CA2256055C - Pivotal securing system at a bone screw - Google Patents

Pivotal securing system at a bone screw Download PDF

Info

Publication number
CA2256055C
CA2256055C CA002256055A CA2256055A CA2256055C CA 2256055 C CA2256055 C CA 2256055C CA 002256055 A CA002256055 A CA 002256055A CA 2256055 A CA2256055 A CA 2256055A CA 2256055 C CA2256055 C CA 2256055C
Authority
CA
Canada
Prior art keywords
screw
head part
securing system
shoulder
accordance
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CA002256055A
Other languages
French (fr)
Other versions
CA2256055A1 (en
Inventor
Armin Studer
Cosimo Donno
Markus Frohlich
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zimmer GmbH
Original Assignee
Zimmer GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zimmer GmbH filed Critical Zimmer GmbH
Publication of CA2256055A1 publication Critical patent/CA2256055A1/en
Application granted granted Critical
Publication of CA2256055C publication Critical patent/CA2256055C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • A61B17/8033—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates having indirect contact with screw heads, or having contact with screw heads maintained with the aid of additional components, e.g. nuts, wedges or head covers
    • A61B17/8042—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates having indirect contact with screw heads, or having contact with screw heads maintained with the aid of additional components, e.g. nuts, wedges or head covers the additional component being a cover over the screw head
    • 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
    • A61B17/70—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
    • A61B17/7001—Screws or hooks combined with longitudinal elements which do not contact vertebrae
    • A61B17/7035—Screws or hooks, wherein a rod-clamping part and a bone-anchoring part can pivot relative to each other
    • 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
    • A61B17/70—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
    • A61B17/7001—Screws or hooks combined with longitudinal elements which do not contact vertebrae
    • A61B17/7041—Screws or hooks combined with longitudinal elements which do not contact vertebrae with single longitudinal rod offset laterally from single row of screws or hooks
    • 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
    • A61B17/8877—Screwdrivers, spanners or wrenches characterised by the cross-section of the driver bit
    • A61B17/8883—Screwdrivers, spanners or wrenches characterised by the cross-section of the driver bit the driver bit acting on the periphery of the screw head
    • 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
    • A61B2017/8655—Pins or screws or threaded wires; nuts therefor with special features for locking in the bone

Abstract

With the invention a pivotal securing system between a bone screw (1) with a spherical head part (2) and a reception part (3) is shown. The reception part has a passage bore (4) with a shoulder at its end which encloses the head part (2) at its lower side and which forms an abutment when the head part (2) is pressed on by the clamping screw (7) in a settable pivotal position (8). The head part (2) is executed as a separate part (9) which can be screwed together with the bone screw (1) in order to be able to place on the reception part (3) and to connect it to the latter after the implantation of the bone screw (1).

