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Methods and devices for measuring impedance in a gastric restriction system

  • US 8,192,350 B2
  • Filed: 01/28/2008
  • Issued: 06/05/2012
  • Est. Priority Date: 01/28/2008
  • Status: Expired due to Fees
First Claim
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1. A restriction system for forming a restriction in a patient, comprising:

  • an implantable restriction device configured to form a restriction in a patient;

    at least two sensor electrodes disposed on a tissue-contacting surface of the implantable restriction device; and

    an impedance measuring device configured to be in electronic communication with the sensor electrodes and to measure an impedance between the sensor electrodes, wherein the impedance measuring device is configured tomeasure the impedance between the sensor electrodes over a period of time to gather a sequence of impedance values, and generate a plot line from the sequence of impedance values indicating a weight of the patient over the period of time.

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