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:
Oct. 13, 2015
Filed:
Mar. 15, 2013
Aesculap Ag, Tuttlingen, DE;
Dominique Mouillet, Semoutiers-Montsaon, FR;
Saïd Moussa, Chamarandes-Choignes, FR;
Uwe Idler, Liptingen, DE;
AESCULAP AG, Tuttlingen, DE;
Abstract
A knee joint endoprosthesis is provided which consists of a femur component and a tibia component having cooperating joint surfaces in contact with one another. A rotation guide arrangement is provided for forcing the femur component and the tibia component to rotate relative to each other about a medial center of rotation as a result of a flexure of the knee joint endoprosthesis. The rotation guide arrangement having a first guide element with a first guidance surface and a second guide element with a second guidance surface which cooperates with the first guidance surface. A projection of the tibia component comprises the first guide element and a transverse extension connecting condyles of the femur component comprises the second guide element. The first guidance surface defines a first radius of curvature and the second guidance surface defines a second radius of curvature. The first and second radii of curvature are identical.