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EXTERNAL SENSING SYSTEMS AND METHODS FOR GASTRIC RESTRICTION DEVICES

  • US 20080097188A1
  • Filed: 07/18/2007
  • Published: 04/24/2008
  • Est. Priority Date: 10/20/2006
  • Status: Abandoned Application
First Claim
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1. A method for determining the flow rate of a fluid passing through a restricted portion of a gastric lumen of a patient comprising:

  • providing a magnetic sensor external to the patient, the magnetic sensor configured to detect a quantity of fluid disposed upstream of the restricted portion of the gastric lumen;

    measuring the quantity of fluid disposed upstream of the restricted portion of the gastric lumen at a first time with the magnetic sensor;

    measuring the quantity of fluid disposed upstream of the restricted portion of the gastric lumen at a second time with the magnetic sensor; and

    determining the flow rate by subtracting the quantity of fluid disposed upstream of the restricted portion of the gastric lumen at the second time from the quantity of fluid disposed upstream of the restricted portion of the gastric lumen at the first time and dividing the subtracted value by the elapsed time between the first time and the second time.

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