Patent ID: 8080064
Filing Date: 2011-12-20
Classification: A61B,A61F

Abstract:
1. A tibial tray assembly comprising: a platform having an upper surface configured to receive a tibial insert; a stem extending downwardly from a bottom surface of the platform, the stem having a distal end and an internal cavity; a spacer having an internal passageway, a proximal end and a distal end, the proximal end of the spacer being secured to the distal end of the stem; a stem extension having a metallic body secured to the distal end of the spacer such that (i) the spacer is positioned between the stem and the stem extension, and (ii) the stem extension is physically and electrically insulated from the stem by the spacer; a wireless communication device positioned in the internal cavity of the stem, wherein the wireless communication device is electrically coupled to the metallic body of the stem extension and configured to transmit data using the metallic body of the stem extension as an antenna; and an antenna wire electrically coupling the wireless communication device to the metallic body of the stem extension, the antenna wire extending through the internal passageway of the spacer.