Selection of cardiac signal features detected in multiple classification intervals for cardiac pacing response classification
First Claim
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1. A method for classifying a cardiac response to a pacing pulse, comprising:
- timing first and second adjacent classification intervals following delivery of a pacing pulse;
timing a boundary region overlapping said first and second classification intervals;
sensing a cardiac signal in said first and second classification intervals following delivery of the pacing pulse;
detecting one or more cardiac signal features in said boundary region; and
classifying the cardiac response to the pacing pulse based on the one or more cardiac signal features detected in the boundary region.
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Abstract
Cardiac devices and methods involve the detection of cardiac signals features in adjacent classification intervals. Portions of the cardiac signal features detected in adjacent classification intervals are associated and are used to classify the cardiac response to a pacing pulse. Associating the portions of the cardiac signal features may be based on expected signal morphology.
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Citations
20 Claims
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1. A method for classifying a cardiac response to a pacing pulse, comprising:
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timing first and second adjacent classification intervals following delivery of a pacing pulse; timing a boundary region overlapping said first and second classification intervals; sensing a cardiac signal in said first and second classification intervals following delivery of the pacing pulse; detecting one or more cardiac signal features in said boundary region; and classifying the cardiac response to the pacing pulse based on the one or more cardiac signal features detected in the boundary region. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A system for characterizing a cardiac response to pacing, comprising:
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a sensing system configured to sense cardiac signals following pacing pulses delivered to a heart; and a processor coupled to the sensing system, the processor configured to time first and second adjacent classification intervals following delivery of a pacing pulse, time a boundary region overlapping said first and second classification intervals, sense a cardiac signal in said first and second classification intervals, detect one or more cardiac signal features in said boundary region, and classify the cardiac response to the pacing pulse based on the one or more cardiac signal features detected in the boundary region. - View Dependent Claims (15, 16, 17, 18)
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19. A system for characterizing a cardiac response to pacing, comprising:
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means for timing first and second adjacent classification intervals following delivery of a pacing pulse; means for timing a boundary region overlapping said first and second classification intervals; means for sensing a cardiac signal in said first and second adjacent classification intervals following delivery of the pacing pulse; means for detecting one or more cardiac signal features in said boundary region of the adjacent classification intervals; and means for classifying the cardiac response to the pacing pulse based on the detected one or more cardiac signal features. - View Dependent Claims (20)
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Specification