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Therapy control using relative motion between sensors

  • US 8,457,750 B2
  • Filed: 01/20/2012
  • Issued: 06/04/2013
  • Est. Priority Date: 05/07/2007
  • Status: Active Grant
First Claim
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1. A system comprising:

  • a therapy delivery device configured to deliver a therapy to a patient;

    a first activity sensor configured to generate a signal as a function of motion at a first location of a body of the patient;

    a second activity sensor configured to generate a signal as a function of motion at a second location of the body of the patient; and

    at least one processor configured to;

    compare the signal generated by the first activity sensor and the signal generated by the second activity sensor to determine a relative motion of the second location of the patient relative to the first location of the patient;

    detect a condition of a movement disorder when the relative motion substantially matches a pre-defined pattern; and

    control the therapy delivered to the patient based on the relative motion and the detected condition.

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