Method and system for detecting capture using a coronary vein electrode
First Claim
1. A method of detecting capture in multiple chambers of a patient'"'"'s heart, comprising:
- sensing, through a single sense amplifier channel, a cardiac signal using a coil electrode positioned at a coronary vein location of the patient'"'"'s heart, the cardiac signal responsive to stimulation signals applied to the multiple heart chambers during a cardiac cycle; and
determining if capture occurs with respect to the multiple chambers of the patient'"'"'s heart using the sensed cardiac signal.
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Accused Products
Abstract
A method and device provide for determining capture in multiple chambers of a patient'"'"'s heart using an electrode inserted into a coronary vein of the patient'"'"'s heart. The coronary vein electrode is positioned adjacent to multiple heart chambers and is responsive to cardiac signals originating in the multiple chambers. The coronary vein electrode may be coupled to a single sense amplifier to detect the cardiac signals. Pace pulses may be applied to multiple heart chambers simultaneously or according to a phased timing sequence. Cardiac signals responsive to the pace pulses sensed using the coronary vein electrode may be used to verify capture in the multiple chambers of the heart.
87 Citations
26 Claims
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1. A method of detecting capture in multiple chambers of a patient'"'"'s heart, comprising:
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sensing, through a single sense amplifier channel, a cardiac signal using a coil electrode positioned at a coronary vein location of the patient'"'"'s heart, the cardiac signal responsive to stimulation signals applied to the multiple heart chambers during a cardiac cycle; and determining if capture occurs with respect to the multiple chambers of the patient'"'"'s heart using the sensed cardiac signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A system for detecting capture in multiple chambers of a patient'"'"'s heart, comprising:
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means for sensing, through a single sense amplifier channel, a cardiac signal using a coil electrode positioned at a coronary vein location of the patient'"'"'s heart, the cardiac signal responsive to stimulation signals applied to the multiple heart chambers during a cardiac cycle; and means programmed to determine if capture occurs in multiple chambers of a patient'"'"'s heart using the sensed cardiac signal. - View Dependent Claims (22, 23, 24, 25, 26)
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Specification