PROBLEM TO BE SOLVED: To provide surgical forceps of an endoscope capable of securing the same operation intensity as that before while further minimizing the diameter of an insert part.SOLUTION: A forward moving base part 4 is fixed to the tip of a shaft 7 and provided with a turning projection part 4c, and the forward moving base part 4c is formed integral with a body part of the forward moving base part 4. A right operating member 3R and a left operating member 3L are provided with an inclined elongated hole 3d for receiving the turning projection part 4c to fill up it, with one end thereof opened. The turning projection part 4c is relatively displaced in the inclined elongated hole part 3d by the movement of the shaft 7, so that the operating members 3R, 3L provided with the inclined elongated hole 3d are relatively turned.COPYRIGHT: (C)2014,JPO&INPIT【課題】更なる挿入部の小径化を可能としながら、従来と変わりのない作業強度を確保することが可能な内視鏡外科手術用鉗子を提供する。【解決手段】シャフト7の先端に固定され、回動凸部4cを備えた先端移動基部4の前記回動凸部4cが先端移動基部4の本体部分から一体的に形成されたものであり、右作動部材3Rと左作動部材3Lには、回動凸部4cを填め受ける、一方が開放された傾斜長孔部3dを備え、シャフト7の移動によって回動凸部4cが傾斜長孔部3d内で相対的に位置変動することで、傾斜長孔部3dを備えた作動部材3R、3Lを相対的に回動させる。【選択図】図5
