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Method and apparatus for detecting arrhythmias in a subcutaneous medical device

  • US 10,265,536 B2
  • Filed: 09/20/2016
  • Issued: 04/23/2019
  • Est. Priority Date: 03/29/2006
  • Status: Active Grant
First Claim
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1. A system comprising:

  • a plurality of electrodes;

    charge generation and storage circuitry configured to generate and store a charge for delivery as an anti-tachyarrhythmia shock to a patient via at least two of the plurality of electrodes;

    sensing circuitry coupled to at least two of the plurality of electrodes and configured to sense, during each time period of a plurality of time periods, a first cardiac signal segment with a first sensing vector and a second cardiac signal segment with a second sensing vector; and

    processing circuitry configured to;

    classify each of the first cardiac signal segments and the second cardiac signal segments as shockable or not shockable;

    determine a number of the first cardiac signal segments classified as shockable and a number of the second cardiac signal segments classified as shockable;

    determine to deliver the anti-tachyarrhythmia shock to a patient based at least on the number of the first cardiac signal segments classified as shockable and the number of the second cardiac signal segments classified as shockable; and

    control the charge generation and storage circuitry to deliver the anti-tachyarrhythmia shock to the patient in response to the determination to deliver the anti-tachyarrhythmia shock.

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