US20180161070A1 - Closure for open-headed medical implant - Google Patents

Closure for open-headed medical implant Download PDF

Info

Publication number
US20180161070A1
US20180161070A1 US15/883,993 US201815883993A US2018161070A1 US 20180161070 A1 US20180161070 A1 US 20180161070A1 US 201815883993 A US201815883993 A US 201815883993A US 2018161070 A1 US2018161070 A1 US 2018161070A1
Authority
US
United States
Prior art keywords
surface
closure
body
medical implant
closed ring
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.)
Granted
Application number
US15/883,993
Other versions
US10004541B1 (en
Inventor
Roger P. Jackson
Original Assignee
Roger P. Jackson
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
Priority to US09/732,528 priority Critical patent/US6454772B1/en
Priority to US10/014,434 priority patent/US6726687B2/en
Priority to US10/142,614 priority patent/US8377100B2/en
Priority to US13/694,970 priority patent/US20130144347A1/en
Priority to US14/509,496 priority patent/US20150025580A1/en
Priority to US15/144,915 priority patent/US9907577B2/en
Priority to US15/883,993 priority patent/US10004541B1/en
Application filed by Roger P. Jackson filed Critical Roger P. Jackson
Publication of US20180161070A1 publication Critical patent/US20180161070A1/en
Application granted granted Critical
Publication of US10004541B1 publication Critical patent/US10004541B1/en
Application status is Active legal-status Critical
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/68Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/70Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
    • A61B17/7001Screws or hooks combined with longitudinal elements which do not contact vertebrae
    • A61B17/7032Screws or hooks with U-shaped head or back through which longitudinal rods pass
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/68Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/685Elements to be fitted on the end of screws or wires, e.g. protective caps
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/68Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/686Plugs, i.e. elements forming interface between bone hole and implant or fastener, e.g. screw
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/68Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/70Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
    • A61B17/7074Tools specially adapted for spinal fixation operations other than for bone removal or filler handling
    • A61B17/7076Tools specially adapted for spinal fixation operations other than for bone removal or filler handling for driving, positioning or assembling spinal clamps or bone anchors specially adapted for spinal fixation
    • A61B17/7082Tools specially adapted for spinal fixation operations other than for bone removal or filler handling for driving, positioning or assembling spinal clamps or bone anchors specially adapted for spinal fixation for driving, i.e. rotating, screws or screw parts specially adapted for spinal fixation, e.g. for driving polyaxial or tulip-headed screws
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/68Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/70Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
    • A61B17/7074Tools specially adapted for spinal fixation operations other than for bone removal or filler handling
    • A61B17/7091Tools specially adapted for spinal fixation operations other than for bone removal or filler handling for applying, tightening or removing longitudinal element-to-bone anchor locking elements, e.g. caps, set screws, nuts or wedges
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B90/00Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
    • A61B90/03Automatic limiting or abutting means, e.g. for safety
    • A61B2090/037Automatic limiting or abutting means, e.g. for safety with a frangible part, e.g. by reduced diameter

Abstract

A closure for an open headed medical implant, such as a bone screw. The closure having a cylindrical body having an axis of rotation and also having a radially outer surface with a thread or other guide and advancement structure thereon. The body having a plurality of apertures that open onto a top surface of the body and that are parallel to but spaced from the axis of rotation. The closure also has a break-off head centrally attached by a neck to the top surface of the body.

