Patent ID: 9492280
Filing Date: 2016-11-15
CPC Classification: A61F

Claim Text:
1. A total knee replacement system, comprising: a tibial component having a tibial post with a posterior surface; a femoral component having medial and lateral condylar protrusions which form separated bearing surfaces configured to articulate with the tibial component, the femoral component further including an intercondylar femoral cam mechanism configured to articulate with the posterior surface of the tibial post; wherein a majority of the posterior surface of the tibial post is concave in a sagittal plane, defined as a vertical plane extending from front to back; wherein the cam mechanism of the femoral component has a superior convex portion, a concave central portion, and an inferior convex posterior portion; wherein the inferior convex posterior portion contacts the posterior surface of the tibial post at or before 90 degrees of flexion; wherein at least a portion of the posterior surface of the tibial post is convex in a transverse (horizontal) plane; and wherein at least a portion of the cam mechanism of the femoral component is concave in the transverse (horizontal) plane.