Surgical hand grip and a surgical tubular shaft instrument with a surgical hand grip

摘要

A surgical hand grip for a surgical tubular shaft instrument is provided. The hand grip includes a coupling device for coupling to a tubular shaft tool having a tubular shaft and a force transmission element movable back and forth relative thereto. The coupling device has a coupling element for coupling to the force transmission element and a connecting element for connecting to the tubular shaft. A gripping device is connected to the coupling element and is transferable from a non-actuating disposition into at least one actuating disposition and vice versa thereby changing the mutual relative spacing between the coupling element and the connecting element. The hand grip has a guiding device with a guiding body for guiding the coupling element during the transfer from the non-actuating position into the at least one actuating position along a grip axis independently of the disposition of the gripping device during the transfer.

主权项

1. A surgical hand grip for a surgical tubular shaft instrument, comprising:
a coupling device for coupling to a tubular shaft tool which has a tubular shaft and a force transmission element that is movable back and forth relative to the tubular shaft, the coupling device comprising a coupling element for coupling to the force transmission element and a connecting element for connecting to the tubular shaft, a gripping device which is operatively connected to the coupling element and is transferable from a non-actuating disposition into at least one actuating disposition and vice versa thereby changing a mutual relative spacing between the coupling element and the connecting element due to a transferral of the coupling element from a non-actuating position into at least one actuating position, a grip axis defined by the hand grip, and a guiding device comprising a guiding body for guiding the coupling element along the grip axis during a transfer of the coupling element from the non-actuating position into the at least one actuating position independently of the disposition of the gripping device during the transfer from the non-actuating disposition into the at least one actuating disposition, wherein: the guiding body comprises an axial sleeve and defines the grip axis, the coupling element is mounted in the sleeve in a displaceable manner and is guided by the sleeve during the transfer from the non-actuating position into the at least one actuating position, the sleeve comprises an axial slit-like through opening along at least a section of a displacement path which is traversed by the coupling element relative to the sleeve during the transfer from the non-actuating position into the at least one actuating position, and vice versa, the sleeve further comprises a window-like through opening which extends over a larger angular range in a circumferential direction of the grip axis than the slit-like through opening, and the coupling element, in order to couple the force transmission element thereto or to decouple the force transmission element therefrom is configured to be disengaged relative to the guiding body transversely or at an angle with respect to the grip axis and thereby partially engages in or passes through the window-like through opening.