US20020169453A1 - Cannulated internally threaded bone screw - Google Patents
Cannulated internally threaded bone screw Download PDFInfo
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- US20020169453A1 US20020169453A1 US10/154,923 US15492302A US2002169453A1 US 20020169453 A1 US20020169453 A1 US 20020169453A1 US 15492302 A US15492302 A US 15492302A US 2002169453 A1 US2002169453 A1 US 2002169453A1
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- bone
- bone screw
- screw
- shaft member
- rod
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical 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
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/80—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical 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
- A61B17/60—Surgical 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 for external osteosynthesis, e.g. distractors, contractors
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical 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
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/84—Fasteners therefor or fasteners being internal fixation devices
- A61B17/86—Pins or screws or threaded wires; nuts therefor
- A61B17/864—Pins or screws or threaded wires; nuts therefor hollow, e.g. with socket or cannulated
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical 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
- A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
- A61B17/8875—Screwdrivers, spanners or wrenches
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical 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
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/84—Fasteners therefor or fasteners being internal fixation devices
- A61B17/86—Pins or screws or threaded wires; nuts therefor
- A61B17/8625—Shanks, i.e. parts contacting bone tissue
- A61B17/8635—Tips of screws
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B2017/0046—Surgical instruments, devices or methods, e.g. tourniquets with a releasable handle; with handle and operating part separable
Definitions
- the invention generally relates to bone fracture reduction and fixation and more particularly to a cannulated, internally threaded bone screw and a reduction driving device and a method of using the same to effect the reduction and fixation of bone fractures.
- screw-type devices and associated drivers for bone fracture repair. These screw-type devices may be used in combination with clamps to achieve bone fracture fixation.
- U.S. Pat. No. 5,498,265 issued Mar. 12, 1996 discloses a bone screw and a driver for driving the screw into a fracture site.
- the bone screw has a threaded shank having proximal and distal externally threaded shank portions and an internally threaded head sleeve portion which receives the threaded rod of the driver.
- the driver has a handle and an inner rod connected to the handle. The rod fits within the head sleeve and mates with a cutout in the proximal end of the threaded shank portion.
- U.S. Pat. No. 2,243,717, issued May 27, 1941, for a surgical device shows a cannulated bone screw having a threaded end, a square shaft portion, a round shaft portion and a screw portion.
- a clamp formed with a head and skirt has a bore allowing it to be mounted on the threaded end.
- a nut is threadedly mounted on the threaded end of the bone screw.
- the guide wire previously inserted is withdrawn, the clamp is applied to the threaded end of the bone screw, and the nut is caused to engage the threaded end. Tightening the nut moves the clamp towards the screw portion to fix the fracture.
- Screw-type devices which are used in combination with external clamping means to achieve bone fracture reduction and fixation are also known.
- U.S. Pat. No. 5,690,633, issued Nov. 25, 1997 shows a fracture fixation device which combines the functions of external fixation pins and external fixation or “lag-type” screws in a single unit.
- the fracture fixation device includes cannulated screw means for screwing into a first bone fragment over a guide pin and engagement means in the form of a collar mounted on a rod for engaging a second bone fragment.
- the screw means and engagement means coact to compress first and second bone fragments.
- Attachment means preferably integral with the screw means has an outer end for attachment to an external fixator system which includes an elongated external fixator rod and at least a pair of external fixator connectors attached to the rod at spaced locations.
- a screw and driver for securing a bone block is disclosed in U.S. Pat. No. 5,423,819, issued Jun. 13, 1995.
- the screw and driver are both rotationally and axially releaseably coupled so the screw can be inserted in a downwardly facing hole.
- the screw is preferably threaded along its entire exterior surface length and has a blind bore which opens on the proximal end of the screw.
- a driver with an elongated shaft is inserted into a counterbore portion of the axial blind bore of the screw so that the front portion will compress radially. When the front portion is fully inserted, it snugly engages the wall of the bore with a minor spring biased interference so that the driver is releasably coupled to the screw.
- the driver also includes an elongate intermediate portion having a hexagonal cross-section and the counterbore of the screw is provided with a complimentary hexagonal cross-sectional configuration so that rotation of the intermediate portion causes rotation of the screw.
- a throughgoing axially aligned bore is provided in both the screw and the driver to accommodate a K-wire allowing the screw to slide freely along the wire.
- U.S. Pat. No. 5,431,651 shows a cross pin and set screw femoral and tibial fixation apparatus and method for mounting a ligament graft.
- the patent is directed towards an arthroscopic surgical procedure for replacement of a cruciate ligament in a knee and requires fixation of the ends of a ligament in a prepared tunnel.
- Transverse holes are drilled in the femoral tunnel during the procedure preferably using a drill guide.
- the apparatus includes a drill guide for drilling the transverse hole or holes which is arranged to be releasable from a first twist drill so that the first twist drill is left in place to be used for guiding further drilling and for passage of a fastener device.
- a K-wire or the first twist drill that has been left in place is then used for guiding a second twist drill for enlarging the transverse hole and for guiding a cannulated screw fastener device in the femoral bone end of a ligament graft that has been fitted in to the femoral tunnel section.
- a set screw is mounted on a forward end of a turning tool and the turning tool and set screw are cannulated to receive a K-wire.
- a coupling end of the turning tool is seated in a rear end recess in the set screw to mount the screw on the turning tool so that the turning tool and set screw are rotatably coupled but not axially coupled.
- a cannulated bone screw is shown in U.S. Pat. No. 4,950,270, issued Aug. 21, 1990.
- the bone screw has an axial cannula suitable for use with a guide pin for positioning the screw in a bore.
- the screw is provided with an exterior screw thread having a normal helical winding for screwing insertion of the screw into a bone material.
- the external threading extends the length of the screw to facilitate the complete insertion of the same in the bone.
- a cannulated screw and driver used in bone marrow harvesting and bone biopsy systems is shown in U.S. Pat. No. 5,456,267, issued Oct. 10, 1995.
- the cannulated screw has a torque receiving head and threaded shaft exterior with one embodiment including inner threads which terminate a hexagonal shaped interior portion.
- the head is provided with a hexagonal shaped interior portion to permit engagement with a driving tool.
- the screw includes a structure on one end permitting attachment of a fitting for applying negative pressure to facilitate marrow harvesting.
- the embodiment includes inner threads on a first end, or in the alternative, pressure fittings or twist lock fittings may be provided. The threads or other structures must provide sufficient seal to permit the negative pressure required for harvesting.
- the present invention discloses and describes a cannulated, externally and internally threaded bone screw and a driving device for same for use in the reduction and fixation of bone fractures.
- the head of the screw is shaped to conform to the end portion of the driving device and may be of various shapes and sizes.
- the internal threading allows the bone screw to be used in a wide range of orthopedic applications.
- the internal threading can serve as an attachment site for the driving device or may be used for fixation of orthopedic equipment such as bone plates, rods or other types of screws.
- a distally threaded rod member and a releasable lockable cap member are used to secure an internally threaded bone screw to the distal end of the cannulated bone screw driving device.
- a bone fixation and reduction unit can be constructed by securing the bone screw to the driver device by threading an end of the rod member with the internal threading of the bone screw and rotating the cap member mounted on the proximal end of the rod member to tighten the engagement.
- the screw is secured to the driver device by a threaded rod and because the bone screw is constructed of high grade surgical steel with machined external and internal threading, considerable force can be applied to the unit to align the bone, reduce the bone fracture and apply traction to the fracture site.
- the driver can be quickly detached from the screw by manually rotating the cap member to disengage the rod from the internal screw threading. This allows the bone screw and driving device to be used in a wide range of orthopedic applications.
- the bone screw and driving device can also be used in various ways with conventional bone plates.
- the reduction and fixation assembly can be used alone or with other assemblies to align and reduce fractures.
- the assemblies may, for example, be secured to fractured bone sections in pairs with one assembly on each side of the fracture site, and manually manipulated to reduce the fracture.
- the driving devices can be easily removed by manually manipulating the cap member, leaving the bone screw in place or the assemblies themselves may be used as external fracture fixation devices.
- a handle portion of the driving device may be removed and conventional cross bars or other clamping devices may be attached between shaft portions of the assemblies to convert the assemblies into an external fixator device to effect fracture fixation.
- a plurality of bone screws are driven with a first driving device into a fractured bone through the apertures in a bone plate.
- a plurality of driving devices are secured to bone screws on opposite sides of the fracture with respective threaded rods to provide reduction and fixation assemblies on each side of the fracture site to effect fracture alignment and reduction.
- the bone screws can be tightened to hold the plate in place for fracture fixation and the driving devices are removed leaving the bone screws in the bone.
- a plurality of bone screws can be driven with a driving device into a fractured bone in alignment to receive the apertures in a bone plate and support the same.
- a conventional bone plate can be applied to the fracture site by mounting the plate on the aligned internally threaded bone screws with a second set of conventional screws which extend through the apertures in the bone plate and threadedly engage the internal threading of the bone screws.
- the head portions of the bone screws can thus be used to support a conventional bone plate or other conventional orthopedic equipment and the internally threaded cannula of each screw can receive and threadedly engage a conventional second screw to secure the bone plate or other structure to the fracture site.
- Yet another object of the invention is to provide a bone screw-driver assembly of simple construction which can be used to apply traction to the fracture site.
- the internal threading can advantageously provide an attachment site for a reduction screw driving device that can be used to drive the internally threaded bone screws into bony tissue including cortical or cancellous bone during orthopedic surgical procedures.
- rod member and cap member to adapt a cannulated screwdriver, and a cannulated, internally threaded bone screw to construct a bone fixation and reduction assembly.
- Another object of this invention is to use the bone screw driver assembly to align and reduce fractures.
- Yet another object of this invention is to describe a plurality of methods for using the bone screw-driver assembly during surgical procedures following fracture alignment and reduction to effect bone fracture fixation.
- FIG. 1 is a partially exploded view of the bone reduction and fixation invention showing a driver and cannulated, internally and externally threaded bone screw;
- FIG. 2 is a side elevational view of the bone reduction and fixation assembly of FIG. 1;
- FIG. 3 is a cross-sectional view of the bone reduction and fixation assembly of FIG. 2;
- FIG. 4 is a side elevational view of a fully externally threaded cannulated and internally threaded bone screw used in the invention
- FIG. 5 is an enlarged front elevational view of the head of the bone screw of FIG. 4;
- FIG. 6 is a side elevational view of a partially externally threaded, cannulated and internally threaded bone screw used in the invention
- FIG. 7 is an enlarged front elevational view of the head of the bone screw of FIG. 6;
- FIG. 8 is a schematic fragmentary side elevational view of a fracture site showing a plurality of bone reduction and fixation assemblies secured to portions of the fractured bone to reduce the bone fracture;
- FIG. 9 is a schematic side elevational view similar to FIG. 8 showing a conventional bone plate mounted on the bone fracture sections by a plurality of reduction and fixation assemblies to effect fracture fixation;
- FIG. 10 is a schematic side elevational view similar to FIG. 8 showing a plurality of conventional clamping devices mounted on the bone reduction and fixation assemblies to effect fracture fixation;
- FIG. 11 is a schematic side elevational view showing a plurality of aligned internally threaded bone screws of the present invention supporting a conventional bone plate with a plurality of conventional surgical screws threadedly engaged with the threaded bone screws to secure the bone plate to the fracture site.
- FIGS. 1 to 7 show a cannulated, internally and externally threaded bone screw 20 and a cannulated driver device 22 constructed according to the principles of the present invention.
- the driver device 22 includes a shaft member 26 defining a throughgoing bore 27 , a handle 28 and includes a rod 30 and a cap member 32 .
- the rod 30 and cap member 32 are used to releasably secure the bone screw 20 to the driver device 22 as will later be described.
- the shaft member 26 is an elongated, generally cylindrical structure which has a cylindrical throughgoing bore or cannula 27 best seen in the cross-sectional view of FIG. 3 which extends longitudinally from a proximal end 34 of the shaft member 26 to a distal end 36 .
- the shaft member 26 is an integral tubular structure preferably constructed of surgical steel, although any suitable material can be used, and includes a shaped engagement structure 38 integrally formed at the distal end 36 and one or more annular grooves 37 spaced along its length.
- the engagement structure 38 which preferably has a hexagonal configuration facilitates the mating and rotational engagement of the bone screw 20 with the driver as will be described and the grooves 37 may be used as attachment sites for conventional clamp members during a bone fixation procedure. It will be appreciated that the engagement structure 38 may take any angular configuration such as square, octagonal or the like and can alternatively engage the outer periphery of the screw head.
