CA2473930C - Assemblage de fixation d'implant rachidien a angle variable - Google Patents

Assemblage de fixation d'implant rachidien a angle variable Download PDF

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Publication number
CA2473930C
CA2473930C CA002473930A CA2473930A CA2473930C CA 2473930 C CA2473930 C CA 2473930C CA 002473930 A CA002473930 A CA 002473930A CA 2473930 A CA2473930 A CA 2473930A CA 2473930 C CA2473930 C CA 2473930C
Authority
CA
Canada
Prior art keywords
bore
clamp
stem
defining
variable angle
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
CA002473930A
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English (en)
Other versions
CA2473930A1 (fr
Inventor
Richard B. Ashman
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.)
Individual
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
Priority claimed from US10/055,050 external-priority patent/US6648887B2/en
Application filed by Individual filed Critical Individual
Publication of CA2473930A1 publication Critical patent/CA2473930A1/fr
Application granted granted Critical
Publication of CA2473930C publication Critical patent/CA2473930C/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • 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 or setting implements
    • 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, e.g. 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
    • 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 or setting implements
    • 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, e.g. 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
    • 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 or setting implements
    • 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, e.g. 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

Landscapes

  • Health & Medical Sciences (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Neurology (AREA)
  • Surgery (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Surgical Instruments (AREA)

Abstract

L'invention concerne une pince à angle variable (50) destinée à être utilisée avec un assemblage d'implant rachidien comprenant un tige de rachis (R), une vis de Schantz (45), et un élément de connexion (10) recevant une tige de rachis (R). L'élément de connexion (10) comprend une tige et une embase (20) montée sur la tige (16) avec une première surface de serrage définissant une caractéristique d'angle variable. La tige (16) comporte une terminaison sous forme d'une barre en T (17) définissant une seconde surface de serrage. La pince à angle variable (50) définit un alésage (66) conçu afin de recevoir la vis de Schantz (45). Une surface extérieure du corps de la pince définit une caractéristique d'angle variable (56), disposée contre la première surface de serrage, et une surface extérieure opposée adaptée à un contact par pression avec la seconde surface de serrage. Dans un mode de réalisation, la pince comprend une paire de demi-pinces (52 & 54) formant un alésage (66) destiné à recevoir le fût de la vis (47). Dans un autre mode de réalisation, le corps de la pince (100) définit une encoche (120) en communication avec l'alésage (116) conçue de façon qu'une portion de l'embase (20') passe dans l'encoche et dans l'alésage afin de rentrer en contact avec la vis de rachis.
CA002473930A 2002-01-23 2003-01-23 Assemblage de fixation d'implant rachidien a angle variable Expired - Lifetime CA2473930C (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US10/055,050 US6648887B2 (en) 2002-01-23 2002-01-23 Variable angle spinal implant connection assembly
US10/055,050 2002-01-23
US40665102P 2002-08-28 2002-08-28
US60/406,651 2002-08-28
PCT/US2003/002037 WO2003061494A1 (fr) 2002-01-23 2003-01-23 Assemblage de fixation d'implant rachidien a angle variable

Publications (2)

Publication Number Publication Date
CA2473930A1 CA2473930A1 (fr) 2003-07-31
CA2473930C true CA2473930C (fr) 2007-10-30

Family

ID=27615954

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002473930A Expired - Lifetime CA2473930C (fr) 2002-01-23 2003-01-23 Assemblage de fixation d'implant rachidien a angle variable

Country Status (3)

Country Link
EP (1) EP1474052A4 (fr)
CA (1) CA2473930C (fr)
WO (1) WO2003061494A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8636783B2 (en) 2006-12-29 2014-01-28 Zimmer Spine, Inc. Spinal stabilization systems and methods

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5002542A (en) * 1989-10-30 1991-03-26 Synthes U.S.A. Pedicle screw clamp
US5282901A (en) 1990-02-28 1994-02-01 Kay Chemical Company Method for dispensing different amounts of detergent in a warewash machine depending on a fill cycle or a rinse cycle
US5261909A (en) 1992-02-18 1993-11-16 Danek Medical, Inc. Variable angle screw for spinal implant system
US5282801A (en) 1993-02-17 1994-02-01 Danek Medical, Inc. Top tightening clamp assembly for a spinal fixation system
US5643263A (en) * 1995-08-14 1997-07-01 Simonson; Peter Melott Spinal implant connection assembly
US6416515B1 (en) * 1996-10-24 2002-07-09 Spinal Concepts, Inc. Spinal fixation system
US6183473B1 (en) * 1999-04-21 2001-02-06 Richard B Ashman Variable angle connection assembly for a spinal implant system
US6210413B1 (en) * 1999-04-23 2001-04-03 Sdgi Holdings, Inc. Connecting apparatus using shape-memory technology
US6562038B1 (en) * 2000-03-15 2003-05-13 Sdgi Holdings, Inc. Spinal implant connection assembly

Also Published As

Publication number Publication date
EP1474052A4 (fr) 2010-12-22
EP1474052A1 (fr) 2004-11-10
CA2473930A1 (fr) 2003-07-31
WO2003061494A1 (fr) 2003-07-31

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Effective date: 20230123