PROBLEM TO BE SOLVED: To provide a positioning medical apparatus which makes it possible to easily position a tip at an intended position in bending a bend unit by drawing an operation wire by operation at an operation unit, and has excellent operability.SOLUTION: A positioning medical apparatus 1 includes an operation unit 3 and a flexible sheath 2 in a tubular shape connected to the operation unit 3. The flexible sheath 2 is composed of: a tubular flexible unit 5 extending from the operation unit 3 side a bend unit 6 which is connected to the tubular flexible unit 5 and is bent by operation at the operation unit 3 and a tip side tubular unit 7 which is connected to the bend unit 6 and has an action site for acting on a treatment target. Drawing the operation wire 4 arranged in the flexible sheath 2 by operation at the operation unit 3 makes the tip side tubular unit 7 be drawn to bend the bend unit 6. The tubular flexible unit 5 is configured so that deformation easiness of a face connected to the inside in a bending direction of the bend unit 6 is different from that of a face connected to the outside in the bending direction over a predetermined length.COPYRIGHT: (C)2015,JPO&INPIT【課題】操作部の操作により操作ワイヤ牽引して湾曲部を湾曲させるときに、意図した位置に容易に先端部を位置させることができて操作性の良い位置決め医療機器の提供。【解決手段】操作部3と、該操作部3に連結される管状の可撓性シース2を有し、可撓性シース2が、操作部3側から延伸する管状可撓部5と、管状可撓部5に接合され操作部3の操作により湾曲する湾曲部6と、湾曲部6に接合され処置対象に働きかける作用部位を有する先端側管状部7とからなり、操作部3の操作によって、可撓性シース2内に配置された操作ワイヤ4を牽引することにより先端側管状部7を牽引して湾曲部6を湾曲させる位置決め医療機器1であって、管状可撓部5が、所定の長さに亘って湾曲部6の湾曲方向内側に連続する面と湾曲方向外側に連続する面との変形容易性を異なるよう構成する。【選択図】図2