- the handle 28 has a throughgoing bore 39 to receive the proximal end 34 of the shaft member 26 and is preferably constructed of wood or plastic.
- the handle 28 is secured to the shaft member 26 by securing the handle sections together with conventional rivets 39 or by other suitable means.
- the rivets do not extend into or through the bore of the shaft member 26 .
- the handle member 28 may be removably mounted to the shaft member 26 .
- the rod 30 is an integral, solid, generally cylindrical structure preferably constructed of surgical or high grade steel and is provided with a threaded section 42 at its distal end and a machined recess or well 44 near its proximal end which receives set screw 47 .
- the cap member 32 is a generally cylindrical structure that has a blind bore 43 to receive the proximal end of the rod 30 and a cylindrical, internally threaded passage 45 which extends from a side surface of the cap member 32 into the blind bore 43 to permit the passage of a conventional set screw 47 having an Allen head.
- a conical end portion of the Allen set screw is received within the well 44 in the rod 30 to lock the cap member 32 to the rod 30 .
- the outer surface of cap 32 is knurled at 33 to allow the cap 32 and secured rod 30 to be rotated within bore 27 of the shaft 26 so that threaded end 42 can be screwed into the inner thread 58 of the cannulated bone screw 20 .
- the outer diameter of the cylindrical rod 30 is less than the inner diameter of the cylindrical bore 27 in the shaft member 26 so that the rod 30 can be easily received therein and pass therethrough.
- the threaded end section 42 has threads with an outer diameter greater than the outer diameter of bore 27 so that rod 30 cannot be pulled through the bore 27 of the shaft 26 .
- the rod 30 is longer than the shaft member 26 so that when the cap member 32 is mounted on the rod 30 and the rod 30 is disposed within the cannula or bore 27 of the shaft member 26 , the threaded section 42 of the rod 30 extends a predetermined length beyond the distal end 36 of the shaft member 26 to threadedly engage the internal threading 58 of the bone screw 20 .
- the cannulated, internally threaded bone screw 20 shown in cross-section in FIG. 3 is mounted on the driver device 22 and is also shown in FIGS. 4 and 6.
- the bone screw 20 is an integral structure preferably made of surgical steel and includes a shank 46 , a head 48 and a tip portion 50 .
- the shank 46 of the bone screw 20 has an external thread 52 which is helically formed thereabout, and extends from the head 48 to the tip portion 50 .
- the head 48 has a generally larger outer diameter than the shank 46 and defines a hexagonal shaped recess 49 so that the bone screw can receive torque from the engagement structure 38 and apply a compressive force to a bone surface or to retain a bone plate against a bone for fracture fixation.
- the exterior surface of the tip portion is tapered and provided with a plurality of flutes 54 so that the bone screw is self drilling.
- the plurality of flutes 54 extend proximally longitudinally from the tip portion 50 and may extend into the shank 46 .
- a throughgoing internal bore or cannula 56 extends from the head 48 through the shank 46 to the tip portion 50 and is provided with an internal thread 58 , preferably throughout its length.
- a recess 49 shaped to receive the shaft engagement head 38 is formed in the head 48 of the bone screw 20 . This recess is axially aligned with the cannula 56 .
- the walls of the recess 49 have a hexagonal cross-section and define an engagement recess portion of the bone screw 20 . As shown in FIG.
- the engagement structure 38 of the driver device 22 is formed by a hexagonal configuration on the distal end of the shaft 26 and is dimensioned to be received within the recess 49 formed in the head of the bone screw 20 to rotatably engage the bone screw and the driver. It is understood that this structure is exemplary only and that the engagement portion of the bone screw may also be formed on the outer periphery of the head portion.
- FIGS. 6 and 7 An alternative embodiment of an internally threaded bone screw 220 is shown in FIGS. 6 and 7. This embodiment is constructed for use in cancellous bone.
- the external surface of body portion 246 of the bone screw 220 is partially threaded at section 222 and smooth surfaced or unthreaded at section 224 and the tip portion 250 is provided with a plurality of flutes 254 .
- the integral head 248 has a larger exterior diameter than the body portion and defines a hexagonal recess 249 which seats the shaft engagement end 38 and the internal threading preferably extends the entire length of the bone screw cannula 256 .
- the internal and exterior threads of the bone screws 20 and 220 are preferably formed by machining and the internal thread structures may partially or fully cover the wall of the respective interior bores of the bone screws 20 , 220 .
- Each the bone screws 20 and 220 is self-drilling and self-tapping.
- the bone screw 20 and driver device 22 can be assembled using the rod 30 and cap member 32 as shown, for example, in FIGS. 1 - 3 , to form a bone reduction and fixation assembly 60 which can be used to effect bone fraction reduction and fixation.
- the engagement structure 38 of the shaft member 26 and the engagement seat 49 of the bone screw 20 are of complimentary size and shape so that the engagement structure 38 can be snugly received within the engagement seat 49 of the bone screw 20 to rotationally lock the driver device 22 with the bone screw 20 .
- the throughgoing bore 27 of the shaft member 26 is axially aligned with the internally threaded bore 56 of the bone screw 20 .
- the rod 30 is used to releasably axially secure the bone screw 20 to the driver device 22 by securing the cap member 32 on the rod 30 by tightening the Allen set screw 47 into the recess 44 of the rod member.
- the threaded section 42 of the rod 30 is threaded on the internal thread 58 projecting from the internal bore 56 of the bone screw 20 and the rod 30 is rotated by manually manipulating the cap member 32 until the bone screw 20 is tightly axially releaseably interlocked to the driver device 22 . Reverse rotation will of course unlock the driver device 22 and bone screw 20 .
- FIGS. 2 and 3 This configuration is best seen in FIGS. 2 and 3.
- the driver device 22 and the bone screw 20 form a single assembly which is referred to as the bone reduction and fixation assembly and is generally designated by the reference numeral 60 as shown in FIG. 3.
- the assembly 60 does more than maintain the bone screw in engagement with the driver to facilitate screw positioning and the driving insertion thereof into cortical or cancellous bone.
- This rigid engagement allows the surgeon to manually manipulate the fractured bones to reduce the fracture after the screw (or screws) has been inserted (See FIG. 8) and permits fracture fixation after the fracture has been reduced through conventional bone clamps mounted between adjacent assemblies 60 .
- FIG. 8 shows an example of how an internally threaded bone screw can be used as a fracture reduction device at a fracture site 66 in a bone 68 .
- the fracture 66 has separated the bone 68 into two portions 68 a and 68 b .
- Two identical bone fracture reduction and fixation assemblies 60 a and 60 b are secured to the bone portions 68 a and 68 b , respectively, adjacent the fracture site 66 .
- the description for insertion of a bone screw 20 a , 20 b is given with reference to assembly 60 a ; it being understood that bone screw 60 b is inserted in the same way.
- a guide hole (not shown) is formed in the cortical portion of the bone fragment 68 a proximate the fracture site 66 .
- a smooth surgical guide wire or K-wire is inserted in the guide hole.
- a conventional cannulated surgical drill optionally used in conjunction with a conventional drill guide, may be used to form a guide hole.
- the conventional surgical guide wire or K-wire may be inserted in the guide hole through the cannula of the drill before the same is removed therefrom, leaving the guide wire in place.
- the cannulated, internally threaded bone screw 20 is inserted over the guide wire with the cannulated driver device 22 to engage two cortices of bone.
- the threaded rod 30 and the cap member 32 have not been mounted on the cannulated driving device when the guide wire is used to guide the bone screw and driver to the guide hole.
- the smooth guide wire is removed leaving the bone screw in the bone portion 68 a .
- the engagement end 38 of the driver device 22 is interengaged with the recess or seat 49 of the bone screw 20 and the externally threaded rod 30 is rotated and tightened into the internal thread of the cannulated screw by manually rotating the cap member 32 .
- the bone screw 20 and driver device 22 are thus locked together to form the bone reduction and fixation assembly 60 a .
- a second assembly 60 b can be secured to the bone portion 68 b using a second internally threaded bone screw 20 b by repeating this procedure.
- the surgeon can then manipulate the bone portions 68 a , 68 b by grasping the handle members 28 a , 28 b and pulling each of the handles towards each other in direction “A” to reduce the fracture 66 manually.
- FIG. 9 shows that the internally threaded bone reduction screw can be applied through a conventional bone fixation plate 76 which is shown in place over the fracture site 66 .
- a conventional fixation plate 76 typically at least one of the bone screws 20 a or 20 b is inserted through an elongated slot 77 in the plate so that the bone portions 68 a and 68 b can be brought together in direction “A” to reduce the fracture 66 before the plate 76 is firmly fastened on the bone portions.
- FIG. 10 shows that when the bone fracture 66 has been appropriately aligned and reduced by the assemblies 60 a , 60 b , conventional external fixator cross bars 70 can be mounted between the shaft members 26 a , 26 b so that the assemblies 60 a , 60 b can be used for bone fixation holding bone segments 68 a , 68 b in a fixed position.
- the handles 28 a , 28 b are shown still in place on the assemblies 60 a , 60 b and have previously been described as being mounted to the shaft member 26 with conventional rivets, it is within the scope of the invention to provide a removable handle 28 on each assembly 60 so that the handles can be removed after the external fixator cross bars 70 have been mounted therebetween to hold the fractured bone together.
- the external fixator cross bars 70 are conventional and the structure thereof and the method of mounting the same is well known.
- Conventional devices such as the cross bars 70 typically are comprised of a rigid central bar structure and a conventional clamping device mounted on each end of the bar structure and are well known in the art. Any conventionally known clamping device or cross bar can be used with the assemblies 60 to form an external fixator.
- the firm fixation of the inventive bone screw 20 is superior to Schantz screws or other types of external fixation pins and should result in decreased incidence of pin loosening.
- the external fixation device can be easily removed in one step by loosening the bone screw 20 with the driver device 22 .
- FIG. 11 shows a plurality of internally threaded bone screws 20 cooperating to form a fixation site to receive and support a conventional bone plate 78 .
- the cortical bone screws 20 are inserted in the bone portions 68 a , 68 b in appropriate vertical and horizontal alignment to receive a second set of conventional surgical screws 80 which extend through the slots or cylindrical apertures 79 formed in the bone plate 78 .
- the top surfaces of the heads of the bone screws 20 form support surfaces to support the bone plate 78 .
- the bone plate 78 may be affixed to the bone 68 by forming a series appropriately aligned and appropriately directed guide holes in the bone portions 68 a and 68 b .
- a conventional drill and drill guide may be used for this purpose.
- a bone screw 20 is placed therein using a K-wire as previously described.
- Two or more reduction and fixation assemblies 60 may be used in the manner described above to manually reduce the fracture before the conventional plate is applied.
- the bone plate 78 is placed on the heads of the bone screws which have flat or other appropriately shaped surfaces thereon to support the bone plate 78 .
- the top surfaces 82 of the bone screws 20 are planar and the screws have been placed in the bone such that the top surfaces 82 are essentially coplanar.
- the bone screws 20 are aligned to coincide with the apertures in the bone plate 78 .
- the surgical screws 80 are screwed into the internal threading of the bone screws 20 to secure the plate to the fracture site 66 .
- the threaded rod 30 can be used with a cannulated driving device, including many conventional cannulated driving devices, to form a fracture fixation and reduction assembly 60 of the invention.
- this fixed assembly can be used as a fracture reduction tool to assist in aligning fractures of bone.
- the assembly 60 can also be used to apply traction to a fracture site.
- the screw can be inserted directly into bone or through a conventional fixation plate.
- the assembly 60 can be used as an external fixation device for bone fractures. Once the fracture is reduced, the handle of the driver device 22 may be removed and cross bars 70 may be attached to the shaft member 26 converting the assembly 60 to an external fixator device.
- the internally threaded screw can be used independently as a bone fixation screw.
- the internal threads may be used to apply optional devices such a screws, plates or rods for other fixation purposes. It is understood that the bone screws shown herein are exemplary only and not intended to be limiting. One skilled in art will appreciate that the internally threaded cannulated screws can be manufactured in various shapes and sizes and that the internal threads may partially or fully encompass the length of the bone screws.
Abstract
A combination bone screw and driver assembly for driving a cannulated internally threaded bonescrew, comprising: a bone screw with shank having a head integrally formed at the proximal end and defining a cannula extending through the head and shank. An external thread is formed on the shank outer surface and an internal thread formed on a surface defining the inner cannula. An engagement structure is formed in the head to receive and rotatably engage a driver having a shape complimentary to the shape of the engagement structure.
