LEADLESS PACEMAKER CAPSULE CARDIAC RESYNCHRONIZATION THERAPY SYSTEM OPTIMIZATION

摘要

A leadless pacemaker capsule cardiac resynchronization therapy (CRT) system and method are disclosed. The CRT system includes three leadless pacemaker capsules, each arranged for implantation in one of the right atrium, right ventricle and left ventricle. Each of the leadless pacemaker capsules includes a pressure sensor arranged to measure the blood pressure along the cardiac cycle, an intracardiac electrogram sensing circuit, a stimulation circuit, a wireless communication unit and a processor. The processors of the three leadless pacemaker capsules arranged to cooperate and determine appropriate timing and deliver stimulation via the respective stimulation circuits so as to re-synchronize the ventricles' contractions responsive to the measured right and left intra-ventricular blood pressure.