CA2343327A1 - Variable angle spinal fixation system - Google Patents

Variable angle spinal fixation system Download PDF

Info

Publication number
CA2343327A1
CA2343327A1 CA002343327A CA2343327A CA2343327A1 CA 2343327 A1 CA2343327 A1 CA 2343327A1 CA 002343327 A CA002343327 A CA 002343327A CA 2343327 A CA2343327 A CA 2343327A CA 2343327 A1 CA2343327 A1 CA 2343327A1
Authority
CA
Canada
Prior art keywords
fastener
connector member
spinal fixation
variable angle
fixation system
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
CA002343327A
Other languages
French (fr)
Other versions
CA2343327C (en
Inventor
Michael Brace
Eric Lange
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.)
Synthes USA LLC
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2343327A1 publication Critical patent/CA2343327A1/en
Application granted granted Critical
Publication of CA2343327C publication Critical patent/CA2343327C/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
    • 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
    • A61B17/7035—Screws or hooks, wherein a rod-clamping part and a bone-anchoring part can pivot relative to each other
    • A61B17/704—Screws or hooks, wherein a rod-clamping part and a bone-anchoring part can pivot relative to each other the longitudinal element passing through a ball-joint in the screw head

Landscapes

  • Health & Medical Sciences (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Neurology (AREA)
  • Surgery (AREA)
  • Molecular Biology (AREA)
  • General Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Animal Behavior & Ethology (AREA)
  • Engineering & Computer Science (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Surgical Instruments (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)
  • Body Structure For Vehicles (AREA)
  • Vehicle Body Suspensions (AREA)
  • Polarising Elements (AREA)
  • Prostheses (AREA)

Abstract

A variable angle spinal fixation system is disclosed. The system includes a longitudinal member positionable along a spinal column, a fastener having a threaded end for engaging a vertebra, and a connector member for connecting the fastener and the longitudinal member. The connector member has a channel extending through side surfaces of the connector member for receiving the longitudinal member, an opening laterally displaced from the channel and extending through top and bottom surfaces of the connector member for receiving the fastener, and a fastener clamping element for securing the fastener in the opening at a surgeon selected angle relative to the connector member and longitudinal member. The system according to the present invention allows angulation of the fastener to accommodate complex pathologies.
CA002343327A 1998-09-11 1999-09-07 Variable angle spinal fixation system Expired - Fee Related CA2343327C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US9997698P 1998-09-11 1998-09-11
US60/099,976 1998-09-11
PCT/CH1999/000414 WO2000015125A1 (en) 1998-09-11 1999-09-07 Variable angle spinal fixation system

Publications (2)

Publication Number Publication Date
CA2343327A1 true CA2343327A1 (en) 2000-03-23
CA2343327C CA2343327C (en) 2003-02-11

Family

ID=22277509

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002343327A Expired - Fee Related CA2343327C (en) 1998-09-11 1999-09-07 Variable angle spinal fixation system

Country Status (11)

Country Link
US (1) US6187005B1 (en)
EP (1) EP1109502B1 (en)
JP (1) JP4156804B2 (en)
AT (1) ATE320223T1 (en)
AU (1) AU751174B2 (en)
CA (1) CA2343327C (en)
DE (1) DE69930391T2 (en)
ES (1) ES2260927T3 (en)
HK (1) HK1036745A1 (en)
WO (1) WO2000015125A1 (en)
ZA (1) ZA200100673B (en)

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AU5404799A (en) 2000-04-03
CA2343327C (en) 2003-02-11
EP1109502B1 (en) 2006-03-15
ATE320223T1 (en) 2006-04-15
EP1109502A1 (en) 2001-06-27
JP2002524188A (en) 2002-08-06
AU751174B2 (en) 2002-08-08
WO2000015125A1 (en) 2000-03-23
ZA200100673B (en) 2001-08-28
ES2260927T3 (en) 2006-11-01
DE69930391T2 (en) 2006-12-07
DE69930391D1 (en) 2006-05-11
US6187005B1 (en) 2001-02-13
HK1036745A1 (en) 2002-01-18
JP4156804B2 (en) 2008-09-24

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