WO2005092223A3 - Closure member for a medical implant device - Google Patents

Closure member for a medical implant device Download PDF

Info

Publication number
WO2005092223A3
WO2005092223A3 PCT/US2005/009616 US2005009616W WO2005092223A3 WO 2005092223 A3 WO2005092223 A3 WO 2005092223A3 US 2005009616 W US2005009616 W US 2005009616W WO 2005092223 A3 WO2005092223 A3 WO 2005092223A3
Authority
WO
WIPO (PCT)
Prior art keywords
closure member
receiving member
walls
receiving
noncontiguous
Prior art date
Application number
PCT/US2005/009616
Other languages
French (fr)
Other versions
WO2005092223A2 (en
Inventor
Dennis Colleran
James Spitler
Original Assignee
Innovative Spinal Technologies
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 Innovative Spinal Technologies filed Critical Innovative Spinal Technologies
Publication of WO2005092223A2 publication Critical patent/WO2005092223A2/en
Publication of WO2005092223A3 publication Critical patent/WO2005092223A3/en

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
    • 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
    • A61B17/7032—Screws or hooks with U-shaped head or back through which longitudinal rods pass
    • 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
    • A61B17/7002—Longitudinal elements, e.g. rods
    • A61B17/7004—Longitudinal elements, e.g. rods with a cross-section which varies along its length
    • A61B17/7005—Parts of the longitudinal elements, e.g. their ends, being specially adapted to fit in the screw or hook heads

Abstract

A closure member, such as a set screw, and complementary receiving member are included in a medical implant device. The receiving member has a plurality of noncontiguous, threaded walls substantially defining a bore for receiving the threaded closure member. When the closure member is inserted into the receiving member, their respective threads interlock to join the noncontiguous walls of the receiving member. The closure member has an outer thread configured to interlock with the inner walls of the receiving member in a manner that aids in preventing the noncontiguous walls of the receiving member from moving away from the closure member. In certain embodiments, the closure member's outer thread includes a trailing edge having a point that is rearward of the trailing edge's root, and the outer thread includes a leading edge having a point that is forward of the leading edge's root.
PCT/US2005/009616 2004-03-22 2005-03-22 Closure member for a medical implant device WO2005092223A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/805,967 US7214227B2 (en) 2004-03-22 2004-03-22 Closure member for a medical implant device
US10/805,967 2004-03-22

Publications (2)

Publication Number Publication Date
WO2005092223A2 WO2005092223A2 (en) 2005-10-06
WO2005092223A3 true WO2005092223A3 (en) 2005-11-24

Family

ID=34966710

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2005/009616 WO2005092223A2 (en) 2004-03-22 2005-03-22 Closure member for a medical implant device

Country Status (3)

Country Link
US (1) US7214227B2 (en)
TW (1) TWI262780B (en)
WO (1) WO2005092223A2 (en)

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US8096996B2 (en) 2007-03-20 2012-01-17 Exactech, Inc. Rod reducer
US8267969B2 (en) 2004-10-20 2012-09-18 Exactech, Inc. Screw systems and methods for use in stabilization of bone structures
US8523865B2 (en) 2005-07-22 2013-09-03 Exactech, Inc. Tissue splitter

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US20050216000A1 (en) 2005-09-29
WO2005092223A2 (en) 2005-10-06

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