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Systems and methods for treating cardiac arrhythmias

  • US 9,669,230 B2
  • Filed: 02/01/2016
  • Issued: 06/06/2017
  • Est. Priority Date: 02/06/2015
  • Status: Active Grant
First Claim
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1. A subcutaneous implantable cardioverter defibrillator (SICD) for delivering a defibrillation shock to a heart of a patient, the SICD comprising:

  • two or more electrodes;

    a charge storage device for storing a charge that can be delivered to shock the heart via two or more of the electrodes;

    a controller operatively coupled to two or more of the electrodes and the charge storage device, the controller configured to;

    monitor cardiac activity of the heart of the patient via cardiac signals received via two or more of the electrodes;

    detect an occurrence of a cardiac arrhythmia based on the cardiac activity;

    determine a type of the detected cardiac arrhythmia from two or more types of cardiac arrhythmias;

    in response to finding that the determined type of cardiac arrhythmia is one of a first set of cardiac arrhythmia types, sending an instruction via two or more of the electrodes for reception by a Leadless Cardiac Pacemaker (LCP) to initiate the application of Anti-Tachycardia Pacing (ATP) therapy by the LCP;

    in response to finding that the determined type of cardiac arrhythmia is not one of the first set of cardiac arrhythmia types, not sending the instruction;

    in response to finding that the determined type of the cardiac arrhythmia is one of a second set of cardiac arrhythmia types, initiate charging of the charge storage device;

    in response to finding that the determined type of the cardiac arrhythmia is not one of the second set of cardiac arrhythmia types, waiting to initiate charging of the charge storage device; and

    wherein when an instruction was sent to initiate the application of ATP therapy by the LCP, the controller is further configured to determine when the application of the ATP therapy by the LCP was successful in terminating the cardiac arrhythmia, and when the application of the ATP therapy by the LCP was successful, not initiating charging of the charge storage device when the determined type of the cardiac arrhythmia is not one of the second set of cardiac arrhythmia types.

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