Patent ID: 6466820
Filing Date: 2002-10-15
Classification: A61N

Abstract:
In a cardiac pacemaker, a method of delivering triggered pacing pulses to a ventricle of a heart comprising the steps of:locating first and second pace/sense electrodes at first and second spaced apart ventricular sites of said ventricle of the heart; sensing spontaneous cardiac depolarizations traversing one of the other of the first and second pace/sense electrodes and providing a ventricular sense event signal; upon provision of the ventricular sense event signal, starting and timing out a ventricular escape interval and a trigger pace window that is shorter than the ventricular escape interval; in a triggered pacing mode, upon provision of a ventricular sense event during the timing out of the ventricular escape interval following the time-out of the trigger pace window, generating and delivering a ventricular pacing pulse or pacing pulses to a selected one or both of the first and second spaced apart sites of the ventricle through a respective one or both of said first and second pace/sense electrodes; and disabling the triggered pace mode upon provision of the ventricular sense event during the timing out of the ventricular escape interval and the trigger pace window.