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Patient posture determination and stimulation program adjustment in an implantable stimulator device using impedance fingerprinting

  • US 9,446,243 B2
  • Filed: 09/11/2013
  • Issued: 09/20/2016
  • Est. Priority Date: 12/07/2012
  • Status: Active Grant
First Claim
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1. An implantable stimulator device, comprising:

  • a plurality of electrodes configured to provide electrical stimulation to a patient; and

    circuitry comprising an impedance algorithm configured to determine an impedance between a plurality of combinations of the electrodes at a plurality of different frequencies during quiet periods when the electrical stimulation at a first frequency is not occurring, and to determine a measured impedance fingerprint from the determined impedances,wherein the impedance algorithm is further configured to select a stimulation program to be provided to the electrodes in accordance with the measured impedance fingerprint.

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