Patent ID: 7065406
Filing Date: 2006-06-20
Classification: A61N

Abstract:
1. A dual chamber cardiac pacemaker comprising: a unit that identifies a beginning of an A-V interval of a heart; a ventricular sensor adapted to interact with the heart to sense ventricular depolarization of the heart; a ventricular pulse generator adapted to interact with the heart to emit ventricular stimulation pulses to the ventricle of the heart; and a programmable control arrangement connected to said ventricular pulse generator and to said unit that identifies a beginning of said A-V interval, programmed to cause said ventricular pulse generator to generate a ventricular stimulation pulse at a predetermined energy level after expiration of said A-V interval, and to prolong said A-V interval dependent on occurrence of a predetermined event, and to cause said ventricular pulse generator to emit a ventricular stimulation pulse at a higher energy level than said predetermined energy level after expiration of said prolonged A-V interval.