| 摘要 |
A surgical stapling instrument comprises a staple fastening assembly (1, 5; 24) including a cartridge device (5; 30) which comprises at least one row of staples (72, 77) and a generally wavy first tissue interface (34), and an anvil (1; 32) which is movable relative to the cartridge device (5; 30) and having a generally wavy second tissue interface (36) adapted to cooperate with the first tissue interface (34) of the cartridge device (5; 30) for clamping tissue therebetween and forming the ends (74) of the staples (72, 77) exiting from the cartridge device (5; 30), a staple driving device (60; 90) adapted to drive the staples (72, 77) out of the cartridge device (5; 30) towards the anvil (1; 32), wherein the staples comprise one or more non-symmetrical U-shaped staples (77) having two legs (78) with free pointed ends (74) facing toward the anvil (1; 32) and a transverse basis (79) connecting the legs (78), wherein said basis (79) is inclined with respect to the longitudinal direction (81) of the legs (78), such that the basis (79) has a length greater then its projection on a plane (80) perpendicular to the longitudinal direction (81) of the legs (78). |
