Novel and safer endoscopic cholecystectomy using only a flexible endoscope via single port

Figure 1 Conceptual images of endoscopic cholecystectomy via single port. A: Local injection of saline to the gallbladder bed; B: Resection of the gallbladder from the liver was performed without any damage or bleeding due to sufficient space of local injection; C: A ring-shaped thread was placed, and one side of the ring was clipped to the fundus of the gallbladder and the other to the abdominal wall; D: The third clip was hooked to 1 side of the ring-shaped thread. The thread was hooked crosswise to the 2 supporting points of the gallbladder and abdominal wall; E: The neck of the gallbladder was cut using scissor forceps; F: Resected gallbladder was retrieved using endoscopic net forceps.