The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 27, 1996
Filed:
Nov. 05, 1993
Hirokazu Amino, Kyoto, JP;
Ian C Clarke, Santa Monica, CA (US);
Kyocera Corporation, Kyoto, JP;
Abstract
An artificial knee joint comprising a femur member to be secured to the distal portion of a femur and a tibia member to be secured to the proximal portion of a tibia, wherein the femur member is made of alumina ceramics or zirconia ceramics, and the tibia member is a combination of a sliding section made of high-density polyethylene and a seat section made of titanium, titanium alloy, cobalt-chromium alloy or stainless steel. With this joint, the service life of the tibia member can be extended significantly. This disclosure also includes a modified embodiment of the above-mentioned artificial knee joint that includes reinforcing ribs with a special cross sectional shape to increase resistance against bending force applied to the femur member.