to the enlarged area 32 of the pedicle screw 34 associated with the second rod member 42. This action progressively and selectively deflects the upper arm 48 toward the lower arm 50, thereby compressively securing the beam 14 of the first rod member 12 within the second rod member 42.
Refeπing now to the prefeπed embodiment shown in Fig. 2, and for purposes of this description, an effective beam length L,, of beam 14 is defined as the distance from the pedicle screw to which it is attached to the distal beam end 16. The effective clamp length Lc of second rod member 42 is defined as the distance from the pedicle screw to which it is attached to the distal opening 52. For the assembly shown in Fig. 2, both the effective beam length L,, and the effective clamp length Lc are shorter than the bridge distance DB, which is the distance between the first pedicle screw and the second pedicle screw.
Refeπing now to Fig. 3, rotational adjustability ofthe implant 10 can be provided by using a beam 14 that is rotatable within the interior hollow chamber 44. For example, a beam 14 having a circular cross section like that shown in Fig. 8a can be coupled with a second rod member 42 preferably having a circular distal opening 52 and interior hollow chamber 44. In this example, the circular cross section of beam 14 maybe rotated within the second rod member 42, thereby allowing the surgeon the ability to rotate and angularly adjust the position of the first rod member 12 relative to the second rod member 42. Rotational adjustability is permitted before applying a tightening force to the second rod member 42 and securing the beam 14 within the interior hollow chamber 44 of the second rod member 42. Fig. 8b illustrates that beam 14 may have a cross section resembling an oblong shape. For this variation, the distal opening 52 and interior hollow chamber 44 are also preferably substantially oblong in shape. This modification provides an assembly that does not allow rotation of the first rod member 12 relative to the second rod member 42, which may be desirable in certain situations. Of course, other configurations are possible, such as coπesponding triangular, rectangular, and polygonal shapes (not shown). In addition, the beam cross-section may differ from the shape of the cross-section of the interior hollow chamber. Thus, a variety of shapes and combination of shapes are possible for the cross section ofthe beam 14 and the interior hollow chamber 44, and such possible different shapes for the structures are within the scope ofthe present invention.
Refenϊng now to Fig. 13, the upper arm 48 of the second rod member 42 may optionally include a recess 68 for receiving a cooperating projection 70 positioned on the edge of the slot of the lower arm 50. The recess 68 and projection 70 may be a variety of shapes, and may include means for interlocking. For example, the projection 70 may include a barb (not shown) that interlocks with one or more ridges (not shown) within the recess 68. The position of the recess 68 and projection 70 may be reversed such that the recess is located on the lower ann 50 and the projection is located on the upper arm 48.
Referring to Figs. 1-13, the socket exterior 28 ofthe end connector 24 at one or both ofthe first rod member 12 and second rod member 42 may be rounded to substantially minor the socket interior 30 as shown in Fig. 1. Alternatively, it may be have a different shape, such as the block shape shown in Fig. 7. Additionally, as shown in Fig. 1, the center ofthe enlarged areas 32 ofthe polyaxial pedicle screws 34 may be substantially aligned with the longitudinal axis ofthe beam 14 ofthe first rod member 12, and aligned with the longitudinal axis ofthe hollow chamber 44 ofthe second rod member 42, or the centers may be offset, as shown in Fig. 7. In general, amongst its possible uses, the rod implant 10 permits a length of rod to be adjusted at the surgical site without having to cut the rod, or use a standardized rod length that may not fit the patient. Furthermore, utilizing the components ofthe present invention, the entire assembly can be tightened by securing a link nut 58 at the second rod member 42. This greatly simplifies the surgeon's efforts and serves to reduce operation time and associated patient risk. In addition, as will be appreciated by those skilled in the art, among its many potential uses the second rod member 42 can be used to attach a new section of rod to an existing section of rod, to extend a section of rod, to provide length adjustability to a rod, to provide a means of attaching a separate structure to the end of a new or existing rod, to provide a means of attaching a separate structure to the end of a new or existing rod while adjusting the length ofthe rod, or to reinforce an existing section of rod.
Refeπing now to Fig. 14, a further embodiment of the second rod member 42' is shown. Second rod member 42' includes a number of structural features that are similar to the previously described second rod member 42. That is, an interior hollow chamber 44 is sized to receive a beam 14 of a first rod member 12, and the second rod member 42' functions as a clamp to provide a compressive force to secure the beam 14 ofthe first rod member 12 within the interior hollow chamber 44. Second rod member 42' differs from second rod member 42 in that it includes a deformable connector 72 that can be used to secure the second rod member 42' to a pedicle screw, wherein the pedicle screw has a substantially straight upper shank portion, such as a TSRH 3D pedicle screw 74 known to those skilled in the art. More particularly, the deformable connector 72 acts as a clamp within a clamp, by providing a compressive force around a portion ofthe shank 76 of a pedicle screw 74.
Referring still to Fig. 14, the deformable connector 72 is situated within an open portion or cavity 78 of the second rod member 42'. The upper arm 48 of the second rod member 42' preferably includes a upper ann shoulder 80 against which a portion of the deformable connector 72 is positioned. Similarly, the lower arm 50 of the second rod member 42' preferably includes a lower arm shoulder 82, also against which a portion ofthe deformable connector 72 is positioned. In addition, the second rod member 42' includes a tightening member 84 that serves as a means for tightening the second rod member 42' such that the second rod member 42' compresses and acts as a clamp to hold the beam 14 ofthe first rod member 12 secure. In one prefeπed embodiment, tightening member 84 is a screw or bolt positioned on a substantially opposing side ofthe deformable connector 72 relative to the positions ofthe upper ann shoulder 80 and the lower arm shoulder 82. That is, the tightening member 84 is preferably on one side ofthe shank 76 ofthe pedicle screw 74, and the upper arm shoulder 80 and the lower arm shoulder 82 are on situated on an opposing side ofthe shank 76 ofthe pedicle screw 74. When tightened, the tightening member 84 not only draws the upper arm 48 and the lower arm 50 together, thereby compressing the second rod member 42', but also necessarily shrinks the size of the cavity 78 and consequently confines the deformable connector 72 between the upper arm shoulder 80, the lower arm shoulder 82 and a shank 86 of the tightening member 84. When fully tightened, the tightening member 84 puts at least a first point 90 ofthe perimeter 92 ofthe deformable connector 72 in contact with the upper arm shoulder 80. In addition, when fully tightened, the tightening member 84 puts at least a second point 94 of the perimeter 92 of the deformable connector 72 in contact with the lower arm shoulder 82. hi addition, the shank 86 ofthe tightening member 84 contacts at least a third point 96 on the perimeter 92 ofthe deformable connector 72. These at least three points 90, 94, and 96 compress the defonnable connector 72 such that it securely holds the shank 76 ofthe pedicle screw 74. Preferably, at least one ofthe upper arm shoulder 80 and the lower arm shoulder 82 are not parallel to a side surface 88 ofthe shank 76 ofthe pedicle screw 74. Refeπing now to Fig. 15, the defonnable connector 72 may also be adapted for use in a first rod member 12', wherein the first rod member 12' includes a beam 14 that is connected to a pedicle screw 74 byway ofthe deformable connector 72 that is situated within a cavity 78 ofthe first rod member 12'. Here, the deformable connector 72 is again confined within the first rod member 12' by a upper arm shoulder 80 and lower arm shoulder 82, and further by the shank 86 of the tightening member 84.
Refeπing to Figs. 14 and 15, one advantage to a substantially cylindrical-shaped deformable connector 72 is that it can be rotated within the cavity 78 prior to tightening to accommodate the position ofthe pedicle screw 74. Therefore, second rod member 42' with deformable connector 72 overcomes the problem of where the pedicle screw 74 is not aligned sufficiently perpendicular to the intend rod axis. A substantially cylindrical-shaped deformable connector 72 can be rotated within the cavity 78 and then slipped over the shank 76 ofthe pedicle screw 74, and subsequently secured within the second rod member 42' by tightening the tightening member 84. Thus, deformable connector 72 in combination with a clamping style first rod member 12' or second rod member 42' is rotatably adjustable prior to tightening. Rotation aπows A3 illustrate that the deformable connector 72 is rotatable within the cavity 78. This allows a surgeon to accommodate a patient's particular needs during the surgical procedure.
For the devices shown in Figs. 14 and 15, and assuming that at least one of either first rod member 12' or second rod member 42' is being used, in use, a surgeon first installs a bone screw for general applications, or a pedicle screw if the device is to be interconnected to the pedicle of a vertebra. Assuming the device is used in an assembly for bridging an intervertebral disc, a second pedicle screw is attached to the other vertebra, or an existing second pedicle screw is used. Alternatively, the device could be used where two existing pedicle screws were already in place. The surgeon then preferably inserts the beam ofthe first rod member into the second rod member. Subsequently, the surgeon preferably lowers the first rod member and second rod member as a unit over the pedicle screws. The shank 76 of the pedicle screw 74 associated with first rod member 12' or second rod member 42' is slipped into the passageway 98 ofthe defonnable connector 72 that is positioned in the cavity 78 ofthe respective first rod member 12' or second rod member 42'. The deformable connector 72 is rotated as desired by the surgeon to obtain the proper alignment in order to slip the first rod member 12' or second rod member 42' over the pedicle screw 74. If first rod member 12' is being used, then the surgeon tightens first rod member 12' to its pedicle screw by advancing the tightening member 84 associated with the first rod member 12'. If first rod member 12' is not being used, then the rod member opposite the second rod member 42' is preferably otherwise secured to its pedicle screw. Subsequently, after adjusting the length ofthe beam 14 within the second rod member, the second rod member is then secured to the first rod member. If second rod member 42' is being used, then the securing step is accomplished by advancing the tightening member 84 associated with the second rod member 42'.
Refeπing now to Figs. 16-19, in one prefeπed embodiment, the defonnable connector 72 is substantially cylindrical in shape, and this shape allows the cylindrical deformable connector 72 to rotate within the cavity 78 ofthe second rod member 42'. The defonnable connector 72 includes a passageway 98 for receiving the shank 76 ofthe pedicle screw 74. More particularly, the passageway 98 is an opening through the defonnable connector 72 that is sized to accommodate the shank 76 of a pedicle screw 74. In addition, the deformable connector 72 has a composition or structure allowing the defonnable connector 72 to compress around the shank 76 of the pedicle screw 74 upon tightening of the second rod member 42'. More particularly, as shown in Fig. 16a, the deformable connector 72 maybe made of a type of material that can be compressed, such as a suitable resilient material. In use, upon tightening the tightening member 84, the deformable connector 72 is squeezed and compressed between the upper arm shoulder 80, lower arm shoulder 82 and the shank 86 of the tightening member 84 such that the shank 76 ofthe pedicle screw 74 is secured within the deformable connector 72, which in turn, is secured within the second rod member 42'.
Alternatively, as shown in Figs. 16b, 17, and 18, in a preferred embodiment, the defonnable connector 72 may include a slit or groove 100 along a side that preferably intercepts the passageway 98. The groove includes a first edge 102 and an opposing and separated second edge 104. In use, upon tightening the tightening member 84, the deformable connector 72 is squeezed and compressed between the upper arm shoulder 80, lower arm shoulder 82 and the shank 86 ofthe tightening member 84. The first edge 102 of the groove 100 is moved in a direction of arrow A4 toward the second edge 104, which is being moved in a direction of arrow A5 toward first edge 102. As a result ofthe tightening force, the groove 100 allows the passageway 98 of deformable connector 72 to collapse around the shank 76 ofthe pedicle screw 74, such that the pedicle screw 74 is secured within the deformable connector 72, which in turn, is secured within the second rod member 42'.
The deformable connector 72 is anticipated to have a diameter of approximately 10 to 13 mm, and the passageway 98 within the deformable connector 72 is anticipated to have a diameter just slightly larger than the diameter ofthe shank 76 of a pedicle screw 74, which is typically on the order of about 5.2 mm in size.
Referring now to Fig. 19, for the case of a substantially cylindrical-shaped deformable connector 72, portions ofthe deformable connector 72 maybe truncated to reduce the weight and displacement volume ofthe deformable connector 72. For example, a truncated first end 106 and/or a truncated second end 108 ofthe deformable connector 72 can be flattened or otherwise modified in shape. Preferably, the truncated first end 106 and truncated second end 108 are located at the passageway openings 110 and 112, respectively.
Referring now to Fig.20 and 21 , the deformable connector 72 may also take the form of a bead or sphere. A sphere-shaped deformable connector 72 allows the deformable connector 72 to be rotated in a multitude of directions to accommodate alignment with the shank 76 of a pedicle screw 74.
Referring now to Fig. 22, in a separate aspect of the invention, an interference fit connector 114 is presented. For purposes of illustration, a second rod member 42' is shown in combination with a first rod member 12", wherein first rod member 12" incorporates an interference fit connector 114. For the embodiment shown in Fig. 22, the interference fit connector 114 is integrally attached to the beam 14. More particularly, the proximate beam end 18 of first rod member 12" is attached to an interference fit connector 114.
Refeπing now to Figs. 22-25, interference fit connector 114 has a C-shaped section 116 having a slot 118 separating an upper section 120 from a lower section 122. The first rod member 12" includes a first aperture 124 through the upper section 120, and a second aperture 126 through the lower section 122. In addition, the C-shaped section 116 includes an interference tightening member 128, which serves as a means for tightening the C-shaped section 116 and drawing the upper section 120 and the lower section 122 in closer proximity relative to each other, such that the shank 76 of pedicle screw 74 is pinched or clamped within the C-shaped section 116 and secured to the first rod member 12". As shown in Figs. 22 and 24, the interference tightening member 128, or means for tightening the C-shaped section 116, can preferably take the form of a screw or a bolt. However, a band clamp, such as a wonn-gear band could also be used to compress the upper section 120 and lower section 122 toward each other. Accordingly, a number of means for tightening the C-shaped section 116 are possible and are within the scope ofthe present invention.
One advantage ofthe C-shaped section 116 is that, when used in a first rod member 12", it provides a rod and connector combination that is relatively easy for the surgeon to use. A second advantage is that it limits the length ofthe connector and implant structure that is longitudinally exposed beyond the pedicle screw 74 location, h so doing, in spinal implant applications, the adjacent vertebra beyond the end ofthe first rod member 12" is not exposed to potentially impacting a rod section that would have previously extended longitudinally beyond the connector location. This can reduce patient pain and increase patient mobility. A further advantage is that the smaller profile results in less tissue displacement in the vicinity of C-shaped section 116.