Description

Translation of the European Patent Application No. 98810957.5 of September 24, 1998 (2. Priority document).
P.6860/SO/Pa Sulzer Orthopadie AG, CH-6340 Baar (Switzerland) Pivotal securing system at a bone screw The invention relates to a pivotal securing system between a bone screw with a spherical head part and a reception part which, at the end of a passage bore, encloses the head part with a shoulder at its lower side and which receives a clamping screw in the passage bore by means of which the head part can be pressed against the shoulder in a selectable pivotal position.
A bone screw is shown in EP-A-0 614 649 which must be inserted through a reception part prior to being rotated into an implant, which is a hindrance during the rotating in. Precisely in vertebral corrections a plurality of bone screws of this kind, which are screwed into different vertebrae, are connected to one another via connection rods and reception parts. The reception part is designed in the shape of a tower and receives the spherical head of the bone screw within itself. The bone screw is pivotally journalled at a counter-shell with its spherical head and can be fixed to the reception part either directly by a clamping screw or indirectly by a clamping screw via intermediate members such as connection rod and pressure disc.
Similar considerations are shown in DE-A-195 42 116 for a plate-shaped reception part which is pivotal about the common centre of these spherical surfaces prior to the fixing of spherical surfaces of the screw head.
Common to both arrangements is that the bone screw must be screwed in through the reception part.
The object of the invention is to remedy this condition. This object is satisfied in that the spherical head part is designed as a separate part which can be screwed together with the bone screw in order to be able to place on the reception part and to connect it to the latter after the implantation of the bone screw.
The arrangement has the advantage that the bone screw, for example as a pedicle screw, is freely accessible during the screwing in. A surgeon can monitor the position and seating of the screw as well as the state of the bone tissue during the screwing in. In the combination of a plurality of pedicle screws the reception parts can be provisorially secured to pre-bent connection rods and corrected in their position by placing on at the pedicle screws in order subsequently to secure the separate spherical heads to the pedicle screws and to screw clamping screws in loosely. The provisorially fixed connection rods can once again be loosened in their securing to the reception part and then a11 connections can be tightened uniformly. This procedure is recommended if the vertebrae are aligned with respect to one another. If however displacements of the vertebrae are required, a loosening of the reception parts which are aligned on the connection rods is intentionally dispensed with. A further advantage is a construction of the reception part of low height and the possibility of using standard pedicle screws in order to arrive at a reasonable pivotal range and at an easier insertion of the pedicle screws.
Further advantageous embodiments of the invention are shown in the claims 2 to 13.
The execution of the separate spherical head part as a screw nut which can be screwed together with a screw-like extension of the bone screw extends the field of use of the standard pedicle screws. Since these screw nuts are weakened by slits, they fasten themselves to their counter-threads when being pressed together. The bone screw need therefore not necessarily have an abutment on its screw-like extension for the spherical screw nut. The screw nut can therefore also be adjusted in its height and then fixed to the counter-thread through pressing together. Engagement surfaces in the form of indentations facilitate the height adjustment of the spherical screw nut. The shoulder of the reception part and the pressing surface of the clamping screw are formed as conical surfaces, the half cone angle a of which should lie within certain limits 8~ < a < 25~ in order to achieve a good clamping action and a low space requirement. With the conical surfaces against a spherical surface the force application points are practically at the same location and hardly dependent on manufacturing tolerances even in elastic and slightly plastic deformations. The springing in of the screw nut, which is weakened by slits, can be attuned to these constant force application points. In addition to the friction between the conical surfaces and the spherical surface, an elastic and a plastic deformation in the form of a flattening also take place, which causes material to protrude in the region of the indentations of the spherical surface and likewise acts counter to a rotation. This kind of a connection permits bone screws with and without a collar to be used, height adjustments to be carried out at the screw shaped extension of the bone screw and thread diameters to be used at the actual bone screw which are greater than the inner diameter of the shoulder in the reception part.
If the spherical nut has slits only from above and a neck is formed at its lower side which is supported on a shoulder of the bone screw as a closed ring outside the outer diameter of the screw-like extension, the closed ring can be tensioned against the shoulder of the bone screw when the nut is rotated in. This has the advantage that at a specific transmission torque which acts at the spherical nut, lower bending stress peaks arise at the screw-shaped extension of the bone screw.
A further improvement consists in providing the clamping screw at its clamping surface with a thread in the form of a spirally arranged groove, with this groove or, respectively, the threading being in the same direction as the outer thread of the clamping screw and having the same pitch as the outer thread. With a measure of this kind it is ensured that the direction of the spiral groove and its relative movement with respect to the spherical head part coincide during the clamping.
The protruding threaded part can deform itself and the spherical surface plastically to a limited extent so that a force-locked and a form-locked connection arises which is particularly suitable for the transmission of bending torques to a spherical head. In principle every spherical head which is captured in a threaded bore and is fixed with a clamping screw with an inwardly lying pressing surface can be improved in the transmission of a maximum bending torque with this measure when the pressing surface has a spiral thread which is directed similarly to the outer thread of the clamping screw and which has the same pitch. Since the depth of the spiral thread need not be large for the clamping, it has proved useful to execute the spiral thread multiply. An improvement of the transmittable torques also arises when the deformations are only in the elastic range.
In the following the invention will be described with reference to exemplary embodiments. Shown are:
Fig. 1 schematically, a pedicle screw with a separate spherical head part which is formed as a screw;
Fig. 2 schematically, a pedicle screw with a separate spherical head part which is formed as a nut;
Fig. 3 schematically, a standard pedicle screw with a separate spherical head part which is formed as a nut and with a pivotal reception part;
Fig. 4 schematically, an arrangement in accordance with Figure 3 with a fixed connection rod;
Fig. 5 schematically, a pedicle screw without a collar with a spherical head part which is adjustable in height and which is formed as a nut;
Fig. 6 schematically, an arrangement in accordance with Figure 3 in which, for a mounting which can not be pivoted out of the axis, the clamping screw and the spherical nut were replaced by a differently dimensioned securing nut;
Figs. 7 to 14 schematically, in each case a side view of a spherical screw nut which is provided with a slit and an engagement surface and their projections in the direction of the screw axis;
Fig. 15 schematically, an enlarged section of Figure 3, in which the half cone angle at the reception part and the clamping screw can be seen;
Fig. 16 schematically, the head of a screwing tool which can be used for the screw nuts of Figures 7, 8 and 9; and Fig. 17 schematically, on a smaller scale, a view of a reception part which is connected to a bone screw.
Fig. 18 schematically and enlarged in a longitudinal section, a further embodiment of a spherical nut with a neck which is formed on for the support on a shoulder of the bone screw;
Fig. 19 schematically, the nut of Fig. 18 in a plan view;
Fig. 20 schematically and enlarged, in a longitudinal section, a further embodiment of a clamping screw;
Fig. 21 schematically and enlarged, a plan view of the clamping screw of Fig. 20; and Fig. 22 schematically, a section of the clamping screw of Fig. 20 which is once again enlarged, with an inner thread on the pressing surface for the spherical head part.
A pivotal securing system between a bone screw 1 comprising a spherical head part 2 and a reception part 3 is shown in the figures.
The reception part has a passage bore 4 with a shoulder at its end which encloses the head part 2 at its lower side and which forms an abutment when the head part 2 is pressed on by the clamping screw 7 in a settable pivotal position 8. The head part 2 is executed as a separate part 9 which can be screwed together with the bone screw 1 in order to be able to place on the reception part 3 and to connect it to the latter after the implantation of the bone screw 1.
In Figures 1, 2, 3, 4, 5, 15 and 17 the same reception part 3 is shown repeatedly, which, as a securing system 17, receives a connection rod 18 in a bore 28 and is secured to it with one or two setscrews 24 which are sunk into threaded bores 29. A lug (Figure 17) is formed on at the side with a passage bore 4 which is arranged transverse and displaced with respect to the bore 28 and has an inwardly projecting ring shaped shoulder 5 at its lower end. Above the shoulder 5 the passage bore 4 is broadened to such an extent that a spherical head part 9, 10 of a pedicle screw 1 is caught by the shoulder 5 and can be pressed onto the latter with a clamping screw 7. Since the pedicle screws 1 are equipped with a spherical head part 2 which can be screwed together with the pedicle screw 1 as a separate part 9, there are many more freedoms in the shaping of the individual pedicle screws without it being necessary to do without a pivotability about a spherical head.
In Figure 1 the pedicle screw 1 is provided with a collar 20 which has an outer hexagon in order to turn in the screw 1. The collar 20 has a bore with an inner thread in order to receive the separate spherical head part 9 at an inner hexagon 23 and to screw it into this bore after the reception part 3 has been placed on. The spherical head part 9 is drawn tight against an abutment which is provided by a terminating thread or by the front surface of the collar 20. It is essential that the _ g _ shoulder 5 is caught by the lower side 6 of the spherical head 2 with sufficient clearance so that the provided pivotal range can be moved through when the shoulder 5 is placed in contact with the spherical head 2. The clamping screw 7 is executed as a cover screw with an inner hexagon 23. Instead of the inner hexagon 23 two blind holes displaced away from the axis could also serve as application surfaces for turning on the cover screw 7 and provide approximately closed spaces between the cover screw 7 and the shoulder 5.
In Figure 2 a similar reception part 3 is secured with a similar cover screw 7 in a pivotal position 8 to a separate spherical head part 9 which is designed as a screw nut 10 which is firmly screwed to a screw shaped extension 11 of the pedicle screw 1 and lies in contact against its collar 20. The thread of the actual pedicle screw 1 has a diameter 21 which may well be greater than the inner diameter 19 (Figure 5) of the shoulder 5. The spherical radius 22 of the screw nut 10 stands in a definite relationship to the diameters of the pressing surfaces of the shoulder 5 and the clamping screw 7, which is given by the cone angles of average conical pressing surfaces, as will be shown later.
Figures 3, 4 and 15 show a standard pedicle screw 1 with a relatively long screw-shaped extension 11. In Figure 3 the clamping screw 7 is turned in only slightly and permits deviations 25 of the pivotal position 8 from a central pivotal position which can be on the order of magnitude of plus or minus 15~ if, as can be seen in Figure 15, the pressing surface of the support shoulder 5 and the pressing surface 16 of the clamping screw 7 are conical surfaces with a half cone angle 8~ <
a < 25~. The conical pressing surfaces have the advantage that the force application points at the spherical head 10 are preserved if the latter _ g _ deforms inwardly as a result of an intentional weakening. A half cone angle a ~ 20~ is seen as advantageous for this case. Since the screw-shaped extension 11 of the illustrated pedicle screw 1 is made longer than the height of the spherical head 10, a conical bore is placed in the clamping screw 11 which allows the maximum provided pivoting. The clamping screw 10 is provided with cut-outs on its upper side which permit the placement of a screwing-in tool. In Figure 4 the clamping screw 7 is fixed on the spherical screw nut 10. As long as the screw nut does not deform inwardly to such an extent that the thread clearance between the screw nut 10 and the screw-shaped extension 11 is cancelled, only the frictional forces which are produced by the tightening of the screw nut 10 on the collar and the thread are responsible for the torque which can be transmitted to the pedicle screw with respect to the screw axis of the reception part 3.
The Figures 7 to 14 thus show a variety of artificially weakened spherical screw nuts 10 which in this case are weakened by additional slits 12 which pass through the thread in order to achieve an inward deformation of the thread passages and an additional cramping on the screw-shaped extension 11 when being pressed together between the conical pressing surfaces 16, 5. In Figures 7, 8, 9, 10, 14 the slits lie in planes which pass through the axis of the pedicle screw. In Figures 1 l, 12, 13 the slits lie in planes which are perpendicular to the axis of the pedicle screw. Other weakenings through incisions and notches are likewise conceivable if they lead to a reduction of the thread diameter 13 at the spherical screw nuts 10. At the outer side of the screw nuts 10, engagement surfaces 14 in the form of cylindrical cut-outs are provided which permit the turning in with a screw tool 15 (Figure 16) which has suitable projections 26.

