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:
Jun. 19, 2018

Filed:

May. 25, 2017
Applicant:

Aesculap Ag, Tuttlingen, DE;

Inventors:

Berna Richter, Hannover, DE;

Christof Hurschler, Hannover, DE;

Sven Ostermeier, Hannover, DE;

Assignee:

Aesculap AG, Tuttlingen, DE;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61F 2/38 (2006.01); B24B 31/00 (2006.01); A61F 2/30 (2006.01); A61F 2/46 (2006.01);
U.S. Cl.
CPC ...
A61F 2/3886 (2013.01); A61F 2/3868 (2013.01); B24B 31/003 (2013.01); A61F 2/3094 (2013.01); A61F 2/468 (2013.01); A61F 2002/30365 (2013.01); A61F 2002/30369 (2013.01); A61F 2002/30528 (2013.01); A61F 2002/30934 (2013.01); A61F 2002/3895 (2013.01); A61F 2220/0025 (2013.01); A61F 2220/0033 (2013.01); A61F 2310/00203 (2013.01); A61F 2310/00239 (2013.01); Y10T 29/49826 (2015.01);
Abstract

The present invention provides a uni-compartmental knee joint prosthesis () which includes a tibial component () and a femoral component (). The tibial component () has a fixation portion () adapted to be fixed to an upper end of a prepared tibia (T) in a patient, and a bearing portion () presenting an articulation surface () formed from a ceramic material, wherein the bearing portion () is adapted for movement relative to the fixation portion (). The femoral component () is adapted to be fixed to a lower end of a prepared femur (F) in a patient, and comprises a body portion () presenting an articulation surface () formed from a ceramic material for engagement with the articulation surface () of the tibial component (). The articulation surfaces () of the tibial and femoral components are adapted for essentially congruent engagement over a full range of movement of the prosthesis.


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