Refeπing now to Fig. 26, a modified version of the device shown in Fig. 24 is presented. The first rod member 12'" shown in Fig.26 incorporates an integral connector that uses an interference fit, but has a reverse orientation as compared to the device shown in Fig. 24. More specifically, the proximate end 18 of first rod member 12'" includes a reverse C- shaped section 130 having a slot 118 separating an upper section 120 from a lower section 122. The first rod member 12'" includes a first aperture 124 through the upper section 120 and a second aperture 126 through the lower section 122. In addition, the reverse C-shaped section 130 includes an interference tightening member 128, which serves as a means for tightening the reverse C-shaped section 130 and drawing the upper section 120 and the lower section 122 in closer position relative to each other, such that the shank 76 of pedicle screw 74 is clamped or pinched within the reverse C-shaped section 130 and secured to the first rod member 12'". As shown in Fig. 26, the interference tightening member 128, or means for tightening the reverse C-shaped section 130, can preferably take the form of a screw or a bolt. However, a band clamp, such as a worm-gear band could also be used to compress the upper section 120 and lower section 122 toward each other. Accordingly, a number of means for tightening the C-shaped section 130 are possible and are within the scope of the present invention.
One advantage ofthe reverse C-shaped section 130 is that, when used in a first rod member 12'", it provides a rod and connector combination that is relatively easy for the surgeon to use. A second advantage is that it provides an interference type of connector fitting where the tightening member 128 is positioned on the opposite side of the pedicle screw 74 as that ofthe rod portion. Therefore, one potential use is for short bridge distances; that is, where the distance between pedicle screws is relatively small, and does not lend itself to placing the tightening member 128 in a position between the pedicle screws being spanned.
In use, a surgeon first installs a pedicle screw, or otherwise identifies an existing bone screw that the interference fit connector is to be attached to. Depending upon the choice of the device by the surgeon, the surgeon then slips the C-shaped section 116 or the reverse C- shaped section 130 over the shank 76 ofthe pedicle screw 74. To tighten the type C-shaped section 116 or the reverse C-shaped section 130 to the pedicle screw 74, the surgeon advances the tightening member 128. If a screw or bolt is used as a tightening member 128, this last step comprises advancing the screw or bolt until the C-shaped section 116 or the reverse C-shaped section 130 is secured to the shank 76 ofthe pedicle screw 74.
An interference fit connector can also be oriented at any angle relative to the beam that is between the pedicle screws. More particularly, Fig.26 illustrates a reverse C-shaped section 130 that is situated at an angle of about 180 degrees relative to the C-shaped section 116 shown in Fig. 24. That is, it is not on the same side as the beam 14, but instead, it is on the opposite side of the pedicle screw relative to the beam 14. However, the C-shaped connector could be oriented at any angle, such as 30, 45, 60, 90, 135, etc. degrees (not shown) relative to the beam 14 to which it is attached. These different orientations for the C-shaped connector maybe preferred depending upon a patient' s needs, for example, because of an injury that makes such an orientation preferable. Refeπing now to Fig. 27, an implant assembly is shown in plan view that includes two pedicle screws with an interference fit type of integral connector such as first rod member 12" shown on the left side, and a second rod member 42" with a deformable connector 72 shown on the right side. However, the deformable connector 72 of Fig. 27 includes a modified shape in the form of an indentation 132 that cooperates with the tightening member 84. The indentation 132 in the deformable connector 72 extends down the side ofthe deformable connector 72. The indentation 132 allows the distance d2 between the right-most pedicle screw 74 and the right-most tightening member 84 to be reduced relative to the distance dj between the right-most pedicle screw 74 and the right-most tightening member 84 as shown in Fig.23. Said differently, distance dj of Fig.23 is less than distance dj of Fig. 27. This can be further reduced by using a screw as a tightening member 84 that has no upper flange. As a result ofthe indentation 132 feature, the distance d3 ofthe length ofthe second rod member 42" between the right-most pedicle screw 74 and the rightmost end of the second rod member 42" is also reduced relative to the distance d4 of the length ofthe second rod member 42' between the right-most pedicle screw 74 and the right- most end of the second rod member 42', as shown in Fig. 23. For spinal implants, the adjacent vertebra beyond the end ofthe second rod member 42" is not exposed to potentially impacting a rod section that would have previously extended longitudinally beyond pedicle screw location. This can reduce patient pain and increase patient mobility. A further advantage is that the smaller profile results in less tissue displacement in the vicinity of second rod member 42". Yet a separate aspect ofthe present invention is that different possible assemblies are available to meet a particular patient's needs. Refeπing now to Fig.28, an implant assembly is shown that includes first rod member 12 in combination with a second rod member 42'. This combination allows for a polyaxial pedicle screw 34 to be used with a pedicle screw having a straight upper shank portion, such as pedicle screw 74 that is shown on the right side ofthe figure.
Refenϊng now to Fig. 29, a modified defonnable connector 72* is shown wherein the deformable connector 72' has a skeletonized structure to reduce its weight. As shown in Fig. 29, in a prefeπed embodiment, the skeletonized structure ofthe deformable connector 72' can take the form of one or more tie beams 134 that structurally tie together portions of the deformable connector 72'. The tie beam 134 may include a textured surface 136 with, for example, a ridged, grooved or roughened surface for allowing the tie beam 134 to be selectively adjusted during the tightening process. The deformable connector 72' can be formed of a structural frame that is partially compressible to lock the pedicle screw 74 in place and prevent its rotation after a tightening force is applied using a tightening member 84.
The exterior surface ofthe beam 14, such as the top side 20 and the bottom side 22 may possess surface features that interlock and aid in securing the beam 14 to the inside of the second rod member 42. Similarly, the inside surfaces ofthe second rod member 42, 42' and/or 42", such as the interior surfaces 54 and/or 56 ofthe upper arm 48 and lower arm 50, respectively, may also include features that interlock and aid in securing the beam 14 within the second rod member 42. For example, the various previously identified surfaces may include detents or depressions that receivingly accept other structural features. Surficial features may include texturing, ridges, bumps, projections, protrusions, indentations, adhesives, and coverings or coatings of alternate materials. In addition, although not required, at least one set screw could be used to interlock the beam 14 to the second rod member 42, 42' and/or 42". In a separate aspect ofthe invention, although the second rod members 42, 42', and 42" are preferably a one-piece, monolithic structure, they may be manufactured, assembled, or implanted in plurality of pieces. By way of example and not limitation, a multi-piece second rod member 42, 42', and 42" can include an upper arm 48 separately and/or hingedly connected to the lower arm 50. Such a structure may be desirable to allow easy insertion of a deformable connector 72 or 72' within a cavity 78 of a second rod member 42' and 42" during the manufacturing process.
The devices and structural features described herein are made from a material that possesses the appropriate sfrength characteristics necessary to withstand loading from the human body when used in medical applications. Tensile sfrength qualities ofthe materials used is a key consideration. Preferably, materials may include ceramics, plastics, metals, or carbon fiber composites. More preferably, the materials are made from titanium, a titanium alloy, or stainless steel.
Devices disclosed herein can also be made of thermal memory materials or materials that possess different elastic properties at varying temperatures. In this aspect of the invention, the subject component(s) may be heated or cooled to a desired temperature, implanted, then subsequently allowed to cool or warm to the temperature of the ambient conditions that will exist during the usage period for the subject device, namely, normal body temperature. The dimensions ofthe devices disclosed herein are expected to vary depending upon the patient's needs. For example, a rod the entire length ofthe spine, such as 2 feet in length, may be used. Alternately, a rod only 10 to 40 mm long may be all that is necessary to span and bridge a disc ofthe spine. Therefore, for spinal applications, the preferable length of rod is simply an adequate length to bridge the necessary vertebral disc or discs. As a separate example, the beams of the first rod members described herein are anticipated to have a diameter of about 3-7 mm if solid and circular in cross section, and on the order of about 4-7 mm in length in the long dimension if solid and oblong in cross section. Again, the size of the dimensions ofthe devices is subject to the material used to construct the subject device, the intend use, and the specific characteristics of the patient. For example, a large person may have larger sized components than a device implanted in a child. The curvature of the rod may also be variable depending upon the desired final curvature sought for the patient. The curvature may be established during manufacture of a given rod, and/or a given rod segment may have its curvature adjusted at the of time surgery prior to implantation. The devices disclosed herein also have application to uses other than those specifically discussed. For example, one or more of the devices described herein have application to uses outside of surgical stabilization. For example, the devices could be used to connect framing of objects such as furniture. Even within the field of medicine and spinal surgery, one anticipated use involves using certain components described herein to cross-link or structurally interconnect right and left stabilization assemblies that are implanted on either side of a spinous process.
While various embodiments ofthe present invention have been described in detail, it is apparent that modifications and adaptations of those embodiments will occur to those skilled in the art. However, it is to be expressly understood that such modifications and adaptations are within the spirit and scope of the present invention, as set forth in the following claims.

Claims

What is claimed is:
1. A spinal rod implant for spanning at least one intervertebral disc, the implant interconnectable to a first vertebra using a first pedicle screw and to a second vertebra using a second pedicle screw, the first pedicle screw separated from the second pedicle screw by a bridge distance, the implant comprising: a first rod member for interconnecting to the first vertebra, said first rod member including a beam, said beam having an effective length shorter than the bridge distance; a second rod member for intercomiecting to the second vertebra, said second rod member including a clamp sized to receive at least a portion of said beam, said clamp having an effective length shorter than the bridge distance; and means for tightening said clamp to create a force to secure said beam within said clamp.
2. The implant as claimed in Claim 1, wherein said clamp includes an interior hollow chamber for receiving said at least a portion of said beam.
3. The implant as claimed in Claim 1, wherein said clamp is of one-piece construction.
4. The implant as claimed in Claim 1 , wherein said clamp includes a deformable upper arm and wherein said means for tightening at least partially compresses said upper arm against said beam.
5. The implant as claimed in Claim 4, wherein said clamp further includes a lower arm wherein said means for tightening at least partially compresses said beam against said lower arm.
6. The implant as claimed in Claim 5, wherein said clamp further includes a slot, wherein said slot bisects a portion of said clamp and wherein said upper arm is spaced apart from said lower ann.
7. The implant as claimed in Claim 1, wherein said clamp further includes an aperture for receiving said beam.
8. The implant as claimed in Claim 7, wherein said clamp further includes a notch spaced apart from said aperture.
9. The implant as claimed in Claim 7, wherein said aperture has a circular shape.
10. The implant as claimed in Claim 7, wherein said aperture has non-circular shape.
11. The implant as claimed in Claim 1, wherein said beam has a circular cross section.
12. The implant as claimed in Claim 1 , wherein said beam has a non-circular cross section.
13. The implant as claimed in Claim 1, wherein said first rod member has a longitudinal axis substantially coincident with a longitudinal axis of said second rod member.
14. The implant as claimed in Claim 1, wherein said means for tightening does not include a set screw.
15. The implant as claimed in Claim 1, wherein said means for tightening comprises an end connector operatively associated with the second pedicle screw.
16. A surgical implant comprising: a first rod member including a beam; a second rod member including an opening sized to circumferentially receive said beam, said second rod member including an interior hollow chamber for longitudinally receiving at least a portion of said beam, said second rod member including an upper arm and an opposing lower ann, said upper arm and said lower arm spaced apart by a slot wherein said slot is contiguous with said interior hollow chamber, and wherein said upper arm is moveable to contact said beam and compress said beam between said upper ann and said lower arm; and means for tightening said second rod member to secure said beam within said second rod member.
17. The implant as claimed in Claim 16, wherein said beam has a longitudinal axis substantially coincident with a longitudinal axis of said second rod member.
18. The implant as claimed in Claim 16, wherein said second rod member is of one-piece construction.
19. The implant as claimed in Claim 16, wherein said second rod member further includes a notch spaced apart from said opening.
20. The implant as claimed in Claim 16, wherein said opening has a circular shape.
21. The implant as claimed in Claim 16, wherein said opening has non-circular shape.
22. The implant as claimed in Claim 16, wherein said beam has a circular cross section.
23. The implant as claimed in Claim 16, wherein said beam has a non-circular cross section.
24. The implant as claimed in Claim 16, wherein said means for tightening does not include a set screw.
25. The implant as claimed in Claim 16, further comprising a first end connector attached to said beam and a second end connector attached to said second rod member.
26. The implant as claimed in Claim 16, wherein said second rod member further includes an end connector at an end of said lower arm, said end connector including a socket for receiving a head of a pedicle screw.
27. The implant as claimed in Claim 26, wherein said socket includes a hole for a tension link shaft, and said upper arm includes a hole substantially aligned with said hole in said socket.
28. The implant as claimed in Claim 16, wherein a deformable connector is situated within a cavity of the second rod member, said deformable connector securing a shank of a pedicle screw to said second rod member upon tightening of said means for tightening.
29. The implant as claimed in Claim 28, wherein said deformable connector is compressed by an upper shoulder of said upper arm, a lower shoulder of said lower arm, and a shank of said means for tightening.
30. The implant as claimed in Claim 28, wherein said defonnable connector comprises a groove.
31. The implant as claimed in Claim 28, wherein said deformable connector is substantially disc-shaped.
32. The implant as claimed in Claim 28, wherein at least a portion of said deformable connector comprises a skeletonized structure.
33. The implant as claimed in Claim 28, wherein at least a portion of said deformable connector has a truncated exterior surface.
34. The implant as claimed in Claim 28, wherein said deformable connector comprises an indentation along a portion of an exterior surface.
35. In subcombination, a rod member for use with a bone stabilizing rod, the rod member comprising:
(a) an upper arm;
(b) a lower arm interconnected to said upper arm, wherein at least a portion of said lower arm is separated from said upper arm by a slot and a hollow chamber, said hollow chamber sized to receive at least a portion ofthe bone stabilizing rod; wherein said upper arm is moveable to compress and secure the portion ofthe bone stabilizing rod between an interior surface of said upper arm and an interior surface of said lower arm.
36. The subcombination of claim 35, wherein the rod member further comprises a distal opening for receiving at least a portion ofthe bone stabilizing rod, wherein said distal opening is formed within a hoop structure connected to the upper arm and separated from said lower arm by a notch.
37. The subcombination of claim 36, wherein said lower arm further comprises an end connector adapted for interconnection to a bone screw.
38. In subcombination, a deformable connector for use with a stabilizing rod clamp, the deformable connector securing a portion of a substantially cylindrical member within a cavity in the stabilizing rod clamp, the deformable connector comprising:
(a) a disc having a passageway adapted to receive the substantially cylindrical member;
(b) a groove along an exterior surface of said disc and extending to said passageway; wherein said disc is compressible to secure the substantially cylindrical member within said passageway upon application of a compressing force to said disc.
39. The subcombination of claim 38, wherein at least a portion of said disc comprises a skeletonized structure.
40. The subcombination of claim 38, wherein at least a portion of said disc has a truncated exterior surface.
41. The subcombination of claim 38, wherein said disc comprises an indentation along a portion of said exterior surface.
42. A connector device for a bone screw, comprising: a clamp including an upper section and a lower section separated by a slot, said upper section including a first aperture and said lower section including a second aperture substantially aligned with said first aperture, said first and second apertures sized to accommodate a shank ofthe bone screw; and a tightening member operatively connected to said upper section and said lower section, wherein upon advancing said tightening member, said tightening member reduces the size of said slot between said upper section and said lower section, thereby securing the shank ofthe bone screw within the device.
