Head adaptor for hip prosthesis

Details Head adaptor for hip prosthesis Head adaptor for hip prosthesis

1991-09-06

1992-10-20

Isabella, David

Prosthesis (i.e., artificial body members), parts thereof, or ai

Implantable prosthesis

Bone

623 18, A61F 232

Patent

active

051566249

ABSTRACT:
A set of hip prosthesis components including a plurality of head components and an adaptor component for use in assembling together one of the head components and a femoral stem component. The first head component is an endo head component having a first bore of a first shape or length. The second head component includes a second bore that is of a second shape or length different from the first shape or length. The adaptor includes an axially extending protruding portion wherein the first shape or length of the first bore is sufficient for the bore to accept and frictionally retain therein the protruding portion. The second shape or length of the second bore is insufficient or inappropriate for the second bore to frictionally retain therein the protruding portion.

REFERENCES:
patent: 4015257 (1977-05-01), Crowninshield et al.
patent: 4676797 (1987-06-01), Anapliotis et al.
patent: 4750905 (1988-06-01), Koeneman et al.
patent: 4921500 (1990-05-01), Averill et al.
patent: 4957510 (1990-09-01), Cremascoli
patent: 4963155 (1990-10-01), Lazzeri et al.
patent: 4995883 (1991-02-01), Demane et al.
patent: 5002581 (1991-03-01), Paxson et al.
Orthopaedic Device Corporation brochure--"A New Generation Proportional Hemi-Prosthesis"--No date available.
Richards catalog p. 51--"Trunnion Sleeve"--1987.
Zimmer, Inc. brochure--"The Total System"--Lit. No. 85-037-9026-0326--1984.
Allo Pro brochure--"Rotation-type Hip Joint Prosthesis, Weber System"--1984.

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