Multi channel approach to capture verification
First Claim
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1. A method of classifying a cardiac response to a pacing pulse, comprising:
- sensing a cardiac response to a pacing pulse via multiple sense channels, each sense channel comprising a distinct combination of sense electrodes and sensing circuitry; and
discriminating between cardiac pacing responses including capture, non-capture with intrinsic activity, and fusion, comprising;
discriminating between a first two cardiac pacing responses using a first cardiac response signal sensed via a first sense channel of the multiple sense channels; and
detecting a third cardiac pacing response using a second cardiac response signal sensed via a second sense channel of the multiple sense channels.
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Abstract
Methods and systems involve classifying the cardiac response to pacing using a multi-channel approach. Multiple cardiac response signals are sensed via multiple sense channels. Each sense channel comprises a distinct combination of electrodes and sensing circuitry. The cardiac response to the pacing pulse is classified based on the morphology of the cardiac response signals. Classifying the cardiac response involves discriminating between capture, fusion, non-capture, and non-capture with intrinsic activity.
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Citations
20 Claims
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1. A method of classifying a cardiac response to a pacing pulse, comprising:
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sensing a cardiac response to a pacing pulse via multiple sense channels, each sense channel comprising a distinct combination of sense electrodes and sensing circuitry; and discriminating between cardiac pacing responses including capture, non-capture with intrinsic activity, and fusion, comprising; discriminating between a first two cardiac pacing responses using a first cardiac response signal sensed via a first sense channel of the multiple sense channels; and detecting a third cardiac pacing response using a second cardiac response signal sensed via a second sense channel of the multiple sense channels. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A capture detection system for detecting cardiac responses of a heart to pacing pulses, comprising:
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pacing pulse generating circuitry for generating pacing pulses for delivery to the heart; multiple sense channels configured to sense multiple cardiac response signals associated with one of the pacing pulses, each sense channel comprising a distinct combination of sense electrodes and sensing circuitry; and cardiac response detection circuitry coupled to the multiple sense channels, the cardiac response detection circuitry being configured to discriminate between cardiac pacing responses including capture, non-capture with intrinsic activity, and fusion; wherein the cardiac response detection circuitry is configured to discriminate between a first two cardiac pacing responses using a first cardiac response signal sensed via a first sense channel of the multiple sense channels, the cardiac response detection circuitry also being configured to detect a third cardiac pacing response using a second cardiac response signal sensed via a second sense channel of the multiple sense channels. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification