Patent ID: 8083802
Filing Date: 2011-12-27
Classification: A61F,B29C,B29L

Abstract:
1. A knee joint prosthesis, comprising: a distal femoral implant component for cooperation with a femur, the distal femoral implant component including a cam; a metal tibial tray implant component for cooperation with a tibia; and a tibial bearing component positionable between said distal femoral implant component and said tibial tray implant component and cooperable therewith, said bearing component including a contact surface for contacting the distal femoral implant component, a bottom bearing surface opposite the contact surface for contacting the tibial tray implant component, a spine for cooperation with the cam of the femoral component, a shaft extending out from the bottom bearing surface, an elongate one-piece reinforcing rod having a first end in the spine and a second end in the shaft and a polymeric material defining the spine, the shaft, the contact surface and the bottom bearing surface and completely encapsulating the reinforcing rod and molded thereto, so that the bearing component may be sterilized by a predominately surface sterilizing technology; said reinforcing rod having a first portion at the first end and a second portion at the second end, the first portion having a first longitudinal centerline and the second portion having a second longitudinal centerline, said reinforcing rod including a plurality of through holes extending transversely to the centerline of at least one of the first portion and the second portion, at least two of the through holes being oriented in a non-parallel relationship.