Prosthetic patello femoral joint assembly

Details Prosthetic patello femoral joint assembly Prosthetic patello femoral joint assembly

1995-03-22

1997-03-11

Willse, David H.

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

Implantable prosthesis

Bone

623 18, A61F 238

Patent

active

056096445

ABSTRACT:
A prosthetic patello femoral joint assembly comprises a patella mounting component on which is located a movable mobile bearing component. A first side of the bearing component is shaped to engage the patella groove of a natural or an artificial femur. A second side of the mounting component has a substantially spherical convex bearing surface which engages and can articulate against a substantially spherical posterior concave bearing surface on the mounting component. A control means acts between the components to restrict substantially vertical movement of the bearing component about a medio lateral axis of the knee with which it is to be used, but allows substantially horizontal movement and relative rotation between said mounting component and said bearing component.

REFERENCES:
patent: 4007495 (1977-02-01), Frazier
patent: 4041550 (1977-08-01), Frazier
patent: 4085466 (1978-04-01), Goodfellow
patent: 4151615 (1979-05-01), Hall
patent: 4309778 (1982-01-01), Buechel
patent: 5246460 (1993-09-01), Goodfellow
patent: 5314480 (1994-05-01), Elloy et al.

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