Detachable over-the-scope clip for colon defects in the trans intestinal natural orifice transluminal endoscopic cholecystolithotomy: A case report

Figure 1 Endoscope. A: A longitudinal incision of approximately 15 mm was made on the anterior wall of the sigmoid colon using a hook knife to access the abdominal cavity; B: The endoscope was inserted into the gallbladder cavity; C: An exploration of the gallbladder neck canal was conducted to identify any remaining stones; D: The gallbladder was then sealed with seven hemostatic clip; E: A detachable over-the-scope clip (D-OTSC) was applied to tightly close the incision; F: The original incision was closed with the D-OTSC , and surrounded by newly formed tissue; G: The exposed pulling ring of the D-OTSC was grasped with foreign body forceps, revealing that the clip had decomposed into two flaps; H: Removal of the clip resulted in minor bleeding from the wound surface.

Figure 2 Detachable over-the-scope clip. A: Release device installed on endoscope operating part; B: The wire hook leads out the wire and winds it onto the winding drum; C: Install the clamp cap onto the tip of the endoscope; D: Negative pressure suction or endoscopic double arm forceps assisted grasping of tissue; E quickly rotates the winding drum to release the fitting clip; F: Remove the binding wire, disassemble and take out the matching clip. (All images are reproduced from the Instructions for Use of the D-OTSC). The authors have obtained the permission for figure using from the Ningbo Senscure Biotechnology (Supplementary material).