The driver comprises a cylindrical shaft member defining an internal throughgoing cannula and an engagement structure formed at the distal end of the shaft member to engage the shaft member to a complimentary engagement structure formed on the cannulated internally threaded screw, a handle member mounted to the proximal end of the shaft member and a rod member movably disposed within the cannula of the shaft member defining a thread portion formed at one end which can be threaded along the internal thread of said bone screw. A cap member removably mounted on the other end of the rod member retains the rod member within the shaft member when a the bone screw is threadedly engaged on the one end of the rod member and applies torque to the rod member.
In operation a plurality of bores are drilled in different sections of fractured bone site and at least two bone screws are driven into respective bores of said different sections of a fractured bone with a driver. The drivers are secured respectively, to the bone screws to form a first and a second bone fixation and reduction assembly; and the first and second bone fixation and reduction assemblies are transported toward each other to reduce the fracture. The first and second bone fixation and reduction assemblies are then clamped together to effect fixation of the fractured bone.
Description
- The invention generally relates to bone fracture reduction and fixation and more particularly to a cannulated, internally threaded bone screw and a reduction driving device and a method of using the same to effect the reduction and fixation of bone fractures.
- It is known to use screw-type devices and associated drivers for bone fracture repair. These screw-type devices may be used in combination with clamps to achieve bone fracture fixation. As one example of same, U.S. Pat. No. 5,498,265 issued Mar. 12, 1996 discloses a bone screw and a driver for driving the screw into a fracture site. The bone screw has a threaded shank having proximal and distal externally threaded shank portions and an internally threaded head sleeve portion which receives the threaded rod of the driver. The driver has a handle and an inner rod connected to the handle. The rod fits within the head sleeve and mates with a cutout in the proximal end of the threaded shank portion. After the screw is placed in a fractured bone, the length of the screw can be adjusted longitudinally to compress the fracture.
- U.S. Pat. No. 2,243,717, issued May 27, 1941, for a surgical device shows a cannulated bone screw having a threaded end, a square shaft portion, a round shaft portion and a screw portion. A clamp formed with a head and skirt has a bore allowing it to be mounted on the threaded end. A nut is threadedly mounted on the threaded end of the bone screw. When the bone screw is used in fracture repair, the fracture site is drilled to form a bore and the screw portion of the bone screw is screwed into the bone bore using wrench members specially adapted to drive the bone screw. When the bone screw is firmly anchored in the bone, the guide wire previously inserted is withdrawn, the clamp is applied to the threaded end of the bone screw, and the nut is caused to engage the threaded end. Tightening the nut moves the clamp towards the screw portion to fix the fracture.
- An example of a similar screw type device, the length of which can be adjusted to compress a fracture site can be found in U.S. Pat. No. 2,121,193, issued Dec. 21, 1932. U.S. Pat. No. 4,858,601, issued Aug. 22, 1989, is also directed toward a adjustable length screw in the form of a sectioned bone screw which is cannulated and threaded on its outer surface. The bone sections are held together by a spindle received in the cannula and soldered to a section.
- Screw-type devices which are used in combination with external clamping means to achieve bone fracture reduction and fixation are also known. U.S. Pat. No. 5,690,633, issued Nov. 25, 1997, shows a fracture fixation device which combines the functions of external fixation pins and external fixation or “lag-type” screws in a single unit. The fracture fixation device includes cannulated screw means for screwing into a first bone fragment over a guide pin and engagement means in the form of a collar mounted on a rod for engaging a second bone fragment. The screw means and engagement means coact to compress first and second bone fragments. Attachment means preferably integral with the screw means has an outer end for attachment to an external fixator system which includes an elongated external fixator rod and at least a pair of external fixator connectors attached to the rod at spaced locations.
- Further examples of external fixation devices and clamps can be found in U.S. Pat. No. 1,789,060, issued Jan. 13, 1931, and U.S. Pat. No. 4,360,012, issued Nov. 23, 1982.
- A screw and driver for securing a bone block is disclosed in U.S. Pat. No. 5,423,819, issued Jun. 13, 1995. The screw and driver are both rotationally and axially releaseably coupled so the screw can be inserted in a downwardly facing hole. The screw is preferably threaded along its entire exterior surface length and has a blind bore which opens on the proximal end of the screw. A driver with an elongated shaft is inserted into a counterbore portion of the axial blind bore of the screw so that the front portion will compress radially. When the front portion is fully inserted, it snugly engages the wall of the bore with a minor spring biased interference so that the driver is releasably coupled to the screw. The driver also includes an elongate intermediate portion having a hexagonal cross-section and the counterbore of the screw is provided with a complimentary hexagonal cross-sectional configuration so that rotation of the intermediate portion causes rotation of the screw. In one embodiment of the screw and driver, a throughgoing axially aligned bore is provided in both the screw and the driver to accommodate a K-wire allowing the screw to slide freely along the wire.
- U.S. Pat. No. 5,431,651, issued Jul. 11, 1995, shows a cross pin and set screw femoral and tibial fixation apparatus and method for mounting a ligament graft. The patent is directed towards an arthroscopic surgical procedure for replacement of a cruciate ligament in a knee and requires fixation of the ends of a ligament in a prepared tunnel. Transverse holes are drilled in the femoral tunnel during the procedure preferably using a drill guide. The apparatus includes a drill guide for drilling the transverse hole or holes which is arranged to be releasable from a first twist drill so that the first twist drill is left in place to be used for guiding further drilling and for passage of a fastener device. A K-wire or the first twist drill that has been left in place is then used for guiding a second twist drill for enlarging the transverse hole and for guiding a cannulated screw fastener device in the femoral bone end of a ligament graft that has been fitted in to the femoral tunnel section. A set screw is mounted on a forward end of a turning tool and the turning tool and set screw are cannulated to receive a K-wire. A coupling end of the turning tool is seated in a rear end recess in the set screw to mount the screw on the turning tool so that the turning tool and set screw are rotatably coupled but not axially coupled.
- A cannulated bone screw is shown in U.S. Pat. No. 4,950,270, issued Aug. 21, 1990. The bone screw has an axial cannula suitable for use with a guide pin for positioning the screw in a bore. The screw is provided with an exterior screw thread having a normal helical winding for screwing insertion of the screw into a bone material. The external threading extends the length of the screw to facilitate the complete insertion of the same in the bone.
- A cannulated screw and driver used in bone marrow harvesting and bone biopsy systems is shown in U.S. Pat. No. 5,456,267, issued Oct. 10, 1995. The cannulated screw has a torque receiving head and threaded shaft exterior with one embodiment including inner threads which terminate a hexagonal shaped interior portion. The head is provided with a hexagonal shaped interior portion to permit engagement with a driving tool. The screw includes a structure on one end permitting attachment of a fitting for applying negative pressure to facilitate marrow harvesting. The embodiment includes inner threads on a first end, or in the alternative, pressure fittings or twist lock fittings may be provided. The threads or other structures must provide sufficient seal to permit the negative pressure required for harvesting.
- An examination of the prior art indicates the need for a fracture reduction bone screw that provides an attachment site for a bone screw driving device so that the bone screw and driving device cooperate to form an assembly which can be manually manipulated to effect fracture reduction and provide structural support for conventional clamping devices to effect bone fracture fixation.
- The present invention discloses and describes a cannulated, externally and internally threaded bone screw and a driving device for same for use in the reduction and fixation of bone fractures. The head of the screw is shaped to conform to the end portion of the driving device and may be of various shapes and sizes.
- The internal threading allows the bone screw to be used in a wide range of orthopedic applications. For example, the internal threading can serve as an attachment site for the driving device or may be used for fixation of orthopedic equipment such as bone plates, rods or other types of screws.
- In the driving device, a distally threaded rod member and a releasable lockable cap member are used to secure an internally threaded bone screw to the distal end of the cannulated bone screw driving device. After the bone screw is driven into a bone, a bone fixation and reduction unit can be constructed by securing the bone screw to the driver device by threading an end of the rod member with the internal threading of the bone screw and rotating the cap member mounted on the proximal end of the rod member to tighten the engagement.
- Because the screw is secured to the driver device by a threaded rod and because the bone screw is constructed of high grade surgical steel with machined external and internal threading, considerable force can be applied to the unit to align the bone, reduce the bone fracture and apply traction to the fracture site. The driver can be quickly detached from the screw by manually rotating the cap member to disengage the rod from the internal screw threading. This allows the bone screw and driving device to be used in a wide range of orthopedic applications. The bone screw and driving device can also be used in various ways with conventional bone plates.
- The reduction and fixation assembly can be used alone or with other assemblies to align and reduce fractures. The assemblies may, for example, be secured to fractured bone sections in pairs with one assembly on each side of the fracture site, and manually manipulated to reduce the fracture. Following fracture reduction, the driving devices can be easily removed by manually manipulating the cap member, leaving the bone screw in place or the assemblies themselves may be used as external fracture fixation devices. For example, once the fracture is reduced, a handle portion of the driving device may be removed and conventional cross bars or other clamping devices may be attached between shaft portions of the assemblies to convert the assemblies into an external fixator device to effect fracture fixation.
- In a first example of the use of a bone plate with the bone screw and driving device, a plurality of bone screws are driven with a first driving device into a fractured bone through the apertures in a bone plate. A plurality of driving devices are secured to bone screws on opposite sides of the fracture with respective threaded rods to provide reduction and fixation assemblies on each side of the fracture site to effect fracture alignment and reduction. Following fracture alignment and reduction, the bone screws can be tightened to hold the plate in place for fracture fixation and the driving devices are removed leaving the bone screws in the bone.
- In a second example using a bone plate with the bone screw and driving device, a plurality of bone screws can be driven with a driving device into a fractured bone in alignment to receive the apertures in a bone plate and support the same. After fracture reduction with a pair of reduction and fixation assemblies, a conventional bone plate can be applied to the fracture site by mounting the plate on the aligned internally threaded bone screws with a second set of conventional screws which extend through the apertures in the bone plate and threadedly engage the internal threading of the bone screws. The head portions of the bone screws can thus be used to support a conventional bone plate or other conventional orthopedic equipment and the internally threaded cannula of each screw can receive and threadedly engage a conventional second screw to secure the bone plate or other structure to the fracture site.
- Yet another object of the invention is to provide a bone screw-driver assembly of simple construction which can be used to apply traction to the fracture site.
- It is an object of the invention to provide a self-drilling, self-tapping cannulated bone screw that is both externally and internally threaded. The internal threading can advantageously provide an attachment site for a reduction screw driving device that can be used to drive the internally threaded bone screws into bony tissue including cortical or cancellous bone during orthopedic surgical procedures.
- It is a further object of the present invention to provide an internally threaded bone screw that can be used for bone reduction and fixation of fractured bones, for the fixation of orthopedic equipment such as plates, rods to bone, particularly fractured bone, or for the fixation of other types of screws in orthopedic procedures.
- It is a further object of the invention to provide a rod member that is threaded at a distal end and cap member that is releaseably locked to a proximal end of the rod member to provide torque to the rod member.
- It is also an object of the invention use the rod member and cap member to adapt a cannulated screwdriver, and a cannulated, internally threaded bone screw to construct a bone fixation and reduction assembly.
- Another object of this invention is to use the bone screw driver assembly to align and reduce fractures.
- Yet another object of this invention is to describe a plurality of methods for using the bone screw-driver assembly during surgical procedures following fracture alignment and reduction to effect bone fracture fixation.
- It is a further object of this invention to show how a plurality of the assemblies can be used for fixation of fractures using external support structures; and to show how a driving device can be easily removed from an assembly once the bone screw is in place and the screw can be used for the application of a surgical plate to the fracture site.
- These and other objects, advantages, and novel features of the present invention will become apparent when considered with the teaching contained in the detailed disclosure along with the accompanying drawings.
- FIG. 1 is a partially exploded view of the bone reduction and fixation invention showing a driver and cannulated, internally and externally threaded bone screw;
- FIG. 2 is a side elevational view of the bone reduction and fixation assembly of FIG. 1;
- FIG. 3 is a cross-sectional view of the bone reduction and fixation assembly of FIG. 2;
- FIG. 4 is a side elevational view of a fully externally threaded cannulated and internally threaded bone screw used in the invention;
- FIG. 5 is an enlarged front elevational view of the head of the bone screw of FIG. 4;
- FIG. 6 is a side elevational view of a partially externally threaded, cannulated and internally threaded bone screw used in the invention;
- FIG. 7 is an enlarged front elevational view of the head of the bone screw of FIG. 6;
- FIG. 8 is a schematic fragmentary side elevational view of a fracture site showing a plurality of bone reduction and fixation assemblies secured to portions of the fractured bone to reduce the bone fracture;
- FIG. 9 is a schematic side elevational view similar to FIG. 8 showing a conventional bone plate mounted on the bone fracture sections by a plurality of reduction and fixation assemblies to effect fracture fixation;
- FIG. 10 is a schematic side elevational view similar to FIG. 8 showing a plurality of conventional clamping devices mounted on the bone reduction and fixation assemblies to effect fracture fixation; and
- FIG. 11 is a schematic side elevational view showing a plurality of aligned internally threaded bone screws of the present invention supporting a conventional bone plate with a plurality of conventional surgical screws threadedly engaged with the threaded bone screws to secure the bone plate to the fracture site.
