AN IMPLANTABLE HEART STIMULATING DEVICE, SYSTEM AND METHOD

摘要

The invention concerns an implantable bi- ventricular heart stimulating device (10) including a control circuit (14) comprising a first atrial sensing and/or pacing circuit (25, 27) and ventricular sensing (35, 45) and pacing (37, 47) circuits for a first (IV) and a second (2V) ventricle. The device (10) is arranged to normally operate with a time VV between a pacing pulse delivered, or inhibited, by a first ventricular pacing circuit (37) and a pacing pulse delivered, or inhibited, by a second ventricular pacing circuit (47). The device (10) is arranged to determine a particular time VV<SUB>cts</SUB> that is to be used instead of VV during a capture threshold search. The invention also concerns a system including such a device (10) and a method of, in a human or animal being, performing a capture threshold search.