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Publication numberCA2498387 A1
Publication typeApplication
Application numberCA 2498387
PCT numberPCT/EP2004/000225
Publication date5 Aug 2004
Filing date14 Jan 2004
Priority date17 Jan 2003
Also published asCA2498387C, CN1738581A, CN100479788C, DE502004008404D1, EP1438932A1, EP1587459A1, EP1587459B1, US7914585, US20060004464, WO2004064689A1
Publication numberCA 2498387, CA 2498387 A1, CA 2498387A1, CA-A1-2498387, CA2498387 A1, CA2498387A1, PCT/2004/225, PCT/EP/2004/000225, PCT/EP/2004/00225, PCT/EP/4/000225, PCT/EP/4/00225, PCT/EP2004/000225, PCT/EP2004/00225, PCT/EP2004000225, PCT/EP200400225, PCT/EP4/000225, PCT/EP4/00225, PCT/EP4000225, PCT/EP400225
InventorsArnold Keller
ApplicantWaldemar Link Gmbh & Co. Kg, Arnold Keller
Export CitationBiBTeX, EndNote, RefMan
External Links: CIPO, Espacenet
Hip prosthesis comprising a shaft to be inserted into the femur
CA 2498387 A1
Abstract
The invention relates to a hip prosthesis comprising a straight shaft (1) to be inserted into the femur. The proximal part (6) of said shaft to be inserted into the metaphyseal region of the femur comprises at least one projecting fin (8) having a medially steep flank (23) on the front and rear sides. Said fin (8) deviates away from the longitudinal direction (27) of the shaft (1) and is upwardly inclined towards the femoral neck (2), at least over part of its length. In this way, when the shaft is driven into the bone, the bone substance surrounding the fin (8) thickens and is able to absorb higher forces. The height of the fin (8) decreases from the medial flank thereof (23) to the lateral edge (25) thereof.
Description  available in
Claims(5)
1. A hip prosthesis comprising a shaft (1) which is to be inserted into the femur and whose proximal part (6) to be inserted in the metaphyseal region of the femur comprises, on the front face and rear face, in each case one projecting fin (8) whose medial flank (23) deviates away from the longitudinal direction (27) of the shaft (1) and at the top is inclined toward the femoral neck (2), characterized in that the medial flank (23) is steep, and the height of the fin (8) decreases in the lateral direction from the edge delimiting the steep flank (23).
2. The prosthesis as claimed in claim 1, characterized in that the fin (8) extends rectilinearly at an angle (alpha) of 5 to 15 with respect to the longitudinal direction (27) of the shaft (1).
3. The prosthesis as claimed in claim 1 or 2, characterized in that the height of the fin (8) above the surface (21) of the main body (22) of the shaft increases from the bottom upward.
4. The prosthesis as claimed in one of claims 1 through 3, characterized in that the height of the lateral edge (27) of the fin (8) is not greater than half the height of the medial edge (23).
5. The prosthesis as claimed in one of claims 1 through 4, characterized in that it comprises diaphyseal anchoring means.
Legal Events
DateCodeEventDescription
23 Dec 2008EEERExamination request