Description

    CROSS REFERENCE TO RELATED APPLICATIONS
  • The present application is a continuation of U.S. application Ser. No. 15/144,915, filed May 3, 2016, which is a continuation of U.S. application Ser. No. 14/509,496 filed Oct. 8, 2014, now abandoned, which is a continuation of U.S. application Ser. No. 13/694,970, filed Jan. 23, 2013, now abandoned, which is a continuation of U.S. application Ser. No. 10/142,614, filed May 9, 2002, now U.S. Pat. No. 8,377,100 which is a continuation-in-part of U.S. application Ser. No. 10/014,434 filed Nov. 9, 2001, now U.S. Pat. No. 6,726,687, which is a continuation-in-part of U.S. application Ser. No. 09/732,528, filed Dec. 7, 2000, now U.S. Pat. No. 6,454,772, each of which is fully incorporated by reference herein for all purposes.
  • BACKGROUND OF THE INVENTION
  • The present invention is directed to an open headed medical implant and, in particular, to a closure for closing the head of an open headed bone screw, hook or the like.
  • Bone screws are used especially in spinal surgery to support and position various implants needed to repair a spine that has suffered injury, illness or genetic defect. Bone screws of this type are screwed into the vertebrae of the spine and have a head that projects outside the bone which receives other implants, such as rods, that extend along the spine. Bone screws are of two general types which are either open headed or closed headed. Hooks and certain other implants also sometimes have open heads. The present application is directed to open headed bone screws and related implants such as hooks and the like that have such an open head to receive another implant.
  • In open headed bone screws and related implants, the head includes two upright arms that form a channel therebetween. The channel is sized to receive a rod or the like and is open to make it easier to place the rod in the head. The rod must then be tightly held or locked in the head to prevent relative movement between implants after the surgery. To hold the rod in the head, plugs have been used that are screwed into threads on the interior surfaces of the arms.
  • The present invention is directed especially to improvements in such plugs or closures that make them easier to insert in the head, that better ensure that the plug effectively secures the rod so that the rod does not later slip, that allow the plugs to be easily removed should the overall implant system require rearrangement and which provide a comparatively low profile, so as reduce trauma and irritation to the surrounding tissues of the patient.
  • SUMMARY OF THE INVENTION
  • A closure is provided for an open headed implant, especially a bone screw or hook for use in spinal surgery. The closure has a cylindrical shaped body with an axis of rotation. The body has a radially outer surface that has a thread or other guide and advancement structure thereon that is sized and shaped to be received in mating threads or structure on interior surfaces of arms of the implant head. The closure is operably rotated and advanced into the head of the implant to capture a rod or other part of an overall spinal support system. The closure captures and locks such a rod in position relative to the implant to prevent rotation or axial movement between the joined parts.
  • The closure body has a top surface and a bottom surface with a plurality of cylindrical bores extending parallel to the axis of rotation into the body from the top surface or other removal apertures. The bores or apertures are positioned in spaced relationship to one another and to the axis of rotation. The bores or apertures are sized and shaped to cooperatively mate with posts on a tool to allow removal of the closure from the implant after insertion, should such be necessary.
  • The closure also includes a break-off head centrally mounted by a neck on the top surface of the body. The break-off head is adapted to receive a socket tool and be rotated thereby during installation. The break-off head is also designed to break from the body at a torque limiting or break-off region or location which is preferably whereat the neck intersects with the top surface of the body, when a preselected torque is applied to the break-off head. When the break-off head is broken away, the bores or apertures become exposed and are mateable with a removal tool should it become necessary to remove the closure.
  • In a second embodiment the body includes a central threaded bore that receives a set screw. The body is then used for capture of a rod or the like and the set screw is used to lock the rod or the like in position relative to the implant.
  • In a third embodiment, a body includes both a break-off head and a central threaded bore that is covered by the break-off head until the head breaks away, after which the threaded bore is exposed at the top surface of the body to receive a set screw.
  • Objects and Advantages of the Invention
  • Therefore, the objects of the present invention are: to provide a closure for an open ended implant that provides a plurality of spaced removal apertures that are offset from an axis of rotation of the closure and that cooperate with a tool to allow removal of the closure; to provide such an implant having a closure with a break off head for mating with an insertion tool for inserting the closure into the implant; to provide such an implant wherein the removal apertures are not accessible for effective access, when the closure is in the implant until the break-off head is broken away; to provide such an implant that strongly grips a rod or the like received in the implant and that provides a relatively low profile; and to provide such an implant and closure therefor that is relatively easy to use, comparatively easy to produce and is especially well suited for the intended use thereof.
  • Other objects and advantages of this invention will become apparent from the following description taken in conjunction with the accompanying drawings wherein are set forth, by way of illustration and example, certain embodiments of this invention.
  • The drawings constitute a part of this specification and include exemplary embodiments of the present invention and illustrate various objects and features thereof.
  • BRIEF DESCRIPTION OF THE DRAWINGS
  • FIG. 1 is an exploded perspective view of a bone screw type implant and closure in accordance with the present invention prior to insertion of the closure into a head of the bone screw.
  • FIG. 2 is a fragmentary side elevational view of the bone screw with a rod and the closure received therein and with a tool being utilized to insert the closure and provide torque to the break-off head of the closure and further with the bone screw shown embedded in a bone that is indicated by phantom lines.
  • FIG. 3 is a fragmentary and exploded side elevational view of the bone screw, rod and closure with the break-off head of the closure being shown broken therefrom.
  • FIG. 4 is a fragmentary top plan view of the bone screw, rod and closure with the break-off head removed.
  • FIG. 5 is a top plan view of the closure with the break-off head broken therefrom, but shown in phantom.
  • FIG. 6 is a bottom plan view of the closure.
  • FIG. 7 is an exploded and fragmentary side elevational view of the bone screw, rod and closure showing a removal tool positioned above the closure.
  • FIG. 8 is a fragmentary and enlarged view of the bone screw, rod and closure shown in FIG. 7 with the removal tool inserted into the closure and with portions of the bone screw and closure broken away to show detail thereof.
  • FIG. 9 is an exploded perspective view of a modified bone screw and closure in accordance with the present invention, also showing a rod received in a head of the bone screw in phantom lines and a tool for use in inserting the closure into and removing the closure from the head of the bone screw.
  • FIG. 10 is a side elevational view of the bone screw, rod, closure and tool of the second embodiment of the invention with portions broken away to show internal detail thereof.
  • FIG. 11 is a fragmentary side elevational view of the bone screw, rod and closure also showing a set screw that is positioned to be received in the closure.
  • FIG. 12 is a fragmentary side elevational view showing the bone screw, rod, closure and closure set screw positioned in a vertebrae that is shown in cross-section.
  • FIG. 13 is a front elevational view of the bone screw, rod and closure shown mounted in a vertebrae that is shown in cross-section.
  • FIG. 14 is a side elevational view of a closure in accordance with a second modified embodiment of the present invention.
  • FIG. 15 is a top plan view of the closure of the second modified embodiment with a break-off head thereof broken away.
  • FIG. 16 is a bottom plan view of the closure of the second modified embodiment of the invention.
  • DETAILED DESCRIPTION OF THE INVENTION
  • As required, detailed embodiments of the present invention are disclosed herein; however, it is to be understood that the disclosed embodiments are merely exemplary of the invention, which may be embodied in various forms. Therefore, specific structural and functional details disclosed herein are not to be interpreted as limiting, but merely as a basis for the claims and as a representative basis for teaching one skilled in the art to variously employ the present invention in virtually any appropriately detailed structure.
  • The reference numeral 1 generally indicates a medical implant in accordance with the present invention. The implant 1 includes a bone screw 5, a closure 6 for the bone screw 5 and a rod 7. The implant 1 is received in a vertebrae 9, typically in conjunction with other implants that are not shown. The closure 6 also functions in conjunction with other open- headed implants, such as hooks and the like.
  • The bone screw 5 includes a shank 12 and a head 13. The shank 12 is threaded with a coarse helicably wound flighting-like thread 16 that is threaded into the vertebrae 9, so as to secure and support the bone screw 5 and allow the head 13 to extend from the vertebrae 9.
  • The bone screw head 13 includes a base 20 with a pair of upstanding spaced arms 21 and 22 on opposite sides of the base 20 forming a generally U-shaped configuration, when viewed from the side, and defining a channel 23 therebetween. The channel 23 is sized and shaped to receive the rod 7.
  • The arms 21 and 22 each include an interior surface 26 and 27 respectively. The interior surfaces 26 and 27 have a guide and advancement structure which in the illustrated embodiment is a partial helical wound thread 29 on each. While the illustrated thread 29 is a conventional V-shaped thread, the purpose of this thread is to engage similar threads on the closure 6 to guide the closure 6 relative to the bone screw 5, as discussed below, and to provide for biased advancement of the closure 6 along the central axis A thereof relative to the bone screw 5 upon rotation of the closure 6. It is foreseen that other structures including other types of threads, such as buttress and reverse angle threads, and non threads, such as helical wound flanges or the like having interlocking surfaces, could be alternatively used for this purpose. Therefore, the illustrated internal partial or discontinuous threads on the bone screw arms 21 and 22 along with the mating thread on the closure 5 provide guide and advancement structure that operably positions and advances the closure 6 relative to the bone screw 5 during installation. The threaded surfaces 26 and 27 are spaced and not connected so as to present only a partial threadform which each face one another and cooperate with the closure 6, as is noted below. In the illustrated embodiment, the threaded surfaces 26 and 27 extend from a top 30 of the bone screw 5 only partially down the arms 21 and 22.
  • The closure 6 includes a body 35 and a torque limiting break-off head 36. The closure body 35 is generally cylindrical in shape and has a radially outward external surface 40 that extends 360° about an axis of rotation indicated by the reference letter “A”. In the present embodiment, the surface 40 has a portion of the mating guide and advancement structure thereon which in the illustrated embodiment is a thread 41 that mates with the partial thread 29 on the bone screw 5 and biases the closure 6 forward due to interaction of the threads 29 and 41 upon clockwise rotation of the closure 6. As noted before, this function can be provided by alternative types of threads or other non threaded structures such as a helically wound flange that slidably mates with a similar structure on the bone screw 5. In the illustrated embodiment the threaded surface 40 has a threadform located thereon that entirely encircles the outer surface 40 of the body 35 and extends entirely from top to bottom. The surface 40 is provided with a thread 41 that is sized, shaped and configured to threadably mate with the threaded surfaces 26 and 27 of the arms 21 and 22, so that the closure body 35 may be threaded into the bone screw head 13, as is shown in FIG. 2.
  • The closure body 35 also includes at least one removal aperture and in the illustrated embodiment such an aperture is provided by three bores 44, 45 and 46 that are aligned to be parallel with the axis of rotation. The bores 44, 45 and 46 are spaced both from the axis of rotation A and from a periphery 48 of a top 49 of the body. The bores 44, 45 and 46 extend from the body top 49 to a bottom surface 50 of the body 35 in the illustrated embodiment. Preferably the bores 44, 45 and 46 are equally spaced from one another and are approximately equally radially spaced outward from the axis of rotation A. In the illustrated embodiment, the bores 44, 45 and 46 are spaced at approximately 120° from one another. While three cylindrical bores are shown and function as the removal aperture in the illustrated embodiment, it is foreseen that various numbers of openings could be equivalently used and/or such apertures may be of various shapes, such as round, square or kidney bean in cross section, and may be pass through from top 49 to bottom surface 50 of the closure 6 or may just pass through the top 49 thereof and extend partially therethrough.
  • The break-off head 36 includes a neck 54 that joins with the body top 49 at a torque limiting region or break-off location 56. Preferably the break-off location 56 is generally coplanar with the body top 49, so the break-off location 56 is clean and low profile after such breakoff. The break-off location 56 is normally determined by the location whereat the neck 54 is smallest in cross-section or the location 56 can be triggered by an external groove and other devices known for this purpose. The neck 54 also converges somewhat from the remainder of the break-off head 36 to the break-off location 56.
  • The break-off head 36 includes a number of facets or panels 60 which are aligned to be parallel to the axis of rotation A and which are joined together to form a polyhedral shaped surface 61 typically associated with a structure to be received in a socket-type tool. The combined surface 61 of the facets 60 forms such a polyhedral shape. A top surface 63 of the break-off head 36 has axially located therein a non-threaded bore 65 for operably receiving a tool during implantation. The bottom surface 50 of the body 35 includes a conical shaped and axially aligned point 67 for engaging and preferably biting into the rod 7, so as to provide an improved grip on the rod to prevent rotation or axial movement thereof relative to the bone screw 5. It is foreseen that the bottom surface 50 may be flat or otherwise shaped and may include other structure to increase frictional engagement between the closure 6 and the rod 7, such as: knurling; a ring with a sharp lower edge, especially when used in conjunction with and surrounding the point 67; or the like.
  • A tool 70 is illustrated in FIG. 2 for cooperatively inserting the closure 6 into the bone screw head 13. The tool 70 has an elongate shank 71 with a handle 72 sized and shaped to allow a user to rotate the tool 70 clockwise about the axis of rotation A associated with the closure 6. The tool 70 also has a socket type head 74 opposite the handle 72 that is sized and shaped to snugly receive the outer surface 61 of the break off head 36 as is shown in FIG. 2.
  • During assembly, the rod 7, which is elongate and generally circular in cross-section, is placed within the bone screw channel 23 and the closure 6 is then threaded into the bone screw head 13. The tool 70 is used to rotate the closure 6 until it engages the rod 7 and urges the rod 7 to seat tightly and snugly on the bone screw head base 20 at the bottom of the channel 23. The point 67 engages and digs into the rod 7. As additional torque is applied to the tool 70, a preselected torque is eventually reached (for example 90 inch pounds) whereat the break-off head 36 breaks from the closure body 35 at the break-off location 56 and separates therefrom, such as is shown in FIG. 3.
  • FIGS. 3 and 4 illustrate the closure 6 operably positioned within the bone screw head 13. FIG. 5 illustrates the closure 6 with the break-off head 36 removed, but shown in phantom to illustrate the position of the break-off head 36 relative to the bores 44, 45 and 46.
  • In certain circumstances, it is necessary to remove the closure 6 to readjust the position of the rod 7 or to make some other change in the implant 1 configuration. As mentioned before, the implant 1 is typically a part of an overall system and is normally used to provide support to damaged, injured or missing vertebra of the spinal column. When it is necessary to readjust the overall system, the closure 6 is removed by utilization of the second tool 78. The tool 78 includes a shank 80 that has an axis of rotation during use that is coaxial with the axis of rotation A of the closure 6. The shank 80 is attached at one end to a handle 81 to provide a grasp and a means of turning the tool 78 by a user. Opposite the handle 81, the shank 80 has a flat surface 83 from which three pegs or posts 84, 85 and 86 project.
  • The posts 84, 85 and 86 are parallel to the axis of rotation of the tool 78 and are sized, shaped and positioned so as to be snugly receivable in the closure bores 44, 45 and 46, subsequent to removal of the break-off head 36. The tool 78 is shown in position above the closure body 35 in FIG. 7 just prior to insertion of the posts 84, 85 and 86 into respective bores 44, 45 and 46. The tool 78 is shown positioned with the posts 84, 85 and 86 in the respective bores 44, 45 and 46 in FIG. 8. The purpose of the tool 70 is to allow a user to rotate the closure body 35 counter-clockwise and remove the body 35 from the bone screw head 13 after the closure 6 has been seated therein. In this way the channel 23 can be reopened and the rod 7 removed or repositioned relative to the bone screw head 13.
  • While the non-axially located bores 44, 45 and 46 of the present embodiment are located between the break-off head neck 54 and the periphery 48, it is foreseen that one or more non-axial bores of this type could partially or entirely intersect with the neck 54 so as to become fully open or exposed at the closure top surface 49 only when a break-off head associated with such a neck breaks from the closure body.
  • Illustrated in FIGS. 9 to 13 is second embodiment or first modified embodiment of an implant in accordance with the present invention that is generally identified by the reference numeral 101. The implant 101 includes a bone screw 105, a closure 106, a rod 107 and a set screw 108.
  • The bone screw 105 except for the closure is essentially the same as the bone screw 5 and, therefore, will not be described in detail. Reference is made to the description of bone screw 5 for additional detail. The bone screw 105 has a shank 112 and a head 113. Upright arms 121 and 122 of the head 113 have inner or interior facing and threaded surfaces 126 and 127.
  • The rod 107 is elongate and has a generally circular cross section for being received in the head 113 beneath the closure 106.
  • The closure 106 is similar in some respects to the closure 6, but is installed in a different manner. In particular, the closure 106 has a generally cylindrical shaped body 135 that has a threaded radially outward surface 140 that has a thread thereon that is sized, shaped and positioned to threadedly mate with threads of the arm threaded surfaces 126 and 127, as seen in FIG. 10. The thread can be a conventional V-thread, a buttress thread, a reverse angle thread or other threads related to reverse angle threads in that they exert forces to draw or pull the arms 121 and 122 toward one another rather than cause them to splay or open at the top.
  • The closure 106 is similar in some respects to the closure 6, but is installed in a different manner. In particular, the closure 106 has a generally cylindrical shaped body 135 that has a threaded radially outward surface 140 that has a thread thereon that is sized, shaped and positioned to threadedly mate with threads of the arm threaded surfaces 126 and 127, as seen in FIG. 10. The thread can be a conventional V-thread, a buttress thread, a reverse angle thread or other threads related to reverse angle threads in that they exert forces to draw or pull the arms 121 and 122 toward one another rather than cause them to splay or open at the top.
  • The body 135 also has a top surface 149 and a bottom surface 150. Positioned to extend downwardly into the body 135 form the top surface 149 are four equally spaced bores 151, 152, 153 and 154 that do not extend entirely through the body 135 from top to bottom. The bores 151, 152, 153 and 154 are spaced form and positioned between both a central axis B and a periphery 158 of the body top surface 149. Each bore 151, 152, 153 and 154 is positioned at approximately 90° relative to adjacent bores 151, 152, 153 and 154.
  • Located axially and centrally in the body 135 is a threaded bore 161. The threaded bore 161 extends between the top surface 149 and bottom surface 150.
  • The set screw 108 has a threaded shaft 170 sized and shaped to be threadably received in the body threaded bore 161. The set screw 170 has sufficient length to extend through and outward from the bottom surface 150. In the second embodiment the set screw 108 has a head 171 that is gripable by a tool for rotation and torquing.
  • A tool 180 is provided for installing and removing the closure 106 form the bone screw head 113. The tool 180 is T-shaped having a shank 181 with a handle 182 attached to one end and a generally flat surface 184 at an opposite end. The surface 184 has four pegs or posts 186 extending therefrom. The posts 186 extend form the surface 184 parallel to an axis of rotation of the tool 180 which is the same in use as the axis of rotation B of the closure. The posts 186 are aligned, sized and shaped to mate with the closure body bores 151, 152, 153 and 154.
  • The tool shank 170 also includes an axial bore extending therethrough and receiving a keeper rod 190. The rod 190 has a threaded tip 191 that is adapted to be received in the closure body bore 161 and a grasping head 192 at an opposite end.
  • In use the rod 107 is placed in the head 112 and the tool 180 is mated with the closure 106 in the manner shown in FIG. 10, so that the four posts 186 are located in respective bores 151, 152, 152 and 154 and the rod tip 191 is threaded into the threaded bore 161. The closure 106 is then mated with the head 112 and threaded thereon by mating of the surface 140 with the arm surfaces 126 and 127 until the closure 106 is snug in the bone screw head 113. Torque in a preselected amount is applied to the closure 106 to ensure it is tightly seated in the head 112. In some instances, the closure 106 may just be used to capture the rod 107 and the set screw 108 is used to lock the rod 107 in place. In particular, the tool 180 may be removed and the set screw 108 is then placed in the bore 161 and advanced against the rod 107. A preselected torque is applied to lock the rod 107 in a selected position in the head 112.
  • It is foreseen that the set screw 108 may be of other types than the one illustrated. That is the set screw could have a break-off head in which case the overall implant 101 would have a comparatively low profile associated with only the top of the bone screw.
  • For removal, the installation process is reversed. That is the tool 180 is utilized to rotate the closure 106 counterclockwise rather than the clockwise direction used for inserting. Where a break off set screw is used, the set screw can be rotated with the body 135 of the closure 106 for removal.
  • Illustrated in FIGS. 14, 15 and 16 is a third embodiment or second modified embodiment of a bone screw closure in accordance with the present invention and generally identified by the reference numeral 206.
  • The closure 206 is in many ways similar to the closure 6 and reference is made to the disclosure for the closure 6 for additional detail.
  • In particular the closure 206 has a generally cylindrically shaped body 235 that has a radially outer threaded surface 240. The closure 235 also has a break-off head 236 secured to a top or upper surface 249 of the body 235 by a neck 254 at a break-off location 256. Positioned between the neck 254 and a periphery 248 of the body upper surface 249 are three bores 244, 245 and 246 that extend parallel to a central axis of rotation identified by a reference numeral C.
  • The major difference between the present embodiment and the closure 6 shown in the first embodiment is that a body 235 thereof also includes a central or axial bore 260 extending from a bottom surface 250 upward through the body 235 to the level of an upper surface 249 of the body 235. The bore 260 is threaded and covered by the neck 254 until the break-off head 236 breaks form the body 235 during installation by application of torque, as was described in the first embodiment. The bore 260 is thereafter exposed upwardly or at the upper surface 249 and adapted to receive a set screw 263 of the type used in the second embodiment or alternatively a break-off type, as shown, set screw having removal slots 264. It is noted that the diameter of the neck 254 at the top surface 249 is larger than the diameter of the bore 260.
  • It is to be understood that while certain forms of the present invention have been illustrated and described herein, it is not to be limited to the specific forms or arrangement of parts described and shown.

