CPC A61F 2/3836 (2013.01) [A61F 2/389 (2013.01); A61F 2/3859 (2013.01); A61F 2/3886 (2013.01); A61F 2002/30523 (2013.01); A61F 2002/30621 (2013.01)] | 10 Claims |
1. A knee joint prosthesis configured to move between an extended position and a flexion position, the knee joint prosthesis comprising:
a femoral component configured to be mounted to a femur;
a tibial component configured to be mounted to a tibia, the tibial component configured to engage the femoral component to form the knee joint prosthesis;
a first post fixedly connected to one of the femoral component and the tibial component and having a helical surface at a free end thereof, a first recess defined on the other of the femoral component and the tibial component and having a mating helical surface, wherein the helical surfaces of the first post and first recess are configured to engage in order to cause relative rotation between the femoral and tibial components as the knee joint prosthesis moves between the extended and flexion positions a second post fixedly connected to one of the femoral component and the tibial component, and a second cam recess defined on the other of the femoral component and the tibial component that is configured to be engaged by the second post.
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