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:
Apr. 01, 2003
Filed:
Jan. 31, 2001
Jean-François Biegun, Chaumont, FR;
Pascal Marceaux, Chaumont, FR;
Aesculap, , FR;
Abstract
A femoral part of a knee prosthetic of the type known as comprising three compartments, including two condyles ( ) and a trochlea surface part ( ) wherein the femoral part is to be anchored to the distal extremity of a femur and the external surface of the condyles is to co-operate with the upper external surface of a tibia insert such that, in a longitudinal section, the trochlea support surface ( ) defines a trochlean trajectory following a first circular arc and, still in a longitudinal section, the external surface of the condyles ( ) includes at least partially an intermediary circular arc ( ), characterised in that in a longitudinal section, the external surface of the condyles ( ) comprises an intermediary surface ( ) and an extremity surface ( ) both of which are a circular arc, with the intermediary circular arc ( ) extending over an angle of 80° to 90°, the extremity circular arc ( ) extending over an angle of 40° to 50°, the value of the curvature radius of the extremity arc ( ) being strictly less than the value of the curvature radius of the intermediary arc ( ).