Patent ID: 8690038

Claim:
A surgical instrument with a gearing, wherein: a linearly inserted rack produces via a gear pair an opposite linear movement of a slide whereupon the instrument is open and closed; characterized in that the rack is linearly inserted into a handle and pulled out by means of a lever; a gear A and a gear B form a gear pair firmly joined together, wherein the size ratio of the gear A and the gear B determines a transmission ratio and a reduction ration of the instrument; and characterized in that the gear pair is operably mounted in the handle and able to turn; a rack B is firmly joined to the slide; the lever is mounted in the handle and can turn and is opened by a spring pair; a cover laterally guides a rack A and the gear pair and fixably holds the rack A and the gear pair in operative engagement; and characterized in that a diaphragm protects the rack B of the slide.