PROBLEM TO BE SOLVED: To provide an operation member in which the curving operation of catheter tips can easily be performed without moving a relatively large member.SOLUTION: An operation member includes: a rotary operation part 10 fixed to a medical long body 100 and rotating the medical long body in the shaft circumference a pulling wire 20 fixed to the medical long body a pulling operation part 30 connected with the pulling wire, and curving at least a portion of the medical long body to the direction intersecting with the axial direction by pulling the pulling wire a supporting part 40 rotatably provided around the shaft circumference of the medical long body, and supporting the pulling operation part while enabling the pulling operation a connection part 50 for connecting the supporting part with the rotary operation part, and rotating the supporting part and the pulling operation part around the shaft circumference of the medical long body with the rotation of the rotary operation part and a grip part 60 limited in the axial movement by being disposed between the rotary operation part and the supporting part, and provided turnably and independently to the rotary operation part and the supporting part.COPYRIGHT: (C)2015,JPO&INPIT【課題】比較的大きな部材を移動させることなく、カテーテル先端部の湾曲操作を容易に行うことのできる操作部材を提供する【解決手段】医療用長尺体100に固定され、医療用長尺体を軸周りに回転させる回転操作部10と、医療用長尺体に固定された牽引ワイヤ20と、牽引ワイヤが接続され、牽引ワイヤを牽引することによって医療用長尺体の少なくとも一部を軸方向と交差する方向へ湾曲させる牽引操作部30と、医療用長尺体の軸周りに回転可能に設けられ、牽引操作部を牽引動作が可能な状態で支持する支持部40と、回転操作部と支持部とを連結し、回転操作部の回転に伴って支持部及び牽引操作部を医療用長尺体の軸周りに回転させる連結部50と、回転操作部と支持部との間に配置されることによって軸方向の移動を制限され、回転操作部及び支持部に対し独立して回動自在に設けられた把持部60と、を有する操作部材である。【選択図】図1