| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a treatment tool for an endoscope, which is capable of improving rotary operationality and operability of a movable distal end portion and making the procedure easy. <P>SOLUTION: A treatment tool of an endoscope includes a movable distal end portion 5 that performs a treatment on a living body, a flexible first coil sheath 6 into which a wire 6a is spirally wound, a flexible second coil sheath 7 which keeps a plurality of wires 7a spirally wound in the same direction and concentrically fitted onto or into the first coil sheath 6, an operation wire 8 that is formed into an elongated thin shape, a distal end thereof being connected to the movable tip end portion 5, and the operation wire being movably inserted into the first coil sheath 6, and an operation portion for advancing and retracting the operation wire 8, and the distal end of the second coil sheath 7 is fixed to the movable distal end portion 5 and the base end thereof is fixed to the operation portion. <P>COPYRIGHT: (C)2008,JPO&INPIT |
