Patent ID: 8121686
Filing Date: 2012-02-21
Classification: A61N

Abstract:
1. A method including: detecting, from one of first and second electrodes, each associated with a first heart chamber, a first fiducial point associated with a first depolarization of the first heart chamber; detecting, from the first electrode, a second fiducial point associated with the first depolarization; detecting, from one of the first and second electrodes, a third fiducial point associated with a second depolarization of the first heart chamber; detecting, from the second electrode, a fourth fiducial point associated with the second depolarization; measuring a first time interval between the first and second fiducial points; measuring a second time interval between the third and fourth fiducial points; selecting an electrode from one of the first and second electrodes, by selecting the first electrode if the first time interval is longer than the second time interval, and selecting the second electrode if the second time interval is longer than the first time interval; and delivering from the selected electrode a subsequent stimulation for evoking a contraction of the first heart chamber.