Patent ID: 7377933

Claim:
A surgical instrument with a main part ( 10 ) on which a shaft ( 12 ) is formed distally, a slider ( 16 ), which is guided axially moveably on the shaft ( 12 ), and a handle, which has a fixed handle part ( 14 ) and a moveable handle part ( 20 ) formed on the main part ( 10 ), wherein the moveable handle part ( 20 ) engages in a slit ( 18 ) of the main part ( 10 ), is pivotably supported in this slit ( 18 ) around a rotary axis ( 22 ) with respect to the fixed part ( 14 ) and is linked to the proximal end of the slider ( 16 ), wherein the slider ( 16 ) is guided in the region of a distal front working stroke on the shaft ( 12 ) so that it cannot be removed and then is released from the guided connection with the shaft ( 12 ) in a proximal cleaning position lying beyond the working stroke and can be separated from the shaft ( 12 ), wherein the fixed handle part ( 14 ) and the moveable handle part ( 20 ) are moveable between an apart and a together position so as to be biased apart by a spring force ( 26 , 28 ) in order to pull back the slider ( 16 ) on the shaft ( 12 ) and so as to be pushed together against spring force in order to move the slider ( 16 ) on the shaft ( 12 ) in order to operate the instrument, wherein a locking part is arranged on the moveable handle part ( 20 ) which, in the locking position, contacts the main part ( 10 ) and limits the spreading apart of handle parts ( 14 , 20 ) when the slider ( 16 ) reaches the proximal end of the working stroke, wherein the locking part can be moved from its locking position into a release position in which the locking part does not limit the spreading apart of the handle parts ( 14 , 20 ), so that the slider ( 16 ) can be moved beyond the proximal end of the working stroke into its cleaning position, and wherein the locking part is a spring tongue ( 50 ) which is brought with its one end to the distal front edge of the moveable handle part ( 20 ) and is directed with its free other end against the main part ( 10 ), wherein the free end of the spring tongue ( 50 ) is spread apart from the handle part ( 20 ) under spring force in the locked position of the moveable handle part ( 20 ), as a result of which it arrives against the main part ( 10 ) when the handle parts ( 14 , 20 ) are spread apart and limits the spreading movement of the moveable handle part ( 20 ) and wherein the free end of the spring tongue ( 50 ) can be pressed onto the moveable handle part ( 20 ) against its spring force in the release position, as a result of which the free end of the spring tongue ( 50 ) enters from a position outside the slit ( 18 ) can enter into the slit ( 18 ) of the main part ( 10 ) which holds the moveable handle part ( 20 ) and then no longer hinders further spreading movement of the moveable handle part ( 20 ).