Knee-joint endoprosthesis

Details Knee-joint endoprosthesis Knee-joint endoprosthesis

1993-08-20

1995-06-27

Isabella, David

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

Implantable prosthesis

Bone

A61F 238

Patent

active

054275865

ABSTRACT:
A knee-joint endoprosthesis includes a femoral part having, at the lower end, two condylar pans, and a tibial part having a tibial plateau with upper support areas for supporting, and also for guiding the condylar pans with movements of the knee joint. The condylar pans each have a downwardly-running lateral wall, which, at its convexly-curved lower end passes over into a support surface running transversely outwardly. The condylar pans each have, ventrally at the transition from the lateral wall to the support wall, a recess directed toward inside of the pan, across which an intervening space between the condylar pans is widened such that, with stronger bending, the knee cap can enter into this widened zone of entry of the intervening space.

REFERENCES:
patent: 3748662 (1973-07-01), Helfet
patent: 3837009 (1974-09-01), Walker
patent: 3868730 (1975-03-01), Kaufer et al.
patent: 4094017 (1978-06-01), Matthews et al.
patent: 4136405 (1979-01-01), Pastrick et al.

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