43. The device as claimed in Claim 42, wherein said tightening member is a screw or a bolt.
44. The device as claimed in Claim 42, wherein said clamp is substantially C- shaped.
45. The device as claimed in Claim 42, further comprising a beam interconnected to said clamp.
46. A bone stabilization assembly for securing a first bone segment to a second bone segment, comprising: first bone screw attachable to the first bone segment and a second bone screw attachable to the second bone segment; a first rod member including a beam and an end connector, said end connector attachable to said first bone screw; a second rod member including an interior hollow chamber for longitudinally receiving at least a portion of said beam, said second rod member including an upper arm and an opposing lower arm, said upper ann and said lower arm spaced apart by a slot wherein said slot is contiguous with said interior hollow chamber, and wherein said upper arm is moveable to contact said beam and compress said beam between said upper arm and said lower arm, said second rod member including a connector attachable to said second bone screw; means for tightening said second rod member to secure said beam within said second rod member.
47. The bone stabilization assembly of claim 46, wherein said means for tightening forces said connector of said second rod member to secure said second rod member to said second bone screw.
48. The bone stabilization assembly of claim 46, wherein said connector of said second rod member comprises a socket.
49. The bone stabilization assembly of claim 46, wherein said connector of said second rod member comprises a deformable connector.
50. The bone stabilization assembly of claim 49, wherein said deformable connector is disc-shaped.
51. A method of interconnecting a first vertebra to a second vertebra, the method comprising the steps of:
(a) attaching a first pedicle screw to the first vertebra and a second pedicle screw to the second vertebra;
(b) inserting a beam of a first rod member into a second rod member, the second rod member including an interior hollow chamber for longitudinally receiving at least a portion ofthe beam, the second rod member including an upper arm and an opposing lower arm, the upper arm and the lower arm spaced apart by a slot wherein the slot is contiguous with the interior hollow chamber, wherein the upper arm is moveable to contact the beam and compress the beam between the upper ann and the lower arm, and wherein the second rod member includes an integral connector for attaching the second rod member to the second pedicle screw;
(c) connecting the first rod member to the first pedicle screw using a connector interconnected to the beam; and
(d) advancing a single tightening mechanism to secure:
(i) the second rod member to the beam ofthe first rod member, and (ii) the second rod member to the second pedicle screw.
52. The method as claimed in claim 51, wherein the tightening mechanism is a tightening screw in the second rod member.
53. The method as claimed in claim 51, wherein the tightening mechanism is a tension link nut threaded onto a tension link shaft.
PCT/US2004/005751 2003-02-25 2004-02-25 Adjustable rod and connector device and method of use WO2004075778A2 (en)

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CA2516791A CA2516791C (en) 2003-02-25 2004-02-25 Adjustable rod and connector device and method of use
EP04714674A EP1596738A4 (en) 2003-02-25 2004-02-25 Adjustable rod and connector device and method of use
JP2006503886A JP4598760B2 (en) 2003-02-25 2004-02-25 ADJUSTING ROD AND CONNECTOR DEVICE, AND ITS USING METHOD
AU2004216131A AU2004216131B2 (en) 2003-02-25 2004-02-25 Adjustable rod and connector device and method of use

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Cited By (41)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008545488A (en) * 2005-06-01 2008-12-18 オルトヴィヴァ アーベー Prosthesis positioning device and system
KR101413732B1 (en) * 2007-02-23 2014-07-01 비이더만 테크놀로지스 게엠베하 & 코. 카게 Stabilization device for stabilizing bones of a vertebra and rod connector used therefor
US8926670B2 (en) 2003-06-18 2015-01-06 Roger P. Jackson Polyaxial bone screw assembly
US9050148B2 (en) 2004-02-27 2015-06-09 Roger P. Jackson Spinal fixation tool attachment structure
US9050139B2 (en) 2004-02-27 2015-06-09 Roger P. Jackson Orthopedic implant rod reduction tool set and method
WO2016166663A1 (en) * 2015-04-17 2016-10-20 Apifix Ltd. Expandable polyaxial spinal system
US9480517B2 (en) 2009-06-15 2016-11-01 Roger P. Jackson Polyaxial bone anchor with pop-on shank, shank, friction fit retainer, winged insert and low profile edge lock
US9622790B2 (en) 2001-09-19 2017-04-18 Warsaw Orthopedic, Inc. Rod extension for extending fusion construct
US9629669B2 (en) 2004-11-23 2017-04-25 Roger P. Jackson Spinal fixation tool set and method
US9662143B2 (en) 2004-02-27 2017-05-30 Roger P Jackson Dynamic fixation assemblies with inner core and outer coil-like member
US9662151B2 (en) 2004-02-27 2017-05-30 Roger P Jackson Orthopedic implant rod reduction tool set and method
US9668771B2 (en) 2009-06-15 2017-06-06 Roger P Jackson Soft stabilization assemblies with off-set connector
USRE46431E1 (en) 2003-06-18 2017-06-13 Roger P Jackson Polyaxial bone anchor with helical capture connection, insert and dual locking assembly
US9717533B2 (en) 2013-12-12 2017-08-01 Roger P. Jackson Bone anchor closure pivot-splay control flange form guide and advancement structure
US9717534B2 (en) 2009-06-15 2017-08-01 Roger P. Jackson Polyaxial bone anchor with pop-on shank and friction fit retainer with low profile edge lock
US9743957B2 (en) 2004-11-10 2017-08-29 Roger P. Jackson Polyaxial bone screw with shank articulation pressure insert and method
US9770265B2 (en) 2012-11-21 2017-09-26 Roger P. Jackson Splay control closure for open bone anchor
US9907574B2 (en) 2008-08-01 2018-03-06 Roger P. Jackson Polyaxial bone anchors with pop-on shank, friction fit fully restrained retainer, insert and tool receiving features
US9918744B2 (en) 2002-05-08 2018-03-20 Stephen Ritland Dynamic fixation device and method of use
US9918751B2 (en) 2004-02-27 2018-03-20 Roger P. Jackson Tool system for dynamic spinal implants
US9980753B2 (en) 2009-06-15 2018-05-29 Roger P Jackson pivotal anchor with snap-in-place insert having rotation blocking extensions
US10039577B2 (en) 2004-11-23 2018-08-07 Roger P Jackson Bone anchor receiver with horizontal radiused tool attachment structures and parallel planar outer surfaces
US10039578B2 (en) 2003-12-16 2018-08-07 DePuy Synthes Products, Inc. Methods and devices for minimally invasive spinal fixation element placement
US10058354B2 (en) 2013-01-28 2018-08-28 Roger P. Jackson Pivotal bone anchor assembly with frictional shank head seating surfaces
US10064658B2 (en) 2014-06-04 2018-09-04 Roger P. Jackson Polyaxial bone anchor with insert guides
US10194951B2 (en) 2005-05-10 2019-02-05 Roger P. Jackson Polyaxial bone anchor with compound articulation and pop-on shank
US10258382B2 (en) 2007-01-18 2019-04-16 Roger P. Jackson Rod-cord dynamic connection assemblies with slidable bone anchor attachment members along the cord
US10299839B2 (en) 2003-12-16 2019-05-28 Medos International Sárl Percutaneous access devices and bone anchor assemblies
US10349983B2 (en) 2003-05-22 2019-07-16 Alphatec Spine, Inc. Pivotal bone anchor assembly with biased bushing for pre-lock friction fit
US10363070B2 (en) 2009-06-15 2019-07-30 Roger P. Jackson Pivotal bone anchor assemblies with pressure inserts and snap on articulating retainers
USRE47551E1 (en) 2005-02-22 2019-08-06 Roger P. Jackson Polyaxial bone screw with spherical capture, compression insert and alignment and retention structures
US10383660B2 (en) 2007-05-01 2019-08-20 Roger P. Jackson Soft stabilization assemblies with pretensioned cords
US10470801B2 (en) 2007-01-18 2019-11-12 Roger P. Jackson Dynamic spinal stabilization with rod-cord longitudinal connecting members
US10729469B2 (en) 2006-01-09 2020-08-04 Roger P. Jackson Flexible spinal stabilization assembly with spacer having off-axis core member
US10952777B2 (en) 2003-04-09 2021-03-23 Roger P. Jackson Pivotal bone screw assembly with receiver having threaded open channel and lower opening
US11147591B2 (en) 2004-11-10 2021-10-19 Roger P Jackson Pivotal bone anchor receiver assembly with threaded closure
US11147597B2 (en) 2004-02-27 2021-10-19 Roger P Jackson Dynamic spinal stabilization assemblies, tool set and method
US11229457B2 (en) 2009-06-15 2022-01-25 Roger P. Jackson Pivotal bone anchor assembly with insert tool deployment
US11234745B2 (en) 2005-07-14 2022-02-01 Roger P. Jackson Polyaxial bone screw assembly with partially spherical screw head and twist in place pressure insert
US11419642B2 (en) 2003-12-16 2022-08-23 Medos International Sarl Percutaneous access devices and bone anchor assemblies
US11547450B2 (en) 2015-04-17 2023-01-10 Apifix Ltd. Expandable polyaxial spinal system

Families Citing this family (206)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1294295A4 (en) 2000-06-30 2009-12-23 Stephen Ritland Polyaxial connection device and method
FR2812185B1 (en) * 2000-07-25 2003-02-28 Spine Next Sa SEMI-RIGID CONNECTION PIECE FOR RACHIS STABILIZATION
FR2812186B1 (en) * 2000-07-25 2003-02-28 Spine Next Sa FLEXIBLE CONNECTION PIECE FOR SPINAL STABILIZATION
US7166073B2 (en) 2000-09-29 2007-01-23 Stephen Ritland Method and device for microsurgical intermuscular spinal surgery
US8377100B2 (en) 2000-12-08 2013-02-19 Roger P. Jackson Closure for open-headed medical implant
US6726689B2 (en) 2002-09-06 2004-04-27 Roger P. Jackson Helical interlocking mating guide and advancement structure
US8353932B2 (en) * 2005-09-30 2013-01-15 Jackson Roger P Polyaxial bone anchor assembly with one-piece closure, pressure insert and plastic elongate member
US8292926B2 (en) * 2005-09-30 2012-10-23 Jackson Roger P Dynamic stabilization connecting member with elastic core and outer sleeve
CA2460183C (en) * 2001-09-28 2011-04-12 Stephen Ritland Connection rod for screw or hook polyaxial system and method of use
US20040006342A1 (en) * 2002-02-13 2004-01-08 Moti Altarac Posterior polyaxial plate system for the spine
WO2003073908A2 (en) 2002-02-20 2003-09-12 Stephen Ritland Pedicle screw connector apparatus and method
FR2838041B1 (en) * 2002-04-04 2004-07-02 Kiscomedica SPINAL OSTEOSYNTHESIS SYSTEM
US6966910B2 (en) 2002-04-05 2005-11-22 Stephen Ritland Dynamic fixation device and method of use
US8257402B2 (en) 2002-09-06 2012-09-04 Jackson Roger P Closure for rod receiving orthopedic implant having left handed thread removal
WO2006052796A2 (en) 2004-11-10 2006-05-18 Jackson Roger P Helical guide and advancement flange with break-off extensions
US8282673B2 (en) 2002-09-06 2012-10-09 Jackson Roger P Anti-splay medical implant closure with multi-surface removal aperture
US8876868B2 (en) 2002-09-06 2014-11-04 Roger P. Jackson Helical guide and advancement flange with radially loaded lip
US7811312B2 (en) 2002-12-04 2010-10-12 Morphographics, Lc Bone alignment implant and method of use
CA2516791C (en) 2003-02-25 2011-12-13 Stephen Ritland Adjustable rod and connector device and method of use
US6716214B1 (en) 2003-06-18 2004-04-06 Roger P. Jackson Polyaxial bone screw with spline capture connection
US20050182400A1 (en) * 2003-05-02 2005-08-18 Jeffrey White Spine stabilization systems, devices and methods
US7615068B2 (en) * 2003-05-02 2009-11-10 Applied Spine Technologies, Inc. Mounting mechanisms for pedicle screws and related assemblies
US20050182401A1 (en) * 2003-05-02 2005-08-18 Timm Jens P. Systems and methods for spine stabilization including a dynamic junction
WO2004110247A2 (en) 2003-05-22 2004-12-23 Stephen Ritland Intermuscular guide for retractor insertion and method of use
US8377102B2 (en) 2003-06-18 2013-02-19 Roger P. Jackson Polyaxial bone anchor with spline capture connection and lower pressure insert
US8257398B2 (en) 2003-06-18 2012-09-04 Jackson Roger P Polyaxial bone screw with cam capture
US8092500B2 (en) * 2007-05-01 2012-01-10 Jackson Roger P Dynamic stabilization connecting member with floating core, compression spacer and over-mold
US8137386B2 (en) 2003-08-28 2012-03-20 Jackson Roger P Polyaxial bone screw apparatus
US8398682B2 (en) 2003-06-18 2013-03-19 Roger P. Jackson Polyaxial bone screw assembly
US7785351B2 (en) 2003-08-05 2010-08-31 Flexuspine, Inc. Artificial functional spinal implant unit system and method for use
US7753958B2 (en) 2003-08-05 2010-07-13 Gordon Charles R Expandable intervertebral implant
US7909869B2 (en) 2003-08-05 2011-03-22 Flexuspine, Inc. Artificial spinal unit assemblies
US7618442B2 (en) 2003-10-21 2009-11-17 Theken Spine, Llc Implant assembly and method for use in an internal structure stabilization system
US7967826B2 (en) 2003-10-21 2011-06-28 Theken Spine, Llc Connector transfer tool for internal structure stabilization systems
US8419770B2 (en) 2003-12-10 2013-04-16 Gmedelaware 2 Llc Spinal facet implants with mating articulating bearing surface and methods of use
