Patent ID: 8855746

Claim:
An endoscopic medical tool, comprising: a flexible sheath having an inner cavity; a member provided in the sheath and configured to be ejected into a body cavity; an elastically deformable stopper projecting out toward the inner cavity in a distal end portion of the sheath, wherein the stopper is positioned and configured to prevent the member loaded inside the sheath from falling out of the sheath; and a pusher which is inserted into the sheath so as to advance and to retract freely, and the pusher is positioned and configured to push out and to eject the member from the sheath, wherein the stopper includes: a hole penetrating through a surface of the sheath so as to communicate from an outer surface of the sheath into the inner cavity; said hole is defined by a side wall which is elastically deformable, projects toward the inner cavity in a direction approximately perpendicular to a longitudinal direction of the sheath, and the side wall surrounds the entirety of the hole.