A sensor has a connector adapted to electrically communicate with a physiological measurement instrument. A breakable conductor incorporated by the sensor transitions from a continuity state to a discontinuity state as the result of sensor wear. An isolation and communications element (ICE) has an instrument...http://www.google.de/patents/US20060020180?utm_source=gb-gplus-sharePatent US20060020180 - Isolation and communication element for a resposable pulse oximetry sensor
