Acetabular prosthesis with apertures sealed with deformable disc

Details Acetabular prosthesis with apertures sealed with deformable disc Acetabular prosthesis with apertures sealed with deformable disc

1994-07-25

1996-08-27

Isabella, David

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

Implantable prosthesis

Bone

623 18, A61F 234

Patent

active

055496946

ABSTRACT:
An acetabular cup for use with a plastic socket bearing is provided. The cup includes a circular aperture having a stepped configuration. A domed disc is inserted in the aperture and deformed to seal the aperture. In this way, plastic particles, which are generated by wear of the bearing during use, are prevented from migrating through the aperture to the bone surrounding and supporting the prosthesis.

REFERENCES:
patent: 4001928 (1977-01-01), Schweiso
patent: 4883491 (1989-11-01), Mallory et al.
patent: 4944759 (1990-07-01), Mallory et al.

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