Defibrillation system including an atrial defibrillator and ventricular defibrillation backup

摘要

An implantable defibrillation system (30) includes a lead system (33) for making electrical contact with a heart, an atrial cardioverter (50) coupled to the lead system, and a ventricular cardioverter (60) coupled to the lead system. The ventricular cardioverter includes a ventricular arrhythmia detector (62) responsive to a control signal for detecting for a ventricular arrhythmia of the heart. The ventricular cardioverter cardioverts the ventricles of the heart in response to the ventricular arrhythmia detector detecting a ventricular arrhythmia. A ventricular arrhythmia detector enable (58) provides the control signal in response to each application of cardioverting electrical energy to the atria by the atrial cardioverter. <IMAGE>