Endoprosthetic bone joint devices

Details Endoprosthetic bone joint devices Endoprosthetic bone joint devices

1984-04-19

1986-11-18

Apley, Richard J.

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

Implantable prosthesis

Bone

A61F 232

Patent

active

046233512

ABSTRACT:
An endoprosthetic acetabular component of overall cup form has three parts: an outer part (10) for securement in bone, an inner part (20) defining a dished articulation surface (23) and adjustably engageable with the outer part to allow independent variation of such surface in both inclination and rotation, and a third part (30) to secure the inner and outer parts with a preselected adjustment of the former. The inner/outer part engagement is preferably of spherical bearing form. Also, the inner part is preferably of two sub-parts (21, 24) respectively providing the articulation surface and the outer part engagement, the former sub-part being selectable from a range interchangeably connectable with the latter sub-part but having respectively different heights of articulation surface.

REFERENCES:
patent: 3723995 (1973-04-01), Baumann
patent: 4040130 (1977-08-01), Laure
patent: 4173797 (1979-11-01), Langlais et al.
patent: 4206517 (1980-06-01), Pappas et al.
patent: 4273461 (1981-06-01), Kjellstrand et al.
patent: 4380090 (1983-04-01), Ramos

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