US8029548B2 (en) 2008-05-05 2011-10-04 Warsaw Orthopedic, Inc. Flexible spinal stabilization element and system
US8333789B2 (en) 2007-01-10 2012-12-18 Gmedelaware 2 Llc Facet joint replacement
US8562649B2 (en) 2004-02-17 2013-10-22 Gmedelaware 2 Llc System and method for multiple level facet joint arthroplasty and fusion
US7214227B2 (en) * 2004-03-22 2007-05-08 Innovative Spinal Technologies Closure member for a medical implant device
FR2870718B1 (en) * 2004-05-25 2006-09-22 Spine Next Sa TREATMENT ASSEMBLY FOR THE DEGENERATION OF AN INTERVERTEBRAL DISC
US7588578B2 (en) 2004-06-02 2009-09-15 Facet Solutions, Inc Surgical measurement systems and methods
CN101090675A (en) * 2004-06-23 2007-12-19 应用脊柱外科技术公司 Systems and methods for spine stabilization
WO2006020530A2 (en) * 2004-08-09 2006-02-23 Innovative Spinal Technologies System and method for dynamic skeletal stabilization
US7854752B2 (en) 2004-08-09 2010-12-21 Theken Spine, Llc System and method for dynamic skeletal stabilization
US7959653B2 (en) 2004-09-03 2011-06-14 Lanx, Inc. Spinal rod cross connector
US7455639B2 (en) * 2004-09-20 2008-11-25 Stephen Ritland Opposing parallel bladed retractor and method of use
US7651502B2 (en) 2004-09-24 2010-01-26 Jackson Roger P Spinal fixation tool set and method for rod reduction and fastener insertion
US8162985B2 (en) 2004-10-20 2012-04-24 The Board Of Trustees Of The Leland Stanford Junior University Systems and methods for posterior dynamic stabilization of the spine
US8025680B2 (en) 2004-10-20 2011-09-27 Exactech, Inc. Systems and methods for posterior dynamic stabilization of the spine
US20100036423A1 (en) * 2004-10-20 2010-02-11 Stanley Kyle Hayes Dynamic rod
US7935134B2 (en) 2004-10-20 2011-05-03 Exactech, Inc. Systems and methods for stabilization of bone structures
US8926672B2 (en) 2004-11-10 2015-01-06 Roger P. Jackson Splay control closure for open bone anchor
US20060206114A1 (en) * 2004-11-19 2006-09-14 Alphaspine, Inc. Rod coupling assemblies
US9216041B2 (en) 2009-06-15 2015-12-22 Roger P. Jackson Spinal connecting members with tensioned cords and rigid sleeves for engaging compression inserts
US9168069B2 (en) 2009-06-15 2015-10-27 Roger P. Jackson Polyaxial bone anchor with pop-on shank and winged insert with lower skirt for engaging a friction fit retainer
US7875065B2 (en) 2004-11-23 2011-01-25 Jackson Roger P Polyaxial bone screw with multi-part shank retainer and pressure insert
US8308782B2 (en) 2004-11-23 2012-11-13 Jackson Roger P Bone anchors with longitudinal connecting member engaging inserts and closures for fixation and optional angulation
US8444681B2 (en) 2009-06-15 2013-05-21 Roger P. Jackson Polyaxial bone anchor with pop-on shank, friction fit retainer and winged insert
ATE524121T1 (en) 2004-11-24 2011-09-15 Abdou Samy DEVICES FOR PLACING AN ORTHOPEDIC INTERVERTEBRAL IMPLANT
US7901437B2 (en) 2007-01-26 2011-03-08 Jackson Roger P Dynamic stabilization member with molded connection
US8105368B2 (en) * 2005-09-30 2012-01-31 Jackson Roger P Dynamic stabilization connecting member with slitted core and outer sleeve
AU2013200038B2 (en) * 2005-10-06 2015-03-05 Orthofix S.R.L. Bone alignment implant and method of use
US20070093834A1 (en) * 2005-10-06 2007-04-26 Stevens Peter M Bone alignment implant and method of use
FR2894129B1 (en) * 2005-12-07 2008-08-22 Alain Tornier DEVICE FOR STABILIZING THE RACHIS
US7704271B2 (en) * 2005-12-19 2010-04-27 Abdou M Samy Devices and methods for inter-vertebral orthopedic device placement
US20080294198A1 (en) * 2006-01-09 2008-11-27 Jackson Roger P Dynamic spinal stabilization assembly with torsion and shear control
US7722652B2 (en) 2006-01-27 2010-05-25 Warsaw Orthopedic, Inc. Pivoting joints for spinal implants including designed resistance to motion and methods of use
US8057519B2 (en) * 2006-01-27 2011-11-15 Warsaw Orthopedic, Inc. Multi-axial screw assembly
US7833252B2 (en) * 2006-01-27 2010-11-16 Warsaw Orthopedic, Inc. Pivoting joints for spinal implants including designed resistance to motion and methods of use
US7682376B2 (en) * 2006-01-27 2010-03-23 Warsaw Orthopedic, Inc. Interspinous devices and methods of use
US7815663B2 (en) * 2006-01-27 2010-10-19 Warsaw Orthopedic, Inc. Vertebral rods and methods of use
US7578849B2 (en) * 2006-01-27 2009-08-25 Warsaw Orthopedic, Inc. Intervertebral implants and methods of use
US8118869B2 (en) * 2006-03-08 2012-02-21 Flexuspine, Inc. Dynamic interbody device
US8025681B2 (en) 2006-03-29 2011-09-27 Theken Spine, Llc Dynamic motion spinal stabilization system
EP2012686B1 (en) * 2006-04-18 2013-10-02 Joseph Nicholas Logan Spinal rod system
US20070288012A1 (en) * 2006-04-21 2007-12-13 Dennis Colleran Dynamic motion spinal stabilization system and device
US7785350B2 (en) * 2006-05-08 2010-08-31 Warsaw Orthopedic, Inc. Load bearing flexible spinal connecting element
US20080058808A1 (en) * 2006-06-14 2008-03-06 Spartek Medical, Inc. Implant system and method to treat degenerative disorders of the spine
US7959564B2 (en) * 2006-07-08 2011-06-14 Stephen Ritland Pedicle seeker and retractor, and methods of use
US20090012563A1 (en) * 2006-10-11 2009-01-08 Nas Medical Technologies, Inc. Spinal fixation devices and methods
US20080147122A1 (en) * 2006-10-12 2008-06-19 Jackson Roger P Dynamic stabilization connecting member with molded inner segment and surrounding external elastomer
EP2120749B1 (en) 2006-12-07 2020-05-20 AlpineSpine LLC Press-on pedicle screw assembly
US8366745B2 (en) 2007-05-01 2013-02-05 Jackson Roger P Dynamic stabilization assembly having pre-compressed spacers with differential displacements
US8597358B2 (en) 2007-01-19 2013-12-03 Flexuspine, Inc. Dynamic interbody devices
US10792074B2 (en) 2007-01-22 2020-10-06 Roger P. Jackson Pivotal bone anchor assemly with twist-in-place friction fit insert
US8034081B2 (en) 2007-02-06 2011-10-11 CollabComl, LLC Interspinous dynamic stabilization implant and method of implanting
WO2008098206A1 (en) * 2007-02-09 2008-08-14 Altiva Corporation Dynamic stabilization device
US8308801B2 (en) * 2007-02-12 2012-11-13 Brigham Young University Spinal implant
US8012177B2 (en) 2007-02-12 2011-09-06 Jackson Roger P Dynamic stabilization assembly with frusto-conical connection
US7988691B2 (en) * 2007-02-13 2011-08-02 Depuy Products, Inc. Orthopaedic trauma bone plate kit
WO2008112831A1 (en) * 2007-03-12 2008-09-18 Arya Nick Shamie Improved cervical support system
US7951173B2 (en) 2007-05-16 2011-05-31 Ortho Innovations, Llc Pedicle screw implant system
US7947065B2 (en) 2008-11-14 2011-05-24 Ortho Innovations, Llc Locking polyaxial ball and socket fastener
US7942910B2 (en) 2007-05-16 2011-05-17 Ortho Innovations, Llc Polyaxial bone screw
US7942911B2 (en) 2007-05-16 2011-05-17 Ortho Innovations, Llc Polyaxial bone screw
US7942909B2 (en) 2009-08-13 2011-05-17 Ortho Innovations, Llc Thread-thru polyaxial pedicle screw system
US8197518B2 (en) 2007-05-16 2012-06-12 Ortho Innovations, Llc Thread-thru polyaxial pedicle screw system
US7947066B2 (en) * 2007-05-22 2011-05-24 K2M, Inc. Universal transverse connector device
WO2008153827A1 (en) * 2007-05-31 2008-12-18 Jackson Roger P Dynamic stabilization connecting member with pre-tensioned solid core
US8083772B2 (en) * 2007-06-05 2011-12-27 Spartek Medical, Inc. Dynamic spinal rod assembly and method for dynamic stabilization of the spine
US8021396B2 (en) 2007-06-05 2011-09-20 Spartek Medical, Inc. Configurable dynamic spinal rod and method for dynamic stabilization of the spine
US8048115B2 (en) * 2007-06-05 2011-11-01 Spartek Medical, Inc. Surgical tool and method for implantation of a dynamic bone anchor
US7963978B2 (en) 2007-06-05 2011-06-21 Spartek Medical, Inc. Method for implanting a deflection rod system and customizing the deflection rod system for a particular patient need for dynamic stabilization and motion preservation spinal implantation system
US8114134B2 (en) 2007-06-05 2012-02-14 Spartek Medical, Inc. Spinal prosthesis having a three bar linkage for motion preservation and dynamic stabilization of the spine
US8177815B2 (en) 2007-06-05 2012-05-15 Spartek Medical, Inc. Super-elastic deflection rod for a dynamic stabilization and motion preservation spinal implantation system and method
WO2008151096A1 (en) 2007-06-05 2008-12-11 Spartek Medical, Inc. A deflection rod system for a dynamic stabilization and motion preservation spinal implantation system and method
US8298267B2 (en) 2007-06-05 2012-10-30 Spartek Medical, Inc. Spine implant with a deflection rod system including a deflection limiting shield associated with a bone screw and method
US8092501B2 (en) * 2007-06-05 2012-01-10 Spartek Medical, Inc. Dynamic spinal rod and method for dynamic stabilization of the spine
US8313515B2 (en) 2007-06-15 2012-11-20 Rachiotek, Llc Multi-level spinal stabilization system
US20080312694A1 (en) * 2007-06-15 2008-12-18 Peterman Marc M Dynamic stabilization rod for spinal implants and methods for manufacturing the same
US8709054B2 (en) 2007-08-07 2014-04-29 Transcorp, Inc. Implantable vertebral frame systems and related methods for spinal repair
US8430882B2 (en) * 2007-09-13 2013-04-30 Transcorp, Inc. Transcorporeal spinal decompression and repair systems and related methods
US8323320B2 (en) * 2007-09-13 2012-12-04 Transcorp, Inc. Transcorporeal spinal decompression and repair system and related method
US20090093843A1 (en) * 2007-10-05 2009-04-09 Lemoine Jeremy J Dynamic spine stabilization system
US8187330B2 (en) 2007-10-22 2012-05-29 Flexuspine, Inc. Dampener system for a posterior stabilization system with a variable length elongated member
US8157844B2 (en) 2007-10-22 2012-04-17 Flexuspine, Inc. Dampener system for a posterior stabilization system with a variable length elongated member
US8182514B2 (en) 2007-10-22 2012-05-22 Flexuspine, Inc. Dampener system for a posterior stabilization system with a fixed length elongated member
US8523912B2 (en) 2007-10-22 2013-09-03 Flexuspine, Inc. Posterior stabilization systems with shared, dual dampener systems
US8267965B2 (en) 2007-10-22 2012-09-18 Flexuspine, Inc. Spinal stabilization systems with dynamic interbody devices
US8162994B2 (en) 2007-10-22 2012-04-24 Flexuspine, Inc. Posterior stabilization system with isolated, dual dampener systems
US8911477B2 (en) 2007-10-23 2014-12-16 Roger P. Jackson Dynamic stabilization member with end plate support and cable core extension
US20090105764A1 (en) * 2007-10-23 2009-04-23 Jackson Roger P Dynamic stabilization member with fin support and solid core extension
US20160074074A1 (en) * 2014-09-12 2016-03-17 Nexus Spine, LLC PressOn Pedicle Screw Variations
WO2009100429A1 (en) * 2008-02-07 2009-08-13 K2M, Inc. Automatic lengthening bone fixation device
US8057515B2 (en) 2008-02-26 2011-11-15 Spartek Medical, Inc. Load-sharing anchor having a deflectable post and centering spring and method for dynamic stabilization of the spine
US8097024B2 (en) 2008-02-26 2012-01-17 Spartek Medical, Inc. Load-sharing bone anchor having a deflectable post and method for stabilization of the spine
US8337536B2 (en) 2008-02-26 2012-12-25 Spartek Medical, Inc. Load-sharing bone anchor having a deflectable post with a compliant ring and method for stabilization of the spine
US8211155B2 (en) * 2008-02-26 2012-07-03 Spartek Medical, Inc. Load-sharing bone anchor having a durable compliant member and method for dynamic stabilization of the spine
US8007518B2 (en) * 2008-02-26 2011-08-30 Spartek Medical, Inc. Load-sharing component having a deflectable post and method for dynamic stabilization of the spine
US8083775B2 (en) * 2008-02-26 2011-12-27 Spartek Medical, Inc. Load-sharing bone anchor having a natural center of rotation and method for dynamic stabilization of the spine
US8267979B2 (en) * 2008-02-26 2012-09-18 Spartek Medical, Inc. Load-sharing bone anchor having a deflectable post and axial spring and method for dynamic stabilization of the spine
US20100036437A1 (en) * 2008-02-26 2010-02-11 Spartek Medical, Inc. Load-sharing bone anchor having a deflectable post with a compliant ring and method for stabilization of the spine
US8016861B2 (en) 2008-02-26 2011-09-13 Spartek Medical, Inc. Versatile polyaxial connector assembly and method for dynamic stabilization of the spine
US8333792B2 (en) * 2008-02-26 2012-12-18 Spartek Medical, Inc. Load-sharing bone anchor having a deflectable post and method for dynamic stabilization of the spine
US20100015456A1 (en) 2008-07-16 2010-01-21 Eastman Chemical Company Thermoplastic formulations for enhanced paintability toughness and melt process ability
US20100031518A1 (en) * 2008-08-11 2010-02-11 Fedor John A Hand held power saw apparatus and method
US20100042157A1 (en) * 2008-08-15 2010-02-18 Warsaw Orthopedic, Inc. Vertebral rod system and methods of use
US20100094344A1 (en) * 2008-10-14 2010-04-15 Kyphon Sarl Pedicle-Based Posterior Stabilization Members and Methods of Use
DE202009018581U1 (en) 2008-11-03 2012-03-02 Synthes Gmbh Adjustable bar arrangement
US20100114165A1 (en) * 2008-11-04 2010-05-06 Abbott Spine, Inc. Posterior dynamic stabilization system with pivoting collars
