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Dynamic selection of algorithms for arrhythmia detection

  • US 8,285,371 B2
  • Filed: 04/06/2010
  • Issued: 10/09/2012
  • Est. Priority Date: 04/22/2009
  • Status: Active Grant
First Claim
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1. An apparatus comprising:

  • a first implantable sensor configured to produce a first electrical sensor signal representative of cardiac depolarization events of a heart of a subject;

    a second implantable sensor configured to produce a second electrical sensor signal representative of hemodynamic function of the heart;

    a signal analyzer circuit, communicatively coupled to the first and second implantable sensors, configured to;

    detect an arrhythmic event from the first sensor signal; and

    calculate hemodynamic stability in response to the arrhythmic event detection using the second sensor signal; and

    an arrhythmia discrimination circuit, communicatively coupled to the signal analyzer circuit and the first implantable sensor, configured to;

    preselect the plurality of candidate arrhythmia discrimination algorithms from among a set of algorithms implementable by the arrhythmia classification circuit;

    classify the detected arrhythmia using each of the candidate arrhythmia discrimination algorithms;

    weight the arrhythmia classifications by the candidate algorithms according to the calculated hemodynamic stability;

    ultimately classify the detected arrhythmia according to the weights; and

    provide the arrhythmia classification to a user or process.

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