Claims (10)

1. A medical implant comprising:
a bone anchor head including a first upright arm and a second upright arm, the first upright arm having a first top surface and a first interior surface and the second upright arm having a second top surface and a second interior surface;
a channel formed between the first upright arm and the second upright arm, the channel configured to receive a rod;
a discontinuous helically wound thread extending along at least a portion of the first interior surface and the second interior surface;
a multi-part closure having a closed ring body and a set screw, the closed ring body having a top body surface opposite a bottom body surface and an outer body surface, the set screw having a set screw outer surface;
a plurality of spaced-apart tool mating structures formed within the top body surface and extending partially down into the closed ring body such that none of the plurality of spaced-apart tool mating structures intersect the bottom body surface;
a threaded central bore extending between the top body surface and the bottom body surface;
a continuous thread extending about the set screw outer surface;
a closure helically wound thread extending about the outer body surface, the closure helically wound thread threadedly mating with the discontinuous helically wound thread such that the first arm and the second arm are not caused to splay or open at a top of the bone anchor head and the first top surface and the second top surface are not covered by the closed ring body during rotational advancement of the closed ring body within the channel; and
a continuous bottom surface closing a lower portion of the set screw and configured to compress the rod into a locked position within the channel as the continuous thread of the set screw engages the threaded central bore, the locked position including an entirety of the set screw and the closed ring body positioned within the channel.
2. The medical implant of claim 1, wherein the plurality of spaced-apart tool mating structures are spaced from a central axis of the closed ring body and the outer body surface.
3. The medical implant of claim 1, wherein the plurality of spaced-apart tool mating structures are non-axially located with respect to each other.
4. The medical implant of claim 1, wherein the plurality of spaced-apart tool mating structures are shaped as bores.
5. The medical implant of claim 1, wherein the plurality of spaced-apart tool mating structures each include a square shaped opening.
6. The medical implant of claim 1, wherein the continuous bottom surface is flat.
7. The medical implant of claim 1, wherein no portion of the set screw or the closed ring body extends beyond the first top surface and the second top surface in the locked position.
8. The medical implant of claim 1, wherein the first upright arm and the second upright arm each include an exterior surface that is not covered by the closed ring body during the rotational advancement of the closed ring body within the channel.
9. The medical implant of claim 1, wherein the first top surface and the second top surface are not covered in the locked position.
10. The medical implant of claim 1, wherein the closed ring body is advanced into the channel prior to the set screw being advanced.
US15/883,993 2000-12-08 2018-01-30 Closure for open-headed medical implant Active US10004541B1 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
US09/732,528 US6454772B1 (en) 2000-12-08 2000-12-08 Set screw for medical implant with gripping side slots
US10/014,434 US6726687B2 (en) 2000-12-08 2001-11-09 Closure plug for open-headed medical implant
US10/142,614 US8377100B2 (en) 2000-12-08 2002-05-09 Closure for open-headed medical implant
US13/694,970 US20130144347A1 (en) 2000-12-08 2013-01-23 Closure for open headed implant
US14/509,496 US20150025580A1 (en) 2000-12-08 2014-10-08 Closure for open-headed medical implant
US15/144,915 US9907577B2 (en) 2000-12-08 2016-05-03 Closure for open-headed medical implant
US15/883,993 US10004541B1 (en) 2000-12-08 2018-01-30 Closure for open-headed medical implant

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US15/883,993 US10004541B1 (en) 2000-12-08 2018-01-30 Closure for open-headed medical implant
US16/016,212 US20180296249A1 (en) 2000-12-08 2018-06-22 Closure for open-headed medical implant

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
US15/144,915 Continuation US9907577B2 (en) 2000-12-08 2016-05-03 Closure for open-headed medical implant

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US16/016,212 Continuation US20180296249A1 (en) 2000-12-08 2018-06-22 Closure for open-headed medical implant

Publications (2)

Publication Number Publication Date
US20180161070A1 true US20180161070A1 (en) 2018-06-14
US10004541B1 US10004541B1 (en) 2018-06-26

Family

ID=46204473

Family Applications (6)

Application Number Title Priority Date Filing Date
US10/142,614 Active 2027-07-20 US8377100B2 (en) 2000-12-08 2002-05-09 Closure for open-headed medical implant
US13/694,970 Abandoned US20130144347A1 (en) 2000-12-08 2013-01-23 Closure for open headed implant
US14/509,496 Abandoned US20150025580A1 (en) 2000-12-08 2014-10-08 Closure for open-headed medical implant
US15/144,915 Active US9907577B2 (en) 2000-12-08 2016-05-03 Closure for open-headed medical implant
US15/883,993 Active US10004541B1 (en) 2000-12-08 2018-01-30 Closure for open-headed medical implant
US16/016,212 Pending US20180296249A1 (en) 2000-12-08 2018-06-22 Closure for open-headed medical implant

Family Applications Before (4)

Application Number Title Priority Date Filing Date
US10/142,614 Active 2027-07-20 US8377100B2 (en) 2000-12-08 2002-05-09 Closure for open-headed medical implant
US13/694,970 Abandoned US20130144347A1 (en) 2000-12-08 2013-01-23 Closure for open headed implant
US14/509,496 Abandoned US20150025580A1 (en) 2000-12-08 2014-10-08 Closure for open-headed medical implant
US15/144,915 Active US9907577B2 (en) 2000-12-08 2016-05-03 Closure for open-headed medical implant

Family Applications After (1)

Application Number Title Priority Date Filing Date
US16/016,212 Pending US20180296249A1 (en) 2000-12-08 2018-06-22 Closure for open-headed medical implant

Country Status (1)

Country Link
US (6) US8377100B2 (en)