US20100160968A1 (en) * 2008-12-19 2010-06-24 Abbott Spine Inc. Systems and methods for pedicle screw-based spine stabilization using flexible bands
WO2010096621A2 (en) * 2009-02-19 2010-08-26 Bowden Anton E Compliant dynamic spinal implant
WO2010094250A1 (en) * 2009-02-19 2010-08-26 Ulrich Gmbh & Co. Kg Device for stabilizing the spinal column
US8162984B2 (en) * 2009-02-20 2012-04-24 K2M, Inc. Forced growth axial growing spine device
WO2010096829A2 (en) 2009-02-23 2010-08-26 Crocker Spinal, L.L.C. Press-on link for surgical screws
US8998961B1 (en) 2009-02-26 2015-04-07 Lanx, Inc. Spinal rod connector and methods
US8091305B2 (en) * 2009-02-27 2012-01-10 Skeeter Jane A Recycled glass structural and decorative barrier or building, lighting and furniture component
US8118840B2 (en) 2009-02-27 2012-02-21 Warsaw Orthopedic, Inc. Vertebral rod and related method of manufacture
WO2010108010A2 (en) * 2009-03-19 2010-09-23 Halverson Peter A Spinal implant
KR100935233B1 (en) * 2009-06-08 2010-01-06 주식회사 지에스메디칼 Length-adjustable rod for spinal fixation
US8998959B2 (en) 2009-06-15 2015-04-07 Roger P Jackson Polyaxial bone anchors with pop-on shank, fully constrained friction fit retainer and lock and release insert
US9011494B2 (en) * 2009-09-24 2015-04-21 Warsaw Orthopedic, Inc. Composite vertebral rod system and methods of use
CA2774471A1 (en) * 2009-10-05 2011-04-14 James L. Surber Polyaxial bone anchor with non-pivotable retainer and pop-on shank, some with friction fit
US9157497B1 (en) 2009-10-30 2015-10-13 Brigham Young University Lamina emergent torsional joint and related methods
US20110118783A1 (en) * 2009-11-16 2011-05-19 Spartek Medical, Inc. Load-sharing bone anchor having a flexible post and method for dynamic stabilization of the spine
EP2506785A4 (en) 2009-12-02 2014-10-15 Spartek Medical Inc Low profile spinal prosthesis incorporating a bone anchor having a deflectable post and a compound spinal rod
US8764806B2 (en) 2009-12-07 2014-07-01 Samy Abdou Devices and methods for minimally invasive spinal stabilization and instrumentation
US9050138B2 (en) 2010-01-28 2015-06-09 Warsaw Orthopedic, Inc. Vertebral rod connector and methods of use
US20110218574A1 (en) * 2010-03-03 2011-09-08 Warsaw Orthopedic, Inc. Dynamic vertebral construct
US8617216B2 (en) * 2010-04-05 2013-12-31 David L. Brumfield Fully-adjustable bone fixation device
US8425569B2 (en) * 2010-05-19 2013-04-23 Transcorp, Inc. Implantable vertebral frame systems and related methods for spinal repair
WO2011153536A1 (en) * 2010-06-04 2011-12-08 Spartan Cage, Llc. Expandable intervertebral implant
US8518085B2 (en) 2010-06-10 2013-08-27 Spartek Medical, Inc. Adaptive spinal rod and methods for stabilization of the spine
US8920471B2 (en) 2010-07-12 2014-12-30 K2M, Inc. Transverse connector
EP2611373B1 (en) 2010-08-30 2015-11-04 Zimmer Spine, Inc. Polyaxial pedicle screw
BR112013005465A2 (en) 2010-09-08 2019-09-24 P Jackson Roger connecting element in a medical implant assembly having at least two bone attachment structures cooperating with a dynamic longitudinal connecting element
US9358122B2 (en) 2011-01-07 2016-06-07 K2M, Inc. Interbody spacer
US8388687B2 (en) 2011-03-25 2013-03-05 Flexuspine, Inc. Interbody device insertion systems and methods
EP2517660B1 (en) 2011-04-25 2018-03-07 Nexus Spine, L.L.C. Coupling system to connect two or more surgical screws
EP2717807A2 (en) 2011-06-07 2014-04-16 Brigham Young University Serpentine spinal stability device and associated methods
US9186187B2 (en) * 2011-07-15 2015-11-17 Globus Medical, Inc. Orthopedic fixation devices and methods of installation thereof
US8845728B1 (en) 2011-09-23 2014-09-30 Samy Abdou Spinal fixation devices and methods of use
US9526627B2 (en) 2011-11-17 2016-12-27 Exactech, Inc. Expandable interbody device system and method
WO2013106217A1 (en) 2012-01-10 2013-07-18 Jackson, Roger, P. Multi-start closures for open implants
US8430916B1 (en) 2012-02-07 2013-04-30 Spartek Medical, Inc. Spinal rod connectors, methods of use, and spinal prosthesis incorporating spinal rod connectors
US20130226240A1 (en) 2012-02-22 2013-08-29 Samy Abdou Spinous process fixation devices and methods of use
US9198767B2 (en) 2012-08-28 2015-12-01 Samy Abdou Devices and methods for spinal stabilization and instrumentation
US20140088647A1 (en) * 2012-09-21 2014-03-27 Atlas Spine, Inc. Minimally invasive spine surgery instruments: spinal rod with flange
US9320617B2 (en) 2012-10-22 2016-04-26 Cogent Spine, LLC Devices and methods for spinal stabilization and instrumentation
US8865261B2 (en) 2012-12-06 2014-10-21 Eastman Chemical Company Extrusion coating of elongated substrates
EP2742883B1 (en) * 2012-12-12 2016-07-27 Stryker European Holdings I, LLC Surgical distance adjusting assembly for a bone distractor
US8852239B2 (en) 2013-02-15 2014-10-07 Roger P Jackson Sagittal angle screw with integral shank and receiver
US9492288B2 (en) 2013-02-20 2016-11-15 Flexuspine, Inc. Expandable fusion device for positioning between adjacent vertebral bodies
US9744707B2 (en) 2013-10-18 2017-08-29 Eastman Chemical Company Extrusion-coated structural members having extruded profile members
US9920526B2 (en) * 2013-10-18 2018-03-20 Eastman Chemical Company Coated structural members having improved resistance to cracking
US9566092B2 (en) 2013-10-29 2017-02-14 Roger P. Jackson Cervical bone anchor with collet retainer and outer locking sleeve
US10438511B2 (en) * 2013-11-11 2019-10-08 K2M, Inc. Growing spine model
US9451993B2 (en) 2014-01-09 2016-09-27 Roger P. Jackson Bi-radial pop-on cervical bone anchor
US9517144B2 (en) 2014-04-24 2016-12-13 Exactech, Inc. Limited profile intervertebral implant with incorporated fastening mechanism
US10398565B2 (en) 2014-04-24 2019-09-03 Choice Spine, Llc Limited profile intervertebral implant with incorporated fastening and locking mechanism
US9597119B2 (en) 2014-06-04 2017-03-21 Roger P. Jackson Polyaxial bone anchor with polymer sleeve
US9642651B2 (en) 2014-06-12 2017-05-09 Brigham Young University Inverted serpentine spinal stability device and associated methods
CA2917676A1 (en) 2015-01-13 2016-07-13 Stryker European Holdings I, Llc Growing rods and methods of use
WO2016201292A1 (en) * 2015-06-11 2016-12-15 Larson Jeffrey John Spine-anchored targeting systems and methods for posterior spinal surgery
US10857003B1 (en) 2015-10-14 2020-12-08 Samy Abdou Devices and methods for vertebral stabilization
US10543022B2 (en) 2016-10-11 2020-01-28 Warsaw Orthopedic, Inc. Spinal implant system and method
US10973648B1 (en) 2016-10-25 2021-04-13 Samy Abdou Devices and methods for vertebral bone realignment
US10744000B1 (en) 2016-10-25 2020-08-18 Samy Abdou Devices and methods for vertebral bone realignment
CN108606859A (en) * 2016-12-12 2018-10-02 创生医疗器械(中国)有限公司 A kind of locking lumbar fusion cages
US11446064B2 (en) 2018-04-26 2022-09-20 Stryker European Operations Holdings Llc Orthopedic growing devices
US11179248B2 (en) 2018-10-02 2021-11-23 Samy Abdou Devices and methods for spinal implantation
US11116550B2 (en) 2019-04-26 2021-09-14 Warsaw Orthopedic, Inc. Spinal implant system and method
US11076891B2 (en) * 2019-06-23 2021-08-03 Premia Spine Ltd. Bi-directional motion spinal implant
JP7407273B2 (en) * 2020-04-03 2023-12-28 京セラ株式会社 Spinal surgery instruments and systems
US11284924B1 (en) 2020-12-16 2022-03-29 Warsaw Orthopedic, Inc Adjustable spinal implant, system and method
US11350969B1 (en) 2021-02-02 2022-06-07 Warsaw Orthopedic, Inc. Rotatable spinal implant, system, and method

Family Cites Families (339)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2191A (en) * 1841-07-23 Constructing the surgical instrument denominated the
US605652A (en) * 1898-06-14 Endoscopic instrument
US569839A (en) 1896-10-20 John t
US1090746A (en) * 1913-04-26 1914-03-17 Frank P Nourse Speculum.
US1097978A (en) * 1913-06-14 1914-05-26 Hardwick Jackson J Combined dilator and catheter.
US2611434A (en) * 1948-01-12 1952-09-23 Charles M Mugler Coring or perforating device
US3470872A (en) 1966-11-25 1969-10-07 Herman R Grieshaber Pivoted retractor with shielded spacer teeth
US3467079A (en) * 1967-04-14 1969-09-16 David Charles James Gall bladder and common duct retractor
GB1444547A (en) * 1972-11-16 1976-08-04 Accles Shelvoke Ltd Devices for use in the humane slaughterin of animals
SE375908B (en) * 1973-12-04 1975-05-05 Stille Werner Ab
US3875595A (en) 1974-04-15 1975-04-08 Edward C Froning Intervertebral disc prosthesis and instruments for locating same
GB1551706A (en) 1975-04-28 1979-08-30 Downs Surgical Ltd Surgical implant
US4232660A (en) 1979-03-26 1980-11-11 Coles Robert L Winged irrigating surgical retractor
US4481947A (en) 1980-02-14 1984-11-13 Chester Martin H Endotracheal tube retractor
US4440168A (en) 1981-08-31 1984-04-03 Warren Mark G Surgical device
US4447622A (en) * 1981-09-22 1984-05-08 Council Of Scientific And Industrial Research Rafi Marg Preparation of l- and d-isomers of dl-3,4-trans-2,2-disubstituted-3,4-diarylchromans and derivatives thereof
US4617922A (en) 1982-01-18 1986-10-21 Richards Medical Company Compression screw assembly
US4545374A (en) 1982-09-03 1985-10-08 Jacobson Robert E Method and instruments for performing a percutaneous lumbar diskectomy
US4573448A (en) 1983-10-05 1986-03-04 Pilling Co. Method for decompressing herniated intervertebral discs
US4736738A (en) 1984-07-09 1988-04-12 Matej Lipovsek Instrument kit and procedure for performing posterior lumbar interbody fusion
CH671873A5 (en) 1985-10-03 1989-10-13 Synthes Ag
US4743260A (en) 1985-06-10 1988-05-10 Burton Charles V Method for a flexible stabilization system for a vertebral column
US4620460A (en) 1985-07-01 1986-11-04 Gonzales Jr Frank Socket set
DE3614101C1 (en) * 1986-04-25 1987-10-22 Juergen Prof Dr Med Harms Pedicle screw
US4686972A (en) 1986-04-30 1987-08-18 Kurland Kenneth Z Surgical deflector and drilling guide
US4747394A (en) 1986-10-08 1988-05-31 Watanabe Orthopedic Systems, Inc. Spinal retractor
US4889112A (en) * 1987-01-23 1989-12-26 Waltap Ltd. Apparatus for performing a tracheostomy operation
US4798111A (en) 1987-08-03 1989-01-17 Cheeseman Charles D Socket-wrench hand tool
US4817587A (en) 1987-08-31 1989-04-04 Janese Woodrow W Ring para-spinal retractor
GB2209673B (en) 1987-09-15 1991-06-12 Wallace Ltd H G Catheter and cannula assembly
DE3736066C1 (en) 1987-10-24 1988-11-10 Aesculap Werke Ag Retractor
US4862891A (en) 1988-03-14 1989-09-05 Canyon Medical Products Device for sequential percutaneous dilation
US4995875A (en) * 1988-05-27 1991-02-26 Cecil Coes Femoral elevating tool
DE8807485U1 (en) 1988-06-06 1989-08-10 Mecron Medizinische Produkte Gmbh, 1000 Berlin, De
US6123705A (en) 1988-06-13 2000-09-26 Sdgi Holdings, Inc. Interbody spinal fusion implants
AU7139994A (en) 1988-06-13 1995-01-03 Karlin Technology, Inc. Apparatus and method of inserting spinal implants
US5593409A (en) 1988-06-13 1997-01-14 Sofamor Danek Group, Inc. Interbody spinal fusion implants
US5052373A (en) 1988-07-29 1991-10-01 Michelson Gary K Spinal retractor
US4961740B1 (en) 1988-10-17 1997-01-14 Surgical Dynamics Inc V-thread fusion cage and method of fusing a bone joint
US4882958A (en) 1988-12-05 1989-11-28 Mcneeley Richard L Stacking socket wrench set
JPH063551Y2 (en) * 1989-01-17 1994-02-02 旭光学工業株式会社 Bone plate
US5024213A (en) * 1989-02-08 1991-06-18 Acromed Corporation Connector for a corrective device
DE3918431C1 (en) 1989-06-06 1990-07-26 B. Braun Melsungen Ag, 3508 Melsungen, De
US5048379A (en) 1989-06-16 1991-09-17 Gramera Robert E Multi-functional double-ended socket wrenches
US5030223A (en) * 1989-06-30 1991-07-09 Iowa State University Research Foundation, Inc. Head mounted stereotaxic apparatus
US5458638A (en) 1989-07-06 1995-10-17 Spine-Tech, Inc. Non-threaded spinal implant
DE3922406C1 (en) 1989-07-07 1990-10-11 B. Braun Melsungen Ag, 3508 Melsungen, De
US5276567A (en) * 1989-10-25 1994-01-04 Tuner Company Limited Tape player
US5002542A (en) * 1989-10-30 1991-03-26 Synthes U.S.A. Pedicle screw clamp
US5055104A (en) 1989-11-06 1991-10-08 Surgical Dynamics, Inc. Surgically implanting threaded fusion cages between adjacent low-back vertebrae by an anterior approach
US5084043A (en) 1990-01-12 1992-01-28 Laserscope Method for performing a percutaneous diskectomy using a laser
US5018507A (en) * 1990-01-26 1991-05-28 Montaldi David H One-piece disposable speculum
US5030220A (en) 1990-03-29 1991-07-09 Advanced Spine Fixation Systems Incorporated Spine fixation system
US5360431A (en) 1990-04-26 1994-11-01 Cross Medical Products Transpedicular screw system and method of use
DE9004960U1 (en) * 1990-05-02 1991-08-29 Pfeil, Joachim, Dr.Med.
US5133720A (en) 1990-07-13 1992-07-28 Greenberg Alex M Surgical drill guide and retractor
US5129900B1 (en) * 1990-07-24 1998-12-29 Acromed Corp Spinal column retaining method and apparatus
US6224608B1 (en) 1990-08-10 2001-05-01 United States Surgical Corporation Tissue holding device and method
FR2666981B1 (en) * 1990-09-21 1993-06-25 Commarmond Jacques SYNTHETIC LIGAMENT VERTEBRAL.