Figure S shows an anchoring of the screw nut 10 without an abutment.
The turning in of the pedicle screw is done at the upper end at an inner hexagon 23. After the pedicle screw 1, of which the thread diameter 21 may likewise be greater than the inner diameter 19 of the shoulder 5, has been turned in, the reception part 3 can be placed on. Then the spherical screw nut 10 is screwed in at a suitable height at the screw-shaped extension 11. Then the clamping screw 7 is screwed in and the reception part 3 is pivoted into a suitable direction. When the clamping screw 7 is turned tight with respect to the reception part 3 the deformable spherical nut 10 seats itself firmly on the thread and is blocked. With the help of the conical pressing surfaces 16, 5 and the number and size of the cut-outs 14, local plastic deformations can be intentionally produced which produce a rigid connection between the screw nut 10 and the pressing surfaces 16, 5.
In order to emphasise the modular nature of the invention, Figure 6 shows how the standard pedicle screw 1 and the reception part 3 of Figure 3 can also be directly mutually adjustably fixed in a plane with respect to the angle of rotation with a securing nut 27. The clamping of the shoulder 5 takes place between the collar 20 and the securing nut 27.
The nut 10 in Figs. 18 and 19 is provided with slits 12 only up to two thirds of the way from above so that a connected threaded part arises in the lower part for the inner thread 13. A neck 30 is additionally formed on which projects outwardly at an inclination and is supported on a shoulder of the bone screw 1. Using a non-illustrated turning-in tool, the nut 10 can be grasped at engagement surfaces 14 and screwed towards the shoulder 20 against a bias force. A bending torque acting at the spherical surface of the nut primarily effects an increase of the compression stresses in the neck 30 and an increase of the tension stresses in the screw-like extension 11 of the bone screw 1. In contrast to a pure bending stress with a neutral phase and with tension and compression stresses increasing in the outward direction, the screw-like extension 11 is tension stressed over its entire cross-section, with substantially lower tension peaks arising.
In Figs. 20, 21 and 22 a general improvement of clamping screws 7 for spherical heads is shown. The pressing surface 16 is the section of an inner cone which was provided with a multiple thread 31, 31a in the form of spiral grooves, with a groove 31 a being directed the same as the outer thread 32 of the clamping screw 7 and having a pitch 33 like that of the outer thread in order to achieve a greater mutual penetration of the spherical surface and the multiple thread. For the transmission of a large drawing-in torque, four cross-wise arranged grooves 34 are provided in the upper region of the clamping screw.

Claims (13)

1. A securing system between a bone screw having a spherical head part arid a reception part which at the end of a passage bore encloses the head part with a shoulder at its lower side and which receives a clamping screw in the passage bore by means of which the head part can be pressed on against the shoulder in a selectable pivotal position, the spherical head part being a separate screw nut which can be screwed together with a threaded extension of the bone screw.
2. The securing system in accordance with claim 1 wherein the screw nut is weakened towards the outside by at least one slit of an inner thread in order to fix the inner thread during the pressing together of the spherical screw nut through a deformation of thread paths on a threaded extension.
3. The securing system in accordance with claim 1 whereby the spherical screw nut has engagement surfaces which enable the placing on of a screw tool.
4. The securing system in accordance with claim 1 where the shoulder and a press-on surface of the clamping screw each include a conical surface.
5. The securing system in accordance with claim 4 where each conical surfaces has a half cone angle between 8°
and 25°.
6. The securing system in accordance with claim 5 where each conical surface has a half cone angle .alpha..apprxeq.20°.
7. The securing system in accordance with claim 1 where the reception part has a further mounting for a connection rod.
8. The securing system in accordance with claim 1 where the bode screw has a collar which projects outwardly over an inner diameter of the shoulder.
9. The securing system in accordance with claim 1 where a thread diameter of the bone screw is greater than and inner diameter of the shoulder.
10. They securing system in accordance with claim 1 where a the screw nut has a neck which forms a closed ring and which is supported outside an outer diameter of the thread extension on a shoulder of the bone screw.
11. The securing system in accordance with claim 2 where a press-on surface of the clamping screw is provided with an inner thread which is directed the same as an outer thread of the clamping screw and has a similar pitch in order that the inner thread forms in a groove when the clamping screw is drawn on to the spherical head part which improves the torque which can be transmitted to the spherical head part.
12. The securing system in accordance with claim 11 where the inner thread forms a plurality of grooves in order to increase the number of thread peaks acting on the spherical head part.
13. A pivotal securing system between a bone screw having a spherical head part and a reception part which at the end of a passage bore encloses the head part with a shoulder at its lower side and which receives a clamping screw in the passage bore by means of which the head part can be pressed on against the shoulder in a selectable pivotal position, where the spherical head part is executed as a separate part which can be screwed together with the bone screw in order to be able to place on the reception part and to connect it to the bone screw after the implantation of the bone screw and where a press-on surface of the clamping screw is provided with an inner thread which is directed the same as an outer thread of the clamping screw and has a similar pitch in order that the inner thread forms in a groove when the clamping screw is drawn on to the spherical head part which improves the torque which can be transmitted to the spherical head part.
CA002256055A 1998-02-02 1998-12-15 Pivotal securing system at a bone screw Expired - Fee Related CA2256055C (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
EP98810076A EP0933065A1 (en) 1998-02-02 1998-02-02 Pivotable attachment system for a bone screw
EP98810076.4 1998-02-02
EP98810957.5 1998-09-24
EP98810957A EP0938872B1 (en) 1998-02-02 1998-09-24 Pivotable attachment system for a bone screw

Publications (2)

Publication Number Publication Date
CA2256055A1 CA2256055A1 (en) 1999-08-02
CA2256055C true CA2256055C (en) 2002-10-22

Family

ID=26151860

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002256055A Expired - Fee Related CA2256055C (en) 1998-02-02 1998-12-15 Pivotal securing system at a bone screw

Country Status (7)

Country Link
US (1) US6146383A (en)
EP (2) EP0933065A1 (en)
JP (1) JP4131766B2 (en)
AT (1) ATE219910T1 (en)
CA (1) CA2256055C (en)
DE (1) DE59804657D1 (en)
ES (1) ES2180134T3 (en)

