It has the handle (4) the surgical instrument tool which (1) the grip hand (3), to grasp and the body (7) with, grasp and the grip lever of the fixing which was formed to firm to the body (8) with, grasp and the body (7) the operational grip lever which is laid out operationally (10) with, to pass by inside the handle, the ended effector where the handle (4) is laid out in the destal of the distance is manipulated the operating rod which (5) the proximal end mount (11) the operational grip lever (10) the lamp foot which is laid out (12) with to have (6) for the sake of, at that time the lamp foot (12), the operational grip lever (10) At lamp foot position, you grasp the handle (4) and to the hand (3) to install the end mount (11) you store in order, or it is grasped and from the hand (3) the handle (4) to remove, the end mount (11) to release the grip hand and it is formed furthermore it is grasped the spring (13) it has, as for the grip spring, the operating rod (5) is not installed when, on the one hand the grip lever of fixing (8) or it is grasped and the body (7) with it is supported in order in order when, and with another side the operational grip lever (10) stopper (17) with it is supported when, the operational grip lever thatIn order to move to lamp foot position, you grasp and the operational grip lever (10) the grip hand which adds power in (3), the hand (3) has the operation release device, grasps the operation release device and, in the hand (3) the occasion where you can install the operating rod (5), the operational grip lever (10) grasps the application of power and features that it operates releases the spring (13) with.柄(4)を備えた外科用器具(1)の握り手(3)であって、握りボディ(7)と、握りボディに不動に形成された固定の握りレバー(8)と、握りボディ(7)に可動に配置された可動握りレバー(10)と、柄内を通り、柄(4)の遠位の端部に配置されたエンドエフェクタ(6)を操作する操作ロッド(5)の近位の末端部(11)のために可動握りレバー(10)に配置されたマウント(12)とを備え、その際マウント(12)が、可動握りレバー(10)のマウント位置で、柄(4)を握り手(3)へ取り付けるために末端部(11)を収容する、又は握り手(3)から柄(4)取り外すために末端部(11)を解放するために形成されており、握り手はさらに握りバネ(13)を備え、握りバネは、操作ロッド(5)が取り付けら