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Staged rhythm detection system and method

  • US 9,775,559 B2
  • Filed: 04/15/2014
  • Issued: 10/03/2017
  • Est. Priority Date: 04/26/2013
  • Status: Active Grant
First Claim
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1. A medical device for detecting and treating tachyarrhythmia, comprising:

  • a sensing module configured to sense cardiac events in response to a cardiac signal acquired via at least some of a plurality of electrodes; and

    a processing module configured to;

    perform an initial detection process comprising detecting a shockable cardiac rhythm by comparing the cardiac signal to a first set of detection criteria;

    establish, by analyzing the cardiac signal, at least one patient-specific detection threshold during the initial detection process; and

    upon establishing the at least one patient-specific detection threshold, stop the initial detection process and start a next detection process comprising comparing the cardiac signal to a second set of detection criteria comprising the at least one patient-specific detection threshold,the first set of detection criteria relating to a first set of cardiac signal features, and the second set of detection criteria relating to a second set of cardiac signal features different than the first set of cardiac signal features.

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