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Using an oximeter probe to detect intestinal ischemia

  • US 10,368,749 B1
  • Filed: 08/22/2017
  • Issued: 08/06/2019
  • Est. Priority Date: 03/24/2009
  • Status: Active Grant
First Claim
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1. A method comprising:

  • through an opening created in an outer tissue of the abdominal cavity of a patient, inducing, via a constriction device, a temporary ischemic period for serosal tissue of an intestinal or mesentery tissue, which is located in the abdominal cavity of the patient, by using the constriction device to constrict a mesenteric artery that supplies blood to the serosal tissue of the intestinal or mesentery tissue;

    through the opening, contacting a sensor probe of an oximetry device to a serosal surface of the serosal tissue of the intestinal or mesentery tissue;

    determining, by the oximetry device, a signal quality factor for contact of the sensor probe of the oximetry device to the serosal surface of the serosal tissue of the intestinal or mesentery tissue;

    measuring, via the oximetry device, whether the signal quality factor for contact of the sensor probe of the oximetry device to the serosal surface of the serosal tissue of the intestinal or mesentery tissue is within a range that indicates at least threshold contact;

    when the signal quality factor is within the range that indicates at least threshold contact, measuring oxygen saturation of the serosal tissue of the intestinal or mesentery tissue, via the oximetry device during the temporary ischemic period, from contacting of the serosal surface of the serosal tissue of the intestinal or mesentery tissue with the sensor probe;

    using a processor, analyzing, via the oximetry device, the oxygen saturation of the serosal tissue of the intestinal or mesentery tissue during the temporary ischemic period; and

    diagnosing, via the oximetry device, the patient as having intestinal ischemia according to changes in the oxygen saturation in the serosal tissue of the intestinal or mesentery tissue during the temporary ischemic period.

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