Patent ID: 6477417
Filing Date: 2002-11-05
Classification: A61N

Abstract:
A method of automatically selecting sensing or stimulation polarities of a plurality of sensing and stimulation electrodes that are positioned in multiple cardiac chambers, for use with a multi-site cardiac stimulation device, the method comprising the steps of:defining a plurality of sensing electrode configurations and a plurality of stimulation electrode configurations; detecting the presence of a cardiac signal in any one of the multiple cardiac chambers with a sensing electrode configuration that corresponds to a first sensing electrode positioned in a right cardiac chamber and a second sensing electrode positioned in a left cardiac chamber; selectively delivering a stimulus, on demand, to a cardiac chamber with a stimulation electrode configuration that corresponds to a first stimulation electrode positioned in a right cardiac chamber and a second stimulation electrode positioned in a left cardiac chamber; and independently selecting the polarities of the first sensing electrode, the second sensing electrode, the first stimulation electrode, and the second stimulation electrode.