Families Citing this family (261)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0764525A (en) * 1990-02-05 1995-03-10 Scitex Corp Ltd Apparatus and method for processing of color image
FR2784282B1 (en) * 1998-10-09 2001-03-23 Dimso Sa SPINAL OSTEOSYNTHESIS SYSTEM WITH IMPROVED RIGIDITY
DE69905707T2 (en) * 1998-04-29 2003-11-06 Dimso Sa SPINE OSTEOSYNTHESIS SYSTEM WITH TENSIONING DEVICE, ESPECIALLY FOR FRONT FIXING
US6565565B1 (en) 1998-06-17 2003-05-20 Howmedica Osteonics Corp. Device for securing spinal rods
KR100324698B1 (en) * 1999-01-30 2002-02-27 구자교 Spine fixing device
DE59911776D1 (en) * 1999-07-07 2005-04-21 Synthes Ag ANGLE ADJUSTABLE BONE SCREW AND DEVICE FOR OSTEOSYNTHETIC BONE FIXATION
ATE243003T1 (en) * 1999-07-07 2003-07-15 Synthes Ag BONE SCREW WITH AXIAL TWO-PIECE SCREW HEAD
FR2801778B1 (en) * 1999-12-03 2002-02-08 Spinevision CONNECTION ASSEMBLY FOR THE FIELD OF RACHIDIAN OSTEOSYNTHESIS
WO2001047425A1 (en) * 1999-12-24 2001-07-05 Societe De Fabrication De Materiel Orthopedique (Sofamor) Pedicle screws with inclined channels to hold support rods
US6309391B1 (en) * 2000-03-15 2001-10-30 Sdgi Holding, Inc. Multidirectional pivoting bone screw and fixation system
CA2415072C (en) 2000-06-30 2011-05-31 Stephen Ritland Polyaxial connection device and method
US7833250B2 (en) 2004-11-10 2010-11-16 Jackson Roger P Polyaxial bone screw with helically wound capture connection
US20060025771A1 (en) * 2000-08-23 2006-02-02 Jackson Roger P Helical reverse angle guide and advancement structure with break-off extensions
US6537294B1 (en) * 2000-10-17 2003-03-25 Advanced Cardiovascular Systems, Inc. Delivery systems for embolic filter devices
US7651516B2 (en) * 2000-12-01 2010-01-26 Spinevision S.A. Connection assembly for the field of spinal osteosynthesis and method for using at least one such assembly
US6368321B1 (en) * 2000-12-04 2002-04-09 Roger P. Jackson Lockable swivel head bone screw
FR2817929B1 (en) 2000-12-07 2003-03-21 Spine Next Sa DEVICE FOR FIXING A ROD AND A SPHERICAL SYMMETRY SCREW HEAD
US8377100B2 (en) 2000-12-08 2013-02-19 Roger P. Jackson Closure for open-headed medical implant
US6726689B2 (en) 2002-09-06 2004-04-27 Roger P. Jackson Helical interlocking mating guide and advancement structure
US7220262B1 (en) 2001-03-16 2007-05-22 Sdgi Holdings, Inc. Spinal fixation system and related methods
DE10115014A1 (en) * 2001-03-27 2002-10-24 Biedermann Motech Gmbh anchoring element
US10729469B2 (en) 2006-01-09 2020-08-04 Roger P. Jackson Flexible spinal stabilization assembly with spacer having off-axis core member
US10258382B2 (en) 2007-01-18 2019-04-16 Roger P. Jackson Rod-cord dynamic connection assemblies with slidable bone anchor attachment members along the cord
US7862587B2 (en) 2004-02-27 2011-01-04 Jackson Roger P Dynamic stabilization assemblies, tool set and method
US8353932B2 (en) 2005-09-30 2013-01-15 Jackson Roger P Polyaxial bone anchor assembly with one-piece closure, pressure insert and plastic elongate member
US8292926B2 (en) 2005-09-30 2012-10-23 Jackson Roger P Dynamic stabilization connecting member with elastic core and outer sleeve
US8021399B2 (en) 2005-07-19 2011-09-20 Stephen Ritland Rod extension for extending fusion construct
ATE495709T1 (en) 2001-09-28 2011-02-15 Stephen Ritland CONNECTING ROD FOR A POLYAXIAL SYSTEM WITH SCREW OR HOOK
FR2832308B1 (en) * 2001-11-22 2004-09-24 Guillaume Derouet ORTHOPEDIC IMPLANT CONSTITUTES A SUPPORT STRUCTURE EQUIPPED WITH AT LEAST ONE ORIFICE FOR THE PASSING OF A FIXATION SCREW ASSOCIATED WITH A NUT
CA2471843C (en) 2001-12-24 2011-04-12 Synthes (U.S.A.) Device for osteosynthesis
EP1545353B1 (en) 2002-02-20 2010-08-11 Stephen Ritland Pedicle screw connector apparatus
FR2838041B1 (en) * 2002-04-04 2004-07-02 Kiscomedica SPINAL OSTEOSYNTHESIS SYSTEM
US6966910B2 (en) 2002-04-05 2005-11-22 Stephen Ritland Dynamic fixation device and method of use
US7682375B2 (en) 2002-05-08 2010-03-23 Stephen Ritland Dynamic fixation device and method of use
US11224464B2 (en) 2002-05-09 2022-01-18 Roger P. Jackson Threaded closure with inwardly-facing tool engaging concave radiused structures and axial through-aperture
US8257402B2 (en) 2002-09-06 2012-09-04 Jackson Roger P Closure for rod receiving orthopedic implant having left handed thread removal
US8876868B2 (en) 2002-09-06 2014-11-04 Roger P. Jackson Helical guide and advancement flange with radially loaded lip
US8282673B2 (en) 2002-09-06 2012-10-09 Jackson Roger P Anti-splay medical implant closure with multi-surface removal aperture
JP4174282B2 (en) * 2002-10-01 2008-10-29 キヤノン株式会社 Image reading device
DE10246177A1 (en) * 2002-10-02 2004-04-22 Biedermann Motech Gmbh Anchor element consists of screw with head, bone-thread section on shank and holder joining rod-shaped part to screw. with cavities in wall, and thread-free end of shank
US8002812B2 (en) * 2002-10-10 2011-08-23 Us Spine, Inc. Bone fixation implant system and method
US7563275B2 (en) * 2002-10-10 2009-07-21 U.S. Spinal Technologies, Llc Bone fixation implant system and method
US7306602B2 (en) * 2002-10-31 2007-12-11 Depuy Actomed, Inc. Snap-in washers and assemblies thereof
FR2846869B1 (en) 2002-11-08 2005-02-18 Scient X TIGHTENING NUT FOR OSTEOSYNTHESIS DEVICE
FR2847310B1 (en) * 2002-11-18 2008-12-05 Saint Gobain INSERTS FOR EQUIPPING PLATES, IN PARTICULAR GLASS, FOR THEIR FASTENING AND THE PLATES SO EQUIPPED
US7887539B2 (en) 2003-01-24 2011-02-15 Depuy Spine, Inc. Spinal rod approximators
CA2516791C (en) * 2003-02-25 2011-12-13 Stephen Ritland Adjustable rod and connector device and method of use
US8540753B2 (en) * 2003-04-09 2013-09-24 Roger P. Jackson Polyaxial bone screw with uploaded threaded shank and method of assembly and use
US6964666B2 (en) * 2003-04-09 2005-11-15 Jackson Roger P Polyaxial bone screw locking mechanism
US7621918B2 (en) 2004-11-23 2009-11-24 Jackson Roger P Spinal fixation tool set and method
US6716214B1 (en) * 2003-06-18 2004-04-06 Roger P. Jackson Polyaxial bone screw with spline capture connection
US8052724B2 (en) * 2003-06-18 2011-11-08 Jackson Roger P Upload shank swivel head bone screw spinal implant
US20040210216A1 (en) * 2003-04-17 2004-10-21 Farris Robert A Spinal fixation system and method
US8652175B2 (en) * 2003-05-02 2014-02-18 Rachiotek, Llc Surgical implant devices and systems including a sheath member
US20050171543A1 (en) * 2003-05-02 2005-08-04 Timm Jens P. Spine stabilization systems and associated devices, assemblies and methods
US20050177164A1 (en) * 2003-05-02 2005-08-11 Carmen Walters Pedicle screw devices, systems and methods having a preloaded set screw
US20050182401A1 (en) * 2003-05-02 2005-08-18 Timm Jens P. Systems and methods for spine stabilization including a dynamic junction
US7615068B2 (en) * 2003-05-02 2009-11-10 Applied Spine Technologies, Inc. Mounting mechanisms for pedicle screws and related assemblies
US20050182400A1 (en) * 2003-05-02 2005-08-18 Jeffrey White Spine stabilization systems, devices and methods
US7377923B2 (en) 2003-05-22 2008-05-27 Alphatec Spine, Inc. Variable angle spinal screw assembly
WO2004110247A2 (en) 2003-05-22 2004-12-23 Stephen Ritland Intermuscular guide for retractor insertion and method of use
FR2855392B1 (en) * 2003-05-28 2005-08-05 Spinevision CONNECTION DEVICE FOR SPINAL OSTESYNTHESIS
US8926670B2 (en) 2003-06-18 2015-01-06 Roger P. Jackson Polyaxial bone screw assembly
US8366753B2 (en) 2003-06-18 2013-02-05 Jackson Roger P Polyaxial bone screw assembly with fixed retaining structure
US7776067B2 (en) 2005-05-27 2010-08-17 Jackson Roger P Polyaxial bone screw with shank articulation pressure insert and method
