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System and method for automatically selecting electrode polarity during sensing and stimulation

  • US 20020193834A1
  • Filed: 04/12/2001
  • Published: 12/19/2002
  • Est. Priority Date: 04/12/2001
  • Status: Active Grant
First Claim
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1. 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.

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