Cardiac pacemaker utilizing prolonged A-V interval and ventricular autocapture

摘要: A dual chamber cardiac pacemaker has a pulse controller for delivering stimulation pulses to the ventricle of heart, ventricular sensor sensing depolarization, and unit identifying beginning an A-V interval heart. The causes be generated at predetermined energy level after expiration interval. prolongs under certain circumstances. Upon prolonged interval, generator emit higher than evoke response in ventricle. This allows intrinsic heart activity detected utilized, while ensuring safe pacing, as well successful reliable maintaining low power consumption during normal operation.