A surgical stapling device is provided. The device includes a housing (20) an outer tube (30) extending distally from the housing (20), a disposable staple assembly (300) releasably supported on a distal end of the outer tube (30), an approximation assembly (100) operably received within the housing (20), and a staple pusher assembly (200) extending from within the housing (20) to the staple assembly (300). The outer tube (30) includes a proximal end connected with the housing (20) and a distal end. The staple assembly (300) includes a shell (302) movably supporting a pusher back (310) and a plurality of fasteners. The pusher back (310) is movable with the shell (302) to eject the plurality of fasteners from the disposable staple assembly (300). The approximation assembly (100) includes an anvil retainer (140) configured to releasably engage an anvil assembly (50). The approximation assembly (100) is operable to approximate the anvil assembly (50) and the staple assembly (300). The staple pusher assembly (200) is releasably connected to the pusher back (310) of the staple assembly (300) and is operable to effect movement of the pusher back (310) within the shell (302) and includes at least one release tab (308b) which is movable to effect separation of the staple assembly (300) and the outer tube (30).La présente invention concerne une agrafeuse chirurgicale. Le dispositif comprend un logement (20) un tube extérieur (30) sétendant distalement depuis le logement (20) un ensemble dagrafage jetable (300) supporté de manière libérable sur une extrémité distale du tube extérieur (30), un ensemble de rapprochement (100) reçu de manière opérationnelle à lintérieur du logement (20), et un ensemble poussoir dagrafes (200) sétendant depuis lintérieur du logement (20) jusquà lensemble dagrafage (300). Le tube extérieur (30) comprend une extrémité proximale raccordée au logement (20) et une extrémité distale. Lensemble dagrafage (300) comprend une coque (302) supportant de ma