Patent ID: 8527050
Filing Date: 2013-09-03
Classification: A61N

Abstract:
1. A method for discriminating between cathodal and anodal cardiac capture during bipolar electrical stimulation, the method comprising: delivering a first pacing pulse using a first candidate cathode electrode positioned along a heart chamber and a universal anode; measuring a first control response to the first pacing pulse; delivering a plurality of second pacing pulses using a plurality of candidate bipoles comprising the first candidate cathode electrode paired with each of a plurality of anodes positioned along the heart chamber; measuring a bipolar response to the plurality of second pacing pulses for each of the plurality of candidate bipoles; establishing a threshold response and a threshold range; comparing the first control response to the threshold response; responsive to the first control response meeting the threshold response, classifying the first control response as normal and comparing each of the bipolar responses to the first control response; and classifying each of the bipolar responses for the plurality of candidate bipoles, wherein a given bipolar response for an associated candidate bipole of the plurality of bipoles is classified as normal if the given bipolar response is within the threshold range of the first control response and classified as abnormal if the bipolar response is outside the threshold range of the first control response.