It possesses the long frame (2) the forceps for the surgery which (1), the aforementioned frame, mutually the relative motion possible two opening components (5 and 6) the forceps opening which is included has (3) for the distal end, at the same time, the channel which has the manipulation grip section (4) for the proximal edge, the operating rod which passes (17) with, the aforementioned operating rod or the aforementioned operating rod (17) vis-a-vis portable direction (v) in the aforementioned forceps opening (3) with the aforementioned manipulation grip section, the aforementioned frame of air in (2) vertical movement possibly the Interpolation diagonal distribution facilities is done (19) the aforementioned forceps opening in inside(3) or the aforementioned operating rod (17) one cam (18) through with engagement at least, the aforementioned channel (19), the inclined angle which is smaller than the largest inclined angle where partly, the aforementioned channel (19) the self lock rises at least in inside (S V) possessing, it is formed the aforementioned opening component (5 and 6) relative motion in those which are control possible.< Choice figure >Drawing 2細長い軸部(2)を有する外科用鉗子(1)であって、前記軸部は、その遠位端に、互いに相対運動可能な2つの口部材(5、6)を含む鉗子口(3)を備え、かつ、その近位端に操作把持部(4)を備えており、前記操作把持部により、中空の前記軸部(2)に縦移動可能に挿通された操作ロッド(17)と、前記操作ロッドまたは前記鉗子口(3)に前記操作ロッド(17)の移動方向(V)に対して斜めに配設された溝(19)内での前記鉗子口(3)または前記操作ロッド(17)の少なくとも1つのカム(18)の係合とを介して、前記口部材(5、6)の相対運動を制御可能であるものにおいて、前記溝(19)は、少なくとも部分的に、前記溝(19)内でセルフロックが起きる最大傾斜角度よりも小さい傾斜角度(S-V)を有して形成されている。【選択図】図2
