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Methods and devices for multi-stage ventricular therapy

  • US 10,413,741 B2
  • Filed: 09/19/2018
  • Issued: 09/17/2019
  • Est. Priority Date: 12/11/2007
  • Status: Active Grant
First Claim
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1. An arrhythmia treatment device comprising:

  • a plurality of electrodes, wherein the plurality of electrodes includes at least one far-field electrode configured to deliver far-field pulses, and at least one near-field electrode configured to deliver near-field pulses;

    sensing circuitry configured to detect one or more cardiac signals;

    detection circuitry operably coupled to the sensing circuitry, wherein the detection circuitry is configured to determine an atrial cycle length based on the one or more cardiac signals and to determine existence of atrial arrhythmia based at least in part on the atrial cycle length; and

    control circuitry operably coupled to the detection circuitry and to the plurality of electrodes, wherein the control circuitry is configured to initiate delivery of a plurality of pulses when the existence of atrial arrhythmia is determined by the detection circuitry, wherein the plurality of pulses initiated includes;

    a first set of biphasic pulses of 2 volts to 400 volts each configured to be delivered via the at least one far-field electrode; and

    a second set of monophasic pulses of 0.5 volts to 20 volts configured to be delivered via the at least one far-field electrode;

    wherein at least one of the first set of pulses or the second set of pulses is delivered without confirmation of conversion of the atrial arrhythmia.

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