Patent ID: 8200333
Filing Date: 2012-06-12
Classification: A61N

Abstract:
1. An implantable medical device (IMD) comprising: a controller; a pulse generator operably coupled with the controller; an atrial lead coupled with the pulse generator; a ventricular lead coupled with the pulse generator; an R wave detection module; a cardiac cycle length (CL) determination module; a sensor operably coupled with controller and configured to provide data indicative of a specific cardiac event; an electromechanical systole (EMS) determination module that determines a paced EMS value (EMSp) as an interval between a ventricular pacing pulse and the sensor indicated cardiac event and a sensed EMS value (EMSs) as an interval between a sensed intrinsic R wave and the sensor indicated cardiac event; and an AV interval programming module configured to provide an AV interval to the controller based upon the current cycle length and the determined EMS value.