CA2231716A1 - Centering device for femoral implant and apparatus for implementation thereof - Google Patents

Centering device for femoral implant and apparatus for implementation thereof

Info

Publication number
CA2231716A1
CA2231716A1 CA002231716A CA2231716A CA2231716A1 CA 2231716 A1 CA2231716 A1 CA 2231716A1 CA 002231716 A CA002231716 A CA 002231716A CA 2231716 A CA2231716 A CA 2231716A CA 2231716 A1 CA2231716 A1 CA 2231716A1
Authority
CA
Canada
Prior art keywords
projections
prosthesis
stem
slots
femoral hip
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.)
Granted
Application number
CA002231716A
Other languages
French (fr)
Other versions
CA2231716C (en
Inventor
Dennis W. Burke
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
Application filed by Individual filed Critical Individual
Publication of CA2231716A1 publication Critical patent/CA2231716A1/en
Application granted granted Critical
Publication of CA2231716C publication Critical patent/CA2231716C/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
    • A61B17/8802—Equipment for handling bone cement or other fluid fillers
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
    • A61B17/1604—Chisels; Rongeurs; Punches; Stamps
    • A—HUMAN NECESSITIES
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    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
    • A61B17/1659—Surgical rasps, files, planes, or scrapers
    • A—HUMAN NECESSITIES
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    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
    • A61B17/17—Guides or aligning means for drills, mills, pins or wires
    • A61B17/1739—Guides or aligning means for drills, mills, pins or wires specially adapted for particular parts of the body
    • A61B17/1742—Guides or aligning means for drills, mills, pins or wires specially adapted for particular parts of the body for the hip
    • A61B17/175—Guides or aligning means for drills, mills, pins or wires specially adapted for particular parts of the body for the hip for preparing the femur for hip prosthesis insertion
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    • A61F2/4607—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof of hip femoral endoprostheses
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    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
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    • A—HUMAN NECESSITIES
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    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/30767—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
    • A61F2/30771—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
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    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
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    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
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    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
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Abstract

A method and apparatus for centering the stem of a femoral hip prosthesis in the cavity formed in the medullary canal in the proximal end of the femur. The apparatus includes a sleeve or other like device which is mounted onto the neck of the femoral hip prosthesis and which contains at least two projections extending from a lower surface thereof which are adapted to seat in correspondingly formed slots disposed on the upper proximal surface of the femur bone. The slots are positioned such that when the projections reside therein, the stem is centered within the cavity. The slots and projections are elongated in a direction generally transverse to the direction of elongation of the stem, and in this direction of elongation each slot and associated projection is not parallel to the other slot and associated projection. The device of this invention may be used either with prosthesis having a collar, or with a collarless prosthesis.
The method of this invention includes the step of mounting a sleeve or other like device on the neck of a femoral hip prosthesis and inserting projections on the device into previously formed slots disposed on the upper proximal surface of the femur bone.
CA002231716A 1997-03-12 1998-03-11 Centering device for femoral implant and apparatus for implementation thereof Expired - Lifetime CA2231716C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/816,191 1997-03-12
US08/816,191 US5951606A (en) 1992-11-20 1997-03-12 Centering device for femoral implant and method and apparatus for implementation thereof

Publications (2)

Publication Number Publication Date
CA2231716A1 true CA2231716A1 (en) 1998-09-12
CA2231716C CA2231716C (en) 2006-09-12

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CA002231716A Expired - Lifetime CA2231716C (en) 1997-03-12 1998-03-11 Centering device for femoral implant and apparatus for implementation thereof

Country Status (5)

Country Link
US (2) US5951606A (en)
EP (1) EP0865776B1 (en)
JP (1) JP4012618B2 (en)
CA (1) CA2231716C (en)
DE (1) DE69814714T2 (en)

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US6482209B1 (en) * 2001-06-14 2002-11-19 Gerard A. Engh Apparatus and method for sculpting the surface of a joint
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CA2231716C (en) 2006-09-12
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US5951606A (en) 1999-09-14
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US6179877B1 (en) 2001-01-30
EP0865776A2 (en) 1998-09-23
DE69814714D1 (en) 2003-06-26
JP4012618B2 (en) 2007-11-21
JPH10272148A (en) 1998-10-13

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