Cardiac signal template generation using waveform clustering
First Claim
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1. A system for characterizing types of cardiac pacing responses, comprising:
- a pulse generator configured to deliver pacing pulses to a heart;
a sensor system configured to sense cardiac signals following delivery of the pacing pulses;
a template processor configured to extract features of the cardiac signals and to cluster the features into a plurality of clusters, the processor further configured to select one or more predominant clusters from the plurality of clusters and to form a captured response template using the predominant clusters, and to select one or more less predominant clusters and to form an additional template characterizing a pacing response other than capture using the one or more less predominant clusters; and
a memory configured to store the captured response template and the additional template.
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Abstract
Cardiac devices and methods using cardiac waveform clustering for template generation are described. A method of characterizing a cardiac response involves delivering pacing pulses to heart, the pulses having an energy greater than a capture threshold. Cardiac signals are sensed following the pulses. Cardiac signal characteristics, waveforms, and/or features are clustered into a plurality of clusters. A cardiac response template is formed using one or more of the plurality of clusters.
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21 Claims
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1. A system for characterizing types of cardiac pacing responses, comprising:
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a pulse generator configured to deliver pacing pulses to a heart; a sensor system configured to sense cardiac signals following delivery of the pacing pulses; a template processor configured to extract features of the cardiac signals and to cluster the features into a plurality of clusters, the processor further configured to select one or more predominant clusters from the plurality of clusters and to form a captured response template using the predominant clusters, and to select one or more less predominant clusters and to form an additional template characterizing a pacing response other than capture using the one or more less predominant clusters; and a memory configured to store the captured response template and the additional template. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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Specification