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FAULT-TOLERANT HIGH VOLTAGE DELIVERY IN AN IMPLANTABLE MEDICAL DEVICE

  • US 20130053910A1
  • Filed: 08/30/2011
  • Published: 02/28/2013
  • Est. Priority Date: 08/30/2011
  • Status: Active Grant
First Claim
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1. A medical device comprising:

  • an energy storage device configured to store electrical energy for delivery of defibrillation therapy to a heart;

    a plurality of electrodes;

    a memory that stores N therapy configurations, each of the N therapy configurations defining which of the plurality of electrodes are used to deliver defibrillation therapy and further defining a waveform to be applied during delivery of defibrillation therapy, wherein N is an integer that is greater than 1;

    a switching circuit configured to connect the plurality of electrodes to the energy storage device; and

    a processing module configured to;

    control the switching circuit to deliver defibrillation therapy according to a first therapy configuration of the N therapy configurations;

    detect a fault during delivery of the defibrillation therapy according to the first therapy configuration; and

    select a second therapy configuration of the N therapy configurations based on when the fault was detected during delivery of the defibrillation therapy according to the first therapy configuration.

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