Families Citing this family (95)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2293057C (en) 1998-12-30 2008-04-01 Depuy Orthopaedics, Inc. Suture locking device
US7887551B2 (en) 1999-12-02 2011-02-15 Smith & Nephew, Inc. Soft tissue attachment and repair
US7153312B1 (en) 1999-12-02 2006-12-26 Smith & Nephew Inc. Closure device and method for tissue repair
US8377100B2 (en) * 2000-12-08 2013-02-19 Roger P. Jackson Closure for open-headed medical implant
US7306603B2 (en) 2002-08-21 2007-12-11 Innovative Spinal Technologies Device and method for percutaneous placement of lumbar pedicle screws and connecting rods
US8926672B2 (en) 2004-11-10 2015-01-06 Roger P. Jackson Splay control closure for open bone anchor
US8876868B2 (en) 2002-09-06 2014-11-04 Roger P. Jackson Helical guide and advancement flange with radially loaded lip
US9314235B2 (en) * 2003-02-05 2016-04-19 Smith & Nephew, Inc. Tissue anchor and insertion tool
US8926670B2 (en) 2003-06-18 2015-01-06 Roger P. Jackson Polyaxial bone screw assembly
US6716214B1 (en) 2003-06-18 2004-04-06 Roger P. Jackson Polyaxial bone screw with spline capture connection
US8398682B2 (en) 2003-06-18 2013-03-19 Roger P. Jackson Polyaxial bone screw assembly
US8377102B2 (en) 2003-06-18 2013-02-19 Roger P. Jackson Polyaxial bone anchor with spline capture connection and lower pressure insert
US8257398B2 (en) 2003-06-18 2012-09-04 Jackson Roger P Polyaxial bone screw with cam capture
US8814911B2 (en) 2003-06-18 2014-08-26 Roger P. Jackson Polyaxial bone screw with cam connection and lock and release insert
US7967850B2 (en) 2003-06-18 2011-06-28 Jackson Roger P Polyaxial bone anchor with helical capture connection, insert and dual locking assembly
US20040260284A1 (en) * 2003-06-23 2004-12-23 Matthew Parker Anti-splay pedicle screw
US8137386B2 (en) * 2003-08-28 2012-03-20 Jackson Roger P Polyaxial bone screw apparatus
US7527638B2 (en) 2003-12-16 2009-05-05 Depuy Spine, Inc. Methods and devices for minimally invasive spinal fixation element placement
CA2701522C (en) 2004-02-27 2012-05-15 Roger P. Jackson Orthopedic implant rod reduction tool set and method
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
US7766915B2 (en) 2004-02-27 2010-08-03 Jackson Roger P Dynamic fixation assemblies with inner core and outer coil-like member
US7160300B2 (en) 2004-02-27 2007-01-09 Jackson Roger P Orthopedic implant rod reduction tool set and method
US8105368B2 (en) 2005-09-30 2012-01-31 Jackson Roger P Dynamic stabilization connecting member with slitted core and outer sleeve
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
US7651502B2 (en) 2004-09-24 2010-01-26 Jackson Roger P Spinal fixation tool set and method for rod reduction and fastener insertion
US7833250B2 (en) 2004-11-10 2010-11-16 Jackson Roger P Polyaxial bone screw with helically wound capture connection
WO2006052796A2 (en) 2004-11-10 2006-05-18 Jackson Roger P Helical guide and advancement flange with break-off extensions
US7875065B2 (en) 2004-11-23 2011-01-25 Jackson Roger P Polyaxial bone screw with multi-part shank retainer and pressure insert
US7621918B2 (en) 2004-11-23 2009-11-24 Jackson Roger P Spinal fixation tool set and method
US8152810B2 (en) 2004-11-23 2012-04-10 Jackson Roger P Spinal fixation tool set and method
US10076361B2 (en) 2005-02-22 2018-09-18 Roger P. Jackson Polyaxial bone screw with spherical capture, compression and alignment and retention structures
US7794481B2 (en) * 2005-04-22 2010-09-14 Warsaw Orthopedic, Inc. Force limiting coupling assemblies for spinal implants
FR2885517B1 (en) * 2005-05-13 2007-08-10 Newdeal S A S Soc Par Actions Surgical treatment device of the plate and surgical kit corresponding foot
US7776067B2 (en) 2005-05-27 2010-08-17 Jackson Roger P Polyaxial bone screw with shank articulation pressure insert and method
US20060293709A1 (en) 2005-06-24 2006-12-28 Bojarski Raymond A Tissue repair device
US8273088B2 (en) * 2005-07-08 2012-09-25 Depuy Spine, Inc. Bone removal tool
US7625394B2 (en) * 2005-08-05 2009-12-01 Warsaw Orthopedic, Inc. Coupling assemblies for spinal implants
US9980753B2 (en) 2009-06-15 2018-05-29 Roger P Jackson pivotal anchor with snap-in-place insert having rotation blocking extensions
US9216041B2 (en) 2009-06-15 2015-12-22 Roger P. Jackson Spinal connecting members with tensioned cords and rigid sleeves for engaging compression inserts
US9168069B2 (en) 2009-06-15 2015-10-27 Roger P. Jackson Polyaxial bone anchor with pop-on shank and winged insert with lower skirt for engaging a friction fit retainer
US9668771B2 (en) 2009-06-15 2017-06-06 Roger P Jackson Soft stabilization assemblies with off-set connector
US8444681B2 (en) 2009-06-15 2013-05-21 Roger P. Jackson Polyaxial bone anchor with pop-on shank, friction fit retainer and winged insert
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
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
US8556938B2 (en) 2009-06-15 2013-10-15 Roger P. Jackson Polyaxial bone anchor with non-pivotable retainer and pop-on shank, some with friction fit
US20070255284A1 (en) * 2006-04-28 2007-11-01 Sdgi Holdings, Inc. Orthopedic implant apparatus
US20070270832A1 (en) * 2006-05-01 2007-11-22 Sdgi Holdings, Inc. Locking device and method, for use in a bone stabilization system, employing a set screw member and deformable saddle member
US20070270831A1 (en) * 2006-05-01 2007-11-22 Sdgi Holdings, Inc. Bone anchor system utilizing a molded coupling member for coupling a bone anchor to a stabilization member and method therefor
US20070288003A1 (en) * 2006-05-30 2007-12-13 Dewey Jonathan M Locking device and method, for use in a bone stabilization system, employing a break-away interface member rigidly coupled to a seating member
US7914559B2 (en) * 2006-05-30 2011-03-29 Warsaw Orthopedic, Inc. Locking device and method employing a posted member to control positioning of a stabilization member of a bone stabilization system
AU2007332794C1 (en) 2006-12-08 2012-01-12 Roger P. Jackson Tool system for dynamic spinal implants
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
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
US7901437B2 (en) 2007-01-26 2011-03-08 Jackson Roger P Dynamic stabilization member with molded connection
US7922725B2 (en) * 2007-04-19 2011-04-12 Zimmer Spine, Inc. Method and associated instrumentation for installation of spinal dynamic stabilization system
US8016832B2 (en) * 2007-05-02 2011-09-13 Zimmer Spine, Inc. Installation systems for spinal stabilization system and related methods
US9232968B2 (en) 2007-12-19 2016-01-12 DePuy Synthes Products, Inc. Polymeric pedicle rods and methods of manufacturing
US8007522B2 (en) 2008-02-04 2011-08-30 Depuy Spine, Inc. Methods for correction of spinal deformities
US9277940B2 (en) * 2008-02-05 2016-03-08 Zimmer Spine, Inc. System and method for insertion of flexible spinal stabilization element
US8439922B1 (en) 2008-02-06 2013-05-14 NiVasive, Inc. Systems and methods for holding and implanting bone anchors
ES2392381T3 (en) * 2008-04-22 2012-12-10 Synthes Gmbh Bone fastener tabs with reduction
US8388659B1 (en) 2008-10-17 2013-03-05 Theken Spine, Llc Spondylolisthesis screw and instrument for implantation
US8641734B2 (en) 2009-02-13 2014-02-04 DePuy Synthes Products, LLC Dual spring posterior dynamic stabilization device with elongation limiting elastomers
CN103826560A (en) 2009-06-15 2014-05-28 罗杰.P.杰克逊 Polyaxial bone anchor with pop-on shank and winged insert with friction fit compressive collet
US9320543B2 (en) 2009-06-25 2016-04-26 DePuy Synthes Products, Inc. Posterior dynamic stabilization device having a mobile anchor
US9445844B2 (en) 2010-03-24 2016-09-20 DePuy Synthes Products, Inc. Composite material posterior dynamic stabilization spring rod
US9113960B2 (en) * 2010-06-08 2015-08-25 Globus Medical, Inc. Conforming bone stabilization receiver
WO2012033532A1 (en) 2010-09-08 2012-03-15 Roger Jackson P Dynamic stabilization members with elastic and inelastic sections
EP2637585A4 (en) 2010-11-10 2017-01-18 Jackson, Roger P. Polyaxial bone anchors with pop-on shank, friction fit fully restrained retainer, insert and tool receiving features
US9198698B1 (en) 2011-02-10 2015-12-01 Nuvasive, Inc. Minimally invasive spinal fixation system and related methods
JPWO2012124252A1 (en) 2011-03-14 2014-07-17 株式会社ニコン Electronic equipment, the electronic equipment control method, and program
JP5865479B2 (en) 2011-03-24 2016-02-17 ロジャー・ピー・ジャクソン Bone anchor of the polyaxial having a combined joint and pop-mounted Shank
US20140303674A1 (en) * 2011-11-18 2014-10-09 Orthopaedic International, Inc. Parallel rod connector
US8956361B2 (en) 2011-12-19 2015-02-17 Amendia, Inc. Extended tab bone screw system
US8911479B2 (en) 2012-01-10 2014-12-16 Roger P. Jackson Multi-start closures for open implants
US9782204B2 (en) 2012-09-28 2017-10-10 Medos International Sarl Bone anchor assemblies
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
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
US9724145B2 (en) 2013-03-14 2017-08-08 Medos International Sarl Bone anchor assemblies with multiple component bottom loading bone anchors
US9259247B2 (en) 2013-03-14 2016-02-16 Medos International Sarl Locking compression members for use with bone anchor assemblies and methods
US9486256B1 (en) 2013-03-15 2016-11-08 Nuvasive, Inc. Rod reduction assemblies and related methods
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
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
US9943342B2 (en) 2015-05-11 2018-04-17 Providence Medical Technology, Inc. Methods for implanting a bone screw
US9974577B1 (en) 2015-05-21 2018-05-22 Nuvasive, Inc. Methods and instruments for performing leveraged reduction during single position spine surgery
US20180110544A1 (en) * 2016-10-26 2018-04-26 Warsaw Orthopedic, Inc. Surgical instrument and method

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9795415B2 (en) * 2000-09-22 2017-10-24 DePuy Synthes Products, Inc. Locking cap assembly for spinal fixation instrumentation
US9907577B2 (en) * 2000-12-08 2018-03-06 Roger P. Jackson Closure for open-headed medical implant

