Patent ID: 6078837
Filing Date: 2000-06-20
Classification: A61N

Abstract:
A cardiac stimulator comprising:a lead system carrying a plurality of stimulation electrodes adapted to be located at multiple sites adjacent tissue of a patient's heart;stimulation pulse generators coupled to deliver stimulation pulses to said stimulation electrodes;depolarization sensors responsive to depolarizations of cardiac tissues at said sites;means responsive to said depolarization sensors for determining exitable gaps of tissue at said sites associated with depolarizations at said sites and associated with stimulation pulses delivered to said sites by said stimulation electrodes;means for calculating stimulus pulse delivery times at variable delivery times within said determined exitable gaps at said sites to cause convergence of depolarization cycles at said sites over a series of delivered stimulation pulses; andcontrol means for triggering said pulse generators to deliver stimulation pulses to said stimulation electrodes at said calculated times.