CA2149036A1 - Apparatus and method for spinal fixation - Google Patents

Apparatus and method for spinal fixation

Info

Publication number
CA2149036A1
CA2149036A1 CA002149036A CA2149036A CA2149036A1 CA 2149036 A1 CA2149036 A1 CA 2149036A1 CA 002149036 A CA002149036 A CA 002149036A CA 2149036 A CA2149036 A CA 2149036A CA 2149036 A1 CA2149036 A1 CA 2149036A1
Authority
CA
Canada
Prior art keywords
rod
ring
connection element
screw
bone anchorage
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
CA002149036A
Other languages
French (fr)
Other versions
CA2149036C (en
Inventor
Roger P. Jackson
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
Roger P. Jackson
Sofamor Danek Group, Inc.
Societe De Fabrication De Materiel Orthopedique, S.N.C. D/B/A Sofamor, S.N.C.
Sdgi Holdings, Inc.
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 Roger P. Jackson, Sofamor Danek Group, Inc., Societe De Fabrication De Materiel Orthopedique, S.N.C. D/B/A Sofamor, S.N.C., Sdgi Holdings, Inc., Warsaw Orthopedic, Inc. filed Critical Roger P. Jackson
Publication of CA2149036A1 publication Critical patent/CA2149036A1/en
Application granted granted Critical
Publication of CA2149036C publication Critical patent/CA2149036C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/70—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
    • A61B17/7002—Longitudinal elements, e.g. rods
    • 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
    • A61B17/7074—Tools specially adapted for spinal fixation operations other than for bone removal or filler handling
    • A61B17/7076—Tools 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
    • A61B17/7077—Tools 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 moving bone anchors attached to vertebrae, thereby displacing the vertebrae
    • A61B17/7079—Tools requiring anchors to be already mounted on an implanted longitudinal or transverse element, e.g. where said element guides the anchor motion
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
    • A61B17/8863—Apparatus for shaping or cutting osteosynthesis equipment by medical personnel

Abstract

This device comprises a connection element (4) between a rod (1), or other longitudinal implant, and a bone anchorage screw (3) in the degenerative vertebra. This connection element (4) includes a ring (8) so dimensioned that the rod (1) is capable of extending therethrough. The ring is provided with screws (14) for clamping to the rod (1} and is radially extended by a cylindrical arm (9) adapted to be secured to the bone anchorage screw (3) and to be clamped on the screw. The arm (9) and the ring (8) constitute a unit in one piece. The invention enables the surgeon to avoid having to produce additional deformations of the rod (1) when it is in presence of non-aligned pedicles by leaving to the surgeon complete liberty as to the position of the two axes of the bone anchorage screw (3) and of the rod (1). The invention further contemplates using the lateral connection element to facilitate contouring the longitudinal implant within the patient, or in situ to segmentally and globally correct spinal deformities in all degrees of freedom.
CA002149036A 1992-11-09 1993-10-15 Apparatus and method for spinal fixation Expired - Fee Related CA2149036C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR92/13476 1992-11-09
FR9213476A FR2697743B1 (en) 1992-11-09 1992-11-09 Spinal osteosynthesis device applicable in particular to degenerative vertebrae.
PCT/US1993/009919 WO1994010944A1 (en) 1992-11-09 1993-10-15 Apparatus and method for spinal fixation

Publications (2)

Publication Number Publication Date
CA2149036A1 true CA2149036A1 (en) 1994-05-26
CA2149036C CA2149036C (en) 2005-12-06

Family

ID=9435372

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002149036A Expired - Fee Related CA2149036C (en) 1992-11-09 1993-10-15 Apparatus and method for spinal fixation

Country Status (12)

Country Link
US (1) US5591165A (en)
EP (1) EP0719118B1 (en)
JP (1) JP3570718B2 (en)
AT (1) ATE187632T1 (en)
AU (1) AU682013B2 (en)
CA (1) CA2149036C (en)
DE (1) DE69327345T2 (en)
FI (1) FI952192A0 (en)
FR (1) FR2697743B1 (en)
NO (1) NO951793L (en)
TW (1) TW302278B (en)
WO (1) WO1994010944A1 (en)

Families Citing this family (296)

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JPH08506025A (en) 1996-07-02
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FR2697743B1 (en) 1995-01-27
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JP3570718B2 (en) 2004-09-29
AU5362994A (en) 1994-06-08
EP0719118A4 (en) 1996-02-06
DE69327345T2 (en) 2000-08-03
CA2149036C (en) 2005-12-06
US5591165A (en) 1997-01-07
ATE187632T1 (en) 2000-01-15
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EP0719118A1 (en) 1996-07-03
NO951793D0 (en) 1995-05-08
FR2697743A1 (en) 1994-05-13
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DE69327345D1 (en) 2000-01-20
WO1994010944A1 (en) 1994-05-26

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