A telemetric tibial tray includes a lower plate that defines a plurality of cylindrical transducer cavities having circular load diaphragms. An upper plate is attached to the lower plate through support posts projecting from the load diaphragms. The support posts have a circular cross-section and a diameter...http://www.google.de/patents/US20050010302?utm_source=gb-gplus-sharePatent US20050010302 - Telemetric tibial tray
