Clamp drive shaft

The surgical forceps may include a drive pin, an outer tube, a first jaw, a second jaw, and an inner tube. The outer tube may define a longitudinal axis. The first jaw may be pivotally connected to the outer tube. The first jaw may include a pair of flanges at a proximal end portion of the first jaw, where each flange may include a rail that receives a drive pin. The inner tube may be located within the outer tube and may extend along a longitudinal axis. The inner tube may include a pair of arms extending from a distal end portion of the inner tube. The drive pin is securable to the pair of arms. The inner tube is translatable within the outer tube to drive the drive pin along the track to move the second jaw between an open position and a closed position. 手术钳可以包括驱动销、外管、第一钳口、第二钳口以及内管。外管可以限定纵向轴线。第一钳口可以以可枢转的方式连接至外管。第一钳口可以包括位于第一钳口的近端部分处的一对凸缘，其中，每个凸缘可以包括接纳驱动销的轨道。内管可以位于外管内并且可以沿着纵向轴线延伸。内管可以包括从内管的远端部分延伸的一对臂。驱动销能够紧固至一对臂。内管能够在外管内平移，以沿着轨道驱动该驱动销，以使第二钳口在打开位置与闭合位置之间移动。