US5165306A (en) * 1990-10-04 1992-11-24 Maclean-Fogg Company Vehicle stabilizer bar end link
US5158543A (en) 1990-10-30 1992-10-27 Lazarus Harrison M Laparoscopic surgical system and method
CA2096651A1 (en) 1990-11-20 1992-05-21 Robert S. Behl Tension guide and dilator
US5098435A (en) 1990-11-21 1992-03-24 Alphatec Manufacturing Inc. Cannula
FR2672202B1 (en) * 1991-02-05 1993-07-30 Safir BONE SURGICAL IMPLANT, ESPECIALLY FOR INTERVERTEBRAL STABILIZER.
US5129899A (en) * 1991-03-27 1992-07-14 Smith & Nephew Richards Inc. Bone fixation apparatus
US5217007A (en) * 1991-04-26 1993-06-08 Cook Incorporated Speculum for forming an ostomy in a trachea
GB9110778D0 (en) 1991-05-18 1991-07-10 Middleton Jeffrey K Apparatus for use in surgery
US5148724A (en) 1991-06-13 1992-09-22 Rexford Gary R Ratchet wrench and socket apparatus
US5269797A (en) 1991-09-12 1993-12-14 Meditron Devices, Inc. Cervical discectomy instruments
US5330474A (en) * 1991-09-23 1994-07-19 Lin Chih I Vertebral locking and retrieving system
US5489274A (en) 1992-10-09 1996-02-06 Boston Scientific Corporation Rotatable medical valve closure
US5195541A (en) 1991-10-18 1993-03-23 Obenchain Theodore G Method of performing laparoscopic lumbar discectomy
FR2683712B1 (en) * 1991-11-18 1995-12-29 Hades PROTECTIVE CAP FOR AN OSTEOSYNTHESIS SPINDLE AND ASSEMBLY COMPRISING THIS CAP AS WELL AS AN ORGAN FOR FIXING IT TO THE SPINDLE.
US5766221A (en) 1991-12-03 1998-06-16 Boston Scientific Technology, Inc. Bone anchor implantation device
DE9202745U1 (en) * 1992-03-02 1992-04-30 Howmedica Gmbh, 2314 Schoenkirchen, De
US5306309A (en) 1992-05-04 1994-04-26 Calcitek, Inc. Spinal disk implant and implantation kit
FR2691069B1 (en) 1992-05-14 1999-08-20 Vygon SURGICAL INSTRUMENT FOR PERIDURAL ANESTHESIA OPERATION.
US5250055A (en) 1992-06-08 1993-10-05 Orthopedic Systems Inc. Method and apparatus for tying suture to bone
US5810817A (en) * 1992-06-19 1998-09-22 Roussouly; Pierre Spinal therapy apparatus
JP3308271B2 (en) * 1992-06-25 2002-07-29 ジンテーズ アクチエンゲゼルシャフト,クール Osteosynthesis fixation device
US5279567A (en) 1992-07-02 1994-01-18 Conmed Corporation Trocar and tube with pressure signal
US5312405A (en) * 1992-07-06 1994-05-17 Zimmer, Inc. Spinal rod coupler
US5275600A (en) * 1992-10-05 1994-01-04 Zimmer, Inc. Telescoping rod to rod coupler for a spinal system
ZA937672B (en) * 1992-10-22 1994-05-16 Danek Medical Inc Spinal rod transverse connector for supporting vertebral fixation elements
US5484440A (en) * 1992-11-03 1996-01-16 Zimmer, Inc. Bone screw and screwdriver
EP0599640B1 (en) * 1992-11-25 1998-08-26 CODMAN & SHURTLEFF INC. Osteosynthesis plate system
US5306275A (en) * 1992-12-31 1994-04-26 Bryan Donald W Lumbar spine fixation apparatus and method
US5498262A (en) * 1992-12-31 1996-03-12 Bryan; Donald W. Spinal fixation apparatus and method
US5947965A (en) * 1992-12-31 1999-09-07 Bryan; Donald W. Spinal fixation apparatus and method
US5292309A (en) 1993-01-22 1994-03-08 Schneider (Usa) Inc. Surgical depth measuring instrument and method
US5431651A (en) 1993-02-08 1995-07-11 Goble; E. Marlowe Cross pin and set screw femoral and tibial fixation method
US5303694A (en) 1993-02-09 1994-04-19 Mikhail Michael W E Method for performing hip surgery and retractor for use therein
FR2701650B1 (en) * 1993-02-17 1995-05-24 Psi Double shock absorber for intervertebral stabilization.
US5330473A (en) * 1993-03-04 1994-07-19 Advanced Spine Fixation Systems, Inc. Branch connector for spinal fixation systems
US5439464A (en) 1993-03-09 1995-08-08 Shapiro Partners Limited Method and instruments for performing arthroscopic spinal surgery
US5356413A (en) 1993-03-12 1994-10-18 Mitek Surgical Products, Inc. Surgical anchor and method for deploying the same
US5415661A (en) 1993-03-24 1995-05-16 University Of Miami Implantable spinal assist device
US5565502A (en) 1993-03-24 1996-10-15 Children's Medical Center Corporation Isolation of the calcium-phosphate crystals of bone
US5304179A (en) * 1993-06-17 1994-04-19 Amei Technologies Inc. System and method for installing a spinal fixation system at variable angles
US5363841A (en) 1993-07-02 1994-11-15 Coker Wesley L Retractor for spinal surgery
US5584831A (en) * 1993-07-09 1996-12-17 September 28, Inc. Spinal fixation device and method
US5423816A (en) * 1993-07-29 1995-06-13 Lin; Chih I. Intervertebral locking device
FR2708461B1 (en) 1993-08-06 1995-09-29 Advanced Technical Fabrication Interbody implant for spine.
US5431639A (en) 1993-08-12 1995-07-11 Boston Scientific Corporation Treating wounds caused by medical procedures
US5466238A (en) * 1993-08-27 1995-11-14 Lin; Chih-I Vertebral locking and retrieving system having a fixation crossbar
CN1156255C (en) 1993-10-01 2004-07-07 美商-艾克罗米德公司 Spinal implant
US5484445A (en) * 1993-10-12 1996-01-16 Medtronic, Inc. Sacral lead anchoring system
US5512038A (en) 1993-11-15 1996-04-30 O'neal; Darrell D. Spinal retractor apparatus having a curved blade
JPH07163580A (en) * 1993-12-15 1995-06-27 Mizuho Ika Kogyo Kk Forward correcting device for scoliosis
US5628740A (en) * 1993-12-23 1997-05-13 Mullane; Thomas S. Articulating toggle bolt bone screw
US5499983A (en) * 1994-02-23 1996-03-19 Smith & Nephew Richards, Inc. Variable angle spinal screw
USD361381S (en) 1994-03-17 1995-08-15 Tibor Koros Combined spine and sternum retractor frame
FR2718944B1 (en) * 1994-04-20 1996-08-30 Pierre Roussouly Orthopedic anchoring stabilization device.
FR2718945B1 (en) * 1994-04-25 1996-07-05 Soprane Sa Device for retaining a connecting rod of a spine fixator on a pedicle screw.
US6162236A (en) 1994-07-11 2000-12-19 Terumo Kabushiki Kaisha Trocar needle and expandable trocar tube
US5545166A (en) * 1994-07-14 1996-08-13 Advanced Spine Fixation Systems, Incorporated Spinal segmental reduction derotational fixation system
FR2722980B1 (en) 1994-07-26 1996-09-27 Samani Jacques INTERTEPINOUS VERTEBRAL IMPLANT
US5695993A (en) * 1994-08-12 1997-12-09 Oklahoma Medical Research Foundation Cloning and regulation of an endothelial cell protein C/activated protein C receptor
JP2802244B2 (en) 1994-08-29 1998-09-24 オリンパス光学工業株式会社 Endoscope sheath
US5558622A (en) 1994-09-02 1996-09-24 Greenberg Surgical Technologies, Llc Mandibular border retractor and method for fixating a fractured mandible
US5885299A (en) 1994-09-15 1999-03-23 Surgical Dynamics, Inc. Apparatus and method for implant insertion
EP0781113B1 (en) 1994-09-15 2002-03-27 Surgical Dynamics, Inc. Conically-shaped anterior fusion cage
US6004322A (en) * 1994-10-25 1999-12-21 Sdgi Holdings, Inc. Modular pedicle screw system
US6176861B1 (en) * 1994-10-25 2001-01-23 Sdgi Holdings, Inc. Modular spinal system
US5601550A (en) 1994-10-25 1997-02-11 Esser; Rene D. Pelvic pin guide system for insertion of pins into iliac bone
WO1996018363A1 (en) * 1994-12-08 1996-06-20 Vanderbilt University Low profile intraosseous anterior spinal fusion system and method
ES2124988T3 (en) * 1995-02-17 1999-02-16 Sulzer Orthopadie Ag CONNECTION SYSTEM FOR PEDICULAR SCREWS.
FR2731344B1 (en) * 1995-03-06 1997-08-22 Dimso Sa SPINAL INSTRUMENTATION ESPECIALLY FOR A ROD
US5591235A (en) 1995-03-15 1997-01-07 Kuslich; Stephen D. Spinal fixation device
US6206922B1 (en) 1995-03-27 2001-03-27 Sdgi Holdings, Inc. Methods and instruments for interbody fusion
US6245072B1 (en) 1995-03-27 2001-06-12 Sdgi Holdings, Inc. Methods and instruments for interbody fusion
US5591166A (en) * 1995-03-27 1997-01-07 Smith & Nephew Richards, Inc. Multi angle bone bolt
SE504379C2 (en) * 1995-04-10 1997-01-27 Sven Olerud Locking device for fixing two intersecting rod-shaped implants for position adjustment of vertebrae
US5716355A (en) * 1995-04-10 1998-02-10 Sofamor Danek Group, Inc. Transverse connection for spinal rods
US5569300A (en) * 1995-04-12 1996-10-29 Redmon; Henry A. Dilating surgical forceps having illumination means on blade inner surface
US5613968A (en) * 1995-05-01 1997-03-25 Lin; Chih-I Universal pad fixation device for orthopedic surgery
US5562663A (en) * 1995-06-07 1996-10-08 Danek Medical, Inc. Implant interconnection mechanism
US5643263A (en) 1995-08-14 1997-07-01 Simonson; Peter Melott Spinal implant connection assembly
US5645544A (en) * 1995-09-13 1997-07-08 Danek Medical, Inc. Variable angle extension rod
US5643264A (en) * 1995-09-13 1997-07-01 Danek Medical, Inc. Iliac screw
CA2158890C (en) * 1995-09-22 2002-01-22 John Runciman Spherical washer for use with a bone screw
US6273914B1 (en) * 1995-09-28 2001-08-14 Sparta, Inc. Spinal implant
US5683392A (en) * 1995-10-17 1997-11-04 Wright Medical Technology, Inc. Multi-planar locking mechanism for bone fixation
US5882344A (en) 1995-10-18 1999-03-16 Stouder, Jr.; Albert E. Adjustable length cannula and trocar
US5746720A (en) 1995-10-18 1998-05-05 Stouder, Jr.; Albert E. Method and apparatus for insertion of a cannula and trocar
US5690632A (en) * 1995-11-30 1997-11-25 Schwartz; Paul Steven Osteosynthesis screw fastener having angularly adjustable threads and methods of use therefor
EP0865258B1 (en) * 1995-12-01 2000-06-21 David A. Walker Telescopic bone plate for use in bone lengthening by distraction osteogenesis
US5687739A (en) 1995-12-06 1997-11-18 Interventional Concepts, Inc. Biopsy specimen cutter
US6425901B1 (en) * 1995-12-07 2002-07-30 Loma Linda University Medical Center Vascular wound closure system
US5816257A (en) 1995-12-20 1998-10-06 Origin Medsystems, Inc. Gasless retroperitoneal surgical procedure
CA2240656C (en) * 1995-12-22 2002-09-03 Ohio Medical Instrument Company, Inc. Spinal fixation device with laterally attachable connectors
US5766253A (en) 1996-01-16 1998-06-16 Surgical Dynamics, Inc. Spinal fusion device
CA2199462C (en) 1996-03-14 2006-01-03 Charles J. Winslow Method and instrumentation for implant insertion
WO1997034536A2 (en) 1996-03-22 1997-09-25 Sdgi Holdings, Inc. Devices and methods for percutaneous surgery
US6679833B2 (en) 1996-03-22 2004-01-20 Sdgi Holdings, Inc. Devices and methods for percutaneous surgery
US5792044A (en) 1996-03-22 1998-08-11 Danek Medical, Inc. Devices and methods for percutaneous surgery
JP3819962B2 (en) 1996-04-01 2006-09-13 ペンタックス株式会社 Interbody fusion implant guide device
US5785712A (en) * 1996-04-16 1998-07-28 Terray Corporation Reconstruction bone plate
US5746741A (en) * 1996-05-06 1998-05-05 Tufts University External fixator system
DE69735146T2 (en) 1996-05-09 2006-09-28 Olympus Corporation Surgical tool for holding a cavity
JP2960688B2 (en) * 1996-06-07 1999-10-12 株式会社ロバート・リード商会 Bone fixation screw
US5741261A (en) 1996-06-25 1998-04-21 Sdgi Holdings, Inc. Minimally invasive spinal surgical methods and instruments
US5702455A (en) 1996-07-03 1997-12-30 Saggar; Rahul Expandable prosthesis for spinal fusion
FR2751202B1 (en) 1996-07-22 2001-03-16 Zacouto Fred SKELETAL IMPLANT
FR2751864B1 (en) * 1996-08-01 1999-04-30 Graf Henry DEVICE FOR MECHANICALLY CONNECTING AND ASSISTING VERTEBRES BETWEEN THEM
US5743853A (en) 1996-09-09 1998-04-28 Lauderdale; Robert A. Serrated S-retractor
US5741266A (en) 1996-09-19 1998-04-21 Biomet, Inc. Pin placement guide and method of making a bone entry hole for implantation of an intramedullary nail
US5782832A (en) 1996-10-01 1998-07-21 Surgical Dynamics, Inc. Spinal fusion implant and method of insertion thereof
US5735851A (en) * 1996-10-09 1998-04-07 Third Millennium Engineering, Llc Modular polyaxial locking pedicle screw
US5725528A (en) * 1997-02-12 1998-03-10 Third Millennium Engineering, Llc Modular polyaxial locking pedicle screw
US5785648A (en) * 1996-10-09 1998-07-28 David Min, M.D., Inc. Speculum
US5800435A (en) * 1996-10-09 1998-09-01 Techsys, Llc Modular spinal plate for use with modular polyaxial locking pedicle screws
US6063088A (en) 1997-03-24 2000-05-16 United States Surgical Corporation Method and instrumentation for implant insertion
US5968098A (en) 1996-10-22 1999-10-19 Surgical Dynamics, Inc. Apparatus for fusing adjacent bone structures
TW375522B (en) 1996-10-24 1999-12-01 Danek Medical Inc Devices for percutaneous surgery under direct visualization and through an elongated cannula
