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.

Date of Patent:
Aug. 20, 2019

Filed:

Sep. 08, 2016
Applicant:

Btg International Limited, London, GB;

Inventors:

John J. O'Connor, Headington, GB;

John W. Goodfellow, Oxford, GB;

David Murray, Cuddesdon, GB;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61F 2/38 (2006.01); A61F 2/30 (2006.01);
U.S. Cl.
CPC ...
A61F 2/3868 (2013.01); A61F 2/389 (2013.01); A61F 2002/30324 (2013.01); A61F 2002/30326 (2013.01); A61F 2002/30629 (2013.01); A61F 2002/30935 (2013.01);
Abstract

A tibial knee joint prosthesis for attachment to a suitably prepared tibial bone, providing bearing portions in the lateral and medial compartments. The lateral and medial bearing surfaces of the component are inclined at different angles in the anterior to posterior direction of the knee, so that when mounted to the tibia, the lateral bearing surface of the prosthesis is higher than the medial bearing surface to the posterior side of the knee. In this way the lateral ligament is tightened progressively more than the medial ligament as the knee moves from extension to flexion, resulting in increased stability in the lateral compartment.


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