Family Cites Families (407)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE373809C (en) 1923-04-16 Willy Seck fuel sucker
US791548A (en) 1903-05-23 1905-06-06 Hollow Screw Company Set-screw.
US1300275A (en) * 1914-09-03 1919-04-15 Johnson Service Co Screw-threaded fastening.
US1330673A (en) * 1919-07-16 1920-02-10 Anderson Ross Drift for staybolt-sleeves
GB203508A (en) 1922-08-24 1923-09-13 Thomas Turner Hindle Improvements in and relating to set screws for securing wheels, bosses, collars, and the like, upon shafts and the like
US2005348A (en) 1932-05-23 1935-06-18 Anthony G M Michell Nut, screw, and like article
US2083092A (en) 1936-01-20 1937-06-08 Joseph R Richer Screw
BE434038A (en) 1938-04-28
US2239352A (en) 1939-02-23 1941-04-22 Economy Screw Corp Setscrew and method of producing same
US2295314A (en) 1940-05-04 1942-09-08 Ernest C Whitney Setscrew
US2445978A (en) 1945-05-07 1948-07-27 Domnic V Stellin Socket head screw
US2537029A (en) * 1946-08-06 1951-01-09 Phillips Screw Co Method for manufacturing screw drivers
US2532815A (en) 1947-08-29 1950-12-05 Hagerstown Engineering Company Special lock screw
US2553337A (en) 1948-09-21 1951-05-15 Julius E Shafer Bearing assembly
US2778265A (en) 1953-06-15 1957-01-22 Set Screw & Mfg Company Solid cup-point set screw
US2833325A (en) 1954-02-09 1958-05-06 Nat Screw & Mfg Company Countersunk flexible head threaded fastener
US2877681A (en) 1954-04-16 1959-03-17 Set Screw & Mfg Company Screw having deformable temporary head disposed in a groove
US2927332A (en) 1957-11-12 1960-03-08 Moore Harrington Method of making a setscrew
US2969250A (en) * 1959-01-05 1961-01-24 Standard Pressed Steel Co Socket drive
US3143029A (en) 1960-03-28 1964-08-04 Set Screw & Mfg Company Set screw with center of gravity located to permit orientation
US3370341A (en) 1965-12-20 1968-02-27 G K N Serews & Fasteners Ltd Method of and apparatus for use in tightening a nut and bolt assembly
US3584667A (en) 1966-09-19 1971-06-15 Textron Inc Coupling arrangement and tools for same
US3498174A (en) 1968-11-19 1970-03-03 Hi Shear Corp Inherently torque-limited bolt having removal means
US3812757A (en) 1969-11-04 1974-05-28 Textron Inc Threaded fastener with torque control head
US3640416A (en) * 1970-10-16 1972-02-08 John J Temple Reverse angle thread system for containers
US3963322A (en) 1975-01-23 1976-06-15 Ite Imperial Corporation Torque controlling set screw for use with the cable of solderless connectors, or the like
US4103422A (en) 1975-03-07 1978-08-01 Oratronics, Inc. Threaded self-tapping endodontic stabilizer
US4373754A (en) * 1978-08-09 1983-02-15 Hydril Company Threaded connector
US4227429A (en) * 1978-08-14 1980-10-14 Bowers Jr William Spanner socket wrench
US4269246A (en) 1979-05-10 1981-05-26 Textron Inc. Fastener and driver assembly
FR2467312B1 (en) 1979-10-08 1984-08-10 Boulay Ste Indle
GB2082709A (en) 1980-08-23 1982-03-10 Robinson Derek Hugh Disc nut and disc-headed bolt
US4577448A (en) * 1981-06-17 1986-03-25 The British Picker Company, Ltd. Floors
US4506917A (en) 1982-07-22 1985-03-26 Interfit, Inc. Pipe connection fitting
US4492500A (en) 1983-02-10 1985-01-08 Ewing Peter D Torque limiting set screw
FR2545350B1 (en) 1983-05-04 1985-08-23 Cotrel Yves Apparatus for shoring spine
GB2140523A (en) * 1983-05-17 1984-11-28 Hepworth Electrical Developmen Shear head screws or bolts, or shear head adapter
US4600225A (en) 1983-12-23 1986-07-15 Interlock Technologies Corporation Tubular connection having a parallel chevron thread
US4600224A (en) 1983-12-23 1986-07-15 Interlock Technologies Corporation Tubular connection having a chevron wedge thread
GB2173104B (en) 1984-02-28 1987-11-25 Peter John Webb Spinal fixation apparatus
US4703954A (en) 1985-11-08 1987-11-03 Hydril Company Threaded pipe connection having wedge threads
DE3614101C1 (en) 1986-04-25 1987-10-22 Juergen Prof Dr Med Harms pedicle screw
US4707001A (en) 1986-06-20 1987-11-17 Seal-Tech, Inc. Liner connection
US5427418A (en) 1986-07-18 1995-06-27 Watts; John D. High strength, low torque threaded tubular connection
DE3630863A1 (en) 1986-09-08 1988-03-17 Mecron Med Prod Gmbh Bone screw
US4805602A (en) * 1986-11-03 1989-02-21 Danninger Medical Technology Transpedicular screw and rod system
DE3701765C1 (en) 1987-01-22 1988-06-09 Ethicon Gmbh bone screw
US4764068A (en) 1987-03-06 1988-08-16 Sps Technologies, Inc. Knurled cup-point set screw
US4790297A (en) 1987-07-24 1988-12-13 Biotechnology, Inc. Spinal fixation method and system
US4838264A (en) 1987-08-18 1989-06-13 Bremer Orthopedics, Inc. Torque limiting device for use with bone penetrating pins
US4850775A (en) 1988-04-26 1989-07-25 Lee Jae B Screw-type fastening device
FR2633177B1 (en) 1988-06-24 1991-03-08 Fabrication Materiel Orthopedi Implant for spinal osteosynthesis device, in particular trauma
US4961740B1 (en) 1988-10-17 1997-01-14 Surgical Dynamics Inc V-thread fusion cage and method of fusing a bone joint
NO900391L (en) 1989-02-06 1990-08-07 Weidmann H Ag Method anchoring element and clamping device for clamping a rod.
FR2642643B1 (en) 1989-02-09 1991-05-10 Vignaud Jean Louis spinal instrumentation for universal pedicle fixation screw pitch micrometric adjustment
FR2645732B1 (en) 1989-04-13 1997-01-03 Cotrel Yves Vertebral implant for osteosynthesis device
DE3923996C2 (en) 1989-07-20 1993-08-26 Lutz 7730 Villingen-Schwenningen De Biedermann
FR2658413B1 (en) 1990-02-19 1997-01-03 Sofamor Osteosynthesis device for the correction of spinal deviations.
FR2658414B1 (en) 1990-02-19 1992-07-31 Sofamor Implant for osteosynthesis device in particular of the spine.
FR2659225B1 (en) 1990-03-08 1995-09-08 Sofamor Transverse fixing device to ensure a rigid transverse connection between two rods of a spinal osteosynthesis system.
GB9007519D0 (en) 1990-04-03 1990-05-30 Trisport Ltd Studded footwear
WO1991016020A1 (en) 1990-04-26 1991-10-31 Danninger Medical Technology, Inc. Transpedicular screw system and method of use
US5092635A (en) * 1990-04-27 1992-03-03 Baker Hughes Incorporated Buttress thread form
GB9014817D0 (en) 1990-07-04 1990-08-22 Mehdian Seyed M H Improvements in or relating to apparatus for use in the treatment of spinal disorders
US5129900B1 (en) 1990-07-24 1998-12-29 Acromed Corp Spinal column retaining method and apparatus
US5073074A (en) 1990-07-26 1991-12-17 Sps Technologies, Inc. Set screw
CH681853A5 (en) 1990-08-21 1993-06-15 Synthes Ag
US5176483A (en) * 1991-01-21 1993-01-05 Inq. Walter Hengst Gmbh & Co. Detachment lock for a bolt connection
FR2676354B1 (en) 1991-05-17 1997-11-07 Vignaud Jean Louis Lockable connecting device of osteosynthesis spinal anchoring elements.
PT100685A (en) * 1991-07-15 1994-05-31 Danek Group Inc spinal fixation system
FR2680461B1 (en) 1991-08-19 1993-11-26 Fabrication Mat Orthopedique Including osteosynthesis implant device for the spine and corresponding device for its implementation.
US5275601A (en) * 1991-09-03 1994-01-04 Synthes (U.S.A) Self-locking resorbable screws and plates for internal fixation of bone fractures and tendon-to-bone attachment
US5257993A (en) 1991-10-04 1993-11-02 Acromed Corporation Top-entry rod retainer
US5234430A (en) 1991-12-18 1993-08-10 Huebner Randall J Orthopedic fixation screw and method
WO1993015682A1 (en) 1992-02-14 1993-08-19 American Cyanamid Company Polymeric screws and coatings for surgical uses
DE9202745U1 (en) 1992-03-02 1992-04-30 Howmedica Gmbh, 2314 Schoenkirchen, De
US5358289A (en) 1992-03-13 1994-10-25 Nkk Corporation Buttress-threaded tubular connection
AT164304T (en) * 1992-04-28 1998-04-15 Donald R Huene Absorbable bone screw and tool to use the same
US6077262A (en) 1993-06-04 2000-06-20 Synthes (U.S.A.) Posterior spinal implant
US5281222A (en) 1992-06-30 1994-01-25 Zimmer, Inc. Spinal implant system
US5382248A (en) 1992-09-10 1995-01-17 H. D. Medical, Inc. System and method for stabilizing bone segments
US5334203A (en) * 1992-09-30 1994-08-02 Amei Technologies Inc. Spinal fixation system and methods
US5545165A (en) * 1992-10-09 1996-08-13 Biedermann Motech Gmbh Anchoring member
FR2697992B1 (en) 1992-11-18 1994-12-30 Eurosurgical A fastening device on a rod member, particularly for a spinal orthopedics instrument.
US5354299A (en) 1992-12-07 1994-10-11 Linvatec Corporation Method of revising a screw in a tunnel
US5387212A (en) * 1993-01-26 1995-02-07 Yuan; Hansen A. Vertebral locking and retrieving system with central locking rod
US5282707A (en) 1993-02-22 1994-02-01 Detroit Tool Industries Corporation Fastening system for locking nut with torque indicating marks
DE9302700U1 (en) 1993-02-25 1993-04-08 Howmedica Gmbh, 2314 Schoenkirchen, De
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
FR2704133B1 (en) * 1993-04-19 1995-07-13 Stryker Corp Implant for osteosynthesis device in particular of the spine.
FR2705226B1 (en) 1993-05-17 1995-07-07 Tornier Sa Spinal fixator for holding a spine.
EP0671151B1 (en) 1994-03-10 2000-02-09 Schäfer micomed GmbH Osteosynthetic device
DE4316542C1 (en) * 1993-05-18 1994-07-21 Schaefer Micomed Gmbh osteosynthesis
WO1994026194A1 (en) * 1993-05-18 1994-11-24 Schäfer Micomed GmbH Holding device for use in bone surgery
US5379505A (en) 1993-06-16 1995-01-10 Lock-N-Stitch International Method for repairing cracks
US6019759A (en) * 1996-07-29 2000-02-01 Rogozinski; Chaim Multi-Directional fasteners or attachment devices for spinal implant elements
AT262839T (en) 1993-11-19 2004-04-15 Cross Med Prod Inc Mounting bar seat with sliding lock
US5466237A (en) 1993-11-19 1995-11-14 Cross Medical Products, Inc. Variable locking stabilizer anchor seat and screw
DE4339804A1 (en) 1993-11-23 1995-06-01 Haerle Anton A load transfer member for osteosynthesis
DE9402839U1 (en) 1994-02-22 1994-04-14 Howmedica Gmbh Means for setting a spinal column with damaged vertebrae
US5507747A (en) 1994-03-09 1996-04-16 Yuan; Hansen A. Vertebral fixation device
DE4425391C2 (en) 1994-04-28 1996-12-19 Schaefer Micomed Gmbh The bone surgery holding device
US5662652A (en) 1994-04-28 1997-09-02 Schafer Micomed Gmbh Bone surgery holding apparatus
US5641256A (en) 1994-06-09 1997-06-24 Npc, Inc. Anchoring device for a threaded member
US5961517A (en) 1994-07-18 1999-10-05 Biedermann; Lutz Anchoring member and adjustment tool therefor
DE4425357C2 (en) * 1994-07-18 1996-07-04 Harms Juergen anchoring element
DE9413471U1 (en) 1994-08-20 1995-12-21 Schaefer Micomed Gmbh Ventral intervertebral implant
US6193719B1 (en) * 1995-08-24 2001-02-27 Sofamor S.N.C. Threaded clamping plug for interconnecting two implants of a spinal osteosynthesis instrumentation or other implants
US5601553A (en) * 1994-10-03 1997-02-11 Synthes (U.S.A.) Locking plate and bone screw
US5474551A (en) 1994-11-18 1995-12-12 Smith & Nephew Richards, Inc. Universal coupler for spinal fixation
FR2729291B1 (en) 1995-01-12 1997-09-19 Euros Sa spinal implant
US5620443A (en) 1995-01-25 1997-04-15 Danek Medical, Inc. Anterior screw-rod connector
US5643260A (en) 1995-02-14 1997-07-01 Smith & Nephew, Inc. Orthopedic fixation system
DE19507141B4 (en) 1995-03-01 2004-12-23 Lutz Biedermann Locking
US5605458A (en) 1995-03-06 1997-02-25 Crystal Medical Technology, A Division Of Folsom Metal Products, Inc. Negative load flank implant connector
US5591235A (en) * 1995-03-15 1997-01-07 Kuslich; Stephen D. Spinal fixation device
DE19509332C1 (en) 1995-03-15 1996-08-14 Harms Juergen anchoring element
DE19509331C2 (en) 1995-03-15 1998-01-15 Juergen Harms Element for stabilizing cervical vertebrae
US5591166A (en) * 1995-03-27 1997-01-07 Smith & Nephew Richards, Inc. Multi angle bone bolt
US6206922B1 (en) * 1995-03-27 2001-03-27 Sdgi Holdings, Inc. Methods and instruments for interbody fusion
US5569247A (en) 1995-03-27 1996-10-29 Smith & Nephew Richards, Inc. Enhanced variable angle bone bolt
US5882350A (en) 1995-04-13 1999-03-16 Fastenetix, Llc Polyaxial pedicle screw having a threaded and tapered compression locking mechanism
US6558387B2 (en) 2001-01-30 2003-05-06 Fastemetix, Llc Porous interbody fusion device having integrated polyaxial locking interference screws
US6780186B2 (en) 1995-04-13 2004-08-24 Third Millennium Engineering Llc Anterior cervical plate having polyaxial locking screws and sliding coupling elements
US5669911A (en) 1995-04-13 1997-09-23 Fastenetix, L.L.C. Polyaxial pedicle screw
US5520690A (en) 1995-04-13 1996-05-28 Errico; Joseph P. Anterior spinal polyaxial locking screw plate assembly
US5607304A (en) * 1995-04-17 1997-03-04 Crystal Medical Technology, A Division Of Folsom Metal Products, Inc. Implant connector
US5562663A (en) 1995-06-07 1996-10-08 Danek Medical, Inc. Implant interconnection mechanism
US5683391A (en) 1995-06-07 1997-11-04 Danek Medical, Inc. Anterior spinal instrumentation and method for implantation and revision
US5584834A (en) 1995-07-13 1996-12-17 Fastenetix, L.L.C. Polyaxial locking screw and coupling element assembly for use with side loading rod fixation apparatus
US5586984A (en) 1995-07-13 1996-12-24 Fastenetix, L.L.C. Polyaxial locking screw and coupling element assembly for use with rod fixation apparatus
US5554157A (en) 1995-07-13 1996-09-10 Fastenetix, L.L.C. Rod securing polyaxial locking screw and coupling element assembly
US5697929A (en) 1995-10-18 1997-12-16 Cross Medical Products, Inc. Self-limiting set screw for use with spinal implant systems
US5709683A (en) 1995-12-19 1998-01-20 Spine-Tech, Inc. Interbody bone implant having conjoining stabilization features for bony fusion
BR9707479A (en) 1996-01-30 1999-04-06 Crown Cork Ag Section upper end of the container and closure cap with two steps screwthread
US5713705A (en) * 1996-03-01 1998-02-03 Gruenbichler; Carl Fastener bolt with limited torque head
US6679833B2 (en) * 1996-03-22 2004-01-20 Sdgi Holdings, Inc. Devices and methods for percutaneous surgery
WO1997038639A1 (en) 1996-04-18 1997-10-23 Tresona Instrument Ab Device and method for correcting and stabilising a deviating curvature of a spinal column
FR2748387B1 (en) * 1996-05-13 1998-10-30 Stryker France Sa A bone fastener, in particular the sacrum, in spinal osteosynthesis
US6149533A (en) 1996-09-13 2000-11-21 Finn; Charles A. Golf club
US6053078A (en) * 1996-09-18 2000-04-25 Pst Products, Inc. Wrench for soft golf spikes
US5797911A (en) * 1996-09-24 1998-08-25 Sdgi Holdings, Inc. Multi-axial bone screw assembly
