PROBLEM TO BE SOLVED: To provide forceps which are compact and can apply large force.SOLUTION: Forceps 1 are configured to open and close a movable distal end part 3 relative to a fixed distal end part 2 and include: a moving part 5 moved between a first position where the movable distal end part 3 is opened and a second position where the movable distal end part is closed on a fixing part 4 having the fixed distal end part 2 and a rotating part 7 which has the movable distal end part 3 and rotates by the movement of the moving part 5. The moving part 5 has a moving part side protrusion 12 of an arc shape for rotating the rotating part 7 by the movement, and the rotating part 7 has a rotating part side recess 15 which fits on the moving part side protrusion 12 and slides mutually with the moving part side protrusion 12 in association with the movement of the moving part 5.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2018,JPO&INPIT【課題】コンパクトでかつ大きい力を加えることが可能な鉗子を提供する。【解決手段】鉗子1は、固定先端部2に対して可動先端部3が開閉される鉗子であって、固定部4を有する固定部4上で、可動先端部3が開状態となる第1位置と閉状態となる第2位置との間で移動される移動部5と、可動先端部3を有し、移動部5の移動により回動する回動部7とを備える。移動部5は、その移動により回動部7の回動を生じさせる円弧形状を有する移動部側凸条12を備え、回動部7は、移動部側凸条12に嵌合し、移動部5の移動に伴って移動部側凸条12と相互に摺動する回動部側凹条15を有する。【選択図】図1