- The preferred mode and best embodiment of the present invention is shown in FIGS.1 to 7. Referring now to the drawings, FIGS. 1-3 show a cannulated, internally and externally threaded
bone screw 20 and a cannulateddriver device 22 constructed according to the principles of the present invention. - The
driver device 22 includes ashaft member 26 defining a throughgoing bore 27, ahandle 28 and includes arod 30 and acap member 32. Therod 30 andcap member 32 are used to releasably secure thebone screw 20 to thedriver device 22 as will later be described. Theshaft member 26 is an elongated, generally cylindrical structure which has a cylindrical throughgoing bore orcannula 27 best seen in the cross-sectional view of FIG. 3 which extends longitudinally from aproximal end 34 of theshaft member 26 to adistal end 36. - The
shaft member 26 is an integral tubular structure preferably constructed of surgical steel, although any suitable material can be used, and includes a shapedengagement structure 38 integrally formed at thedistal end 36 and one or moreannular grooves 37 spaced along its length. Theengagement structure 38 which preferably has a hexagonal configuration facilitates the mating and rotational engagement of thebone screw 20 with the driver as will be described and thegrooves 37 may be used as attachment sites for conventional clamp members during a bone fixation procedure. It will be appreciated that theengagement structure 38 may take any angular configuration such as square, octagonal or the like and can alternatively engage the outer periphery of the screw head. - The
handle 28 has a throughgoing bore 39 to receive theproximal end 34 of theshaft member 26 and is preferably constructed of wood or plastic. Thehandle 28 is secured to theshaft member 26 by securing the handle sections together withconventional rivets 39 or by other suitable means. The rivets do not extend into or through the bore of theshaft member 26. Alternatively, thehandle member 28 may be removably mounted to theshaft member 26. - The
rod 30 is an integral, solid, generally cylindrical structure preferably constructed of surgical or high grade steel and is provided with a threadedsection 42 at its distal end and a machined recess or well 44 near its proximal end which receives setscrew 47. Thecap member 32 is a generally cylindrical structure that has ablind bore 43 to receive the proximal end of therod 30 and a cylindrical, internally threadedpassage 45 which extends from a side surface of thecap member 32 into the blind bore 43 to permit the passage of aconventional set screw 47 having an Allen head. A conical end portion of the Allen set screw is received within the well 44 in therod 30 to lock thecap member 32 to therod 30. The outer surface ofcap 32 is knurled at 33 to allow thecap 32 andsecured rod 30 to be rotated withinbore 27 of theshaft 26 so that threadedend 42 can be screwed into theinner thread 58 of the cannulatedbone screw 20. - The outer diameter of the
cylindrical rod 30 is less than the inner diameter of the cylindrical bore 27 in theshaft member 26 so that therod 30 can be easily received therein and pass therethrough. Conversely the threadedend section 42 has threads with an outer diameter greater than the outer diameter ofbore 27 so thatrod 30 cannot be pulled through thebore 27 of theshaft 26. When thecap member 32 is releaseably locked to the proximal end of therod 30,cap member 32 prevents a portion of the proximal end of therod 30 from entering thecannula 27 of theshaft member 26. As best seen in FIG. 3, therod 30 is longer than theshaft member 26 so that when thecap member 32 is mounted on therod 30 and therod 30 is disposed within the cannula or bore 27 of theshaft member 26, the threadedsection 42 of therod 30 extends a predetermined length beyond thedistal end 36 of theshaft member 26 to threadedly engage the internal threading 58 of thebone screw 20. - The cannulated, internally threaded
bone screw 20 shown in cross-section in FIG. 3 is mounted on thedriver device 22 and is also shown in FIGS. 4 and 6. Thebone screw 20 is an integral structure preferably made of surgical steel and includes ashank 46, ahead 48 and atip portion 50. Theshank 46 of thebone screw 20 has anexternal thread 52 which is helically formed thereabout, and extends from thehead 48 to thetip portion 50. Thehead 48 has a generally larger outer diameter than theshank 46 and defines a hexagonal shapedrecess 49 so that the bone screw can receive torque from theengagement structure 38 and apply a compressive force to a bone surface or to retain a bone plate against a bone for fracture fixation. The exterior surface of the tip portion is tapered and provided with a plurality offlutes 54 so that the bone screw is self drilling. The plurality offlutes 54 extend proximally longitudinally from thetip portion 50 and may extend into theshank 46. - A throughgoing internal bore or
cannula 56 extends from thehead 48 through theshank 46 to thetip portion 50 and is provided with aninternal thread 58, preferably throughout its length. As best seen in FIG. 5, arecess 49 shaped to receive theshaft engagement head 38 is formed in thehead 48 of thebone screw 20. This recess is axially aligned with thecannula 56. The walls of therecess 49 have a hexagonal cross-section and define an engagement recess portion of thebone screw 20. As shown in FIG. 1, theengagement structure 38 of thedriver device 22 is formed by a hexagonal configuration on the distal end of theshaft 26 and is dimensioned to be received within therecess 49 formed in the head of thebone screw 20 to rotatably engage the bone screw and the driver. It is understood that this structure is exemplary only and that the engagement portion of the bone screw may also be formed on the outer periphery of the head portion. - The method of bone fixation and reduction of the present invention can be performed using a wide range of cannulated, internally threaded bone screws. An alternative embodiment of an internally threaded
bone screw 220 is shown in FIGS. 6 and 7. This embodiment is constructed for use in cancellous bone. The external surface ofbody portion 246 of thebone screw 220 is partially threaded atsection 222 and smooth surfaced or unthreaded atsection 224 and thetip portion 250 is provided with a plurality offlutes 254. Theintegral head 248 has a larger exterior diameter than the body portion and defines ahexagonal recess 249 which seats theshaft engagement end 38 and the internal threading preferably extends the entire length of thebone screw cannula 256. - The internal and exterior threads of the bone screws20 and 220 are preferably formed by machining and the internal thread structures may partially or fully cover the wall of the respective interior bores of the bone screws 20, 220. Each the bone screws 20 and 220 is self-drilling and self-tapping.
- The
bone screw 20 anddriver device 22 can be assembled using therod 30 andcap member 32 as shown, for example, in FIGS. 1-3, to form a bone reduction andfixation assembly 60 which can be used to effect bone fraction reduction and fixation. - The
engagement structure 38 of theshaft member 26 and theengagement seat 49 of thebone screw 20 are of complimentary size and shape so that theengagement structure 38 can be snugly received within theengagement seat 49 of thebone screw 20 to rotationally lock thedriver device 22 with thebone screw 20. When thedriver device 22 andbone screw 20 are so engaged, the throughgoing bore 27 of theshaft member 26 is axially aligned with the internally threaded bore 56 of thebone screw 20. Therod 30 is used to releasably axially secure thebone screw 20 to thedriver device 22 by securing thecap member 32 on therod 30 by tightening theAllen set screw 47 into therecess 44 of the rod member. The threadedsection 42 of therod 30 is threaded on theinternal thread 58 projecting from theinternal bore 56 of thebone screw 20 and therod 30 is rotated by manually manipulating thecap member 32 until thebone screw 20 is tightly axially releaseably interlocked to thedriver device 22. Reverse rotation will of course unlock thedriver device 22 andbone screw 20. - This configuration is best seen in FIGS. 2 and 3. When thus rotationally and axially releasably interlocked, the
driver device 22 and thebone screw 20 form a single assembly which is referred to as the bone reduction and fixation assembly and is generally designated by thereference numeral 60 as shown in FIG. 3. Because thebone screw 20 anddriver device 22 are tightly held together by thesteel rod 30, theassembly 60 does more than maintain the bone screw in engagement with the driver to facilitate screw positioning and the driving insertion thereof into cortical or cancellous bone. This rigid engagement allows the surgeon to manually manipulate the fractured bones to reduce the fracture after the screw (or screws) has been inserted (See FIG. 8) and permits fracture fixation after the fracture has been reduced through conventional bone clamps mounted betweenadjacent assemblies 60. - FIG. 8 shows an example of how an internally threaded bone screw can be used as a fracture reduction device at a
fracture site 66 in abone 68. In this example thefracture 66 has separated thebone 68 into twoportions fixation assemblies bone portions fracture site 66. The description for insertion of abone screw assembly 60 a; it being understood thatbone screw 60 b is inserted in the same way. - A guide hole (not shown) is formed in the cortical portion of the
bone fragment 68 a proximate thefracture site 66. A smooth surgical guide wire or K-wire is inserted in the guide hole. A conventional cannulated surgical drill, optionally used in conjunction with a conventional drill guide, may be used to form a guide hole. The conventional surgical guide wire or K-wire may be inserted in the guide hole through the cannula of the drill before the same is removed therefrom, leaving the guide wire in place. - With the smooth guide wire in place within the guide hole, the cannulated, internally threaded
bone screw 20 is inserted over the guide wire with the cannulateddriver device 22 to engage two cortices of bone. The threadedrod 30 and thecap member 32 have not been mounted on the cannulated driving device when the guide wire is used to guide the bone screw and driver to the guide hole. After thebone screw 20 is driven into the bone using thedriver device 22 the smooth guide wire is removed leaving the bone screw in thebone portion 68 a. Theengagement end 38 of thedriver device 22 is interengaged with the recess orseat 49 of thebone screw 20 and the externally threadedrod 30 is rotated and tightened into the internal thread of the cannulated screw by manually rotating thecap member 32. - The
bone screw 20 anddriver device 22 are thus locked together to form the bone reduction andfixation assembly 60 a. As shown in FIG. 8, asecond assembly 60 b can be secured to thebone portion 68 b using a second internally threadedbone screw 20 b by repeating this procedure. The surgeon can then manipulate thebone portions handle members fracture 66 manually. - FIG. 9 shows that the internally threaded bone reduction screw can be applied through a conventional
bone fixation plate 76 which is shown in place over thefracture site 66. When the cannulated, internally threadedbone screw 20 is used with aconventional fixation plate 76, typically at least one of the bone screws 20 a or 20 b is inserted through anelongated slot 77 in the plate so that thebone portions fracture 66 before theplate 76 is firmly fastened on the bone portions. - FIG. 10 shows that when the
bone fracture 66 has been appropriately aligned and reduced by theassemblies shaft members assemblies bone segments handles assemblies shaft member 26 with conventional rivets, it is within the scope of the invention to provide aremovable handle 28 on eachassembly 60 so that the handles can be removed after the external fixator cross bars 70 have been mounted therebetween to hold the fractured bone together. - The external fixator cross bars70 are conventional and the structure thereof and the method of mounting the same is well known. Conventional devices such as the cross bars 70 typically are comprised of a rigid central bar structure and a conventional clamping device mounted on each end of the bar structure and are well known in the art. Any conventionally known clamping device or cross bar can be used with the
assemblies 60 to form an external fixator. - The firm fixation of the
inventive bone screw 20 is superior to Schantz screws or other types of external fixation pins and should result in decreased incidence of pin loosening. - The external fixation device can be easily removed in one step by loosening the
bone screw 20 with thedriver device 22. - FIG. 11 shows a plurality of internally threaded bone screws20 cooperating to form a fixation site to receive and support a
conventional bone plate 78. The cortical bone screws 20 are inserted in thebone portions surgical screws 80 which extend through the slots orcylindrical apertures 79 formed in thebone plate 78. The top surfaces of the heads of the bone screws 20 form support surfaces to support thebone plate 78. - The
bone plate 78 may be affixed to thebone 68 by forming a series appropriately aligned and appropriately directed guide holes in thebone portions bone screw 20 is placed therein using a K-wire as previously described. Two or more reduction andfixation assemblies 60 may be used in the manner described above to manually reduce the fracture before the conventional plate is applied. When the desired number of bone screws 20 are placed in the bone fragments 68 a, 68 b, thebone plate 78 is placed on the heads of the bone screws which have flat or other appropriately shaped surfaces thereon to support thebone plate 78. - In the example illustrated in FIG. 11, the
top surfaces 82 of the bone screws 20 are planar and the screws have been placed in the bone such that thetop surfaces 82 are essentially coplanar. The bone screws 20 are aligned to coincide with the apertures in thebone plate 78. Thesurgical screws 80 are screwed into the internal threading of the bone screws 20 to secure the plate to thefracture site 66. - It is clear from the forgoing that the machined internal threading of the self-drilling, self-tapping cannulated screw described herein, provides the orthopedic surgeon with many ways to effect fracture reduction and fixation. The threaded
rod 30 can be used with a cannulated driving device, including many conventional cannulated driving devices, to form a fracture fixation andreduction assembly 60 of the invention. - When the
bone screw 20 anddriver device 22 are secured together to form theassembly 60, this fixed assembly can be used as a fracture reduction tool to assist in aligning fractures of bone. Theassembly 60 can also be used to apply traction to a fracture site. The screw can be inserted directly into bone or through a conventional fixation plate. - In addition to this use in internal fixation of fractures of the bone, the
assembly 60 can be used as an external fixation device for bone fractures. Once the fracture is reduced, the handle of thedriver device 22 may be removed and crossbars 70 may be attached to theshaft member 26 converting theassembly 60 to an external fixator device. - The internally threaded screw can be used independently as a bone fixation screw. The internal threads may be used to apply optional devices such a screws, plates or rods for other fixation purposes. It is understood that the bone screws shown herein are exemplary only and not intended to be limiting. One skilled in art will appreciate that the internally threaded cannulated screws can be manufactured in various shapes and sizes and that the internal threads may partially or fully encompass the length of the bone screws.