US7766915B2 (en) 2004-02-27 2010-08-03 Jackson Roger P Dynamic fixation assemblies with inner core and outer coil-like member
US8137386B2 (en) * 2003-08-28 2012-03-20 Jackson Roger P Polyaxial bone screw apparatus
US8814911B2 (en) 2003-06-18 2014-08-26 Roger P. Jackson Polyaxial bone screw with cam connection and lock and release insert
US8398682B2 (en) 2003-06-18 2013-03-19 Roger P. Jackson Polyaxial bone screw assembly
US8092500B2 (en) 2007-05-01 2012-01-10 Jackson Roger P Dynamic stabilization connecting member with floating core, compression spacer and over-mold
US7967850B2 (en) 2003-06-18 2011-06-28 Jackson Roger P Polyaxial bone anchor with helical capture connection, insert and dual locking assembly
US7322981B2 (en) 2003-08-28 2008-01-29 Jackson Roger P Polyaxial bone screw with split retainer ring
US8257398B2 (en) * 2003-06-18 2012-09-04 Jackson Roger P Polyaxial bone screw with cam capture
US8377102B2 (en) 2003-06-18 2013-02-19 Roger P. Jackson Polyaxial bone anchor with spline capture connection and lower pressure insert
FR2859095B1 (en) * 2003-09-01 2006-05-12 Ldr Medical BONE ANCHORING IMPLANT WITH A POLYAXIAL HEAD AND METHOD OF PLACING THE IMPLANT
FR2860138A1 (en) * 2003-09-26 2005-04-01 Stryker Spine ASSEMBLY AND METHOD OF FIXING BONES
US11419642B2 (en) 2003-12-16 2022-08-23 Medos International Sarl Percutaneous access devices and bone anchor assemblies
US7179261B2 (en) 2003-12-16 2007-02-20 Depuy Spine, Inc. Percutaneous access devices and bone anchor assemblies
US7527638B2 (en) 2003-12-16 2009-05-05 Depuy Spine, Inc. Methods and devices for minimally invasive spinal fixation element placement
US7993373B2 (en) * 2005-02-22 2011-08-09 Hoy Robert W Polyaxial orthopedic fastening apparatus
AU2004317551B2 (en) 2004-02-27 2008-12-04 Roger P. Jackson Orthopedic implant rod reduction tool set and method
US8152810B2 (en) 2004-11-23 2012-04-10 Jackson Roger P Spinal fixation tool set and method
US7789896B2 (en) * 2005-02-22 2010-09-07 Jackson Roger P Polyaxial bone screw assembly
US8066739B2 (en) 2004-02-27 2011-11-29 Jackson Roger P Tool system for dynamic spinal implants
US7160300B2 (en) 2004-02-27 2007-01-09 Jackson Roger P Orthopedic implant rod reduction tool set and method
DE102004010380A1 (en) * 2004-03-03 2005-09-22 Biedermann Motech Gmbh Anchoring element and stabilizing device for the dynamic stabilization of vertebrae or bones with such an anchoring element
GB2411839B (en) * 2004-03-08 2006-11-01 Biomet Merck Ltd Prosthesis
US20050240181A1 (en) * 2004-04-23 2005-10-27 Boomer Mark C Spinal implant connectors
FR2870711B1 (en) * 2004-05-26 2006-09-01 Sdgi Holdings Inc DEVICE FOR CONNECTING THE ROD OF A SPINAL OSTEOSYNTHESIS DEVICE TO A VERTEBRA, AND A OSTEOSYNTHESIS DEVICE COMPRISING SAME
DE102004027881B4 (en) * 2004-05-28 2006-06-01 Aesculap Ag & Co. Kg Bone screw and osteosynthesis device
US7559943B2 (en) * 2004-06-09 2009-07-14 Zimmer Spine, Inc. Spinal fixation device with internal drive structure
US8021398B2 (en) * 2004-06-09 2011-09-20 Life Spine, Inc. Spinal fixation system
US7744635B2 (en) * 2004-06-09 2010-06-29 Spinal Generations, Llc Spinal fixation system
US7857834B2 (en) * 2004-06-14 2010-12-28 Zimmer Spine, Inc. Spinal implant fixation assembly
US7854752B2 (en) 2004-08-09 2010-12-21 Theken Spine, Llc System and method for dynamic skeletal stabilization
US7186255B2 (en) * 2004-08-12 2007-03-06 Atlas Spine, Inc. Polyaxial screw
DE502004009456D1 (en) * 2004-08-20 2009-06-18 Stryker Trauma Sa Clamping element and joint element
US20060058787A1 (en) * 2004-08-24 2006-03-16 Stryker Spine Spinal implant assembly
US7651502B2 (en) 2004-09-24 2010-01-26 Jackson Roger P Spinal fixation tool set and method for rod reduction and fastener insertion
US7513905B2 (en) * 2004-11-03 2009-04-07 Jackson Roger P Polyaxial bone screw
CA2586361A1 (en) 2004-11-10 2006-05-18 Roger P. Jackson Helical guide and advancement flange with break-off extensions
US8926672B2 (en) 2004-11-10 2015-01-06 Roger P. Jackson Splay control closure for open bone anchor
US7572279B2 (en) * 2004-11-10 2009-08-11 Jackson Roger P Polyaxial bone screw with discontinuous helically wound capture connection
US7621916B2 (en) * 2004-11-18 2009-11-24 Depuy Spine, Inc. Cervical bone preparation tool and implant guide systems
WO2006057837A1 (en) 2004-11-23 2006-06-01 Jackson Roger P Spinal fixation tool attachment structure
US9393047B2 (en) 2009-06-15 2016-07-19 Roger P. Jackson Polyaxial bone anchor with pop-on shank and friction fit retainer with low profile edge lock
US8444681B2 (en) 2009-06-15 2013-05-21 Roger P. Jackson Polyaxial bone anchor with pop-on shank, friction fit retainer and winged insert
US7875065B2 (en) 2004-11-23 2011-01-25 Jackson Roger P Polyaxial bone screw with multi-part shank retainer and pressure insert
EP1814470B1 (en) * 2004-11-23 2011-12-14 Roger P. Jackson Polyaxial bone screw with multi-part shank retainer
US9168069B2 (en) 2009-06-15 2015-10-27 Roger P. Jackson Polyaxial bone anchor with pop-on shank and winged insert with lower skirt for engaging a friction fit retainer
US8308782B2 (en) 2004-11-23 2012-11-13 Jackson Roger P Bone anchors with longitudinal connecting member engaging inserts and closures for fixation and optional angulation
US9216041B2 (en) 2009-06-15 2015-12-22 Roger P. Jackson Spinal connecting members with tensioned cords and rigid sleeves for engaging compression inserts
US9980753B2 (en) 2009-06-15 2018-05-29 Roger P Jackson pivotal anchor with snap-in-place insert having rotation blocking extensions
WO2006058221A2 (en) 2004-11-24 2006-06-01 Abdou Samy M Devices and methods for inter-vertebral orthopedic device placement
US7578833B2 (en) * 2004-12-13 2009-08-25 Dr. Robert S. Bray, Jr. Bone fastener assembly for bone retention apparatus
US7736380B2 (en) 2004-12-21 2010-06-15 Rhausler, Inc. Cervical plate system
US7704270B2 (en) * 2004-12-22 2010-04-27 Stryker Spine Variable offset connectors and bone fixation methods
US10076361B2 (en) 2005-02-22 2018-09-18 Roger P. Jackson Polyaxial bone screw with spherical capture, compression and alignment and retention structures
US7901437B2 (en) 2007-01-26 2011-03-08 Jackson Roger P Dynamic stabilization member with molded connection
US7476239B2 (en) 2005-05-10 2009-01-13 Jackson Roger P Polyaxial bone screw with compound articulation
US7951175B2 (en) 2005-03-04 2011-05-31 Depuy Spine, Inc. Instruments and methods for manipulating a vertebra
US7951172B2 (en) 2005-03-04 2011-05-31 Depuy Spine Sarl Constrained motion bone screw assembly
US8105368B2 (en) 2005-09-30 2012-01-31 Jackson Roger P Dynamic stabilization connecting member with slitted core and outer sleeve
US7722651B2 (en) 2005-10-21 2010-05-25 Depuy Spine, Inc. Adjustable bone screw assembly
GB0521582D0 (en) 2005-10-22 2005-11-30 Depuy Int Ltd An implant for supporting a spinal column
US7704271B2 (en) 2005-12-19 2010-04-27 Abdou M Samy Devices and methods for inter-vertebral orthopedic device placement
GB0600662D0 (en) 2006-01-13 2006-02-22 Depuy Int Ltd Spinal support rod kit
US8348952B2 (en) 2006-01-26 2013-01-08 Depuy International Ltd. System and method for cooling a spinal correction device comprising a shape memory material for corrective spinal surgery
DE602006008266D1 (en) * 2006-02-21 2009-09-17 Stryker Trauma Sa Clamping and joint element
US8025681B2 (en) 2006-03-29 2011-09-27 Theken Spine, Llc Dynamic motion spinal stabilization system
US7758584B2 (en) 2006-04-11 2010-07-20 Synthes Usa, Llc Minimally invasive fixation system
US8133262B2 (en) 2006-04-28 2012-03-13 Depuy Spine, Inc. Large diameter bone anchor assembly
