Surgical instrument

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).