CA2536336A1 - Multi-axial orthopedic device and system, e.g. for spinal surgery - Google Patents

Multi-axial orthopedic device and system, e.g. for spinal surgery Download PDF

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Publication number
CA2536336A1
CA2536336A1 CA002536336A CA2536336A CA2536336A1 CA 2536336 A1 CA2536336 A1 CA 2536336A1 CA 002536336 A CA002536336 A CA 002536336A CA 2536336 A CA2536336 A CA 2536336A CA 2536336 A1 CA2536336 A1 CA 2536336A1
Authority
CA
Canada
Prior art keywords
base member
receiver
receiver member
base
angular position
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
CA002536336A
Other languages
French (fr)
Other versions
CA2536336C (en
Inventor
Robert A. Farris
Jeffrey W. Poyner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Warsaw Orthopedic Inc
Original Assignee
Sdgi Holdings, Inc.
Robert A. Farris
Jeffrey W. Poyner
Warsaw Orthopedic, Inc.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sdgi Holdings, Inc., Robert A. Farris, Jeffrey W. Poyner, Warsaw Orthopedic, Inc. filed Critical Sdgi Holdings, Inc.
Publication of CA2536336A1 publication Critical patent/CA2536336A1/en
Application granted granted Critical
Publication of CA2536336C publication Critical patent/CA2536336C/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/70—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
    • A61B17/7001—Screws or hooks combined with longitudinal elements which do not contact vertebrae
    • A61B17/7035—Screws or hooks, wherein a rod-clamping part and a bone-anchoring part can pivot relative to each other
    • A61B17/7037—Screws or hooks, wherein a rod-clamping part and a bone-anchoring part can pivot relative to each other wherein pivoting is blocked when the rod is clamped
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/70—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
    • A61B17/7001—Screws or hooks combined with longitudinal elements which do not contact vertebrae
    • A61B17/7035—Screws or hooks, wherein a rod-clamping part and a bone-anchoring part can pivot relative to each other
    • A61B17/7038—Screws or hooks, wherein a rod-clamping part and a bone-anchoring part can pivot relative to each other to a different extent in different directions, e.g. within one plane only
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/70—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
    • A61B17/7001—Screws or hooks combined with longitudinal elements which do not contact vertebrae
    • A61B17/7041—Screws or hooks combined with longitudinal elements which do not contact vertebrae with single longitudinal rod offset laterally from single row of screws or hooks
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/70—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
    • A61B17/7001—Screws or hooks combined with longitudinal elements which do not contact vertebrae
    • A61B17/7002—Longitudinal elements, e.g. rods
    • A61B17/7011—Longitudinal element being non-straight, e.g. curved, angled or branched
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/70—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
    • A61B17/7001—Screws or hooks combined with longitudinal elements which do not contact vertebrae
    • A61B17/7032—Screws or hooks with U-shaped head or back through which longitudinal rods pass
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/70—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
    • A61B17/7049—Connectors, not bearing on the vertebrae, for linking longitudinal elements together
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B2017/00831—Material properties
    • A61B2017/00867—Material properties shape memory effect
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B90/00—Instruments, 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
    • A61B90/03—Automatic limiting or abutting means, e.g. for safety
    • A61B2090/033—Abutting means, stops, e.g. abutting on tissue or skin
    • A61B2090/034—Abutting means, stops, e.g. abutting on tissue or skin abutting on parts of the device itself
    • A61B2090/035—Abutting means, stops, e.g. abutting on tissue or skin abutting on parts of the device itself preventing further rotation

Abstract

Embodiments of an orthopedic implant device and system, and methods for implanting them, are disclosed. The implant may include a receiver member (309) having a channel (35) for accommodating an elongated rod (16) or other longitudinal member, a bone anchoring member (31) such as a screw or hook, and a base member (32) rotatable with respect to the receiver member for retaining the bone anchoring member in the receiver member. The base member is configured to allow at least two different degrees of maximum angulation of the bone anchoring member with respect to the receiver member. The number and relative direction of such angulations are independent of the orientation of the channel or other part of the receiving member.

