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Curvature based method for selecting features from an electrophysiologic signal for purpose of complex identification and classification

  • US 7,289,845 B2
  • Filed: 12/12/2003
  • Issued: 10/30/2007
  • Est. Priority Date: 10/31/2000
  • Status: Expired due to Term
First Claim
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1. A cardiac rhythm management system, comprising:

  • at least one electrode;

    a signal sensing circuit coupled to the electrode to sense a cardiac signal, the cardiac signal having signal complexes;

    a controller coupled to the sensing circuit, wherein the controller receives the sensed cardiac signal, and wherein the controller includes;

    memory configured to store signal complexes and to store sets of predetermined templates, the predetermined templates including sets of template zones; and

    an analyzing module configured to;

    compute curvatures at sample points on the sensed cardiac signal,extract features from the computed curvatures, andclassify the signal complexes by comparing the extracted features to the template zones of the predetermined templates.

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