Nontraumatic tube method for detecting a vessel responsible for colonic diverticular hemorrhage

Fig. 1 Structure of a nontraumatic tube. a b c d Fig. 2 Schema of the nontraumatic tube method. a Insert the nontraumatic tube into the diverticulum where the adherent clot is attached. b Remove the blood clot by washing from the spray hole of the nontraumatic tube. c Remove the blood clot using suction from the spray hole of the nontraumatic tube. d Examine the diverticulum for signs of an exposed vessel by expanding the opening of the diverticulum using the nontraumatic tube.