- In the foregoing description, the invention has been described with reference to a particular preferred embodiment, although it is to be understood that specific details shown are merely illustrative, and the invention may be carried out in other ways without departing from the true spirit and scope of the following claims:
Claims (26)
1. A cannulated torque receiving bone screw comprising:
an elongated cylindrical shank defining a throughgoing cylindrical bore and having a proximal end, a head integrally formed at the proximal end, a distal end, and an outer surface, an engagement structure defined by said head is shaped to receive and rotatably engage a driver having a shape complimentary to the shape of the engagement structure; an external thread is formed on said shank outer surface and an internal thread is formed on a surface defining said inner cylindrical bore.
2. A cannulated torque receiving bone screw as claimed in claim 1 wherein said head defines a geometrically shaped recess which is axially aligned with said throughgoing bore.
3. A cannulated torque receiving bone screw as claimed in claim 2 wherein said head has a planar surface.
4. A cannulated torque receiving bone screw as claimed in claim 1 wherein said distal end defines a plurality of flutes.
5. A cannulated torque receiving bone screw as claimed in claim 1 wherein an outer periphery of said head defines an engagement structure.
6. A cannulated torque receiving bone screw as claimed in claim 1 wherein said external thread formed on the outer surface of said shank extends the length of said shank.
7. A cannulated torque receiving bone screw as claimed in claim 1 wherein said external thread formed on the outer surface of said shank extends along a section of said shank and the rest of the outer surface is unthreaded.
8. A cannulated torque receiving bone screw as claimed in claim 1 wherein said internal thread formed on a surface defining the bore of said shank extends the length of said bore.
9. A cannulated torque receiving bone screw as claimed in claim 1 wherein a plurality of flutes extend distally from said tip portion at least partially into said outer surface of said body portion and said external thread structure.
10. A combination bone screw and driver assembly for driving a cannulated internally threaded bonescrew, comprising:
a bonescrew with an elongated cylindrical shank having a proximal end, a distal end, an outer surface; a head integrally formed at the proximal end and a tip portion formed at the distal end; a cannula extending through said head and shank defining an inner throughgoing cylindrical bore; an engagement structure formed in said head shaped to receive and rotatably engage a driver having a shape complimentary to the shape of the engagement structure; an external thread formed on said shank outer surface and an internal thread formed on a surface defining said inner cylindrical bore;
said driver comprising a shaft member defining an internal throughgoing cannula and an engagement structure formed at the distal end of said shaft member to engage the shaft member to a complimentary engagement structure formed in said head of the cannulated internally threaded screw;
a handle member mounted to the proximal end of said shaft member;
a rod removably mounted within said shaft member cannula, said rod having a length which is greater than the length of the shaft member, and an outer diameter which is less than the inner diameter of said shaft member cannula, said rod defining a thread portion formed at one end which can be threaded along the internal thread of said bone screw; and
a cap member removably mounted on the other end of said rod to apply torque to said rod and retain said rod within said shaft member when a said bone screw is threadedly engaged on the one end of said rod.
11. A combination bone screw and driver assembly as claimed in claim 10 wherein said handle member has two sections, each of which defines a longitudinal groove which when aligned form a bore to receive the proximal end of said shaft member.
12. A combination bone screw and driver assembly as claimed in claim 10 wherein said handle member has a unitary body which defines a longitudinal bore allowing the the proximal end of said shaft member to be mounted therein.
13. A combination bone screw and driver assembly as claimed in claim 10 wherein said rod thread portion has a greater diameter than the shaft member cannula.
14. A combination bone screw and driver assembly as claimed in claim 10 wherein said shaft member defines at least one annular groove along its length.
15. A combination bone screw and driver assembly as claimed in claim 10 further comprising a release member mounted in said cap member, said release member being movable between a released position and a locked position so that the cap member is selectively rigidly secured to said rod member when the release member is in the locked position and removable from said rod member when the release member is in the released position.
16. A combination bone screw and driver assembly as claimed in claim 10 wherein said release member is a set screw with a Allen head.
17. A combination bone screw and driver assembly as claimed in claim 10 wherein said cap member is cylindrical and knurled on the outside surface.
18. A combination bone screw and driver assembly as claimed in claim 15 wherein said rod includes a well formed at the proximal end thereof which well cooperates with said release member to releaseably lock the cap member to the rod.
19. A combination bone screw and driver assembly for driving a cannulated internally threaded bonescrew, comprising:
a bonescrew with an elongated cylindrical shank having a proximal end, a distal end, an outer surface; a head integrally formed at the proximal end and a tip portion formed at the distal end; a cannula extending through said head and shank defining an inner throughgoing cylindrical bore; an engagement structure formed in said head shaped to receive and rotatably engage a driver having an engagement structure with a shape complimentary to the shape of the engagement structure; an external thread formed on said shank outer surface and an internal thread formed on a surface defining said inner cylindrical bore running the length of said cylindrical bore;
said driver comprising a shaft member defining an internal throughgoing cannula and an engagement structure formed at the distal end of said shaft member to engage the shaft member to a complimentary engagement structure formed on the cannulated internally threaded screw; said shaft member additionally defining at least one annular groove along its outer surface;
a removable handle member mounted to the proximal end of said shaft member;
a rod movably disposed within said shaft member cannula, said rod having a length which is greater than the length of the shaft member, and a section with an outer diameter which is less than the diameter of said shaft member cannula, said rod defining a thread portion formed at one end having a thread outer diameter which is greater than the diameter of said shaft member cannula and which can be threaded along the internal thread of said bone screw; and
a cap member removably mounted on the other end of said rod to retain said rod member within said shaft member when a bone screw is threadedly engaged with the thread portion of said rod.
20. A method for the reduction and fixation of a fractured bone, comprising the steps of:
a) drilling a plurality of bores in different bone sections of a fractured bone site;
b) driving bone screws into respective bores of said different sections of a fractured bone with a driver device;
each of said driving devices comprising;
a shaft member having a throughgoing cannula and an first engagement structure formed at a distal end;
a handle member mounted at the proximal end of said shaft member,
a rod member having a length greater than the length of the shaft member slidably disposed within and removable from the cannula of the shaft member; and
a cap member secured to said proximal end of said rod member;
each of said bone screws comprising;
a shank with a throughgoing cannular, a head portion integrally formed at the proximal end of said shank defining an engagement structure for said shaft member engagement structure;
an exterior thread formed on the exterior surface of said shank;
an interior thread formed on an interior surface of said shank defining said cannula;
c) securing the driving devices to respective bone screws to form a first and a second bone fixation and reduction assembly;
d) moving the first and second bone fixation and reduction assemblies toward each other transporting the sections of fractured bone to reduce the fracture; and
e) clamping the first and second bone fixation and reduction assemblies together to effect fixation of the fractured bone.
21. A method for the reduction and fixation of a fractured bone as claimed in claim 20 including the steps of:
guiding a bone screw and an associated driving device with the rod member removed into a first guide hole in a bone portion of the fractured bone with a guide wire;
removing the guide wire from the first bone screw and from the first driving device; and
placing a rod of the first driving device into the cannula thereof and rotating the cap member to secure the first driving device to the bone screw.
22. A method for the reduction and fixation of a fractured bone as claimed in claim 20 wherein
the distal threaded end of each rod member threadably engages the interior thread of the associated bone screw; and
the cap member is rotated to tighten the shaft member to the bone screw.
23. A method for the reduction and fixation of a fractured bone as claimed in claim 20 including a step after step a) of: placing a planar bone plate with a plurality of elongated slots over the fracture site so that the slots overlie the bores in adjacent bone sections; and replacement of step (e) with the step of securing the first and second bone fixation assemblies in the bone plate.
24. A method for the reduction and fixation of a fractured bone with a bone plate comprising the steps of:
assembling a plurality of driving devices, a bone plate, a plurality of bone screws, a plurality of secondary screw members and a guide wire,
each driving device comprising;
a shaft member defining a cannula from the proximal end to the distal end and an engagement structure at the distal end;
a handle member removably mounted at the proximal end of said shaft member;
a rod member mounted within the cannula of said shaft member, said rod being provided with a threaded portion at the distal end; and
a rotatable cap member releaseably secured to said proximal end;
each bone screw comprising;
a shaft body with an integral head and a cannula formed in said body leading from the head to the distal end;
an external thread formed-on an exterior surface of said body and an interior thread formed on an interior surface defining said cannula; and
an engagement structure formed on said head;
said bone plate comprising;
an essentially planar base member with a plurality of elongated slots formed therein;
placing the bone plate adjacent the fracture site with the slots positioned over bores
drilled in bone sections of said fracture site;
guiding a bone screw through a first slot on the bone plate into a bore and driving the first bone screw into a first section of a fractured bone;
guiding a second bone screw through a second slot on the bone plate into another bore and driving the second bone screw into a second section of a fractured bone;
securing a first and a second bone screw-driving device assembly to the first and second bone screws, respectively;
applying force to the first and second bone screw-driving device assemblies to reduce the fracture; and
tightening the first and second bone screws to effect the fixation of the fracture site.
25. The method of claim 24 for the repair of a fractured bone further comprising the step of clamping said first bone screw driving assembly to said second bone screw driving assembly to effect fixation of the fracture site.