US5879350A (en) * 1996-09-24 1999-03-09 Sdgi Holdings, Inc. Multi-axial bone screw assembly
US5885286A (en) * 1996-09-24 1999-03-23 Sdgi Holdings, Inc. Multi-axial bone screw assembly
US6261039B1 (en) 1996-10-02 2001-07-17 Gary Jack Reed Thread repair insert
US5800435A (en) 1996-10-09 1998-09-01 Techsys, Llc Modular spinal plate for use with modular polyaxial locking pedicle screws
EP0949887B1 (en) 1996-10-09 2006-11-29 K2 Medical, L.L.C. A modular polyaxial locking pedicle screw
US5964760A (en) 1996-10-18 1999-10-12 Spinal Innovations Spinal implant fixation assembly
US5863293A (en) * 1996-10-18 1999-01-26 Spinal Innovations Spinal implant fixation assembly
US6416515B1 (en) 1996-10-24 2002-07-09 Spinal Concepts, Inc. Spinal fixation system
AU723776B2 (en) 1996-10-24 2000-09-07 Zimmer Spine, Inc. Method and apparatus for spinal fixation
US5728098A (en) * 1996-11-07 1998-03-17 Sdgi Holdings, Inc. Multi-angle bone screw assembly using shape-memory technology
AU732351B2 (en) 1996-12-12 2001-04-26 Synthes Gmbh Device for the connection of a longitudinal support with a pedicle screw
US6485494B1 (en) 1996-12-20 2002-11-26 Thomas T. Haider Pedicle screw system for osteosynthesis
US6004349A (en) 1997-01-06 1999-12-21 Jackson; Roger P. Set screw for use with osteosynthesis apparatus
US6224596B1 (en) 1997-01-06 2001-05-01 Roger P. Jackson Set screw for use with osteosynthesis apparatus
US6001098A (en) 1997-01-17 1999-12-14 Howmedica Gmbh Connecting element for spinal stabilizing system
DE29701099U1 (en) 1997-01-23 1997-03-06 Aesculap Ag Pin-shaped retaining element for an orthopedic retaining system
US6139550A (en) 1997-02-11 2000-10-31 Michelson; Gary K. Skeletal plating system
AT395001T (en) * 1997-02-11 2008-05-15 Warsaw Orthopedic Inc screw plate for the front cervical spine fixation system for a
US5733286A (en) * 1997-02-12 1998-03-31 Third Millennium Engineering, Llc Rod securing polyaxial locking screw and coupling element assembly
US5725528A (en) * 1997-02-12 1998-03-10 Third Millennium Engineering, Llc Modular polyaxial locking pedicle screw
FR2762986B1 (en) 1997-05-07 1999-09-24 Aesculap Jbs System for spinal osteosynthesis for arthrodesis
US6413257B1 (en) * 1997-05-15 2002-07-02 Surgical Dynamics, Inc. Clamping connector for spinal fixation systems
US6248105B1 (en) 1997-05-17 2001-06-19 Synthes (U.S.A.) Device for connecting a longitudinal support with a pedicle screw
FR2763831B1 (en) 1997-05-29 1999-08-06 Materiel Orthopedique En Abreg spinal rod of constant section for spinal osteosynthesis instrumentation
DE29710484U1 (en) 1997-06-16 1998-10-15 Howmedica Gmbh Receiving part of a support member of a spinal implant
US6287308B1 (en) 1997-07-14 2001-09-11 Sdgi Holdings, Inc. Methods and apparatus for fusionless treatment of spinal deformities
US5891145A (en) * 1997-07-14 1999-04-06 Sdgi Holdings, Inc. Multi-axial screw
US5944465A (en) 1997-08-04 1999-08-31 Janitzki; Bernhard M. Low tolerance threaded fastener
AU753521B2 (en) 1997-10-24 2002-10-17 Robert S. Bray Jr. Bone plate and bone screw guide mechanism
DE29720022U1 (en) 1997-11-12 1998-01-15 Schaefer Micomed Gmbh Intervertebral implant
EP0933065A1 (en) 1998-02-02 1999-08-04 Sulzer Orthopädie AG Pivotable attachment system for a bone screw
FR2776915B1 (en) * 1998-04-03 2000-06-30 Eurosurgical Osteosynthesis device adaptable to the spinal alignment differences, angulation and driving pedicle screws
US6010503A (en) * 1998-04-03 2000-01-04 Spinal Innovations, Llc Locking mechanism
DE19818765A1 (en) 1998-04-07 1999-10-14 Schaefer Micomed Gmbh Synthetic bone device for fixing bone fractures
DE29806563U1 (en) * 1998-04-09 1998-06-18 Howmedica Gmbh Pedicle screw and an assembly aid for
US6258089B1 (en) 1998-05-19 2001-07-10 Alphatec Manufacturing, Inc. Anterior cervical plate and fixation system
AT256432T (en) 1998-05-19 2004-01-15 Synthes Ag Osteosynthetic implant with sunken joint connection
US6113601A (en) 1998-06-12 2000-09-05 Bones Consulting, Llc Polyaxial pedicle screw having a loosely coupled locking cap
DE29810798U1 (en) 1998-06-17 1999-10-28 Schaefer Micomed Gmbh osteosynthesis
US6565565B1 (en) 1998-06-17 2003-05-20 Howmedica Osteonics Corp. Device for securing spinal rods
US6090111A (en) 1998-06-17 2000-07-18 Surgical Dynamics, Inc. Device for securing spinal rods
US6056753A (en) 1998-07-13 2000-05-02 Jackson; Roger P. Set screw for use with osteosynthesis apparatus
US6110172A (en) 1998-07-31 2000-08-29 Jackson; Roger P. Closure system for open ended osteosynthesis apparatus
DE19835816C2 (en) 1998-08-08 2002-02-07 Schaefer Micomed Gmbh osteosynthesis
CA2341305A1 (en) * 1998-08-21 2000-03-02 Synthes (U.S.A.) Bone-anchoring element with snap-in spherical head
AR020201A1 (en) 1998-09-07 2002-05-02 Sumitomo Metal Industries, Ltd. Threaded connection of two metal tubes and use of two threaded connections.
DE69930391T2 (en) * 1998-09-11 2006-12-07 Synthes Ag Chur, Chur The angle-adjustable fixation system for the spine
DE19841801C1 (en) * 1998-09-12 2000-05-04 Hewing Gmbh Fitting for a pipe
ES2221195T3 (en) 1998-09-29 2004-12-16 Synthes Ag Chur Device for connecting a longitudinal support with means for fixing bones.
US6059786A (en) 1998-10-22 2000-05-09 Jackson; Roger P. Set screw for medical implants
US6296642B1 (en) * 1998-11-09 2001-10-02 Sdgi Holdings, Inc. Reverse angle thread for preventing splaying in medical devices
FR2785787B1 (en) 1998-11-12 2001-04-13 Materiel Orthopedique En Abreg Device for osteosynthesis of a spinal segment through an anterior approach
AU742502B2 (en) 1998-11-26 2002-01-03 Synthes Gmbh Screw
FR2787014B1 (en) 1998-12-11 2001-03-02 Dimso Sa Prothese of intervertebral disc friction reduced
FR2787016B1 (en) * 1998-12-11 2001-03-02 Dimso Sa Prothese of intervertebral disc
US6302888B1 (en) 1999-03-19 2001-10-16 Interpore Cross International Locking dovetail and self-limiting set screw assembly for a spinal stabilization member
US6280445B1 (en) * 1999-04-16 2001-08-28 Sdgi Holdings, Inc. Multi-axial bone anchor system
US6315779B1 (en) * 1999-04-16 2001-11-13 Sdgi Holdings, Inc. Multi-axial bone anchor system
US6471703B1 (en) 1999-04-21 2002-10-29 Sdgi Holdings, Inc. Variable angle connection assembly for a spinal implant system
US6254146B1 (en) 1999-04-23 2001-07-03 John Gandy Corporation Thread form with multifacited flanks
US6349794B2 (en) * 1999-04-30 2002-02-26 R. Wilson Spencer Protection plug
DE59913885D1 (en) * 1999-05-14 2006-11-09 Synthes Ag The bone fixation device with rotating joints
US6254602B1 (en) 1999-05-28 2001-07-03 Sdgi Holdings, Inc. Advanced coupling device using shape-memory technology
US6273888B1 (en) 1999-05-28 2001-08-14 Sdgi Holdings, Inc. Device and method for selectively preventing the locking of a shape-memory alloy coupling system
WO2001003593A1 (en) 1999-07-07 2001-01-18 Synthes Ag Chur Bone screw with axially two-part screw head
FR2796545B1 (en) 1999-07-22 2002-03-15 Dimso Sa poly-axial connection for osteosynthesis system, in particular for the spine
FR2796546B1 (en) * 1999-07-23 2001-11-30 Eurosurgical multiaxis connector for spinal implant
DE19936286C2 (en) 1999-08-02 2002-01-17 Lutz Biedermann bone screw
ES2153331B1 (en) 1999-08-05 2001-09-01 Traiber S A Intervertebral fixation system for spinal treatments.
AT243472T (en) 1999-08-14 2003-07-15 Aesculap Ag & Co Kg bone screw
US6280442B1 (en) 1999-09-01 2001-08-28 Sdgi Holdings, Inc. Multi-axial bone screw assembly
CA2423973A1 (en) 1999-09-27 2001-04-05 Blackstone Medical, Inc. A surgical screw system and related methods
US6554834B1 (en) 1999-10-07 2003-04-29 Stryker Spine Slotted head pedicle screw assembly
US6533786B1 (en) * 1999-10-13 2003-03-18 Sdgi Holdings, Inc. Anterior cervical plating system
DE19950252C2 (en) 1999-10-18 2002-01-17 Schaefer Micomed Gmbh bone plate
US6530929B1 (en) * 1999-10-20 2003-03-11 Sdgi Holdings, Inc. Instruments for stabilization of bony structures
US6610091B1 (en) 1999-10-22 2003-08-26 Archus Orthopedics Inc. Facet arthroplasty devices and methods
DE19951145C2 (en) 1999-10-23 2003-11-13 Schaefer Micomed Gmbh osteosynthesis
DE19957332B4 (en) * 1999-11-29 2004-11-11 Bernd Schäfer cross-connector
US6331179B1 (en) 2000-01-06 2001-12-18 Spinal Concepts, Inc. System and method for stabilizing the human spine with a bone plate
US6440135B2 (en) 2000-02-01 2002-08-27 Hand Innovations, Inc. Volar fixation system with articulating stabilization pegs
US6767351B2 (en) 2000-02-01 2004-07-27 Hand Innovations, Inc. Fixation system with multidirectional stabilization pegs
US6716247B2 (en) 2000-02-04 2004-04-06 Gary K. Michelson Expandable push-in interbody spinal fusion implant
DE10005385A1 (en) 2000-02-07 2001-08-09 Ulrich Gmbh & Co Kg pedicle screw
US6443953B1 (en) 2000-02-08 2002-09-03 Cross Medical Products, Inc. Self-aligning cap nut for use with a spinal rod anchor
US6224598B1 (en) * 2000-02-16 2001-05-01 Roger P. Jackson Bone screw threaded plug closure with central set screw
US6375657B1 (en) 2000-03-14 2002-04-23 Hammill Manufacturing Co. Bonescrew
US6309391B1 (en) 2000-03-15 2001-10-30 Sdgi Holding, Inc. Multidirectional pivoting bone screw and fixation system
US7322979B2 (en) 2000-03-15 2008-01-29 Warsaw Orthopedic, Inc. Multidirectional pivoting bone screw and fixation system
AR019513A1 (en) 2000-03-21 2002-02-27 Levisman Ricardo IMPLANT FIXING.
US6440137B1 (en) 2000-04-18 2002-08-27 Andres A. Horvath Medical fastener cap system
EP1274354B8 (en) * 2000-04-19 2007-04-18 Synthes GmbH Device for the articulated connection of two bodies
JP2001309923A (en) 2000-04-28 2001-11-06 Robert Reed Shokai Co Ltd System supporting spinal rod and connection parts to be used therefor
JP2002000611A (en) 2000-05-12 2002-01-08 Sulzer Orthopedics Ltd Bone screw to be joined with the bone plate
FR2810532B1 (en) 2000-06-26 2003-05-30 Stryker Spine Sa bone implant annular locking means
CA2415072C (en) 2000-06-30 2011-05-31 Stephen Ritland Polyaxial connection device and method
GB0016681D0 (en) * 2000-07-06 2000-08-23 Merck Sharp & Dohme Therapeutic compounds
WO2002003885A2 (en) 2000-07-10 2002-01-17 Michelson Gary K Flanged interbody spinal fusion implants
GB2365345B (en) 2000-07-22 2002-07-31 Corin Spinal Systems Ltd A pedicle attachment assembly
EP1174092A3 (en) 2000-07-22 2003-03-26 Corin Spinal Systems Limited A pedicle attachment assembly
WO2002009603A1 (en) 2000-07-28 2002-02-07 Synthes Ag Chur Spinal fixation system
US6533787B1 (en) 2000-07-31 2003-03-18 Sdgi Holdings, Inc. Contourable spinal staple with centralized and unilateral prongs
US6524315B1 (en) 2000-08-08 2003-02-25 Depuy Acromed, Inc. Orthopaedic rod/plate locking mechanism
US20060083603A1 (en) 2000-08-23 2006-04-20 Jackson Roger P Reverse angled threadform with anti-splay clearance
CN1247162C (en) 2000-08-24 2006-03-29 库尔斯恩蒂斯股份公司 Device for connecting a bone fixation element to a longitudinal rod
ES2240384T3 (en) * 2000-09-18 2005-10-16 Zimmer Gmbh Pedicle screw for intervertebral support element.
US6620164B2 (en) 2000-09-22 2003-09-16 Showa Ika Kohgyo Co., Ltd. Rod for cervical vertebra and connecting system thereof
US6551320B2 (en) 2000-11-08 2003-04-22 The Cleveland Clinic Foundation Method and apparatus for correcting spinal deformity
US6953462B2 (en) 2000-10-05 2005-10-11 The Cleveland Clinic Foundation Apparatus for implantation into bone
US6872208B1 (en) * 2000-10-06 2005-03-29 Spinal Concepts, Inc. Adjustable transverse connector
US6520962B1 (en) 2000-10-23 2003-02-18 Sdgi Holdings, Inc. Taper-locked adjustable connector
DE10055888C1 (en) 2000-11-10 2002-04-25 Biedermann Motech Gmbh Bone screw, has connector rod receiving part with unsymmetrically arranged end bores
US6656181B2 (en) 2000-11-22 2003-12-02 Robert A Dixon Method and device utilizing tapered screw shanks for spinal stabilization
US6368321B1 (en) * 2000-12-04 2002-04-09 Roger P. Jackson Lockable swivel head bone screw
US6997927B2 (en) 2000-12-08 2006-02-14 Jackson Roger P closure for rod receiving orthopedic implant having a pair of spaced apertures for removal
US6726687B2 (en) 2000-12-08 2004-04-27 Jackson Roger P Closure plug for open-headed medical implant
US6454772B1 (en) 2000-12-08 2002-09-24 Roger P. Jackson Set screw for medical implant with gripping side slots
DE10064571C2 (en) * 2000-12-22 2003-07-10 Juergen Harms fixing
DE50100793D1 (en) * 2000-12-27 2003-11-20 Biedermann Motech Gmbh Screw for connection to a bar
WO2002054935A2 (en) 2000-12-29 2002-07-18 Thomas James C Jr Vertebral alignment system
US6635059B2 (en) 2001-01-03 2003-10-21 Bernard L. Randall Cannulated locking screw system especially for transiliac implant
US6488681B2 (en) 2001-01-05 2002-12-03 Stryker Spine S.A. Pedicle screw assembly
EP1351614A2 (en) * 2001-01-12 2003-10-15 DePuy Acromed, Inc. Polyaxial screw with improved locking
US6689134B2 (en) * 2002-02-13 2004-02-10 Third Millennium Engineering, Llc Longitudinal plate assembly having an adjustable length
US6451021B1 (en) 2001-02-15 2002-09-17 Third Millennium Engineering, Llc Polyaxial pedicle screw having a rotating locking element
DE10108965B4 (en) 2001-02-17 2006-02-23 DePuy Spine Sàrl bone screw
FR2822052B1 (en) 2001-03-15 2003-09-19 Stryker Spine Sa anchoring member with wedge for spinal osteosynthesis system
FR2822053B1 (en) 2001-03-15 2003-06-20 Stryker Spine Sa anchoring member with safety ring for spinal osteosynthesis system
DE10115014A1 (en) 2001-03-27 2002-10-24 Biedermann Motech Gmbh anchoring element
US6554832B2 (en) 2001-04-02 2003-04-29 Endius Incorporated Polyaxial transverse connector
US6599290B2 (en) 2001-04-17 2003-07-29 Ebi, L.P. Anterior cervical plating system and associated method
US6478798B1 (en) 2001-05-17 2002-11-12 Robert S. Howland Spinal fixation apparatus and methods for use
US7314467B2 (en) 2002-04-24 2008-01-01 Medical Device Advisory Development Group, Llc. Multi selective axis spinal fixation system
US6770075B2 (en) 2001-05-17 2004-08-03 Robert S. Howland Spinal fixation apparatus with enhanced axial support and methods for use
US6440133B1 (en) 2001-07-03 2002-08-27 Sdgi Holdings, Inc. Rod reducer instruments and methods
CH695478A5 (en) 2001-07-20 2006-06-15 Werner Hermann Threaded bolt, and Pedrikelschraube Pedrikelschraube with threaded bolt
DE10136129A1 (en) * 2001-07-27 2003-02-20 Biedermann Motech Gmbh Bone screw and fastening tool for this
