Active implantable medical device, in particular pacemaker, defibrillator or cardioverter, which is controlled and protected against the effects of brady- and/or tachy-dependent extrasystoles

摘要

The implanted cardiac stimulator algorithm analyses the heart events to recognize resting (I), normal (II) and active (III) periods, detects excessive extra systolic events due to low or high heart rate (Fb) and resets (D) the stimulation rate (Fs) higher or lower depending on the period type for the rest of the period to ensure a good rhythm is maintained.