Locking mechanism for prosthesis components

Details Locking mechanism for prosthesis components Locking mechanism for prosthesis components

1986-02-14

1987-03-17

Apley, Richard J.

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

Implantable prosthesis

Bone

623 18, 403140, A61F 234, F16C 1106

Patent

active

046504915

ABSTRACT:
A socket insert component of an acetabular cup prosthesis is held securely within its support shell by a locking mechanism comprising a circumferential groove in the shell concavity perpendicular to the longitudinal axis of the concavity, a first circumferential rib on the outer surface of the insert congruent with the groove, and a second circumferential rib on the outer surface of the insert parallel to and proximate the first rib, the first rib snapping into the groove and the second rib being deformed and pressed against the concavity when the insert and shell are assembled.

REFERENCES:
patent: 3241226 (1966-03-01), Jorgji
patent: 3863273 (1975-02-01), Averill
patent: 4051559 (1977-10-01), Pifferi
patent: 4172296 (1979-10-01), D'Errico
patent: 4231120 (1980-11-01), Day
patent: 4408360 (1983-10-01), Keller
patent: 4564307 (1986-01-01), Ito
patent: 4577989 (1986-03-01), Ito
patent: 4596586 (1986-06-01), Weil

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