Knee prosthesis

Details Knee prosthesis Knee prosthesis

1989-10-17

1992-05-26

Isabella, David

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

Implantable prosthesis

Bone

A61F 238

Patent

active

051163764

ABSTRACT:
A knee prosthesis is provided which forces the femur and tibia apart on twisting of the knee so that weight applied through the knee has an untwisting action. A tibial member and an intermediate member are journalled together by peg which fits into socket. Opposite handed helical surfaces cam the members apart when the knee is twisted. A knee hinge is defined by the intermediate member and a female member.

REFERENCES:
patent: 4216549 (1980-08-01), Hillberry et al.
patent: 4224697 (1980-09-01), Murray et al.

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