Abstract: A medical suturing device is provided which basicly includes a base, a bridge and a head. The bridge extends between and is attached at its ends to the base and the head. The head receives the staples therein (in a staple cartridge) and includes the mechanism to fire the staples. The base includes an anvil which the ends of the staples contact when they are driven through a workpiece. The staple driving mechanism includes an H-shaped body member which receives the cartridge of staples in the lower half of the "H", a rod-like wedge which is slidably received in the upper half of the "H", a rocker plate which is attached perpendicularly to the body member, a rocker arm which is rotatably attached to the rocker plate and interfaces a portion of the wedge, a staple driver which extends between and interfaces the wedge and the staples, and a pneumatic rod which extends from a pneumatic inlet and interfaces the rocker arm. The pneumatic rod is slidable between an in and an extended position.