US6673074B2 (en) * 2001-08-02 2004-01-06 Endius Incorporated Apparatus for retaining bone portions in a desired spatial relationship
US6520963B1 (en) * 2001-08-13 2003-02-18 Mckinley Lawrence M. Vertebral alignment and fixation assembly
US6746449B2 (en) 2001-09-12 2004-06-08 Spinal Concepts, Inc. Spinal rod translation instrument
US6974460B2 (en) 2001-09-14 2005-12-13 Stryker Spine Biased angulation bone fixation assembly
AT495709T (en) 2001-09-28 2011-02-15 Stephen Ritland hook connecting rod for a polyaxial system with screw or
US6899714B2 (en) 2001-10-03 2005-05-31 Vaughan Medical Technologies, Inc. Vertebral stabilization assembly and method
US6623485B2 (en) * 2001-10-17 2003-09-23 Hammill Manufacturing Company Split ring bone screw for a spinal fixation system
US6783527B2 (en) * 2001-10-30 2004-08-31 Sdgi Holdings, Inc. Flexible spinal stabilization system and method
DE10157969C1 (en) 2001-11-27 2003-02-06 Biedermann Motech Gmbh Element used in spinal and accident surgery comprises a shaft joined to a holding element having a U-shaped recess with two free arms having an internal thread with flanks lying at right angles to the central axis of the holding element
DE10157814B4 (en) 2001-11-27 2004-12-02 Biedermann Motech Gmbh Closing means for securing a rod-shaped element in a retaining element connected to a shaft
FR2833151B1 (en) 2001-12-12 2004-09-17 Ldr Medical Bone anchoring implant head polyaxial
DE10164323C1 (en) 2001-12-28 2003-06-18 Biedermann Motech Gmbh Bone screw has holder element joined to shaft and possessing two free arms , with inner screw, slot, external nut, cavity and shoulder cooperating with attachment
US6761723B2 (en) 2002-01-14 2004-07-13 Dynamic Spine, Inc. Apparatus and method for performing spinal surgery
US6648887B2 (en) 2002-01-23 2003-11-18 Richard B. Ashman Variable angle spinal implant connection assembly
US6641586B2 (en) 2002-02-01 2003-11-04 Depuy Acromed, Inc. Closure system for spinal fixation instrumentation
US6932817B2 (en) 2002-02-01 2005-08-23 Innovative Spinal Design Polyaxial modular skeletal hook
US7678136B2 (en) 2002-02-04 2010-03-16 Spinal, Llc Spinal fixation assembly
US20040006342A1 (en) * 2002-02-13 2004-01-08 Moti Altarac Posterior polyaxial plate system for the spine
EP1474053A1 (en) 2002-02-13 2004-11-10 Cross Medical Products, Inc. Posterior polyaxial system for the spine
US7163538B2 (en) 2002-02-13 2007-01-16 Cross Medical Products, Inc. Posterior rod system
US7066937B2 (en) 2002-02-13 2006-06-27 Endius Incorporated Apparatus for connecting a longitudinal member to a bone portion
FR2836368B1 (en) 2002-02-25 2005-01-14 Spine Next Sa A sequential binding
US6740086B2 (en) 2002-04-18 2004-05-25 Spinal Innovations, Llc Screw and rod fixation assembly and device
US6733502B2 (en) 2002-05-15 2004-05-11 Cross Medical Products, Inc. Variable locking spinal screw having a knurled collar
DE20207850U1 (en) 2002-05-21 2002-10-10 Metz Stavenhagen Peter Anchoring element for fastening a rod of a device for adjusting a human or animal spine to a vertebral bone
US6682529B2 (en) * 2002-06-11 2004-01-27 Stahurski Consulting, Inc. Connector assembly with multidimensional accommodation and associated method
US7175623B2 (en) 2002-06-24 2007-02-13 Lanx, Llc Cervical plate with backout protection
US6730089B2 (en) 2002-08-26 2004-05-04 Roger P. Jackson Nested closure plug and set screw with break-off heads
EP1562499B1 (en) * 2002-09-04 2006-04-26 Aesculap AG & Co. KG Orthopedic fixation device
EP1551320B1 (en) * 2002-09-04 2005-12-07 Aesculap AG & Co. KG Orthopedic fixation device
US20040167524A1 (en) 2002-09-06 2004-08-26 Jackson Roger P. Anti-splay medical implant closure with central multi-surface insertion and removal aperture
US8926672B2 (en) 2004-11-10 2015-01-06 Roger P. Jackson Splay control closure for open bone anchor
US6726689B2 (en) 2002-09-06 2004-04-27 Roger P. Jackson Helical interlocking mating guide and advancement structure
US20040167525A1 (en) 2002-09-06 2004-08-26 Jackson Roger P. Anti-splay medical implant closure with multi-stepped removal counterbore
US8876868B2 (en) 2002-09-06 2014-11-04 Roger P. Jackson Helical guide and advancement flange with radially loaded lip
US20060009773A1 (en) 2002-09-06 2006-01-12 Jackson Roger P Helical interlocking mating guide and advancement structure
US8282673B2 (en) 2002-09-06 2012-10-09 Jackson Roger P Anti-splay medical implant closure with multi-surface removal aperture
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
FR2845269B1 (en) 2002-10-07 2005-06-24 Spine Next Sa fastening system has plate
US6955677B2 (en) 2002-10-15 2005-10-18 The University Of North Carolina At Chapel Hill Multi-angular fastening apparatus and method for surgical bone screw/plate systems
EP1558157B1 (en) 2002-10-30 2012-11-21 Zimmer Spine, Inc. Spinal stabilization system insertion
US8162989B2 (en) * 2002-11-04 2012-04-24 Altus Partners, Llc Orthopedic rod system
FR2847152B1 (en) 2002-11-19 2005-02-18 Eurosurgical An anchoring vertebral and locking device on a polyaxial screw
DE10256095B4 (en) 2002-12-02 2004-11-18 Biedermann Motech Gmbh Element with a shank and a holding element connected thereto for connecting to a rod
AU2002368445B2 (en) * 2002-12-06 2006-10-05 Synthes Gmbh Device for stabilising bones
US6755836B1 (en) 2002-12-20 2004-06-29 High Plains Technology Group, Llc Bone screw fastener and apparatus for inserting and removing same
DE10260222B4 (en) 2002-12-20 2008-01-03 Biedermann Motech Gmbh A tubular member for a to be used in spinal surgery or bone implant and the implant with such an element
US6843791B2 (en) * 2003-01-10 2005-01-18 Depuy Acromed, Inc. Locking cap assembly for spinal fixation instrumentation
US20040158247A1 (en) 2003-02-07 2004-08-12 Arthit Sitiso Polyaxial pedicle screw system
US7875060B2 (en) 2003-09-24 2011-01-25 Spinefrontier, LLS Multi-axial screw with a spherical landing
US20040162560A1 (en) 2003-02-19 2004-08-19 Raynor Donald E. Implant device including threaded locking mechanism
EP1596738A4 (en) 2003-02-25 2010-01-20 Stephen Ritland Adjustable rod and connector device and method of use
US20040186473A1 (en) 2003-03-21 2004-09-23 Cournoyer John R. Spinal fixation devices of improved strength and rigidity
US20040210216A1 (en) 2003-04-17 2004-10-21 Farris Robert A Spinal fixation system and method
DE10320417A1 (en) 2003-05-07 2004-12-02 Biedermann Motech Gmbh Dynamic anchoring device and dynamic stabilization device for bones, in particular for vertebrae, with such an anchoring device
US7377923B2 (en) 2003-05-22 2008-05-27 Alphatec Spine, Inc. Variable angle spinal screw assembly
US6716214B1 (en) 2003-06-18 2004-04-06 Roger P. Jackson Polyaxial bone screw with spline capture connection
US20050131413A1 (en) 2003-06-20 2005-06-16 O'driscoll Shawn W. Bone plate with interference fit screw
FR2857850B1 (en) 2003-06-27 2005-08-19 Medicrea International of vertebral osteosynthesis material
US7087057B2 (en) 2003-06-27 2006-08-08 Depuy Acromed, Inc. Polyaxial bone screw
US7731734B2 (en) 2003-06-27 2010-06-08 Medicrea Technologies Vertebral osteosynthesis equipment
FR2856578B1 (en) 2003-06-27 2006-03-17 Medicrea of vertebral osteosynthesis material
FR2856579B1 (en) 2003-06-27 2006-03-17 Medicrea Spinal osteosynthesis material and method of manufacturing a bone anchor member that comprises this material
JP2007527268A (en) * 2003-07-03 2007-09-27 シンセス ゲーエムベーハー Instrument for moving loading the top loading spinal fixation devices and top loading spinal fixation device
US6945975B2 (en) 2003-07-07 2005-09-20 Aesculap, Inc. Bone fixation assembly and method of securement
US6981973B2 (en) * 2003-08-11 2006-01-03 Mckinley Laurence M Low profile vertebral alignment and fixation assembly
US8137386B2 (en) * 2003-08-28 2012-03-20 Jackson Roger P Polyaxial bone screw apparatus
FR2859095B1 (en) 2003-09-01 2006-05-12 Ldr Medical Bone anchoring implant polyaxial head and establishment of the implant METHOD
US7938858B2 (en) 2003-09-15 2011-05-10 Warsaw Orthopedic, Inc. Spinal implant system
US7335201B2 (en) * 2003-09-26 2008-02-26 Zimmer Spine, Inc. Polyaxial bone screw with torqueless fastening
US20050080415A1 (en) 2003-10-14 2005-04-14 Keyer Thomas R. Polyaxial bone anchor and method of spinal fixation
US7090674B2 (en) 2003-11-03 2006-08-15 Spinal, Llc Bone fixation system with low profile fastener
CA2449883A1 (en) * 2003-11-18 2005-05-18 Terray Corporation Taper-lock bone screw fixation system
US7862586B2 (en) 2003-11-25 2011-01-04 Life Spine, Inc. Spinal stabilization systems
EP1691698A4 (en) 2003-12-12 2008-12-17 Integra Lifesciences Corp Apparatuses, systems and methods for bone fixation
US7527638B2 (en) 2003-12-16 2009-05-05 Depuy Spine, Inc. Methods and devices for minimally invasive spinal fixation element placement
US7670360B2 (en) 2003-12-19 2010-03-02 Orthopaedic International, Inc. Low profile anterior thoracic and thoracolumbar plate
EP1699370A4 (en) 2003-12-30 2008-08-06 Depuy Spine Sarl Bone anchor assemblies and methods of manufacturing bone anchor assemblies
US20050203515A1 (en) 2003-12-30 2005-09-15 Thomas Doherty Bone anchor assemblies
US7678137B2 (en) 2004-01-13 2010-03-16 Life Spine, Inc. Pedicle screw constructs for spine fixation systems
US7637928B2 (en) 2004-01-26 2009-12-29 Synthes Usa, Llc Variable angle locked bone fixation system
FR2865373B1 (en) 2004-01-27 2006-03-03 Medicrea International of vertebral osteosynthesis material
FR2865377B1 (en) 2004-01-27 2006-10-20 Medicrea of vertebral osteosynthesis material
FR2865375B1 (en) 2004-01-27 2006-12-15 Medicrea International of vertebral osteosynthesis material
US7597694B2 (en) 2004-01-30 2009-10-06 Warsaw Orthopedic, Inc. Instruments and methods for minimally invasive spinal stabilization
DE102004009429A1 (en) 2004-02-24 2005-09-22 Biedermann Motech Gmbh Bone anchoring element
US7311712B2 (en) 2004-02-26 2007-12-25 Aesculap Implant Systems, Inc. Polyaxial locking screw plate assembly
US20050203511A1 (en) 2004-03-02 2005-09-15 Wilson-Macdonald James Orthopaedics device and system
DE102004010380A1 (en) 2004-03-03 2005-09-22 Biedermann Motech Gmbh Anchoring element and the stabilization device for dynamic stabilization of vertebrae or bones with such anchoring element
DE102004010382B4 (en) 2004-03-03 2006-04-20 Biedermann Motech Gmbh Bone anchoring element for anchoring in a bone or in a vertebra and its use in a stabilization device
DE102004010844A1 (en) 2004-03-05 2005-10-06 Biedermann Motech Gmbh Stabilization device for dynamic stabilization of vertebrae or bones and rod-shaped element for such a stabilization device
US7503924B2 (en) * 2004-04-08 2009-03-17 Globus Medical, Inc. Polyaxial screw
US7377922B2 (en) 2004-04-15 2008-05-27 Warsaw Orthopedic, Inc. Transfer ring for offset tapered 3D connector
US7524323B2 (en) 2004-04-16 2009-04-28 Kyphon Sarl Subcutaneous support
US7648520B2 (en) 2004-04-16 2010-01-19 Kyphon Sarl Pedicle screw assembly
US7678139B2 (en) 2004-04-20 2010-03-16 Allez Spine, Llc Pedicle screw assembly
US20050240181A1 (en) 2004-04-23 2005-10-27 Boomer Mark C Spinal implant connectors
US7942912B2 (en) * 2004-05-25 2011-05-17 University Of Utah Research Foundation Occipitocervical plate
US7901435B2 (en) 2004-05-28 2011-03-08 Depuy Spine, Inc. Anchoring systems and methods for correcting spinal deformities
DE102004027881B4 (en) 2004-05-28 2006-06-01 Aesculap Ag & Co. Kg Bone screw and osteosynthesis
US7559943B2 (en) 2004-06-09 2009-07-14 Zimmer Spine, Inc. Spinal fixation device with internal drive structure
US7857834B2 (en) 2004-06-14 2010-12-28 Zimmer Spine, Inc. Spinal implant fixation assembly
EP1758511A4 (en) 2004-06-14 2008-12-03 M S Abdou Occipital fixation system and method of use
US7264621B2 (en) 2004-06-17 2007-09-04 Sdgi Holdings, Inc. Multi-axial bone attachment assembly
US7727266B2 (en) 2004-06-17 2010-06-01 Warsaw Orthopedic, Inc. Method and apparatus for retaining screws in a plate
US7766945B2 (en) * 2004-08-10 2010-08-03 Lanx, Inc. Screw and rod fixation system
US7186255B2 (en) * 2004-08-12 2007-03-06 Atlas Spine, Inc. Polyaxial screw
US20060052784A1 (en) * 2004-08-17 2006-03-09 Zimmer Spine, Inc. Polyaxial device for spine stabilization during osteosynthesis
US20060052783A1 (en) * 2004-08-17 2006-03-09 Dant Jack A Polyaxial device for spine stabilization during osteosynthesis
US20060052786A1 (en) * 2004-08-17 2006-03-09 Zimmer Spine, Inc. Polyaxial device for spine stabilization during osteosynthesis
US20060058788A1 (en) * 2004-08-27 2006-03-16 Hammer Michael A Multi-axial connection system
US7794477B2 (en) 2004-10-05 2010-09-14 Warsaw Orthopedic, Inc. Spinal implants and methods with extended multi-axial anchor assemblies
WO2006052796A2 (en) 2004-11-10 2006-05-18 Jackson Roger P Helical guide and advancement flange with break-off extensions
US7833250B2 (en) 2004-11-10 2010-11-16 Jackson Roger P Polyaxial bone screw with helically wound capture connection
US7306606B2 (en) 2004-12-15 2007-12-11 Orthopaedic Innovations, Inc. Multi-axial bone screw mechanism
US7204838B2 (en) 2004-12-20 2007-04-17 Jackson Roger P Medical implant fastener with nested set screw and method
US7776067B2 (en) 2005-05-27 2010-08-17 Jackson Roger P Polyaxial bone screw with shank articulation pressure insert and method
EP1943971B1 (en) 2006-03-31 2009-09-09 BIEDERMANN MOTECH GmbH Locking assembly for bone anchoring device
WO2008118295A2 (en) 2007-03-26 2008-10-02 Laszlo Garamszegi Bottom-loading pedicle screw assembly
US8382809B2 (en) 2008-10-17 2013-02-26 Omni Surgical Poly-axial pedicle screw implements and lock screw therefor
WO2011106339A1 (en) 2010-02-23 2011-09-01 K2M, Inc. Polyaxial bone screw assembly
ES2570782T3 (en) 2011-12-23 2016-05-20 Biedermann Technologies Gmbh Anchoring device polyaxial bone
US8911479B2 (en) 2012-01-10 2014-12-16 Roger P. Jackson Multi-start closures for open implants
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
US9068587B2 (en) 2013-09-20 2015-06-30 Greatbach Ltd. Set screw apparatus
US20150164558A1 (en) 2013-12-12 2015-06-18 Roger P. Jackson Bone anchor closure pivot-splay effect shifting guide and advancement structure with modified square thread
US9717533B2 (en) 2013-12-12 2017-08-01 Roger P. Jackson Bone anchor closure pivot-splay control flange form guide and advancement structure

