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Therapy module crosstalk mitigation

  • US 8,301,263 B2
  • Filed: 01/30/2009
  • Issued: 10/30/2012
  • Est. Priority Date: 10/31/2008
  • Status: Active Grant
First Claim
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1. A method comprising:

  • generating an electrical stimulation signal that has a predetermined signature with a first therapy module that delivers electrical stimulation therapy to a patient, wherein the predetermined signature is characterized by at least one of a varying duty cycle or a signal envelope of the electrical stimulation signal;

    delivering the electrical stimulation signal to tissue of the patient via a first set of electrodes connected to the first therapy module;

    sensing electrical activity within the patient with a second set of electrodes electrically connected to a second therapy module, wherein the electrical activity includes a physiological signal of the patient and a signal artifact from the delivery of the electrical stimulation signal by the first therapy module;

    generating a sensed electrical signal based on the sensed electrical activity; and

    processing the sensed electrical signal to remove at least part of the signal artifact based on the predetermined signature.

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