Patent ID: 9737213
Date: 2017-08-22
CPC Classifications: A61B

Claim:
1. A method for measuring oxygen saturation of serosal tissue comprising: through an opening created in an outer tissue of the abdominal cavity of a patient, inducing a temporary ischemic period for serosal tissue of an intestinal or mesentery tissue of a patient by using a device that constricts a mesenteric artery that supplies blood to the serosal tissue of the intestinal or mesentery tissue; through the opening, contacting a serosal surface of the serosal tissue of the intestinal or mesentery tissue with a first optical fiber; Transmitting radiation from a second optical fiber to the first optical fiber; emitting the radiation from the first optical fiber into the serosal surface of the serosal tissue of the intestinal or mesentery tissue; collecting reflected radiation from the serosal surface of the serosal tissue of the intestinal or mesentery tissue with the first optical fiber; transmitting the reflected radiation from the first optical fiber to a third optical fiber, wherein the reflected radiation is received by a light detector; through the opening, measuring oxygen saturation of the serosal tissue of the intestinal or mesentery tissue during the temporary ischemic period from the contacting of the serosal surface of the serosal tissue of the intestinal or mesentery tissue; using a processor, analyzing the oxygen saturation of the serosal tissue of the intestinal or mesentery tissue during the temporary ischemic period based on the radiation received in the third optical fiber; and diagnosing 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.