WO2003086242B1 - Femoral neck fixation prosthesis - Google Patents

Femoral neck fixation prosthesis

Info

Publication number
WO2003086242B1
WO2003086242B1 PCT/US2003/010798 US0310798W WO03086242B1 WO 2003086242 B1 WO2003086242 B1 WO 2003086242B1 US 0310798 W US0310798 W US 0310798W WO 03086242 B1 WO03086242 B1 WO 03086242B1
Authority
WO
WIPO (PCT)
Prior art keywords
body member
femoral neck
femur
implant
distal end
Prior art date
Application number
PCT/US2003/010798
Other languages
French (fr)
Other versions
WO2003086242A1 (en
Inventor
Theodore Crofford
Original Assignee
Theodore Crofford
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 Theodore Crofford filed Critical Theodore Crofford
Priority to AU2003224886A priority Critical patent/AU2003224886B2/en
Priority to DE60332338T priority patent/DE60332338D1/en
Priority to AT03721579T priority patent/ATE465695T1/en
Priority to EP03721579A priority patent/EP1499268B1/en
Priority to CA002522033A priority patent/CA2522033A1/en
Publication of WO2003086242A1 publication Critical patent/WO2003086242A1/en
Publication of WO2003086242B1 publication Critical patent/WO2003086242B1/en

Links

Classifications

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    • 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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    • A61F2/36—Femoral heads ; Femoral endoprostheses
    • A61F2/3601—Femoral heads ; Femoral endoprostheses for replacing only the epiphyseal or metaphyseal parts of the femur, e.g. endoprosthetic femoral heads or necks directly fixed to the natural femur by internal fixation devices
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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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Abstract

A femoral neck fixation prosthesis and method of using same which reduces bone loss and the avoids the other shortcomings of the prior art by allowing the fixation of a stable femoral head replacement while reducing the amount of the femur which must be reamed for the insertion of the prosthesis. The preferred embodiment provides that the femoral head (110) is attached to a fixation prosthesis (110, 125, 130, 140) which extends coaxially through the canal of the femoral neck, into the femur, and is then attached to the opposite lateral wall of the femur. In this manner, the prosthesis serves to imitate the original structure of the femoral neck. No other support members, either crosspins or arms extending into the length of the femur, are required.

Claims

AMENDED CLAIMS[received by the International Bureau on 29 September 2003 (29.09.03); Original claim 1 replaced by amended claim 1; remaining claims unchanged (1 page)]
1. An implant for replacing the proximal portion bf a femur having a substantially intact natural femoral neck and a lateral side opposite the femoral neck, the implant comprising: a solid body member having a longitudinal axis, a distal end, and a proximal end, being configured for positioning, in use, in the natural femoral neck, the length of the solid body member along the longitudinal axis being greater than its width perpendicular to the longitudinal axis; a head member having a distal end and a proximal substantially-spherical portion configured for positioning in a natural or prosthetic hip socket; a joining member positioned between the distal end of the head member and the proximal end of the body member; and a fastener spaced distally from the joining member and insertable, in use, between the distal end of the body member and the exterior of the lateral side of the femur, substantially in line with the longitudinal axis of the solid body member; and wherein no other fasteners pass within or through the femur.
2. The implant of claim 1 , wherein the solid body member has a length for positioning, in use, in the natural femoral neck without passage of the distal end through the lateral side of the femur. ,
3. The implant of claim 1 , wherein the body member comprises a collar positioned at the proximal end of the body member and configured for abutting contact, in use, with a proximal surface of the reheated femoral neck.
4.' The implant of claim 1 wherein the body member, the head member, and the joining member are integrally attached.
PCT/US2003/010798 2002-04-11 2003-04-07 Femoral neck fixation prosthesis WO2003086242A1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
AU2003224886A AU2003224886B2 (en) 2002-04-11 2003-04-07 Femoral neck fixation prosthesis
DE60332338T DE60332338D1 (en) 2002-04-11 2003-04-07 PROSTHESIS FOR FIXING THE THOROUGH HEADLEIN
AT03721579T ATE465695T1 (en) 2002-04-11 2003-04-07 PROSTHESIS FOR FIXING THE FEBRICAL NECK
EP03721579A EP1499268B1 (en) 2002-04-11 2003-04-07 Femoral neck fixation prosthesis
CA002522033A CA2522033A1 (en) 2002-04-11 2003-04-07 Femoral neck fixation prosthesis

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US37183702P 2002-04-11 2002-04-11
US60/371,837 2002-04-11
US10/228,907 2002-08-27
US10/228,907 US6695883B2 (en) 2002-04-11 2002-08-27 Femoral neck fixation prosthesis

Publications (2)

Publication Number Publication Date
WO2003086242A1 WO2003086242A1 (en) 2003-10-23
WO2003086242B1 true WO2003086242B1 (en) 2004-04-15

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PCT/US2003/010798 WO2003086242A1 (en) 2002-04-11 2003-04-07 Femoral neck fixation prosthesis
PCT/US2005/028300 WO2006020655A1 (en) 2002-04-11 2005-08-09 Method of implanting a femoral neck fixation prosthesis

Family Applications After (1)

Application Number Title Priority Date Filing Date
PCT/US2005/028300 WO2006020655A1 (en) 2002-04-11 2005-08-09 Method of implanting a femoral neck fixation prosthesis

Country Status (7)

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US (8) US6695883B2 (en)
EP (1) EP1499268B1 (en)
AT (1) ATE465695T1 (en)
AU (1) AU2003224886B2 (en)
CA (1) CA2522033A1 (en)
DE (1) DE60332338D1 (en)
WO (2) WO2003086242A1 (en)

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