Acetabular prosthesis

Details Acetabular prosthesis Acetabular prosthesis

1997-12-29

2000-12-19

Wilson, John J.

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

Implantable prosthesis

Bone

623 2228, A61F 232

Patent

active

061622567

ABSTRACT:
An acetabular prosthesis has a shell component that is implantable within bone and a liner component that is matable to the shell. The shell has a generally convex bone engaging outer surface and a generally concave inner surface. A groove is formed in the inner surface of the shell and extends about at least a portion of the inner circumference of the shell. The liner has an inner concave surface and an outer, convex surface with a shape complementary to and matable within the inner surface of the shell. One or more deformable positive surface features is formed on the outer surface of the liner, adapted for selective mating with the slot of the shell. The liner may be joined to the shell by press fitting the two components together such that the positive surface features engage the groove.

REFERENCES:
patent: 4770661 (1988-09-01), Oh
patent: 4840630 (1989-06-01), Kitamura
patent: 4936855 (1990-06-01), Sherman
patent: 5080677 (1992-01-01), Shelley
patent: 5108447 (1992-04-01), Zeiler et al.
patent: 5507826 (1996-04-01), Besselink et al.
patent: 5658338 (1997-08-01), Tyllos et al.
patent: 5766260 (1998-06-01), Whiteside

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