26. The method of claim 24 for the repair of a fractured bone wherein each bone reduction and fixation assembly is provided with a removable handle and wherein the method further comprises the step of:
connecting a plurality of rods to said first bone screw driving assembly and said second bone screw driving assembly to effect fixation of the fracture site.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
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US10/154,923 US20020169453A1 (en) | 1998-08-07 | 2002-05-28 | Cannulated internally threaded bone screw |
US10/357,390 US6981974B2 (en) | 1998-08-07 | 2003-02-04 | Cannulated internally threaded bone screw with aperatured insert |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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US09/130,374 US6436100B1 (en) | 1998-08-07 | 1998-08-07 | Cannulated internally threaded bone screw and reduction driver device |
US10/154,923 US20020169453A1 (en) | 1998-08-07 | 2002-05-28 | Cannulated internally threaded bone screw |
Related Parent Applications (2)
Application Number | Title | Priority Date | Filing Date |
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US09130394 Continuation | 1998-08-06 | ||
US09/130,374 Continuation US6436100B1 (en) | 1998-08-07 | 1998-08-07 | Cannulated internally threaded bone screw and reduction driver device |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US10/357,390 Continuation-In-Part US6981974B2 (en) | 1998-08-07 | 2003-02-04 | Cannulated internally threaded bone screw with aperatured insert |
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US20020169453A1 true US20020169453A1 (en) | 2002-11-14 |
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ID=22444400
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Application Number | Title | Priority Date | Filing Date |
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US09/130,374 Expired - Lifetime US6436100B1 (en) | 1998-08-07 | 1998-08-07 | Cannulated internally threaded bone screw and reduction driver device |
US10/154,923 Abandoned US20020169453A1 (en) | 1998-08-07 | 2002-05-28 | Cannulated internally threaded bone screw |
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Application Number | Title | Priority Date | Filing Date |
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US09/130,374 Expired - Lifetime US6436100B1 (en) | 1998-08-07 | 1998-08-07 | Cannulated internally threaded bone screw and reduction driver device |
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Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20030093082A1 (en) * | 2000-06-26 | 2003-05-15 | Stryker Spine | Bone screw retaining system |
US20040133207A1 (en) * | 2002-10-11 | 2004-07-08 | Abdou M. Samy | Distraction screw for skeletal surgery and method of use |
US20040153092A1 (en) * | 2001-01-19 | 2004-08-05 | Aesculap Ag & Co. Kg | Locking mechanism for a bone screw |
US20050143732A1 (en) * | 2003-10-24 | 2005-06-30 | Shane Burch | Bone treatment instrument and method |
US20050273102A1 (en) * | 2004-06-02 | 2005-12-08 | Sean Powell | Implant assembly device |
US20070299448A1 (en) * | 2006-06-07 | 2007-12-27 | Spinefrontier Lls | Methods and devices for static or dynamic spine stabilization |
US20080015632A1 (en) * | 2006-07-14 | 2008-01-17 | Stryker Trauma Gmbh | Device, kit, and a method for handling a medical implant |
US20080058810A1 (en) * | 2003-01-10 | 2008-03-06 | Abdou M S | Bone screw systems and methods of use |
US20090018589A1 (en) * | 2007-07-13 | 2009-01-15 | Smisson Iii Hugh F | Bone Screw |
US20090198289A1 (en) * | 2008-02-02 | 2009-08-06 | Manderson Easton L | Fortified cannulated screw |
US7717945B2 (en) | 2002-07-22 | 2010-05-18 | Acumed Llc | Orthopedic systems |
US7766920B2 (en) | 2003-11-26 | 2010-08-03 | Synthes Usa, Llc | Cannulated fastener system |
US20100241124A1 (en) * | 2009-03-18 | 2010-09-23 | Smith & Nephew, Inc. | Soft Tissue Manipulator Assembly |
US20100324556A1 (en) * | 2008-06-24 | 2010-12-23 | Jeff Tyber | Fixation system, an intramedullary fixation assembly and method of use |
US20110202059A1 (en) * | 2006-11-17 | 2011-08-18 | Webb Lawrence X | External fixation assembly and method of use |
WO2011060082A3 (en) * | 2009-11-10 | 2011-09-29 | Smith & Nephew, Inc. | Controlling bone compression |
US20120197311A1 (en) * | 2010-07-20 | 2012-08-02 | X-Spine Systems, Inc. | Minimally invasive spinal facet compression screw and system for bone joint fusion and fixation |
US8257407B2 (en) * | 2008-04-23 | 2012-09-04 | Aryan Henry E | Bone plate system and method |
US8303589B2 (en) | 2008-06-24 | 2012-11-06 | Extremity Medical Llc | Fixation system, an intramedullary fixation assembly and method of use |
US8308776B2 (en) | 2005-02-18 | 2012-11-13 | Samy Abdou | Devices and methods for dynamic fixation of skeletal structure |
US8313487B2 (en) | 2008-06-24 | 2012-11-20 | Extremity Medical Llc | Fixation system, an intramedullary fixation assembly and method of use |
US8343199B2 (en) | 2008-06-24 | 2013-01-01 | Extremity Medical, Llc | Intramedullary fixation screw, a fixation system, and method of fixation of the subtalar joint |
US20130310842A1 (en) * | 2012-05-15 | 2013-11-21 | Tobias Winkler | Installation tool for bone screw |
US8628537B2 (en) | 2004-04-06 | 2014-01-14 | DePuy Synthes Products, LLC | Adjustable tool for cannulated fasteners |
WO2014137679A1 (en) * | 2013-03-07 | 2014-09-12 | Warsaw Orthopedic, Inc. | Surgical implant system and method |
US20140324077A1 (en) * | 2007-12-13 | 2014-10-30 | Smith & Nephew, Inc. | Anchoring system |
US8876874B2 (en) | 2006-08-21 | 2014-11-04 | M. Samy Abdou | Bone screw systems and methods of use |
US8992587B2 (en) | 2010-07-20 | 2015-03-31 | X-Spine Systems, Inc. | Spinal facet compression screw with variable pitch thread zones and buttress head |
US9011505B2 (en) | 2009-02-09 | 2015-04-21 | Memometal Technologies | Screw for osteosynthesis and arthrodesis |
US9017329B2 (en) | 2008-06-24 | 2015-04-28 | Extremity Medical, Llc | Intramedullary fixation assembly and method of use |
US9044282B2 (en) | 2008-06-24 | 2015-06-02 | Extremity Medical Llc | Intraosseous intramedullary fixation assembly and method of use |
US9155580B2 (en) | 2011-08-25 | 2015-10-13 | Medos International Sarl | Multi-threaded cannulated bone anchors |
US9265548B2 (en) | 2008-10-30 | 2016-02-23 | DePuy Synthes Products, Inc. | Systems and methods for delivering bone cement to a bone anchor |
US9289220B2 (en) | 2008-06-24 | 2016-03-22 | Extremity Medical Llc | Intramedullary fixation assembly and method of use |
WO2016085759A1 (en) * | 2014-11-26 | 2016-06-02 | Ex Technology, Llc | Method and apparatus for joint fusion |
US9408646B2 (en) | 2003-09-03 | 2016-08-09 | DePuy Synthes Products, Inc. | Bone plate with captive clips |
US9414870B2 (en) | 2003-09-03 | 2016-08-16 | DePuy Synthes Products, Inc. | Translatable carriage fixation system |
US9867714B1 (en) | 2011-09-23 | 2018-01-16 | Samy Abdou | Spinal fixation devices and methods of use |
US10111757B2 (en) | 2012-10-22 | 2018-10-30 | Cogent Spine, LLC | Devices and methods for spinal stabilization and instrumentation |
US10188378B2 (en) | 2013-03-06 | 2019-01-29 | Smith & Nephew, Inc. | Microanchor |
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US11627998B2 (en) | 2020-12-11 | 2023-04-18 | Warsaw Orthopedic, Inc. | Head position and driver combination instrument |
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US11957391B2 (en) | 2021-11-01 | 2024-04-16 | Warsaw Orthopedic, Inc. | Bone screw having an overmold of a shank |
Families Citing this family (105)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6280472B1 (en) | 1997-07-23 | 2001-08-28 | Arthrotek, Inc. | Apparatus and method for tibial fixation of soft tissue |
US6752830B1 (en) * | 1999-07-20 | 2004-06-22 | Ethicon, Inc. | Apparatus and method for reconstructing a ligament |
WO2001023027A1 (en) * | 1999-09-27 | 2001-04-05 | Essex Technology, Inc. | Rotate-to-advance catheterization system |
ATE318122T1 (en) * | 1999-11-15 | 2006-03-15 | Arthrex Inc | TAPERING BIOABSORBENT INTERFERENCE SCREW FOR OSTEAL FIXING OF BANDS |
WO2001062172A1 (en) * | 2000-02-23 | 2001-08-30 | Ethicon, Inc. | Apparatus and method for reconstructing a ligament |
DE10011678B4 (en) * | 2000-03-10 | 2007-07-26 | Richard Wolf Gmbh | Surgical instrument for applying implants |
US20050209592A1 (en) * | 2000-05-11 | 2005-09-22 | Fridolin Schlapfer | Plug-type connection for releasably connecting two bodies |
CA2413814A1 (en) * | 2000-05-11 | 2002-12-12 | Synthes (U.S.A.) | Push-connection for the detachable connection of two bodies, in particular a pedicle screw and a screwdriver |
ES2378608T3 (en) * | 2000-12-22 | 2012-04-16 | Tyco Healthcare Group Lp | Suture screw |
US6599290B2 (en) * | 2001-04-17 | 2003-07-29 | Ebi, L.P. | Anterior cervical plating system and associated method |
US7520898B2 (en) | 2001-10-01 | 2009-04-21 | Scandius Biomedical, Inc. | Apparatus and method for reconstructing a ligament |
US6827722B1 (en) * | 2001-12-11 | 2004-12-07 | Biomet, Inc. | Method and apparatus for use of a guide wire capturing surgical instrument |
US20040092952A1 (en) * | 2002-08-02 | 2004-05-13 | Peter Newton | Screw placement guide |
US8105367B2 (en) | 2003-09-29 | 2012-01-31 | Smith & Nephew, Inc. | Bone plate and bone plate assemblies including polyaxial fasteners |
US7207995B1 (en) | 2004-01-29 | 2007-04-24 | Biomer Manufacturing Corp. | Method and apparatus for retaining a guide wire |
US8728132B2 (en) * | 2004-04-20 | 2014-05-20 | James L. Chappuis | Internal pedicle insulator apparatus and method of use |
US7175626B2 (en) * | 2004-06-15 | 2007-02-13 | Board Of Regents Of The University Of Nebraska | Dynamic compression device and driving tool |
US20060058788A1 (en) * | 2004-08-27 | 2006-03-16 | Hammer Michael A | Multi-axial connection system |
US8951290B2 (en) * | 2004-08-27 | 2015-02-10 | Blackstone Medical, Inc. | Multi-axial connection system |
US8062339B2 (en) * | 2004-08-27 | 2011-11-22 | Blackstone Medical, Inc. | Multi-axial connection system |
US7794452B2 (en) * | 2004-10-18 | 2010-09-14 | Warsaw Orthopedic, Inc. | Device and method for positioning and attaching a member such as an implant or jig |
US8394130B2 (en) | 2005-03-17 | 2013-03-12 | Biomet C.V. | Modular fracture fixation system |
US20060149264A1 (en) * | 2004-12-20 | 2006-07-06 | Castaneda Javier E | Screw locking systems for bone plates |
WO2006069089A2 (en) | 2004-12-21 | 2006-06-29 | Packaging Service Corporation Of Kentucky | Cervical plate system |
WO2006093976A1 (en) * | 2005-02-28 | 2006-09-08 | Spirus Medical Inc. | Rotate-to-advance catheterization system |
AU2006223357A1 (en) * | 2005-03-10 | 2006-09-21 | Tyco Healthcare Group Lp | Suture anchors |
DE102005014546B4 (en) * | 2005-03-30 | 2010-07-08 | Königsee Implantate und Instrumente zur Osteosynthese GmbH | Large fragment plate and adapter for a large fragment plate |
US8414477B2 (en) | 2005-05-04 | 2013-04-09 | Olympus Endo Technology America Inc. | Rotate-to-advance catheterization system |
US7780650B2 (en) | 2005-05-04 | 2010-08-24 | Spirus Medical, Inc. | Rotate-to-advance catheterization system |
