DE1075224T1 - Wirbelsäulen-osteosynthesesystem mit spannvorrichtung, insbesondere zur vorderen fixierung - Google Patents

Wirbelsäulen-osteosynthesesystem mit spannvorrichtung, insbesondere zur vorderen fixierung

Info

Publication number
DE1075224T1
DE1075224T1 DE1075224T DE99916956T DE1075224T1 DE 1075224 T1 DE1075224 T1 DE 1075224T1 DE 1075224 T DE1075224 T DE 1075224T DE 99916956 T DE99916956 T DE 99916956T DE 1075224 T1 DE1075224 T1 DE 1075224T1
Authority
DE
Germany
Prior art keywords
screw
arms
head
recess
threaded
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.)
Pending
Application number
DE1075224T
Other languages
English (en)
Inventor
Richard Assaker
Frederic Conchy
Regis Le Couedic
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.)
Stryker Spine SAS
Original Assignee
Dimso SA
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 FR9805387A external-priority patent/FR2778086B1/fr
Priority claimed from FR9812662A external-priority patent/FR2784282B1/fr
Application filed by Dimso SA filed Critical Dimso SA
Publication of DE1075224T1 publication Critical patent/DE1075224T1/de
Pending 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
    • A61B17/7041—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
    • A61B17/7037—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
    • A61B17/7044—Screws or hooks combined with longitudinal elements which do not contact vertebrae also having plates, staples or washers bearing on the vertebrae
    • 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)
  • 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)
  • Prostheses (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)

Claims (9)

Patentansprüche
1. Osteosynthesesystem für das Rückgrat, insbesondere mit vorhergehender Befestigung, mit:
- einer Wirbelschraube (8), welche einen gewindeten Kopf (32) aufweist;
- einem Verbindungsstück (6) mit zwei Armen (16), welche dafür geeignet sind, auf der Schraube (8) aufgefädelt zu werden und zwischen sich das Verbindungselement (2) einzuklemmen; und
- einem gewindeten Spannorgan (10), das dafür geeignet ist, mit dem Kopf (32) zusammenzuwirken, um die Arme (16) festzuspannen,
dadurch gekennzeichnet, daß der Kopf (32) eine gewindete Öffnung (39) aufweist, wobei das Spannorgan (10) eine gewindete Stange (42) aufweist, welche dafür geeignet ist, mit der Öffnung (39) einzugreifen.
2. System gemäß Anspruch 1, dadurch gekennzeichnet, daß das Spannorgan (10) eine Vertiefung mit polygonalem Profil gemäß einer Längsachse des Organs aufweist.
3. System gemäß Anspruch 1 oder 2, dadurch gekennzeichnet, daß das Spannorgan (10) einen Kopf (44) aufweist, der eine konvexe kugelförmige untere Fläche (46) aufweist, wobei einer der Arme (16) des Verbindungsstückes eine konkave kugelförmige obere Fläche (40) aufweist, die dafür geeignet ist, während des Festspannens der Arme mit der konvexen Fläche (46) in Kontakt zu sein.
4. System gemäß irgendeinem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Öffnung (39) der Wirbelschraube (8) eine Vertiefung mit polygonalem Profil gemäß einer Längsachse der Schraube aufweist.
5. System gemäß Anspruch 4, dadurch gekennzeichnet, daß sich die Vertiefung in das Gewinde der Öffnung (39) erstreckt.
6. System gemäß Anspruch 2 und Anspruch 4, dadurch gekennzeichnet, daß das Profil der Vertiefung der Wirbelschraube (8) und das Profil der Vertiefung des Spannorgans (10) die gleiche Form und die gleichen Abmessungen aufweisen.
7. System gemäß irgendeinem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß der Kopf (32) der Wirbelschraube (8) eine glatte äußere Endseitenfläche (34) aufweist.
8. System gemäß irgendeinem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß es eine zweite Wirbelschraube (18) aufweist, wobei einer der Arme (16) eine Verlängerung (50) aufweist, welche dafür geeignet ist, in Eingriff auf der zweiten Schraube zu kommen.
9. System gemäß irgendeinem der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß es ein zweites längliches Verbindungselement (3) aufweist, wobei das Verbindungsstück (6) dafür geeignet ist, gleichzeitig an den beiden Verbindungselementen (2, 3) befestigt zu sein.
DE1075224T 1998-04-29 1999-04-29 Wirbelsäulen-osteosynthesesystem mit spannvorrichtung, insbesondere zur vorderen fixierung Pending DE1075224T1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9805387A FR2778086B1 (fr) 1998-04-29 1998-04-29 Systeme d'osteosynthese rachidienne pour une fixation anterieure
FR9812662A FR2784282B1 (fr) 1998-10-09 1998-10-09 Systeme d'osteosynthese rachidienne a rigidite amelioree
PCT/FR1999/001020 WO1999055247A1 (fr) 1998-04-29 1999-04-29 Systeme d'osteosynthese rachidienne avec moyens de serrage notamment pour une fixation anterieure

Publications (1)

Publication Number Publication Date
DE1075224T1 true DE1075224T1 (de) 2001-10-11

Family

ID=26234298

Family Applications (3)

Application Number Title Priority Date Filing Date
DE1075224T Pending DE1075224T1 (de) 1998-04-29 1999-04-29 Wirbelsäulen-osteosynthesesystem mit spannvorrichtung, insbesondere zur vorderen fixierung
DE69928389T Expired - Lifetime DE69928389T2 (de) 1998-04-29 1999-04-29 Wirbelsäulen-osteosynthesesystem insbesondere zur vorderen fixierung
DE69905707T Expired - Lifetime DE69905707T2 (de) 1998-04-29 1999-04-29 Wirbelsäulen-osteosynthesesystem mit spannvorrichtung, insbesondere zur vorderen fixierung

Family Applications After (2)

Application Number Title Priority Date Filing Date
DE69928389T Expired - Lifetime DE69928389T2 (de) 1998-04-29 1999-04-29 Wirbelsäulen-osteosynthesesystem insbesondere zur vorderen fixierung
DE69905707T Expired - Lifetime DE69905707T2 (de) 1998-04-29 1999-04-29 Wirbelsäulen-osteosynthesesystem mit spannvorrichtung, insbesondere zur vorderen fixierung

Country Status (10)

Country Link
US (4) US6565569B1 (de)
EP (2) EP1075223B1 (de)
JP (2) JP4245807B2 (de)
KR (2) KR20010043166A (de)
AT (2) ATE233521T1 (de)
AU (2) AU759236B2 (de)
CA (2) CA2330802A1 (de)
DE (3) DE1075224T1 (de)
ES (1) ES2155427T3 (de)
WO (2) WO1999055247A1 (de)

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US7008423B2 (en) 2006-03-07
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US6881215B2 (en) 2005-04-19
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