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Method and system for delivering cardiac resynchronization therapy with variable atrio-ventricular delay

  • US 8,626,289 B2
  • Filed: 06/11/2013
  • Issued: 01/07/2014
  • Est. Priority Date: 12/22/2003
  • Status: Active Grant
First Claim
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1. An implantable cardiac rhythm management device, comprising:

  • a plurality of sense amplifiers configured to sense cardiac electrical activity;

    a plurality of pulse generators configured to deliver pacing pulses; and

    a controller coupled to the plurality of sense amplifiers and plurality of pulse generators, the controller configured to;

    control delivery of the pacing pulses using a programmable atrio-ventricular delay (AVD) interval;

    receive values of a first cardiac parameter and values of a second cardiac parameter;

    determine values of the AVD interval each associated with a value of the second cardiac parameter and computed using a corresponding value of the first cardiac parameter;

    determine a present value of the second cardiac parameter;

    determine an optimum value of the AVD interval using the determined values of the AVD interval and the present value of the second cardiac parameter; and

    set the AVD interval to the optimum value of the AVD interval.

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