US8317678B2 (en) | 2005-05-04 | 2012-11-27 | Olympus Endo Technology America Inc. | Rotate-to-advance catheterization system |
US8235942B2 (en) | 2005-05-04 | 2012-08-07 | Olympus Endo Technology America Inc. | Rotate-to-advance catheterization system |
US8343040B2 (en) | 2005-05-04 | 2013-01-01 | Olympus Endo Technology America Inc. | Rotate-to-advance catheterization system |
EP1919385B1 (en) | 2005-07-25 | 2014-08-20 | Smith & Nephew, Inc. | Polyaxial plates |
US8382807B2 (en) | 2005-07-25 | 2013-02-26 | Smith & Nephew, Inc. | Systems and methods for using polyaxial plates |
US20070043379A1 (en) * | 2005-08-04 | 2007-02-22 | Medtronic, Inc. | Bone screw/driver assembly and method |
US8343165B2 (en) * | 2005-09-26 | 2013-01-01 | Pioneer Surgical Technology, Inc. | Apparatus and method for implantation of surgical devices |
US8435229B2 (en) | 2006-02-28 | 2013-05-07 | Olympus Endo Technology America Inc. | Rotate-to-advance catheterization system |
US8574220B2 (en) | 2006-02-28 | 2013-11-05 | Olympus Endo Technology America Inc. | Rotate-to-advance catheterization system |
US20070213730A1 (en) * | 2006-03-09 | 2007-09-13 | Jonathan Martinek | Cannulated suture anchor system |
US8114128B2 (en) * | 2006-11-01 | 2012-02-14 | Depuy Mitek, Inc. | Cannulated suture anchor |
US20080147128A1 (en) * | 2006-12-15 | 2008-06-19 | Zimmer Technology, Inc. | Cannulated bone screw and cannulated driver for the implantation thereof |
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 |
US8197518B2 (en) | 2007-05-16 | 2012-06-12 | Ortho Innovations, Llc | Thread-thru polyaxial pedicle screw system |
US7947065B2 (en) | 2008-11-14 | 2011-05-24 | Ortho Innovations, Llc | Locking polyaxial ball and socket fastener |
US7942909B2 (en) * | 2009-08-13 | 2011-05-17 | Ortho Innovations, Llc | Thread-thru polyaxial pedicle screw system |
US7951173B2 (en) | 2007-05-16 | 2011-05-31 | Ortho Innovations, Llc | Pedicle screw implant system |
US8870755B2 (en) | 2007-05-18 | 2014-10-28 | Olympus Endo Technology America Inc. | Rotate-to-advance catheterization system |
US7981116B2 (en) * | 2007-05-25 | 2011-07-19 | Custom Spine, Inc. | Radiolucent screwdriver for orthopedic surgery |
US8882801B2 (en) | 2007-09-14 | 2014-11-11 | Depuy Mitek, Llc | Dual thread cannulated suture anchor |
US8702754B2 (en) | 2007-09-14 | 2014-04-22 | Depuy Mitek, Llc | Methods for anchoring suture to bone |
US20090275994A1 (en) * | 2008-04-30 | 2009-11-05 | Phan Christopher U | Apparatus and methods for inserting facet screws |
US8425573B2 (en) * | 2008-10-24 | 2013-04-23 | The Cleveland Clinic Foundation | Method and system for attaching a plate to a bone |
US8075603B2 (en) | 2008-11-14 | 2011-12-13 | Ortho Innovations, Llc | Locking polyaxial ball and socket fastener |
US9089377B2 (en) | 2009-02-23 | 2015-07-28 | Orthopediatrics Corp. | Bone screw |
US8911474B2 (en) | 2009-07-16 | 2014-12-16 | Howmedica Osteonics Corp. | Suture anchor implantation instrumentation system |
US9232954B2 (en) | 2009-08-20 | 2016-01-12 | Howmedica Osteonics Corp. | Flexible ACL instrumentation, kit and method |
US8574273B2 (en) | 2009-09-09 | 2013-11-05 | Innovision, Inc. | Bone screws and methods of use thereof |
WO2011054122A1 (en) * | 2009-11-09 | 2011-05-12 | Spinewelding Ag | Medical device, apparatus, and surgical method |
WO2011153455A2 (en) | 2010-06-04 | 2011-12-08 | The University Of North Carolina At Chapel Hill | Screw holder-driver apparatuses, systems and methods |
WO2012030712A1 (en) | 2010-08-30 | 2012-03-08 | Zimmer Spine, Inc. | Polyaxial pedicle screw |
FR2968535B1 (en) * | 2010-12-13 | 2012-12-28 | D L P Sarl | SURGICAL INSTRUMENT FOR A TECHNIQUE FOR ATTACHING BONE FRAGMENTS USING CANULATED SCREW |
US8795334B2 (en) | 2011-01-28 | 2014-08-05 | Smith & Nephew, Inc. | Tissue repair |
US9795398B2 (en) | 2011-04-13 | 2017-10-24 | Howmedica Osteonics Corp. | Flexible ACL instrumentation, kit and method |
RU2013158111A (en) | 2011-06-15 | 2015-07-20 | Смит Энд Нефью, Инк. | IMPLANT WITH A VARIABLE ANGLE OF FIXATION |
KR101682891B1 (en) | 2011-06-22 | 2016-12-06 | 신세스 게엠바하 | Ultrasound ct registration for positioning |
US8617176B2 (en) | 2011-08-24 | 2013-12-31 | Depuy Mitek, Llc | Cross pinning guide devices and methods |
US9333069B2 (en) | 2011-10-14 | 2016-05-10 | Biomet Sports Medicine, Llc | Method and apparatus for attaching soft tissue to bone |
US9445803B2 (en) | 2011-11-23 | 2016-09-20 | Howmedica Osteonics Corp. | Filamentary suture anchor |
US9387025B2 (en) * | 2012-04-04 | 2016-07-12 | Smith & Nephew, Inc. | Bone screw and self-retaining driver |
US8821494B2 (en) | 2012-08-03 | 2014-09-02 | Howmedica Osteonics Corp. | Surgical instruments and methods of use |
US8986327B2 (en) | 2012-10-18 | 2015-03-24 | Smith & Nephew, Inc. | Flexible anchor delivery system |
US9078740B2 (en) | 2013-01-21 | 2015-07-14 | Howmedica Osteonics Corp. | Instrumentation and method for positioning and securing a graft |
US9402620B2 (en) | 2013-03-04 | 2016-08-02 | Howmedica Osteonics Corp. | Knotless filamentary fixation devices, assemblies and systems and methods of assembly and use |
US9788826B2 (en) | 2013-03-11 | 2017-10-17 | Howmedica Osteonics Corp. | Filamentary fixation device and assembly and method of assembly, manufacture and use |
JP5510874B1 (en) * | 2013-03-11 | 2014-06-04 | 多摩メディカル有限会社 | Medical screw and jig for removing medical screw |
US9463013B2 (en) | 2013-03-13 | 2016-10-11 | Stryker Corporation | Adjustable continuous filament structure and method of manufacture and use |
AU2014237911B2 (en) | 2013-03-15 | 2018-02-15 | Innovision, Inc. | Bone screws and methods of use thereof |
US9393045B2 (en) * | 2013-03-15 | 2016-07-19 | Biomet Manufacturing, Llc. | Clamping assembly for external fixation system |
US10292694B2 (en) | 2013-04-22 | 2019-05-21 | Pivot Medical, Inc. | Method and apparatus for attaching tissue to bone |
US9453526B2 (en) | 2013-04-30 | 2016-09-27 | Degen Medical, Inc. | Bottom-loading anchor assembly |
KR101599603B1 (en) * | 2013-08-26 | 2016-03-03 | 경북대학교 산학협력단 | Medical inserting apparatus |
US10610211B2 (en) | 2013-12-12 | 2020-04-07 | Howmedica Osteonics Corp. | Filament engagement system and methods of use |
WO2015130604A1 (en) * | 2014-02-25 | 2015-09-03 | Refai Technologies, Llc | Spinal cage device, system, and methods of assembly and use |
US9986992B2 (en) | 2014-10-28 | 2018-06-05 | Stryker Corporation | Suture anchor and associated methods of use |
KR101639887B1 (en) | 2014-11-11 | 2016-07-14 | 경북대학교 산학협력단 | A system for fixing cervical vertebrae and a driver used for an appratus for fixing cervical vertebrae |
KR101608949B1 (en) | 2014-11-19 | 2016-04-04 | 경북대학교 산학협력단 | A system for fixing cervical vertebrae, an appratus for fixing cervical vertebrae and a driver used for an appratus for fixing cervical vertebrae |
US10568616B2 (en) | 2014-12-17 | 2020-02-25 | Howmedica Osteonics Corp. | Instruments and methods of soft tissue fixation |
US11672581B2 (en) | 2020-05-29 | 2023-06-13 | DePuy Synthes Products, Inc. | Powered retaining screwdriver |
US10357314B2 (en) | 2015-07-08 | 2019-07-23 | Stryker European Holdings I, Llc | Instrumentation and method for repair of a bone fracture |
KR101670768B1 (en) | 2015-07-16 | 2016-10-31 | 경북대학교 산학협력단 | Screw anchor assembly |
GB2557840B (en) | 2015-09-18 | 2021-07-21 | Smith & Nephew Inc | Bone plate |
US10874445B2 (en) | 2015-10-13 | 2020-12-29 | Kyungpook National University Industry-Academic Cooperation Foundation | Screw fixing apparatus |
KR101712610B1 (en) | 2015-12-29 | 2017-03-06 | 경북대학교 산학협력단 | A rod connecter |
KR101791004B1 (en) | 2016-06-08 | 2017-10-27 | 경북대학교 산학협력단 | Screw anchor assembly and a method for using the same to pedicle screw instrumentation |
US10492803B2 (en) | 2016-09-22 | 2019-12-03 | Globus Medical, Inc. | Systems and methods for intramedullary nail implantation |
US11083503B2 (en) | 2016-09-22 | 2021-08-10 | Globus Medical, Inc. | Systems and methods for intramedullary nail implantation |
US11918262B2 (en) * | 2017-03-30 | 2024-03-05 | K2M, Inc. | Fixation device and method of using the same |
WO2018223063A1 (en) * | 2017-06-01 | 2018-12-06 | Shawn Burke | Method and system for the reduction and fixation of bone segments |
US10973558B2 (en) | 2017-06-12 | 2021-04-13 | K2M, Inc. | Screw insertion instrument and methods of use |
USD859652S1 (en) * | 2017-06-16 | 2019-09-10 | Karl Storz Se & Co. Kg | Screwdriver for interference screw |
USD902405S1 (en) | 2018-02-22 | 2020-11-17 | Stryker Corporation | Self-punching bone anchor inserter |
US11484351B2 (en) * | 2018-12-20 | 2022-11-01 | Integrity Implants Inc. | Surgical device for insertion of guide wire and pedicle screw |
US11633219B2 (en) | 2019-06-26 | 2023-04-25 | Globus Medical, Inc. | Fenestrated pedicle nail |
CN114617624B (en) * | 2022-03-09 | 2023-05-23 | 四川大学华西医院 | Lifting and resetting auxiliary device for femoral shaft fracture operation |
Citations (35)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US327612A (en) * | 1885-10-06 | Fbank g | ||
US1789060A (en) * | 1928-09-29 | 1931-01-13 | King Scheerer Corp | Bone-fracture clamp |
US2121193A (en) * | 1932-12-21 | 1938-06-21 | Hanicke Paul Gustav Erich | Fracture clamping apparatus |
US2243717A (en) * | 1938-09-20 | 1941-05-27 | Moreira Franciseo Elias Godoy | Surgical device |
US2550866A (en) * | 1946-05-11 | 1951-05-01 | Rosan Joseph | Tool for installing inserts |
US2823574A (en) * | 1954-08-09 | 1958-02-18 | Rosan Joseph | Self-tapping fastener |
US3280874A (en) * | 1965-05-10 | 1966-10-25 | Rosan Eng Corp | Insert with angular flange lock |
US3866509A (en) * | 1973-08-22 | 1975-02-18 | Mite Corp | Self-tapping and self-retaining, screw thread insert |
US4013071A (en) * | 1974-11-11 | 1977-03-22 | Lior Rosenberg | Fasteners particularly useful as orthopedic screws |
US4097061A (en) * | 1976-04-19 | 1978-06-27 | Dietlein Robert W | Ski insert for anchoring a ski binding screw in a ski |
US4115162A (en) * | 1976-09-14 | 1978-09-19 | Siemens Aktiengesellschaft | Process for the production of epitaxial layers on monocrystalline substrates by liquid-phase-slide epitaxy |
US4295765A (en) * | 1979-04-23 | 1981-10-20 | Burke Michael R | Tie-down structure |
US4360012A (en) * | 1980-02-19 | 1982-11-23 | National Research Development Corporation | External fixation devices for orthopaedic fractures |
US4858601A (en) * | 1988-05-27 | 1989-08-22 | Glisson Richard R | Adjustable compression bone screw |
US4878915A (en) * | 1987-01-22 | 1989-11-07 | Brantigan John W | Surgical prosthetic implant facilitating vertebral interbody fusion |
US4950270A (en) * | 1989-02-03 | 1990-08-21 | Boehringer Mannheim Corporation | Cannulated self-tapping bone screw |
US5004421A (en) * | 1990-07-27 | 1991-04-02 | Sargon Lazarof | Dental implant and method of using same |
US5129906A (en) * | 1989-09-08 | 1992-07-14 | Linvatec Corporation | Bioabsorbable tack for joining bodily tissue and in vivo method and apparatus for deploying same |
US5169400A (en) * | 1988-04-02 | 1992-12-08 | Aesculap Ag | Bone screw |
US5217462A (en) * | 1991-03-05 | 1993-06-08 | Pfizer Hospital Products Group, Inc. | Screw and driver |
US5334204A (en) * | 1992-08-03 | 1994-08-02 | Ace Medical Company | Fixation screw |
