Disclosed is a catheter comprising a tubing member (4) a pair of rod shaped springs (22a, 22b) disposed in the tubing member (4) along an axle (X1) thereof, wherein one of the two springs is slantingly disposed with respect to the axle (X1) while the other one is slantingly disposed in an opposite direction to the axle (X1) operational wire-inserting common channels (32, 32) disposed in the tubing member (4) along the axle (X1) of the tubing member (4), and passing through both two sides (H1, H2) of an imagery plane (H) of axles (X2, X3) in the pair of rod-shaped springs (22a, 22b) and operational wires (50a, 50b) slidably inserted through the operational wire-inserting common channels (31, 32), wherein one end of either operational wires is adjacently connected to a remote end of the tubing member (4).一種導管,其係具備:管狀構件(4);一對棒狀彈簧(22a、22b),沿著管狀構件(4)的中心軸(X1)而設置於管狀構件(4)內部,其中一者相對於中心軸(X1)偏移配置,另一者相對於中心軸(X1)朝與一者為相反之方向偏移配置;操作用線插通用管道(31、32),沿著管狀構件(4)的中心軸(X1)而設置於管狀構件(4)內部,且配置於通過一對棒狀彈簧(22a、22b)的中心軸(X2、X3)之假想平面(H)之一面側(H1)及另一面側(H2);以及操作用線(50a、50b),可滑動地插通於操作用線插通用管道(31、32),其中一者之端部連接於管狀構件(4)之遠端鄰近處。4...管狀構件22a、22b...棒狀彈簧31、32、33、34、35、36、37...管道41...第1操作用線插通用管42...第2操作用線插通用管43...第1管44...第2管45...第3管46...第4管47...第5管50a、50b...操作用線C-C...第5圖之剖面處H...假想平面H1...假想平面H的一面側H2...假想平面H的另一面側X1、X2、X3...中心軸