Claims (44)

1. A bone fixation system, comprising:
a receiver member having a longitudinal axis;
a bone anchoring member having a head portion and a bone-engaging portion, said bone anchoring member having at least a first maximum angular position and a second maximum angular position relative to said axis, wherein said second maximum angular position includes a greater angle relative to said axis than said first maximum angular position; and a base member rotatably connected to said receiver member adjacent to said bone anchoring member, said base member having at least one wall defining an opening that allows said bone anchoring member to occupy either of said first maximum angular position and said second maximum angular position.
2. The system of claim 1, wherein said base member opening has at least a first sized portion corresponding to the first maximum angular position and a second sized portion corresponding to the second maximum angular position.
3. The system of claim 1, wherein said base member connects to said receiver member so that at least part of said base member is within said receiver member.
4. The system of claim 3, wherein said first sized portion of said base member opening includes a first opening, and said second sized portion of said base member opening includes an elongated portion.
5. The system of claim 4, wherein said base member is substantially in the form of a C-shaped member defining a gap, and said gap forms at least part of said elongated portion of said second sized portion of said base member opening.
6. The system of claim 4, wherein said base member is substantially in the form of a continuous circumference washer member.
7. The system of claim 3, wherein said receiver member includes a bottom surface having an aperture, and said base member is insertable into said receiver member through said aperture.
8. The system of claim 7, wherein said receiver member includes at least one groove communicating with said aperture, and said base member includes at least one flange, and wherein said base member and said receiver member are rotatably connected by inserting said at least one flange into said at least one groove.
9. The system of claim 3, wherein said receiver member includes a side surface having an aperture, and said base member is insertable into said receiver member through said aperture.
10. The system of claim 9, wherein said receiver member includes at least one groove communicating with said aperture, and said base member includes at least one flange, and wherein said base member and said receiver member are rotatably connected by inserting said at least one flange into said at least one groove.
11. The system of claim 1, wherein said base member connects to said receiver member so that at least part of said base member is external of said receiver member.
12. The system of claim 11, wherein said receiver member has at least one exterior portion with a groove, and said base member has at least one flange, and wherein said base member and said receiver member are rotatably connected by inserting said at least one flange into said at least one groove.
13. The system of claim 11, wherein said receiver member has at least one exterior portion with a first groove, and said base member has at least one interior portion with a second groove, and further comprising a ring member adapted to occupy at least a portion of said first and second grooves.
14. The system of claim 11, wherein said receiver member has at least one exterior portion with a thread, and said base member has a threaded portion, and wherein said base member and said receiver member are rotatably connected by connecting their respective threaded portions.
15. The system of claim 2, wherein said base member has a side surface, and said second sized portion of said base member opening extends to said side surface and forms a notch in said side surface.
16. The system of claim 1, wherein said receiver member has a longitudinal axis, and said base member opening is in a plane that is non-perpendicular to said axis so that different parts of said base member opening are different distances from said channel.
17. The system of claim 1 further comprising one or more implants from the group consisting of cross connectors, lateral connectors, monoaxial bone anchoring members, multi-axial bone anchoring members, plate members, and occipital fixators.
18 18. The system of claim 1, wherein said elongated member is a spinal rod.
19. The system of claim 18, wherein said elongated member is a spinal rod having a substantially constant diameter.
20. The system of claim 18, wherein said elongated member is a spinal rod having a first portion with a first substantially constant diameter and a second portion with a second substantially constant diameter that is larger than said first diameter.
21. The system of claim 1, wherein at least one of said receiver member and said base member is at least partially made of a shape-memory alloy.
22. A bone fixation system, comprising:
a receiver member having at least one wall defining a channel for receiving at least a portion of an elongated body;
a bone anchoring member having a head portion and a bone-engaging portion, said bone anchoring member having at least a first maximum angular position and a second maximum angular position relative to said receiver member, wherein said second maximum angular position includes a greater angle relative to said receiver member than said first maximum angular position; and a base member rotatably connected to said receiver member, said base member having at least one wall defining an opening that allows said bone anchoring member to occupy either of said first maximum angular position and said second maximum angular position.
23. The system of claim 22, wherein said base member opening has at least a first sized portion corresponding to the first maximum angular position and a second sized portion corresponding to the second maximum angular position.
24. The system of claim 22, wherein said base member connects to said receiver member so that at least part of said base member is within said receiver member.
25. The system of claim 24, wherein said first sized portion of said base member opening includes a substantially circular portion, and said second sized portion of said base member opening includes an elongated portion.
26. The system of claim 25, wherein said base member is substantially in the form of a C-shaped member defining a gap, and said gap forms at least part of said elongated portion of said second sized portion of said base member opening.
27. The system of claim 25, wherein said base member is substantially in the form of a continuous circumference washer member.
28. The system of claim 24, wherein said receiver member includes a bottom surface having an aperture, and said base member is insertable into said receiver member through said aperture.
29. The system of claim 28, wherein said receiver member includes at least one groove communicating with said aperture, and said base member includes at least one flange, and wherein said base member and said receiver member are rotatably connected by inserting said at least one flange into said at least one groove.
30. The system of claim 24, wherein said receiver member includes a side surface having an aperture, and said base member is insertable into said receiver member through said aperture.
31. The system of claim 30, wherein said receiver member includes at least one groove communicating with said aperture, and said base member includes at least one flange, and wherein said base member and said receiver member are rotatably connected by inserting said at least one flange into said at least one groove.
32. The system of claim 22, wherein said base member connects to said receiver member so that at least part of said base member is external of said receiver member.
33. The system of claim 32, wherein said receiver member has at least one exterior portion with a groove, and said base member has at least one flange, and wherein said base member and said receiver member are rotatably connected by inserting said at least one flange into said at least one groove.
34. The system of claim 32, wherein said receiver member has at least one exterior portion with a thread, and said base member has a threaded portion, and wherein said base member and said receiver member are rotatably connected by connecting their respective threaded portions.
35. The system of claim 23, wherein said base member has a side surface, and said second sized portion of said base member opening extends to said side surface and forms a notch in said side surface.
36. The system of claim 22, wherein said receiver member has a longitudinal axis, and said base member opening is in a plane that is non-perpendicular to said axis so that different parts of said base member opening are different distances from said channel.
37. The system of claim 22 further comprising one or more implants from the group consisting of cross connectors, lateral connectors, monoaxial bone anchoring members, multi-axial bone anchoring members, plate members, and occipital fixators.
38. The system of claim 22, wherein said elongated member is a spinal rod.
39. The system of claim 38, wherein said elongated member is a spinal rod having a substantially constant diameter.
40. The system of claim 38, wherein said elongated member is a spinal rod having a first portion with a first substantially constant diameter and a second portion with a second substantially constant diameter that is larger than said first diameter.
41. An orthopedic implant apparatus comprising:
a receiver member having at least one wall defining a channel for receiving at least a portion of an elongated body, said receiver member having a longitudinal axis;
a bone anchoring member having a head portion and a bone-engaging portion; a base member rotatably connected to said receiver member, said base member permitting multi-axial positioning of said bone attachment member with respect to said receiver member, said base member and said bone anchoring member having a first relative position wherein the maximum angle between said bone anchoring member and said axis is a first value, and wherein other relative positions of said base member and said bone attachment member allow a maximum angle between said bone anchoring member and said axis that is less than said first value, and said first relative position is independent of the orientation of said channel of said receiver member.
42. The apparatus of claim 41, wherein said receiver member has a side wall with an opening adapted to enable insertion of said base member therethrough.
43. The apparatus of claim 41, wherein said base member has a-lower surface that is non-perpendicular to said axis when said base member is connected to said receiver member.
44. The apparatus of claim 41, wherein said base member has a side wall with a notch, and wherein in said first relative position at least a portion of said bone anchoring member is substantially aligned with at least a portion of said notch.
CA2536336A 2003-08-20 2004-08-20 Multi-axial orthopedic device and system, e.g. for spinal surgery Expired - Fee Related CA2536336C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US49653603P 2003-08-20 2003-08-20
US60/496,536 2003-08-20
PCT/US2004/027201 WO2005018471A1 (en) 2003-08-20 2004-08-20 Multi-axial orthopedic device and system, e.g. for spinal surgery

