PROBLEM TO BE SOLVED: To provide a medical treatment member which has a simple structure and capable of bending a distal end part without depending on temperature.SOLUTION: A medical treatment member includes: a bendable first tube member 140 arranged on a distal end side a first wire member 170 where one end 172 is fixed to a distal end part 142 of the first tube member 140 and the other end 174 is rotatably arranged in a proximal end part 144 of the first tube member 140 and a drive mechanism 180 (182) for rotating the other end 174 of the first wire member 170. The first wire member 170 generates stress in a direction for contraction between the one end 172 and the other end 174 by twisting with the rotation of the other end 174, so that the first tube member 140 is bent.COPYRIGHT: (C)2014,JPO&INPIT【課題】単純な構造を有しかつ温度非依存性で先端部を湾曲させ得る医療用処置部材を提供する。【解決手段】先端側に配置される湾曲可能な第1チューブ部材140と、第1チューブ部材140の先端部142に固定される一端172と、第1チューブ部材140の基端部144に回転自在に配置される他端174と、を有する第1ワイヤー部材170と、第1ワイヤー部材170の他端174を回転させるための駆動機構180(182)と、を有し、第1ワイヤー部材170は、他端174の回転による捻じれによって、一端172と他端174との間に収縮する方向への応力を生じ、第1チューブ部材140を湾曲させる。【選択図】図7
