CATHETER FOR COMMON HEPATIC DUCT

摘要

Disclosed is a device for inserting a stent, which can insert a stent into a bile duct, a bladder, or the like by using endoscopic ultrasound (EUS). The device includes: an inner guide tube; a punching member joined with a front end portion of the inner guide tube; a pressing member which maintains the constant distance from the punching member and is joined with the inner guide tube; the stent arranged between the punching member and the pressing member and on an outer circumference of the inner guide tube; and an outer guide tube provided to the outer circumference of the inner guide tube. The punching member is formed in the shape of a cone or a polypyramid. The distance from the center line in the lengthwise direction of the punching member to an outer side of the punching member decreases as the centerline gets close to an front end.