Being plug tool for the surgery, at inside the tubular housing, and the tubular housing in longitudinal direction with advance cutting position and retreat protected location the displacement possible blade carrier, here, the blade which has the edge is kept on the blade carrier, the edge fit has been guided the guide section of the tubular housing which stretching is done, with advance pause position and the retreat job position which and, it engages in the blade, at the same time, at inside the tubular housing in longitudinal direction, the blade being a protected location of the self, are covered completely the displacement possible protective cap, here, the protective capWe have possessed the slit, the edge of the blade projects, passing the slit, when the protective cap is a job position, exceeding the protective cap, and, it is arranged inside the tubular housing, at the same time, the blade from cutting position the retreat device which is made to displace, here, the retreat device becomes operation possible to protected location the protective cap from job position by displacing to pause position, when in order to decrease the size of the retreat device in the plug tool for the surgery which it has, the retreat device, locks the blade in cutting position and at the same time is operated the bladeReleasing, it possesses the change element which is made to displace to pause position, the change element, the longitudinal direction axis of the tubular housing focusing on being revolution possible freely, at the same time as in longitudinal direction been firm when it is installed inside the tubular housing, furthermore, the blade carrier and/or the protective cap displaces to the longitudinal direction of the tubular housing, the change element becoming revolution possible is proposed by the cam guide section which on the one hand operates with the change element and with another side the blade carrier and/or the protective cap.外科用塞栓具であって、管状ハウジング、及び、管状ハウジング内