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Integrity testing method and apparatus for delivering vapor to the uterus

  • US 10,179,019 B2
  • Filed: 05/21/2015
  • Issued: 01/15/2019
  • Est. Priority Date: 05/22/2014
  • Status: Active Grant
First Claim
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1. A method of performing a patency test for a uterine ablation device, comprising:

  • inserting the uterine ablation device into a uterus of a patient;

    closing an outflow valve to seal an outflow lumen of the uterine ablation device;

    delivering gas or fluid from an inflow lumen of the uterine ablation device into the uterus to achieve uterine cavity distension;

    opening the outflow valve only partially to remove gas or fluid from the uterus with the outflow lumen of the uterine ablation device while maintaining uterine cavity distension;

    determining a flow rate of gas or fluid in the outflow lumen while the outflow lumen is only partially opened;

    comparing the flow rate of gas or fluid in the outflow lumen to a threshold value; and

    determining that the uterine ablation device is not clogged or embedded in tissue if the flow rate of gas or fluid is above the threshold value.

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