A surgical stapler (10) comprising: a stem part (112)； a tool assembly (114) supported on a distal end of the rod part, the tool assembly includes an anvil and a cartridge assembly (182, 180), the cartridge assembly (180) includes a body (184) of cartridge having at least one leg (188) defining a plurality of grooves (196) and a plurality of staples (186), each of the staples has a spine (202) and a pair of curved legs (201) connected to the spine, the spine of each of the plurality of staples is rotatably supported within a respective groove of the plurality of grooves (196)； and at least one trigger cam (138a, 138b) that includes a distal end (220) defining a cam member (222), the cam member is movable within the tool assembly until sequentially engaging with each of the plurality of staples, wherein the coupling between the cam member and a staple of the plurality of staples effects rotational movement of the staple to fire the staple from the cartridge body, where the cam member (222) of the minus a trigger cam (138a, 138b) includes a first cam surface (222a) and a second cam surface (222b), the first cam surface (222a) is positioned to engage a curved leg of the pair of legs curved (201) of each of the plurality of staples and the second cam surface (222b) is positioned to engage the other curved leg of the pair of curved legs (201) of each of the plurality of staples.Una grapadora quirúrgica (10) que comprende: una parte de vástago (112)； un conjunto de herramienta (114) soportado sobre un extremo distal de la parte de vástago, el conjunto de herramienta incluye un yunque y un conjunto de cartucho (182, 180), el conjunto de cartucho (180) incluye un cuerpo (184) de cartucho que tiene al menos una pata (188) que define una pluralidad de hendiduras (196) y una pluralidad de grapas (186), cada una de las grapas tiene un lomo (202) y una pareja de patas curvadas (201) conectadas al lomo, el lomo de cada una de la pluralidad de grapas es soportado rotatoriamente de
