Patent ID: 6219579
Filing Date: 2001-04-17
Classification: A61N

Abstract:
A system for bi-ventricular pacing, comprising;RVP generating means for generating and delivering pacing pulses to the patient's right ventricle;LVP generating means for generating and delivering pacing pulses to the patient's left ventricle;atrial sense means for determining the cyclical time of excitation of the patient's right and left atria;RAVD control means for controlling said RVP generating means to deliver pace pulses at a predetermined RAVD delay following right atrial activation;LAVD control means for controlling said LVP generating means to generate pace pulses at an LAVD delay following left atrial activation;output means for determining a measure of cardiac output from the patient's left ventricle;adjusting means for adjusting said LAVD and RAVD delays and determining the optimum relationship of said LAVD and RAVD delays which results in maximized cardiac output;program means for programming said RAVD control means and said LAVD control means to control delivery of pacing pulses to the left and right ventricles with said optimum relation.