Prosthesis (i.e. – artificial body members) – parts thereof – or ai – Implantable prosthesis – Bone
Patent
1989-05-31
1992-03-03
Isabella, David J.
Prosthesis (i.e., artificial body members), parts thereof, or ai
Implantable prosthesis
Bone
A61F 234
Patent
active
050928988
ABSTRACT:
An artificial femoral head having outer casing and generally spherical head inserted therein with a plurality of bearings inserted therebetween, permitting rotation with a coefficient of friction substantially equal to that of human cartilage. An artificial hip joint having a cup-shaped socket, capable of either being threaded or cemented into a bone cavity, having a generally spherical head inserted therein, having a plurality of bearings therebetween permitting rotation. Another embodiment of the hip joint includes a slide bearing inserted therebetween in addition to the plurality of bearings, permitting rotation in a range up to 120.degree..
REFERENCES:
patent: 4842605 (1989-06-01), Sonnerat et al.
Bekki Katsutoshi
Shinjo Kiyoshi
Isabella David J.
NGK Spark Plug Co. Ltd.
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