MEDICAL DEVICES, SYSTEMS, AND RELATED METHODS FOR TISSUE MANIPULATION

原文（中国語）

A medical device and a medical system include a cap body with a wall forming a lumen and a working channel insert positioned within the lumen. The working channel insert includes a main body and a cavity, and a flange extending radially inward from an inner surface of the wall of the cap body. The flange is positioned at a distalmost portion of the working channel insert. An outer surface of the main body of the working channel insert and the inner surface of the wall of the cap body form a longitudinally extending gap.