Publications (2)

Publication Number Publication Date
CA2536336A1 true CA2536336A1 (en) 2005-03-03
CA2536336C CA2536336C (en) 2012-04-10

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Family Applications (1)

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CA2536336A Expired - Fee Related CA2536336C (en) 2003-08-20 2004-08-20 Multi-axial orthopedic device and system, e.g. for spinal surgery

Country Status (8)

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US (2) US8021397B2 (en)
EP (1) EP1673024B1 (en)
JP (1) JP2007502677A (en)
KR (1) KR101079022B1 (en)
CN (1) CN100430029C (en)
AU (1) AU2004266737B2 (en)
CA (1) CA2536336C (en)
WO (1) WO2005018471A1 (en)

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US8021397B2 (en) 2011-09-20
CN100430029C (en) 2008-11-05
US20120010661A1 (en) 2012-01-12
EP1673024B1 (en) 2014-04-09
JP2007502677A (en) 2007-02-15
EP1673024A1 (en) 2006-06-28
US9610105B2 (en) 2017-04-04
KR101079022B1 (en) 2011-11-01
AU2004266737A1 (en) 2005-03-03
CA2536336C (en) 2012-04-10
US20050080420A1 (en) 2005-04-14
AU2004266737B2 (en) 2010-05-13
WO2005018471A1 (en) 2005-03-03
KR20060114682A (en) 2006-11-07
CN1856278A (en) 2006-11-01

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