| 摘要 |
PROBLEM TO BE SOLVED: To prevent the buckling of the operator side of an operation wire and to facilitate the work of inserting the operation wire into a flexible sheath by disposing a reinforcing cover loosely inserted with the operation wire between the base end and operation member of the flexible sheath freely separably from the operation wire. SOLUTION: A sheath base end mouthpiece 11 fixed to the base end of the flexible sheath 10 is freely attachably and detachably connected to the operation part 30 and the sheath base end mouthpiece 11 is fixed to an operation part body 31 by a manual retaining ring 32 and the bending of the base end side of the flexible sheath 10 is prevented by a bending preventive tube 12. The operation wire 20 is axially freely advanceably and retreatably inserted into the flexible sheath 10 and a snare loop is connected to its front end. In the operation part 30, a metallic reinforcing pipe (reinforcing cover) 40 is loosely fitted to the operation wire 20 from the inside of a slot 39 to the inside of the inlet of the flexible sheath 10 so as to prevent the buckling of the operation wire 20 drawn out of the inside of the flexible sheath 10 at the time the operation wire 20 is operated to be pushed in. |