US20080015596A1 (en) * 2006-04-28 2008-01-17 Whipple Dale E Large diameter multiple piece bone anchor assembly
US20080015576A1 (en) * 2006-04-28 2008-01-17 Whipple Dale E Large diameter bone anchor assembly
US8361129B2 (en) 2006-04-28 2013-01-29 Depuy Spine, Inc. Large diameter bone anchor assembly
US8172882B2 (en) 2006-06-14 2012-05-08 Spartek Medical, Inc. Implant system and method to treat degenerative disorders of the spine
US7959564B2 (en) 2006-07-08 2011-06-14 Stephen Ritland Pedicle seeker and retractor, and methods of use
US8162990B2 (en) 2006-11-16 2012-04-24 Spine Wave, Inc. Multi-axial spinal fixation system
FR2908627B1 (en) * 2006-11-20 2009-07-03 Tornier Sas PROTHETIC OR OSTEOSYNTHESIS DEVICE WITH A SLICED OLIVE
US8147527B2 (en) 2006-11-28 2012-04-03 Zimmer Spine, Inc. Adjustable occipital plate
US8475498B2 (en) 2007-01-18 2013-07-02 Roger P. Jackson Dynamic stabilization connecting member with cord connection
US8366745B2 (en) 2007-05-01 2013-02-05 Jackson Roger P Dynamic stabilization assembly having pre-compressed spacers with differential displacements
US8012177B2 (en) 2007-02-12 2011-09-06 Jackson Roger P Dynamic stabilization assembly with frusto-conical connection
JP4221032B2 (en) * 2007-02-14 2009-02-12 昭和医科工業株式会社 connector
JP4221033B2 (en) * 2007-02-14 2009-02-12 昭和医科工業株式会社 Vertebral connecting member and nut driver
US10383660B2 (en) 2007-05-01 2019-08-20 Roger P. Jackson Soft stabilization assemblies with pretensioned cords
US8197517B1 (en) 2007-05-08 2012-06-12 Theken Spine, Llc Frictional polyaxial screw assembly
US7942911B2 (en) 2007-05-16 2011-05-17 Ortho Innovations, Llc Polyaxial bone screw
US7951173B2 (en) 2007-05-16 2011-05-31 Ortho Innovations, Llc Pedicle screw implant system
US7947065B2 (en) 2008-11-14 2011-05-24 Ortho Innovations, Llc Locking polyaxial ball and socket fastener
US8197518B2 (en) 2007-05-16 2012-06-12 Ortho Innovations, Llc Thread-thru polyaxial pedicle screw system
US7942910B2 (en) 2007-05-16 2011-05-17 Ortho Innovations, Llc Polyaxial bone screw
US7942909B2 (en) 2009-08-13 2011-05-17 Ortho Innovations, Llc Thread-thru polyaxial pedicle screw system
EP2160158A4 (en) 2007-05-31 2013-06-26 Roger P Jackson Dynamic stabilization connecting member with pre-tensioned solid core
US8048115B2 (en) 2007-06-05 2011-11-01 Spartek Medical, Inc. Surgical tool and method for implantation of a dynamic bone anchor
US8105356B2 (en) 2007-06-05 2012-01-31 Spartek Medical, Inc. Bone anchor with a curved mounting element for a dynamic stabilization and motion preservation spinal implantation system and method
US8114134B2 (en) 2007-06-05 2012-02-14 Spartek Medical, Inc. Spinal prosthesis having a three bar linkage for motion preservation and dynamic stabilization of the spine
WO2008151091A1 (en) 2007-06-05 2008-12-11 Spartek Medical, Inc. A deflection rod system for a dynamic stabilization and motion preservation spinal implantation system and method
US8083772B2 (en) 2007-06-05 2011-12-27 Spartek Medical, Inc. Dynamic spinal rod assembly and method for dynamic stabilization of the spine
US8070776B2 (en) 2007-06-05 2011-12-06 Spartek Medical, Inc. Deflection rod system for use with a vertebral fusion implant for dynamic stabilization and motion preservation spinal implantation system and method
US8021396B2 (en) 2007-06-05 2011-09-20 Spartek Medical, Inc. Configurable dynamic spinal rod and method for dynamic stabilization of the spine
US8109970B2 (en) 2007-06-05 2012-02-07 Spartek Medical, Inc. Deflection rod system with a deflection contouring shield for a spine implant and method
US8092501B2 (en) 2007-06-05 2012-01-10 Spartek Medical, Inc. Dynamic spinal rod and method for dynamic stabilization of the spine
US8313515B2 (en) 2007-06-15 2012-11-20 Rachiotek, Llc Multi-level spinal stabilization system
CN102525627B (en) 2007-07-19 2014-12-10 新特斯有限责任公司 Clamps used for interconnecting a bone anchor to a rod
US8911477B2 (en) 2007-10-23 2014-12-16 Roger P. Jackson Dynamic stabilization member with end plate support and cable core extension
GB0720762D0 (en) 2007-10-24 2007-12-05 Depuy Spine Sorl Assembly for orthopaedic surgery
US8007522B2 (en) 2008-02-04 2011-08-30 Depuy Spine, Inc. Methods for correction of spinal deformities
US20090216273A1 (en) * 2008-02-19 2009-08-27 U. S. Spinal Technologies, L.L.C. Curved facet joint fixation assembly and associated implantation tool and method
US8333792B2 (en) 2008-02-26 2012-12-18 Spartek Medical, Inc. Load-sharing bone anchor having a deflectable post and method for dynamic stabilization of the spine
US8083775B2 (en) 2008-02-26 2011-12-27 Spartek Medical, Inc. Load-sharing bone anchor having a natural center of rotation and method for dynamic stabilization of the spine
US8337536B2 (en) 2008-02-26 2012-12-25 Spartek Medical, Inc. Load-sharing bone anchor having a deflectable post with a compliant ring and method for stabilization of the spine
US8057517B2 (en) 2008-02-26 2011-11-15 Spartek Medical, Inc. Load-sharing component having a deflectable post and centering spring and method for dynamic stabilization of the spine
US8048125B2 (en) 2008-02-26 2011-11-01 Spartek Medical, Inc. Versatile offset polyaxial connector and method for dynamic stabilization of the spine
US8211155B2 (en) 2008-02-26 2012-07-03 Spartek Medical, Inc. Load-sharing bone anchor having a durable compliant member and method for dynamic stabilization of the spine
US20100030224A1 (en) 2008-02-26 2010-02-04 Spartek Medical, Inc. Surgical tool and method for connecting a dynamic bone anchor and dynamic vertical rod
US8267979B2 (en) 2008-02-26 2012-09-18 Spartek Medical, Inc. Load-sharing bone anchor having a deflectable post and axial spring and method for dynamic stabilization of the spine
US8097024B2 (en) 2008-02-26 2012-01-17 Spartek Medical, Inc. Load-sharing bone anchor having a deflectable post and method for stabilization of the spine
US20100076490A1 (en) * 2008-02-28 2010-03-25 Jonathan Greenwald Facet joint broaching instrument, implant, and associated method
US8709015B2 (en) 2008-03-10 2014-04-29 DePuy Synthes Products, LLC Bilateral vertebral body derotation system
US8608746B2 (en) * 2008-03-10 2013-12-17 DePuy Synthes Products, LLC Derotation instrument with reduction functionality
US20090234394A1 (en) * 2008-03-11 2009-09-17 David Crook Unilateral facet bolt inserter
US20090264933A1 (en) * 2008-04-22 2009-10-22 Warsaw Orthopedic, Inc. Anchors for securing a rod to a vertebral member
US10973556B2 (en) * 2008-06-17 2021-04-13 DePuy Synthes Products, Inc. Adjustable implant assembly
JP2012529969A (en) 2008-08-01 2012-11-29 ロジャー・ピー・ジャクソン Longitudinal connecting member with tensioning cord with sleeve
US8075603B2 (en) 2008-11-14 2011-12-13 Ortho Innovations, Llc Locking polyaxial ball and socket fastener
US8241341B2 (en) 2009-03-20 2012-08-14 Spinal Usa, Inc. Pedicle screws and methods of using the same
KR101767274B1 (en) 2009-05-20 2017-08-10 신세스 게엠바하 Patient-mounted retraction
DE102010016812A1 (en) * 2009-06-08 2011-03-17 Z.-Medical Gmbh & Co. Kg bone screw
US11229457B2 (en) 2009-06-15 2022-01-25 Roger P. Jackson Pivotal bone anchor assembly with insert tool deployment
US9668771B2 (en) 2009-06-15 2017-06-06 Roger P Jackson Soft stabilization assemblies with off-set connector
US11464549B2 (en) 2009-06-15 2022-10-11 Roger P. Jackson Pivotal bone anchor assembly with horizontal tool engagement grooves and insert with upright arms having flared outer portions
EP2757988A4 (en) 2009-06-15 2015-08-19 Jackson Roger P Polyaxial bone anchor with pop-on shank and winged insert with friction fit compressive collet
US8998959B2 (en) 2009-06-15 2015-04-07 Roger P Jackson Polyaxial bone anchors with pop-on shank, fully constrained friction fit retainer and lock and release insert
