Hip joint prosthesis

Details Hip joint prosthesis Hip joint prosthesis

1980-06-25

1982-02-09

Frinks, Ronald L.

Surgery

Truss

Pad

3 191, 128 92C, 128 92CA, A61F 124

Patent

active

043143814

ABSTRACT:
An improved hip joint prosthesis is provided by the present invention in which the stem portion of the femoral head prosthesis includes at least one layer of elastomeric material disposed between and attaching to at least two sections of rigid material to reduce necrosis and resorption of the adjacent bone. The stem portion may also be formed of a solid section of essentially rigid material having a plurality of circumferential elastomeric rings disposed at selected intervals along the length thereof, with at least three sections of rigid material attaching at spaced intervals to each elastomeric ring and extending outwardly to contact the bone within the medullary canal. Joint means may be provided between either of the stem portions herein and the head of the femoral head prosthesis, to provide a complete range of natural hip movement thus eliminating the need for a separate acetabulum prosthesis.

REFERENCES:
patent: 2719522 (1955-10-01), Hudack
patent: 3605123 (1971-09-01), Hahn
patent: 3707006 (1972-12-01), Bokros et al.
patent: 3938198 (1976-02-01), Kahn et al.

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