US5423819A (en) * | 1989-02-06 | 1995-06-13 | American Cyanamid Company | Screw and driver for securing a bone block |
US5431651A (en) * | 1993-02-08 | 1995-07-11 | Goble; E. Marlowe | Cross pin and set screw femoral and tibial fixation method |
US5456267A (en) * | 1994-03-18 | 1995-10-10 | Stark; John G. | Bone marrow harvesting systems and methods and bone biopsy systems and methods |
US5498265A (en) * | 1991-03-05 | 1996-03-12 | Howmedica Inc. | Screw and driver |
US5514138A (en) * | 1991-02-08 | 1996-05-07 | Pfizer Inc. | Connector having a stop member |
US5549677A (en) * | 1991-05-13 | 1996-08-27 | Walter Durr | Implant with pressing surface |
US5584836A (en) * | 1994-04-07 | 1996-12-17 | Smith & Nephew Richards, Inc. | Cannulated medical suture anchor |
US5601553A (en) * | 1994-10-03 | 1997-02-11 | Synthes (U.S.A.) | Locking plate and bone screw |
US5690633A (en) * | 1994-09-23 | 1997-11-25 | Smith & Nephew Richards, Inc. | Orthopedic fracture fixation device |
US5727943A (en) * | 1995-07-18 | 1998-03-17 | Implant Innovations, Inc. | Self-tapping, screw-type dental implant |
US5769852A (en) * | 1993-04-27 | 1998-06-23 | Medevelop Ab | Implantable anchoring element and anchoring assembly for prostheses |
US5964767A (en) * | 1997-09-12 | 1999-10-12 | Tapia; Eduardo Armando | Hollow sealable device for temporary or permanent surgical placement through a bone to provide a passageway into a cavity or internal anatomic site in a mammal |
US5964768A (en) * | 1993-01-21 | 1999-10-12 | Acumed, Inc. | Tapered bone screw with continuously varying pitch |
US5976139A (en) * | 1996-07-17 | 1999-11-02 | Bramlet; Dale G. | Surgical fastener assembly |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2121793A (en) | 1935-07-01 | 1938-06-28 | John C Goshorn | Absorbents for hydrogen sulphide |
US4053982A (en) * | 1976-03-23 | 1977-10-18 | Bernard Weissman | Dental anchor |
-
1998
- 1998-08-07 US US09/130,374 patent/US6436100B1/en not_active Expired - Lifetime
-
2002
- 2002-05-28 US US10/154,923 patent/US20020169453A1/en not_active Abandoned
Patent Citations (35)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US327612A (en) * | 1885-10-06 | Fbank g | ||
US1789060A (en) * | 1928-09-29 | 1931-01-13 | King Scheerer Corp | Bone-fracture clamp |
US2121193A (en) * | 1932-12-21 | 1938-06-21 | Hanicke Paul Gustav Erich | Fracture clamping apparatus |
US2243717A (en) * | 1938-09-20 | 1941-05-27 | Moreira Franciseo Elias Godoy | Surgical device |
US2550866A (en) * | 1946-05-11 | 1951-05-01 | Rosan Joseph | Tool for installing inserts |
US2823574A (en) * | 1954-08-09 | 1958-02-18 | Rosan Joseph | Self-tapping fastener |
US3280874A (en) * | 1965-05-10 | 1966-10-25 | Rosan Eng Corp | Insert with angular flange lock |
US3866509A (en) * | 1973-08-22 | 1975-02-18 | Mite Corp | Self-tapping and self-retaining, screw thread insert |
US4013071A (en) * | 1974-11-11 | 1977-03-22 | Lior Rosenberg | Fasteners particularly useful as orthopedic screws |
US4097061A (en) * | 1976-04-19 | 1978-06-27 | Dietlein Robert W | Ski insert for anchoring a ski binding screw in a ski |
US4115162A (en) * | 1976-09-14 | 1978-09-19 | Siemens Aktiengesellschaft | Process for the production of epitaxial layers on monocrystalline substrates by liquid-phase-slide epitaxy |
US4295765A (en) * | 1979-04-23 | 1981-10-20 | Burke Michael R | Tie-down structure |
US4360012A (en) * | 1980-02-19 | 1982-11-23 | National Research Development Corporation | External fixation devices for orthopaedic fractures |
US4878915A (en) * | 1987-01-22 | 1989-11-07 | Brantigan John W | Surgical prosthetic implant facilitating vertebral interbody fusion |
US5169400A (en) * | 1988-04-02 | 1992-12-08 | Aesculap Ag | Bone screw |
US4858601A (en) * | 1988-05-27 | 1989-08-22 | Glisson Richard R | Adjustable compression bone screw |
US4950270A (en) * | 1989-02-03 | 1990-08-21 | Boehringer Mannheim Corporation | Cannulated self-tapping bone screw |
US5423819A (en) * | 1989-02-06 | 1995-06-13 | American Cyanamid Company | Screw and driver for securing a bone block |
US5129906A (en) * | 1989-09-08 | 1992-07-14 | Linvatec Corporation | Bioabsorbable tack for joining bodily tissue and in vivo method and apparatus for deploying same |
US5004421A (en) * | 1990-07-27 | 1991-04-02 | Sargon Lazarof | Dental implant and method of using same |
US5514138A (en) * | 1991-02-08 | 1996-05-07 | Pfizer Inc. | Connector having a stop member |
US5217462A (en) * | 1991-03-05 | 1993-06-08 | Pfizer Hospital Products Group, Inc. | Screw and driver |
US5498265A (en) * | 1991-03-05 | 1996-03-12 | Howmedica Inc. | Screw and driver |
US5549677A (en) * | 1991-05-13 | 1996-08-27 | Walter Durr | Implant with pressing surface |
US5334204A (en) * | 1992-08-03 | 1994-08-02 | Ace Medical Company | Fixation screw |
US5964768A (en) * | 1993-01-21 | 1999-10-12 | Acumed, Inc. | Tapered bone screw with continuously varying pitch |
US5431651A (en) * | 1993-02-08 | 1995-07-11 | Goble; E. Marlowe | Cross pin and set screw femoral and tibial fixation method |
US5769852A (en) * | 1993-04-27 | 1998-06-23 | Medevelop Ab | Implantable anchoring element and anchoring assembly for prostheses |
US5456267A (en) * | 1994-03-18 | 1995-10-10 | Stark; John G. | Bone marrow harvesting systems and methods and bone biopsy systems and methods |
US5584836A (en) * | 1994-04-07 | 1996-12-17 | Smith & Nephew Richards, Inc. | Cannulated medical suture anchor |
US5690633A (en) * | 1994-09-23 | 1997-11-25 | Smith & Nephew Richards, Inc. | Orthopedic fracture fixation device |
US5601553A (en) * | 1994-10-03 | 1997-02-11 | Synthes (U.S.A.) | Locking plate and bone screw |
US5727943A (en) * | 1995-07-18 | 1998-03-17 | Implant Innovations, Inc. | Self-tapping, screw-type dental implant |
US5976139A (en) * | 1996-07-17 | 1999-11-02 | Bramlet; Dale G. | Surgical fastener assembly |
US5964767A (en) * | 1997-09-12 | 1999-10-12 | Tapia; Eduardo Armando | Hollow sealable device for temporary or permanent surgical placement through a bone to provide a passageway into a cavity or internal anatomic site in a mammal |
Cited By (128)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8287550B2 (en) | 2000-06-26 | 2012-10-16 | Stryker Spine | Bone screw retaining system |
US8734496B2 (en) | 2000-06-26 | 2014-05-27 | Stryker Spine | Bone screw retaining system |
US20050149027A1 (en) * | 2000-06-26 | 2005-07-07 | Stryker Spine | Bone screw retaining system |
US9186189B2 (en) | 2000-06-26 | 2015-11-17 | Stryker Spine | Bone screw retaining system |
US20030093082A1 (en) * | 2000-06-26 | 2003-05-15 | Stryker Spine | Bone screw retaining system |
US20110152944A1 (en) * | 2000-06-26 | 2011-06-23 | Stryker Spine | Bone screw retaining system |
US7887547B2 (en) * | 2000-06-26 | 2011-02-15 | Stryker Spine | Bone screw retaining system |
US20040153092A1 (en) * | 2001-01-19 | 2004-08-05 | Aesculap Ag & Co. Kg | Locking mechanism for a bone screw |
US7172600B2 (en) * | 2001-01-19 | 2007-02-06 | Aesculap Ag & Co. Kg | Locking mechanism for a bone screw |
US7717945B2 (en) | 2002-07-22 | 2010-05-18 | Acumed Llc | Orthopedic systems |
US20040133207A1 (en) * | 2002-10-11 | 2004-07-08 | Abdou M. Samy | Distraction screw for skeletal surgery and method of use |
US20090177238A1 (en) * | 2002-10-11 | 2009-07-09 | Abdou M Samy | Distraction screw for skeletal surgery and method of use |
US7476228B2 (en) * | 2002-10-11 | 2009-01-13 | Abdou M Samy | Distraction screw for skeletal surgery and method of use |
US20080058810A1 (en) * | 2003-01-10 | 2008-03-06 | Abdou M S | Bone screw systems and methods of use |
US9408646B2 (en) | 2003-09-03 | 2016-08-09 | DePuy Synthes Products, Inc. | Bone plate with captive clips |
US9414870B2 (en) | 2003-09-03 | 2016-08-16 | DePuy Synthes Products, Inc. | Translatable carriage fixation system |
US10368927B2 (en) | 2003-09-03 | 2019-08-06 | DePuy Synthes Products, Inc. | Bone plate with captive clips |
US20050143732A1 (en) * | 2003-10-24 | 2005-06-30 | Shane Burch | Bone treatment instrument and method |
US7771426B2 (en) | 2003-10-24 | 2010-08-10 | University Health Network | Bone treatment instrument and method |
US8282651B2 (en) | 2003-11-26 | 2012-10-09 | Synthes Usa, Llc | Cannulated fastener system |
US7766920B2 (en) | 2003-11-26 | 2010-08-03 | Synthes Usa, Llc | Cannulated fastener system |
US8628537B2 (en) | 2004-04-06 | 2014-01-14 | DePuy Synthes Products, LLC | Adjustable tool for cannulated fasteners |
US8449542B2 (en) | 2004-06-02 | 2013-05-28 | Synthes Usa, Llc | Implant assembly device |
US20060167463A1 (en) * | 2004-06-02 | 2006-07-27 | Sean Powell | Implant assembly device |
US7033365B2 (en) | 2004-06-02 | 2006-04-25 | Synthes (Usa) | Implant assembly device |
US20050273102A1 (en) * | 2004-06-02 | 2005-12-08 | Sean Powell | Implant assembly device |
US11096799B2 (en) | 2004-11-24 | 2021-08-24 | Samy Abdou | Devices and methods for inter-vertebral orthopedic device placement |
US10918498B2 (en) | 2004-11-24 | 2021-02-16 | Samy Abdou | Devices and methods for inter-vertebral orthopedic device placement |
US8308776B2 (en) | 2005-02-18 | 2012-11-13 | Samy Abdou | Devices and methods for dynamic fixation of skeletal structure |
US8845701B2 (en) | 2005-02-18 | 2014-09-30 | Samy Abdou | Devices and methods for dynamic fixation of skeletal structure |
US8398689B2 (en) | 2005-02-18 | 2013-03-19 | Samy Abdou | Devices and methods for dynamic fixation of skeletal structure |
US8845696B1 (en) | 2005-02-18 | 2014-09-30 | Samy Abdou | Devices and methods for dynamic fixation of skeletal structure |
US20070299448A1 (en) * | 2006-06-07 | 2007-12-27 | Spinefrontier Lls | Methods and devices for static or dynamic spine stabilization |
US8257355B2 (en) | 2006-06-07 | 2012-09-04 | Spinefrontier Inc. | Methods and devices for static or dynamic spine stabilization |
US20080015632A1 (en) * | 2006-07-14 | 2008-01-17 | Stryker Trauma Gmbh | Device, kit, and a method for handling a medical implant |
US8709014B2 (en) * | 2006-07-14 | 2014-04-29 | Stryker Trauma Gmbh | Device, kit, and a method for handling a medical implant |
US8876874B2 (en) | 2006-08-21 | 2014-11-04 | M. Samy Abdou | Bone screw systems and methods of use |
US20110202059A1 (en) * | 2006-11-17 | 2011-08-18 | Webb Lawrence X | External fixation assembly and method of use |
US8454603B2 (en) * | 2006-11-17 | 2013-06-04 | Wake Forest University Health Sciences | External fixation assembly and method of use |
US9050136B2 (en) | 2006-11-17 | 2015-06-09 | Wake Forest University Health Sciences | External fixation assembly and method of use |
US20090018589A1 (en) * | 2007-07-13 | 2009-01-15 | Smisson Iii Hugh F | Bone Screw |
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US9370357B2 (en) * | 2007-12-13 | 2016-06-21 | Smith & Nephew, Inc. | Anchoring system |
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US20090198289A1 (en) * | 2008-02-02 | 2009-08-06 | Manderson Easton L | Fortified cannulated screw |
US8257407B2 (en) * | 2008-04-23 | 2012-09-04 | Aryan Henry E | Bone plate system and method |
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US11191580B2 (en) | 2016-07-04 | 2021-12-07 | Karl Leibinger Medizintechikgmbh & Co. Kg | Implantation aid for the use of surface-sensitive implants |
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