AU2010303934B2 (en) 2009-10-05 2014-03-27 Roger P. Jackson Polyaxial bone anchor with non-pivotable retainer and pop-on shank, some with friction fit
US8361123B2 (en) 2009-10-16 2013-01-29 Depuy Spine, Inc. Bone anchor assemblies and methods of manufacturing and use thereof
EP2506785A4 (en) 2009-12-02 2014-10-15 Spartek Medical Inc Low profile spinal prosthesis incorporating a bone anchor having a deflectable post and a compound spinal rod
US8764806B2 (en) 2009-12-07 2014-07-01 Samy Abdou Devices and methods for minimally invasive spinal stabilization and instrumentation
US8808335B2 (en) * 2010-03-08 2014-08-19 Miami Device Solutions, Llc Locking element for a polyaxial bone anchor, bone plate assembly and tool
US8535318B2 (en) 2010-04-23 2013-09-17 DePuy Synthes Products, LLC Minimally invasive instrument set, devices and related methods
US8518085B2 (en) 2010-06-10 2013-08-27 Spartek Medical, Inc. Adaptive spinal rod and methods for stabilization of the spine
EP2992845A1 (en) * 2010-07-08 2016-03-09 X-spine Systems, Inc. Spinal stabilization system utilizing screw and external facet and/or lamina fixation
US9084634B1 (en) 2010-07-09 2015-07-21 Theken Spine, Llc Uniplanar screw
US10603083B1 (en) 2010-07-09 2020-03-31 Theken Spine, Llc Apparatus and method for limiting a range of angular positions of a screw
EP2611373B1 (en) 2010-08-30 2015-11-04 Zimmer Spine, Inc. Polyaxial pedicle screw
JP2013540468A (en) 2010-09-08 2013-11-07 ロジャー・ピー・ジャクソン Dynamic fixing member having an elastic part and an inelastic part
GB2502449A (en) * 2010-11-02 2013-11-27 Roger P Jackson Polyaxial bone anchor with pop-on shank and pivotable retainer
EP2460484A1 (en) * 2010-12-01 2012-06-06 FACET-LINK Inc. Variable angle bone screw fixation assembly
WO2012128825A1 (en) 2011-03-24 2012-09-27 Jackson Roger P Polyaxial bone anchor with compound articulation and pop-on shank
AU2012262698B2 (en) 2011-05-27 2016-07-21 Synthes Gmbh Minimally invasive spinal fixation system including vertebral alignment features
US9005249B2 (en) 2011-07-11 2015-04-14 Life Spine, Inc. Spinal rod connector assembly
US8845728B1 (en) 2011-09-23 2014-09-30 Samy Abdou Spinal fixation devices and methods of use
US8911479B2 (en) 2012-01-10 2014-12-16 Roger P. Jackson Multi-start closures for open implants
US8430916B1 (en) 2012-02-07 2013-04-30 Spartek Medical, Inc. Spinal rod connectors, methods of use, and spinal prosthesis incorporating spinal rod connectors
US20130226240A1 (en) 2012-02-22 2013-08-29 Samy Abdou Spinous process fixation devices and methods of use
US9198767B2 (en) 2012-08-28 2015-12-01 Samy Abdou Devices and methods for spinal stabilization and instrumentation
US9782204B2 (en) 2012-09-28 2017-10-10 Medos International Sarl Bone anchor assemblies
US9320617B2 (en) 2012-10-22 2016-04-26 Cogent Spine, LLC Devices and methods for spinal stabilization and instrumentation
US8911478B2 (en) 2012-11-21 2014-12-16 Roger P. Jackson Splay control closure for open bone anchor
US10058354B2 (en) 2013-01-28 2018-08-28 Roger P. Jackson Pivotal bone anchor assembly with frictional shank head seating surfaces
US8852239B2 (en) 2013-02-15 2014-10-07 Roger P Jackson Sagittal angle screw with integral shank and receiver
US10342582B2 (en) 2013-03-14 2019-07-09 DePuy Synthes Products, Inc. Bone anchor assemblies and methods with improved locking
US9775660B2 (en) 2013-03-14 2017-10-03 DePuy Synthes Products, Inc. Bottom-loading bone anchor assemblies and methods
US20140277153A1 (en) 2013-03-14 2014-09-18 DePuy Synthes Products, LLC Bone Anchor Assemblies and Methods With Improved Locking
US9259247B2 (en) 2013-03-14 2016-02-16 Medos International Sarl Locking compression members for use with bone anchor assemblies and methods
US9724145B2 (en) 2013-03-14 2017-08-08 Medos International Sarl Bone anchor assemblies with multiple component bottom loading bone anchors
US9453526B2 (en) 2013-04-30 2016-09-27 Degen Medical, Inc. Bottom-loading anchor assembly
CN103462676B (en) * 2013-08-30 2016-05-25 深圳先进技术研究院 Vertebrae fixture and angle adjusting mechanism thereof
DE102014219270A1 (en) 2013-10-01 2015-04-16 Silony Medical International AG Polyaxial bone screw for surgical medical purposes and osteosynthesis device
US9566092B2 (en) 2013-10-29 2017-02-14 Roger P. Jackson Cervical bone anchor with collet retainer and outer locking sleeve
US9717533B2 (en) 2013-12-12 2017-08-01 Roger P. Jackson Bone anchor closure pivot-splay control flange form guide and advancement structure
US9451993B2 (en) 2014-01-09 2016-09-27 Roger P. Jackson Bi-radial pop-on cervical bone anchor
US9687320B2 (en) 2014-02-17 2017-06-27 Sterngold Dental, Llc Dental device for anchoring a denture to an implant
US10064658B2 (en) 2014-06-04 2018-09-04 Roger P. Jackson Polyaxial bone anchor with insert guides
US9597119B2 (en) 2014-06-04 2017-03-21 Roger P. Jackson Polyaxial bone anchor with polymer sleeve
US10543021B2 (en) 2014-10-21 2020-01-28 Roger P. Jackson Pivotal bone anchor assembly having an open ring positioner for a retainer
US9924975B2 (en) 2014-10-21 2018-03-27 Roger P. Jackson Bone anchor having a snap-fit assembly
US11957635B2 (en) 2015-06-20 2024-04-16 Therabody, Inc. Percussive therapy device with variable amplitude
US10265104B2 (en) 2015-09-23 2019-04-23 Deniz Ufuk Erbulut Pedicle screw
US9820780B2 (en) 2015-09-30 2017-11-21 Amendia, Inc. Angled offset tulip assembly
US10857003B1 (en) 2015-10-14 2020-12-08 Samy Abdou Devices and methods for vertebral stabilization
ES2878182T3 (en) 2015-12-17 2021-11-18 Ali Fahir Ozer Double-headed pedicle screw
US10856919B2 (en) * 2016-02-22 2020-12-08 Life Spine, Inc. Lateral spine plate with set screw locking of bone screws
US10744000B1 (en) 2016-10-25 2020-08-18 Samy Abdou Devices and methods for vertebral bone realignment
US10973648B1 (en) 2016-10-25 2021-04-13 Samy Abdou Devices and methods for vertebral bone realignment
WO2018183489A1 (en) 2017-03-30 2018-10-04 K2M, Inc. Modular screw
US11419639B2 (en) 2017-03-30 2022-08-23 K2M, Inc. Modular offset screw
US11259845B2 (en) 2017-03-30 2022-03-01 K2M, Inc. Bone anchor apparatus and method of use thereof
US10470970B2 (en) * 2017-07-11 2019-11-12 Theragun, LLC Attachment system for a plurality of treatment members
US10617588B2 (en) 2017-07-11 2020-04-14 Theragun, Inc. Attachment system for a plurality of treatment members
US10507043B1 (en) 2017-10-11 2019-12-17 Seaspine Orthopedics Corporation Collet for a polyaxial screw assembly
EP3482703A1 (en) * 2017-11-10 2019-05-15 Biedermann Technologies GmbH & Co. KG Distraction and compression assembly, in particular for bone surgery
USD951470S1 (en) 2018-03-27 2022-05-10 Therabody, Inc. Vibration massage device
BR112021003874A2 (en) * 2018-08-29 2021-05-18 Amdt Holdings, Inc. adjustable support sets for external fastening systems
US11179248B2 (en) 2018-10-02 2021-11-23 Samy Abdou Devices and methods for spinal implantation
US11490932B2 (en) * 2018-11-01 2022-11-08 Next Orthosurgical, Inc. Polyaxial pedicle screw system
US11890253B2 (en) 2018-12-26 2024-02-06 Therabody, Inc. Percussive therapy device with interchangeable modules
US11813221B2 (en) 2019-05-07 2023-11-14 Therabody, Inc. Portable percussive massage device
US11376046B1 (en) * 2021-02-01 2022-07-05 Warsaw Orthopedic, Inc. Spinal implant system and method
US11751915B2 (en) 2021-07-09 2023-09-12 Roger P. Jackson Modular spinal fixation system with bottom-loaded universal shank heads
US11857481B2 (en) 2022-02-28 2024-01-02 Therabody, Inc. System for electrical connection of massage attachment to percussive therapy device

