CA2669794C - Vis a os a ajustage angulaire et dispositif de fixation pour os en os de synthese - Google Patents

Vis a os a ajustage angulaire et dispositif de fixation pour os en os de synthese Download PDF

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Publication number
CA2669794C
CA2669794C CA2669794A CA2669794A CA2669794C CA 2669794 C CA2669794 C CA 2669794C CA 2669794 A CA2669794 A CA 2669794A CA 2669794 A CA2669794 A CA 2669794A CA 2669794 C CA2669794 C CA 2669794C
Authority
CA
Canada
Prior art keywords
screw
bone
head
shank
bone fixation
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 - Fee Related
Application number
CA2669794A
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English (en)
Other versions
CA2669794A1 (fr
Inventor
Robert Frigg
Robert Ferus
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
Synthes USA LLC
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 Synthes USA LLC filed Critical Synthes USA LLC
Priority to CA2669794A priority Critical patent/CA2669794C/fr
Priority claimed from CA002375533A external-priority patent/CA2375533C/fr
Publication of CA2669794A1 publication Critical patent/CA2669794A1/fr
Application granted granted Critical
Publication of CA2669794C publication Critical patent/CA2669794C/fr
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • A61B17/80—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates
    • A61B17/8033—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates having indirect contact with screw heads, or having contact with screw heads maintained with the aid of additional components, e.g. nuts, wedges or head covers
    • A61B17/8042—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates having indirect contact with screw heads, or having contact with screw heads maintained with the aid of additional components, e.g. nuts, wedges or head covers the additional component being a cover over the screw head
    • 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
    • A61B17/84—Fasteners therefor or fasteners being internal fixation devices
    • A61B17/86—Pins or screws or threaded wires; nuts therefor
    • A61B17/8605—Heads, i.e. proximal ends projecting from bone
    • 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
    • A61B17/7032—Screws or hooks with U-shaped head or back through which longitudinal rods pass

Landscapes

  • Health & Medical Sciences (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Surgery (AREA)
  • Neurology (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)

Abstract

Vis à os (2; 14) dotée d'une tige de vis (4; 21)devant être ancrée de manière concentrique à un axe longitudinal (5; 24) de la vis dans un os ou une partie d'os, munie d'une tête de vis (3; 22), caractérisée par le fait que la vis à os 2; 14) a, entre la tête de vis (3; 22) et la tige de vis (4; 21), un collet en forme de disque (6; 23) qui est concentrique par rapport à l'axe longitudinal (5; 24) de la vis et dont le diamètre est supérieur à celui de l'arbre de vis (4; 21). Un dispositif pour la fixation pour os en os de synthèse possédant A) au moins une vis à os (2; 14); et B) au moins un corps de fixation (1, 15) en forme de plaque, de prisme ou cylindrique possédant au moins un trou (7; 17) doté d'un axe central (8; 16) pour recevoir la vis à os (2; 14), un côté inférieur (9; 19) vers la tige de vis, et un côté supérieur (11; 18) vers la tête de vis, C) le trou (7; 17) comprenant une partie (10; 26) conique vers le côté inférieur (9; 19), et D)6 le diamètre du collet (6; 23) dimensionné pour qu'il (6; 23) puisse, dans la partie concave (10; 26) du trou (7; 17),être fabriqué afin de s'appuyer sur la paroi (12; 27) du trou (7; 17) à des angles différents entre l'axe longitudinal (5; 24) de la vis et l'axe central (8; 16).
CA2669794A 1999-07-07 1999-07-07 Vis a os a ajustage angulaire et dispositif de fixation pour os en os de synthese Expired - Fee Related CA2669794C (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA2669794A CA2669794C (fr) 1999-07-07 1999-07-07 Vis a os a ajustage angulaire et dispositif de fixation pour os en os de synthese

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CA2669794A CA2669794C (fr) 1999-07-07 1999-07-07 Vis a os a ajustage angulaire et dispositif de fixation pour os en os de synthese
CA002375533A CA2375533C (fr) 1999-07-07 1999-07-07 Vis a os a ajustage angulaire et dispositif de fixation pour os en os de synthese

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CA002375533A Division CA2375533C (fr) 1999-07-07 1999-07-07 Vis a os a ajustage angulaire et dispositif de fixation pour os en os de synthese

Publications (2)

Publication Number Publication Date
CA2669794A1 CA2669794A1 (fr) 2001-01-18
CA2669794C true CA2669794C (fr) 2011-08-30

Family

ID=41011939

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2669794A Expired - Fee Related CA2669794C (fr) 1999-07-07 1999-07-07 Vis a os a ajustage angulaire et dispositif de fixation pour os en os de synthese

Country Status (1)

Country Link
CA (1) CA2669794C (fr)

Also Published As

Publication number Publication date
CA2669794A1 (fr) 2001-01-18

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed

Effective date: 20170707

MKLA Lapsed

Effective date: 20170707