There are sacculus portion (2) in the distal portion for constituting the guiding hose (5) for the treatment of tool for endoscope, in the distal end for the balloon membrane (3) for constituting sacculus portion (2), the first outer peripheral surface of distal side (5a) that guiding hose (5) is bonded on the continuous distal surface of outer surface (3a) of balloon membrane (3), in the proximal end of balloon membrane (3), the second outer peripheral surface of distal side (5b) that guiding hose (5) is bonded on the continuous proximal end face of inner surface (3b) of balloon membrane (3), second outer peripheral surface of distal side (5b) is located at the closer proximal lateral of the first outer peripheral surface of ratio distal side (5a) of guiding hose (5). By having the structure, sacculus portion can be made not extract with not damaging when extracting treatment tool for endoscope across endoscope.