US6416515B1 (en) * 1996-10-24 2002-07-09 Spinal Concepts, Inc. Spinal fixation system
US6190414B1 (en) 1996-10-31 2001-02-20 Surgical Dynamics Inc. Apparatus for fusion of adjacent bone structures
FR2755844B1 (en) 1996-11-15 1999-01-29 Stryker France Sa OSTEOSYNTHESIS SYSTEM WITH ELASTIC DEFORMATION FOR SPINE
US5827328A (en) 1996-11-22 1998-10-27 Buttermann; Glenn R. Intervertebral prosthetic device
US6068630A (en) 1997-01-02 2000-05-30 St. Francis Medical Technologies, Inc. Spine distraction implant
US6156038A (en) 1997-01-02 2000-12-05 St. Francis Medical Technologies, Inc. Spine distraction implant and method
US5860977A (en) 1997-01-02 1999-01-19 Saint Francis Medical Technologies, Llc Spine distraction implant and method
US5836948A (en) 1997-01-02 1998-11-17 Saint Francis Medical Technologies, Llc Spine distraction implant and method
US5931838A (en) * 1997-01-28 1999-08-03 Vito; Raymond P. Fixation assembly for orthopedic applications
US5752957A (en) * 1997-02-12 1998-05-19 Third Millennium Engineering, Llc Polyaxial mechanism for use with orthopaedic implant devices
US6120506A (en) 1997-03-06 2000-09-19 Sulzer Spine-Tech Inc. Lordotic spinal implant
FR2761256B1 (en) * 1997-04-01 1999-06-11 Daniel Chopin RACHIDIAN OSTEOSYNTHESIS INSTRUMENTATION WITH CONNECTING CONNECTOR BETWEEN A VERTEBRAL ROD AND BONE ANCHORING ORGANS
FR2761590B1 (en) * 1997-04-04 1999-08-20 Stryker France Sa DEVICE FOR OSTEOSYNTHESIS OF THE RACHIS WITH ATTACHMENT OF DEAXED INTERVERTEBRAL ROD
US5772582A (en) * 1997-04-08 1998-06-30 Bionix Development Corp. Nasal speculum
US6045579A (en) 1997-05-01 2000-04-04 Spinal Concepts, Inc. Adjustable height fusion device
US5810819A (en) * 1997-05-15 1998-09-22 Spinal Concepts, Inc. Polyaxial pedicle screw having a compression locking rod gripping mechanism
US5913818A (en) 1997-06-02 1999-06-22 General Surgical Innovations, Inc. Vascular retractor
IES77331B2 (en) * 1997-06-03 1997-12-03 Tecos Holdings Inc Pluridirectional and modulable vertebral osteosynthesis device of small overall size
US5971920A (en) 1997-06-18 1999-10-26 Nagel; Gunther Peter Surgical retractor
US5851207A (en) 1997-07-01 1998-12-22 Synthes (U.S.A.) Freely separable surgical drill guide and plate
US5976146A (en) 1997-07-11 1999-11-02 Olympus Optical Co., Ltd. Surgical operation system and method of securing working space for surgical operation in body
US6290700B1 (en) 1997-07-31 2001-09-18 Plus Endoprothetik Ag Device for stiffening and/or correcting a vertebral column or such like
US5865848A (en) 1997-09-12 1999-02-02 Artifex, Ltd. Dynamic intervertebral spacer and method of use
US5891018A (en) * 1997-09-19 1999-04-06 Genzyme Corporation Ball joint retractor
US5944658A (en) 1997-09-23 1999-08-31 Koros; Tibor B. Lumbar spinal fusion retractor and distractor system
FR2768609B1 (en) 1997-09-23 2000-01-14 Dimso Sa SCREW AND PLATE SYSTEM FOR OSTEOSYNTHESIS OF THE RACHIS
US5967970A (en) 1997-09-26 1999-10-19 Cowan; Michael A. System and method for balloon-assisted retraction tube
JP3342021B2 (en) 1997-10-17 2002-11-05 サーコン コーポレーション Medical device system that penetrates tissue
WO1999021501A1 (en) 1997-10-27 1999-05-06 Saint Francis Medical Technologies, Llc Spine distraction implant
USD399955S (en) 1997-11-14 1998-10-20 Koros Tibor B Combined spine/sternum retractor frame and blades
CN1284023A (en) 1997-11-28 2001-02-14 有限会社三佳电设工业 Working tool
US5996447A (en) 1997-12-08 1999-12-07 Bayouth; David Sink wrench
FR2771918B1 (en) 1997-12-09 2000-04-21 Dimso Sa CONNECTOR FOR SPINAL OSTEOSYNTHESIS DEVICE
US6197002B1 (en) 1997-12-10 2001-03-06 Phillips Plastics Corporation Laparoscopic tool and method
US6348058B1 (en) 1997-12-12 2002-02-19 Surgical Navigation Technologies, Inc. Image guided spinal surgery guide, system, and method for use thereof
DE69721278T2 (en) * 1997-12-17 2004-02-05 Robert Lange Apparatus for stabilizing certain vertebrae of the spine
US6206826B1 (en) 1997-12-18 2001-03-27 Sdgi Holdings, Inc. Devices and methods for percutaneous surgery
US5976135A (en) * 1997-12-18 1999-11-02 Sdgi Holdings, Inc. Lateral connector assembly
EP0933065A1 (en) * 1998-02-02 1999-08-04 Sulzer Orthopädie AG Pivotable attachment system for a bone screw
FR2774581B1 (en) 1998-02-10 2000-08-11 Dimso Sa INTEREPINOUS STABILIZER TO BE ATTACHED TO SPINOUS APOPHYSIS OF TWO VERTEBRES
US6179838B1 (en) * 1998-02-24 2001-01-30 Daniel Fiz Bone fixation arrangements and method
US5895352A (en) 1998-03-17 1999-04-20 Kleiner; Jeffrey B. Surgical retractor
US6224631B1 (en) 1998-03-20 2001-05-01 Sulzer Spine-Tech Inc. Intervertebral implant with reduced contact area and method
DE19818765A1 (en) * 1998-04-07 1999-10-14 Schaefer Micomed Gmbh Synthetic bone device for fixing bone fractures
US6241729B1 (en) 1998-04-09 2001-06-05 Sdgi Holdings, Inc. Method and instrumentation for posterior interbody fusion
US6206885B1 (en) 1998-04-14 2001-03-27 Fathali Ghahremani Catheter guide and drill guide apparatus and method for perpendicular insertion into a cranium orifice
US5954671A (en) 1998-04-20 1999-09-21 O'neill; Michael J. Bone harvesting method and apparatus
US6083226A (en) 1998-04-22 2000-07-04 Fiz; Daniel Bone fixation device and transverse linking bridge
US5928139A (en) 1998-04-24 1999-07-27 Koros; Tibor B. Retractor with adjustable length blades and light pipe guides
ES2155427T3 (en) * 1998-04-29 2003-07-01 Dimso Sa RAQUIDEA OSTEOSYNTHESIS SYSTEM WITH TIGHTENING MEDIA, IN PARTICULAR FOR PREVIOUS FIXATION.
US6010520A (en) 1998-05-01 2000-01-04 Pattison; C. Phillip Double tapered esophageal dilator
US6081741A (en) 1998-06-05 2000-06-27 Vector Medical, Inc. Infrared surgical site locating device and method
US6214004B1 (en) 1998-06-09 2001-04-10 Wesley L. Coker Vertebral triplaner alignment facilitator
FR2780631B1 (en) * 1998-07-06 2000-09-29 Dimso Sa SPINAL OSTEOSYNTHESIS DEVICE FOR ANTERIOR FIXATION WITH PLATE
US6264658B1 (en) * 1998-07-06 2001-07-24 Solco Surgical Instruments Co., Ltd. Spine fixing apparatus
US6361541B1 (en) * 1998-07-17 2002-03-26 The University Of Iowa Research Foundation Surgical instrument for extracting tissue ingrowth from a permeable member of an implanted catheter
US6017342A (en) 1998-08-05 2000-01-25 Beere Precision Medical Instrumnets, Inc. Compression and distraction instrument
US6530926B1 (en) 2000-08-01 2003-03-11 Endius Incorporated Method of securing vertebrae
WO2000010642A1 (en) 1998-08-20 2000-03-02 Vaughan Thomas F Portal acquisition tool
US6231575B1 (en) * 1998-08-27 2001-05-15 Martin H. Krag Spinal column retainer
EP1109502B1 (en) * 1998-09-11 2006-03-15 Synthes AG Chur Variable angle spinal fixation system
US6117174A (en) 1998-09-16 2000-09-12 Nolan; Wesley A. Spinal implant device
US6355038B1 (en) * 1998-09-25 2002-03-12 Perumala Corporation Multi-axis internal spinal fixation
US5984924A (en) * 1998-10-07 1999-11-16 Isola Implants, Inc. Bone alignment system having variable orientation bone anchors
US6174311B1 (en) 1998-10-28 2001-01-16 Sdgi Holdings, Inc. Interbody fusion grafts and instrumentation
CA2344891C (en) 1998-10-30 2008-01-08 Gary Karlin Michelson Self-broaching, rotatable, push-in interbody fusion implant and method for deployment thereof
US6206923B1 (en) 1999-01-08 2001-03-27 Sdgi Holdings, Inc. Flexible implant using partially demineralized bone
USD433296S (en) 1999-01-11 2000-11-07 Sangadensetsukogyo Co., Ltd. Socket for manual tool
USD436513S1 (en) 1999-01-11 2001-01-23 Sangadensetsukogyo Co., Ltd. Socket for screwdriver
US6050997A (en) * 1999-01-25 2000-04-18 Mullane; Thomas S. Spinal fixation system
FR2789886B1 (en) * 1999-02-18 2001-07-06 Dimso Sa DISTRACTION / CONTRACTION DEVICE FOR A SPINAL OSTEOSYNTHESIS SYSTEM
US6368350B1 (en) 1999-03-11 2002-04-09 Sulzer Spine-Tech Inc. Intervertebral disc prosthesis and method
US6159179A (en) 1999-03-12 2000-12-12 Simonson; Robert E. Cannula and sizing and insertion method
US6113602A (en) 1999-03-26 2000-09-05 Sulzer Spine-Tech Inc. Posterior spinal instrument guide and method
DE19914232B4 (en) 1999-03-29 2012-08-30 Signus Medizintechnik Gmbh Device for stabilizing vertebral bodies of a spinal column
EP1164954B1 (en) * 1999-03-30 2006-12-06 Howmedica Osteonics Corp. Apparatus for spinal stabilization
US6267763B1 (en) 1999-03-31 2001-07-31 Surgical Dynamics, Inc. Method and apparatus for spinal implant insertion
EP1164955A1 (en) 1999-04-05 2002-01-02 Surgical Dynamics, Inc. Artificial spinal ligament
JP2000287915A (en) 1999-04-08 2000-10-17 Machida Endscope Co Ltd Guide tube device for surgery
US6210413B1 (en) * 1999-04-23 2001-04-03 Sdgi Holdings, Inc. Connecting apparatus using shape-memory technology
US6196696B1 (en) 1999-05-07 2001-03-06 Hsuan-Sen Shiao Driving tool with illuminating capability
US6196969B1 (en) 1999-05-21 2001-03-06 Lab Engineering & Manufacturing, Inc. Tissue retractor adapted for the attachment of an auxiliary element
US6283966B1 (en) 1999-07-07 2001-09-04 Sulzer Spine-Tech Inc. Spinal surgery tools and positioning method
FR2796546B1 (en) * 1999-07-23 2001-11-30 Eurosurgical POLYAXIAL CONNECTOR FOR SPINAL IMPLANT
FR2796828B1 (en) * 1999-07-27 2001-10-19 Dev Sed Soc Et IMPLANTABLE INTERVERTEBRAL CONNECTION DEVICE
USD438074S1 (en) 1999-09-24 2001-02-27 Donald E Marr Tap socket
US6461359B1 (en) * 1999-11-10 2002-10-08 Clifford Tribus Spine stabilization device
US6287313B1 (en) 1999-11-23 2001-09-11 Sdgi Holdings, Inc. Screw delivery system and method
FR2804314B1 (en) * 2000-01-27 2003-01-31 Scientx INTERVERTEBRAL CONNECTION DEVICE WITH A CONNECTION BAR FOR FIXING A CONNECTING ROD
US6443953B1 (en) * 2000-02-08 2002-09-03 Cross Medical Products, Inc. Self-aligning cap nut for use with a spinal rod anchor
US6610062B2 (en) * 2000-02-16 2003-08-26 Ebi, L.P. Method and system for spinal fixation
US6248106B1 (en) 2000-02-25 2001-06-19 Bret Ferree Cross-coupled vertebral stabilizers
US6293949B1 (en) 2000-03-01 2001-09-25 Sdgi Holdings, Inc. Superelastic spinal stabilization system and method
US6312432B1 (en) 2000-03-02 2001-11-06 Nemco Medical, Inc. Bone drill
US6309391B1 (en) * 2000-03-15 2001-10-30 Sdgi Holding, Inc. Multidirectional pivoting bone screw and fixation system
US6371959B1 (en) 2000-04-05 2002-04-16 Michael E. Trice Radiolucent position locating device and drill guide
US6395033B1 (en) 2000-04-10 2002-05-28 Tyco Healthcare Group Lp Dynamic fusion mechanostat devices
US6296609B1 (en) 2000-04-14 2001-10-02 Salvador A. Brau Surgical retractor and related surgical approach to access the anterior lumbar region
US6671725B1 (en) * 2000-04-18 2003-12-30 International Business Machines Corporation Server cluster interconnection using network processor
US6342057B1 (en) 2000-04-28 2002-01-29 Synthes (Usa) Remotely aligned surgical drill guide
US6851430B2 (en) 2000-05-01 2005-02-08 Paul M. Tsou Method and apparatus for endoscopic spinal surgery
JP2002000611A (en) * 2000-05-12 2002-01-08 Sulzer Orthopedics Ltd Bone screw to be joined with the bone plate
US6258097B1 (en) 2000-06-02 2001-07-10 Bristol-Myers Squibb Co Head center instrument and method of using the same
US20020011135A1 (en) 2000-06-19 2002-01-31 Wayne Hall Reversible socket wrench set
US6749614B2 (en) 2000-06-23 2004-06-15 Vertelink Corporation Formable orthopedic fixation system with cross linking
EP1294295A4 (en) 2000-06-30 2009-12-23 Stephen Ritland Polyaxial connection device and method
FR2812185B1 (en) 2000-07-25 2003-02-28 Spine Next Sa SEMI-RIGID CONNECTION PIECE FOR RACHIS STABILIZATION
US6428472B1 (en) 2000-08-08 2002-08-06 Kent Haas Surgical retractor having a malleable support
US20020029082A1 (en) 2000-08-29 2002-03-07 Muhanna Nabil L. Vertebral spacer and method of use
US6554831B1 (en) * 2000-09-01 2003-04-29 Hopital Sainte-Justine Mobile dynamic system for treating spinal disorder
US6692434B2 (en) 2000-09-29 2004-02-17 Stephen Ritland Method and device for retractor for microsurgical intermuscular lumbar arthrodesis
US20020058948A1 (en) 2000-10-12 2002-05-16 Yvan Arlettaz Targeting system and method for distal locking of intramedullary nails
