An implantable body transducer having a self-contained calibration means. An exemplary embodiment comprises an implantable body pressure measuring transducer utilizing an L-C oscillator having a resonant circuit comprising a fixed L and a variable C, the variable C having a fixed capacitive electrode...http://www.google.es/patents/US4237900?utm_source=gb-gplus-sharePatente US4237900 - Implantable calibration means and calibration method for an implantable body transducer
Implantable calibration means and calibration method for an implantable body ...