Methods, circuits and devices useful for maximizing the likelihood of successful defibrillation or cardioversion using an automatic implantable cardioverter/defibrillator ("AICD") system are provided which are capable of monitoring the impedance of AICDs for purposes of detecting lead malfunctions. After...http://www.google.co.uk/patents/US5607455?utm_source=gb-gplus-sharePatent US5607455 - Method and apparatus for automatic shock electrode enabling