US6626906B1 (en) * 2000-10-23 2003-09-30 Sdgi Holdings, Inc. Multi-planar adjustable connector
US6685705B1 (en) * 2000-10-23 2004-02-03 Sdgi Holdings, Inc. Six-axis and seven-axis adjustable connector
US6551320B2 (en) 2000-11-08 2003-04-22 The Cleveland Clinic Foundation Method and apparatus for correcting spinal deformity
US6354176B1 (en) 2000-11-10 2002-03-12 Greenlee Textron, Inc. Universal deep socket and adapter
US6443989B1 (en) 2000-12-04 2002-09-03 Roger P. Jackson Posterior expandable fusion cage
US6440170B1 (en) 2000-12-04 2002-08-27 Roger P. Jackson Threaded interbody device
US6743257B2 (en) * 2000-12-19 2004-06-01 Cortek, Inc. Dynamic implanted intervertebral spacer
US6524238B2 (en) 2000-12-20 2003-02-25 Synthes Usa Universal handle and method for use
DE10065232C2 (en) 2000-12-27 2002-11-14 Ulrich Gmbh & Co Kg Implant for insertion between the vertebral body and surgical instrument for handling the implant
US6302842B1 (en) * 2001-01-11 2001-10-16 Innovative Surgical Design Llc Episiotomy retractor
FR2819711B1 (en) * 2001-01-23 2003-08-01 Stryker Spine Sa POSITION ADJUSTMENT SYSTEM FOR A SPINAL SURGERY INSTRUMENT
EP1355578A1 (en) 2001-01-29 2003-10-29 Stephen Ritland Retractor and method for spinal pedicle screw placement
US6929606B2 (en) 2001-01-29 2005-08-16 Depuy Spine, Inc. Retractor and method for spinal pedicle screw placement
US6562073B2 (en) 2001-02-06 2003-05-13 Sdgi Holding, Inc. Spinal bone implant
US6576017B2 (en) 2001-02-06 2003-06-10 Sdgi Holdings, Inc. Spinal implant with attached ligament and methods
US6602253B2 (en) 2001-02-12 2003-08-05 Marc Richelsoph Rod to rod connector
US7229441B2 (en) 2001-02-28 2007-06-12 Warsaw Orthopedic, Inc. Flexible systems for spinal stabilization and fixation
US6368351B1 (en) 2001-03-27 2002-04-09 Bradley J. Glenn Intervertebral space implant for use in spinal fusion procedures
US6530880B2 (en) 2001-03-29 2003-03-11 Endius Incorporated Apparatus for supporting an endoscope
US6974480B2 (en) * 2001-05-03 2005-12-13 Synthes (Usa) Intervertebral implant for transforaminal posterior lumbar interbody fusion procedure
US6478798B1 (en) * 2001-05-17 2002-11-12 Robert S. Howland Spinal fixation apparatus and methods for use
US6579292B2 (en) * 2001-06-18 2003-06-17 Sdgi Holdings, Inc. Connection assembly for spinal implant systems
JP4755781B2 (en) * 2001-08-01 2011-08-24 昭和医科工業株式会社 Jointing member for osteosynthesis
USD466766S1 (en) 2001-08-08 2002-12-10 Masco Corporation Of Indiana Wrench
US20030045874A1 (en) 2001-08-31 2003-03-06 Thomas James C. Transverse connector assembly for spine fixation system
CA2460183C (en) * 2001-09-28 2011-04-12 Stephen Ritland Connection rod for screw or hook polyaxial system and method of use
US7008431B2 (en) 2001-10-30 2006-03-07 Depuy Spine, Inc. Configured and sized cannula
US6916330B2 (en) 2001-10-30 2005-07-12 Depuy Spine, Inc. Non cannulated dilators
US20030139812A1 (en) * 2001-11-09 2003-07-24 Javier Garcia Spinal implant
US6648887B2 (en) * 2002-01-23 2003-11-18 Richard B. Ashman Variable angle spinal implant connection assembly
WO2003073908A2 (en) 2002-02-20 2003-09-12 Stephen Ritland Pedicle screw connector apparatus and method
ES2241915T3 (en) 2002-03-21 2005-11-01 Brainlab Ag NAVIGATION DEVICE FOR A RETRACTOR.
US6682532B2 (en) 2002-03-22 2004-01-27 Depuy Acromed, Inc. Coupling system and method for extending spinal instrumentation
US20030187431A1 (en) 2002-03-29 2003-10-02 Simonson Robert E. Apparatus and method for targeting for surgical procedures
US6966910B2 (en) 2002-04-05 2005-11-22 Stephen Ritland Dynamic fixation device and method of use
EP2457529A1 (en) 2002-05-08 2012-05-30 Stephen Ritland Dynamic fixation device and method of use
US6955678B2 (en) 2002-06-28 2005-10-18 Smith & Nephew, Inc. Soft tissue repair tool
US20040106997A1 (en) 2002-11-01 2004-06-03 Lieberson Robert E. Apparatus and method for creating a surgical channel
CA2516791C (en) * 2003-02-25 2011-12-13 Stephen Ritland Adjustable rod and connector device and method of use
JP2006513796A (en) * 2003-04-15 2006-04-27 マシーズ メディツィナルテヒニク アクチエンゲゼルシャフト Bone fixation device
WO2004110247A2 (en) 2003-05-22 2004-12-23 Stephen Ritland Intermuscular guide for retractor insertion and method of use
EP1628563B1 (en) * 2003-05-23 2009-09-23 Globus Medical, Inc. Spine stabilization system
US7753910B2 (en) 2003-07-21 2010-07-13 Stephen Ritland Surgical image tracker mounting base apparatus and method of use
US7806932B2 (en) * 2003-08-01 2010-10-05 Zimmer Spine, Inc. Spinal implant
US20050203513A1 (en) * 2003-09-24 2005-09-15 Tae-Ahn Jahng Spinal stabilization device
EP1694228B1 (en) * 2003-10-23 2011-08-31 TRANS1, Inc. Spinal mobility preservation apparatus
US20050143737A1 (en) * 2003-12-31 2005-06-30 John Pafford Dynamic spinal stabilization system
US7195633B2 (en) * 2004-01-08 2007-03-27 Robert J. Medoff Fracture fixation system
DE102004011685A1 (en) * 2004-03-09 2005-09-29 Biedermann Motech Gmbh Spine supporting element, comprising spiraled grooves at outer surface and three plain areas
US20050209694A1 (en) * 2004-03-12 2005-09-22 Loeb Marvin P Artificial spinal joints and method of use
JP4499789B2 (en) * 2004-09-22 2010-07-07 パク、キュン−ウ Bioflexible spinal fixation device using shape memory alloy
US7927357B2 (en) 2005-02-02 2011-04-19 Depuy Spine, Inc. Adjustable length implant

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of EP1596738A4 *

Cited By (49)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9622790B2 (en) 2001-09-19 2017-04-18 Warsaw Orthopedic, Inc. Rod extension for extending fusion construct
US9918744B2 (en) 2002-05-08 2018-03-20 Stephen Ritland Dynamic fixation device and method of use
US10952777B2 (en) 2003-04-09 2021-03-23 Roger P. Jackson Pivotal bone screw assembly with receiver having threaded open channel and lower opening
US10349983B2 (en) 2003-05-22 2019-07-16 Alphatec Spine, Inc. Pivotal bone anchor assembly with biased bushing for pre-lock friction fit
US8926670B2 (en) 2003-06-18 2015-01-06 Roger P. Jackson Polyaxial bone screw assembly
USRE46431E1 (en) 2003-06-18 2017-06-13 Roger P Jackson Polyaxial bone anchor with helical capture connection, insert and dual locking assembly
US11426216B2 (en) 2003-12-16 2022-08-30 DePuy Synthes Products, Inc. Methods and devices for minimally invasive spinal fixation element placement
US11419642B2 (en) 2003-12-16 2022-08-23 Medos International Sarl Percutaneous access devices and bone anchor assemblies
US10299839B2 (en) 2003-12-16 2019-05-28 Medos International Sárl Percutaneous access devices and bone anchor assemblies
US10039578B2 (en) 2003-12-16 2018-08-07 DePuy Synthes Products, Inc. Methods and devices for minimally invasive spinal fixation element placement
US9662143B2 (en) 2004-02-27 2017-05-30 Roger P Jackson Dynamic fixation assemblies with inner core and outer coil-like member
US9662151B2 (en) 2004-02-27 2017-05-30 Roger P Jackson Orthopedic implant rod reduction tool set and method
US11147597B2 (en) 2004-02-27 2021-10-19 Roger P Jackson Dynamic spinal stabilization assemblies, tool set and method
US9636151B2 (en) 2004-02-27 2017-05-02 Roger P Jackson Orthopedic implant rod reduction tool set and method
US9050139B2 (en) 2004-02-27 2015-06-09 Roger P. Jackson Orthopedic implant rod reduction tool set and method
US10485588B2 (en) 2004-02-27 2019-11-26 Nuvasive, Inc. Spinal fixation tool attachment structure
US9050148B2 (en) 2004-02-27 2015-06-09 Roger P. Jackson Spinal fixation tool attachment structure
US11291480B2 (en) 2004-02-27 2022-04-05 Nuvasive, Inc. Spinal fixation tool attachment structure
US11648039B2 (en) 2004-02-27 2023-05-16 Roger P. Jackson Spinal fixation tool attachment structure
US9918751B2 (en) 2004-02-27 2018-03-20 Roger P. Jackson Tool system for dynamic spinal implants
US11147591B2 (en) 2004-11-10 2021-10-19 Roger P Jackson Pivotal bone anchor receiver assembly with threaded closure
US9743957B2 (en) 2004-11-10 2017-08-29 Roger P. Jackson Polyaxial bone screw with shank articulation pressure insert and method
US10039577B2 (en) 2004-11-23 2018-08-07 Roger P Jackson Bone anchor receiver with horizontal radiused tool attachment structures and parallel planar outer surfaces
US11389214B2 (en) 2004-11-23 2022-07-19 Roger P. Jackson Spinal fixation tool set and method
US9629669B2 (en) 2004-11-23 2017-04-25 Roger P. Jackson Spinal fixation tool set and method
USRE47551E1 (en) 2005-02-22 2019-08-06 Roger P. Jackson Polyaxial bone screw with spherical capture, compression insert and alignment and retention structures
US10194951B2 (en) 2005-05-10 2019-02-05 Roger P. Jackson Polyaxial bone anchor with compound articulation and pop-on shank
JP2008545488A (en) * 2005-06-01 2008-12-18 オルトヴィヴァ アーベー Prosthesis positioning device and system
US11234745B2 (en) 2005-07-14 2022-02-01 Roger P. Jackson Polyaxial bone screw assembly with partially spherical screw head and twist in place pressure insert
US10729469B2 (en) 2006-01-09 2020-08-04 Roger P. Jackson Flexible spinal stabilization assembly with spacer having off-axis core member
US10470801B2 (en) 2007-01-18 2019-11-12 Roger P. Jackson Dynamic spinal stabilization with rod-cord longitudinal connecting members
US10258382B2 (en) 2007-01-18 2019-04-16 Roger P. Jackson Rod-cord dynamic connection assemblies with slidable bone anchor attachment members along the cord
KR101413732B1 (en) * 2007-02-23 2014-07-01 비이더만 테크놀로지스 게엠베하 & 코. 카게 Stabilization device for stabilizing bones of a vertebra and rod connector used therefor
US10383660B2 (en) 2007-05-01 2019-08-20 Roger P. Jackson Soft stabilization assemblies with pretensioned cords
US9907574B2 (en) 2008-08-01 2018-03-06 Roger P. Jackson Polyaxial bone anchors with pop-on shank, friction fit fully restrained retainer, insert and tool receiving features
US9918745B2 (en) 2009-06-15 2018-03-20 Roger P. Jackson Polyaxial bone anchor with pop-on shank and winged insert with friction fit compressive collet
US10363070B2 (en) 2009-06-15 2019-07-30 Roger P. Jackson Pivotal bone anchor assemblies with pressure inserts and snap on articulating retainers
US9980753B2 (en) 2009-06-15 2018-05-29 Roger P Jackson pivotal anchor with snap-in-place insert having rotation blocking extensions
US9717534B2 (en) 2009-06-15 2017-08-01 Roger P. Jackson Polyaxial bone anchor with pop-on shank and friction fit retainer with low profile edge lock
US9668771B2 (en) 2009-06-15 2017-06-06 Roger P Jackson Soft stabilization assemblies with off-set connector
US11229457B2 (en) 2009-06-15 2022-01-25 Roger P. Jackson Pivotal bone anchor assembly with insert tool deployment
US9480517B2 (en) 2009-06-15 2016-11-01 Roger P. Jackson Polyaxial bone anchor with pop-on shank, shank, friction fit retainer, winged insert and low profile edge lock
US9770265B2 (en) 2012-11-21 2017-09-26 Roger P. Jackson Splay control closure for open bone anchor
US10058354B2 (en) 2013-01-28 2018-08-28 Roger P. Jackson Pivotal bone anchor assembly with frictional shank head seating surfaces
US9717533B2 (en) 2013-12-12 2017-08-01 Roger P. Jackson Bone anchor closure pivot-splay control flange form guide and advancement structure
US10064658B2 (en) 2014-06-04 2018-09-04 Roger P. Jackson Polyaxial bone anchor with insert guides
CN107635493A (en) * 2015-04-17 2018-01-26 阿比菲克斯有限公司 Expansible multi-axial spinal internal fixation system
WO2016166663A1 (en) * 2015-04-17 2016-10-20 Apifix Ltd. Expandable polyaxial spinal system
US11547450B2 (en) 2015-04-17 2023-01-10 Apifix Ltd. Expandable polyaxial spinal system

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EP1596738A4 (en) 2010-01-20
JP4598760B2 (en) 2010-12-15
US20050149023A1 (en) 2005-07-07
US20100137914A1 (en) 2010-06-03
CA2516791C (en) 2011-12-13
CA2516791A1 (en) 2004-09-10
WO2004075778A3 (en) 2005-06-02
AU2004216131B2 (en) 2009-12-10
US6991632B2 (en) 2006-01-31
EP1596738A2 (en) 2005-11-23
AU2004216131A1 (en) 2004-09-10
US20040181223A1 (en) 2004-09-16
JP2006518657A (en) 2006-08-17
US7655025B2 (en) 2010-02-02

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