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2071471T3 (en) * 1991-03-11 1995-06-16 Straumann Inst Ag AUXILIARY MEANS TO ATTACH AND SUPPORT A PROTECTION IN A MAXILLARY BONE.
DE4307576C1 (en) 1993-03-10 1994-04-21 Biedermann Motech Gmbh Bone screw esp. for spinal column correction - has U=shaped holder section for receiving straight or bent rod
DE59504219D1 (en) * 1995-02-17 1998-12-17 Sulzer Orthopaedie Ag Connection system for pedicle screws
US5591166A (en) * 1995-03-27 1997-01-07 Smith & Nephew Richards, Inc. Multi angle bone bolt
DE19542116A1 (en) 1995-11-11 1997-05-15 Peter Brehm Device for fixing implant to bone
US5752957A (en) * 1997-02-12 1998-05-19 Third Millennium Engineering, Llc Polyaxial mechanism for use with orthopaedic implant devices

Also Published As

Publication number Publication date
JPH11253454A (en) 1999-09-21
ATE219910T1 (en) 2002-07-15
ES2180134T3 (en) 2003-02-01
EP0938872A1 (en) 1999-09-01
EP0938872B1 (en) 2002-07-03
DE59804657D1 (en) 2002-08-08
CA2256055A1 (en) 1999-08-02
JP4131766B2 (en) 2008-08-13
US6146383A (en) 2000-11-14
EP0933065A1 (en) 1999-08-04

Similar Documents

Publication Publication Date Title
CA2256055C (en) Pivotal securing system at a bone screw
US7682379B2 (en) Device for osteosynthesis
EP0613664B1 (en) A device for setting a spline
EP1839606B1 (en) Locking assembly for securing a rod member in a receiver part for use in spinal or trauma surgery, bone anchoring device with such a locking assembly and tool therefor
US5738685A (en) Osteosynthesis device
CA2275250C (en) Device for connecting a longitudinal support to a pedicle screw
US8784455B2 (en) Bone anchoring device
CA2289629C (en) Device for connecting a longitudinal support with a pedicle screw
US8998965B2 (en) Bone anchoring device
CN101347351B (en) Bone anchoring device
AU2002347177B2 (en) Device for osteosynthesis
EP1842503A1 (en) Angled polyaxial bone anchoring device
US20100249846A1 (en) Variable height, multi-axial bone screw assembly
US20060271193A1 (en) Device for connecting a longitudinal member to a bone
WO2007114834A1 (en) Multi-axial, double locking bone screw assembly
KR20080018814A (en) Bone anchoring device
ZA200404242B (en) Device for performing osteosynthesis.

Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed

Effective date: 20151215