Patent ID: 7239913
Filing Date: 2007-07-03
Classification: A61N

Abstract:
1. A method including: detecting, from a first electrode associated with a first heart chamber, a first fiducial point associated with a first depolarization of the first heart chamber; detecting, from a second electrode associated with a second heart chamber, a second fiducial point associated with a second depolarization of the second heart chamber; detecting, from a third electrode associated with the second heart chamber, a third fiducial point associated with the second depolarization of the second heart chamber, in which the second and third fiducial points are substantially similarly located on the second depolarization; measuring a first time difference between the first and second fiducial points; measuring a second time difference between the first and third fiducial points; selecting the second electrode if the first time difference is longer than the second time difference, and selecting the third electrode if the second time difference is longer than the first time difference; and delivering from a selected electrode a subsequent stimulation for evoking a contraction of the second heart chamber.