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9795415B2 (en) * 2000-09-22 2017-10-24 DePuy Synthes Products, Inc. Locking cap assembly for spinal fixation instrumentation
US9907577B2 (en) * 2000-12-08 2018-03-06 Roger P. Jackson Closure for open-headed medical implant

Also Published As

Publication number Publication date
US20130144347A1 (en) 2013-06-06
US9907577B2 (en) 2018-03-06
US8377100B2 (en) 2013-02-19
US10004541B1 (en) 2018-06-26
US20020133159A1 (en) 2002-09-19
US20180296249A1 (en) 2018-10-18
US20160242818A1 (en) 2016-08-25
US20150025580A1 (en) 2015-01-22

Similar Documents

Publication Publication Date Title
US8221472B2 (en) Bone anchor with locking cap and method of spinal fixation
US9186189B2 (en) Bone screw retaining system
US8906062B2 (en) Apparatus for securing a spinal rod system
US7967821B2 (en) Break-off screw extension removal tools
US5707373A (en) Bone fastener and instrument for insertion thereof
US6626906B1 (en) Multi-planar adjustable connector
US6520962B1 (en) Taper-locked adjustable connector
US8343165B2 (en) Apparatus and method for implantation of surgical devices
AU2004254171B2 (en) Polyaxial bone screw with spline capture connection
US6258091B1 (en) Bone fastener and instrument for insertion thereof
EP1222899B1 (en) Pedicle screw assembly
US6443953B1 (en) Self-aligning cap nut for use with a spinal rod anchor
US6666867B2 (en) Longitudinal plate assembly having an adjustable length
EP2177172B1 (en) Instruments for reduction of vertebral bodies
JP4612683B2 (en) Polyaxial bone screw having a threaded shank that is upwardly loaded, and assembling and using
EP0904026B1 (en) A unitary locking cap for use with a pedicle screw
CA2512301C (en) Lock cap anchor assembly for orthopaedic fixation
US5586984A (en) Polyaxial locking screw and coupling element assembly for use with rod fixation apparatus
KR101325250B1 (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
US8221470B2 (en) Spinal fixation system
US6689134B2 (en) Longitudinal plate assembly having an adjustable length
US8257398B2 (en) Polyaxial bone screw with cam capture
US7651516B2 (en) Connection assembly for the field of spinal osteosynthesis and method for using at least one such assembly
US7226453B2 (en) Instrument for inserting, adjusting and removing pedicle screws and other orthopedic implants
US7931681B2 (en) Anti-backout mechanism for an implant fastener