ZA964859B - Apparatus for preventing screw backout in a bone plate fixation system - Google Patents

Apparatus for preventing screw backout in a bone plate fixation system

Info

Publication number
ZA964859B
ZA964859B ZA964859A ZA964859A ZA964859B ZA 964859 B ZA964859 B ZA 964859B ZA 964859 A ZA964859 A ZA 964859A ZA 964859 A ZA964859 A ZA 964859A ZA 964859 B ZA964859 B ZA 964859B
Authority
ZA
South Africa
Prior art keywords
bone plate
fixation system
plate fixation
preventing screw
screw backout
Prior art date
Application number
ZA964859A
Other languages
English (en)
Inventor
Bradley T Estes
Original Assignee
Danek Medical 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 Danek Medical Inc filed Critical Danek Medical Inc
Publication of ZA964859B publication Critical patent/ZA964859B/xx

Links

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
    • A61B17/8047—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 wherein the additional element surrounds the screw head in the plate hole
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B2017/00831—Material properties
    • A61B2017/00867—Material properties shape memory effect
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S411/00—Expanded, threaded, driven, headed, tool-deformed, or locked-threaded fastener
    • Y10S411/909—Fastener or fastener element composed of thermo-responsive memory material

Landscapes

  • Health & Medical Sciences (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Neurology (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)
ZA964859A 1995-06-07 1996-06-07 Apparatus for preventing screw backout in a bone plate fixation system ZA964859B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/477,296 US5578034A (en) 1995-06-07 1995-06-07 Apparatus for preventing screw backout in a bone plate fixation system

Publications (1)

Publication Number Publication Date
ZA964859B true ZA964859B (en) 1997-01-07

Family

ID=23895335

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA964859A ZA964859B (en) 1995-06-07 1996-06-07 Apparatus for preventing screw backout in a bone plate fixation system

Country Status (6)

Country Link
US (1) US5578034A (cg-RX-API-DMAC7.html)
EP (2) EP0876128B1 (cg-RX-API-DMAC7.html)
AU (1) AU5935096A (cg-RX-API-DMAC7.html)
DE (2) DE69627890T2 (cg-RX-API-DMAC7.html)
WO (1) WO1996039975A1 (cg-RX-API-DMAC7.html)
ZA (1) ZA964859B (cg-RX-API-DMAC7.html)

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EP0876128B1 (en) 2003-05-02
WO1996039975A1 (en) 1996-12-19
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DE69627890D1 (de) 2003-06-05
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US5578034A (en) 1996-11-26
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