Method and system for detecting relay failure

摘要: In an external cardiac defibrillator (8), a method and system for determining when relay (22) has failed in conductive state. The (8) includes charge circuit (14) that charges energy storage capacitor (C) to predetermined voltage. is closed direct defibrillation pulse from the patient (25) needing ventricular therapy. then opened following application of pulse. A monitor (18) monitors voltage on capacitor. If measured across less than or equal threshold value after delay, failed. exceeds value, operating correctly.