Patent ID: 7047073
Filing Date: 2006-05-16
Classification: A61N

Abstract:
1. An implantable cardiac stimulating device comprising: a housing; a pacing circuit contained in said housing, said pacing circuit including a stimulating pulse generator arrangement for emitting stimulating pulses and an amplifying and sensing arrangement for sensing cardiac depolarizations; an electrode lead system connected to said pulse generator arrangement and to said amplifying and sensing arrangement, said electrode lead arrangement including a first electrode adapted for positioning to stimulate and sense depolarizations in a left ventricle of a heart, a second electrode adapted for positioning to sense depolarizations of a left atrium of the heart, and a third electrode adapted for positioning to stimulate and sense depolarizations in a right atrium of the heart; and said pacing circuit further including AV-delay optimization circuitry connected to said pulse generator arrangement and said amplifying and sensing arrangement, which starts a first AV-delay upon a sensed depolarization of the right atrium, and supercedes said AV-delay with a second AV-delay, optimized for a left side of the heart, upon sensing of a depolarization of the left atrium.