#$%^&*AU2014256425B220181206.pdf#####APPARATUS FOR ENDOSCOPIC PROCEDURES ABSTRACT A surgical stapling apparatus (100) includes a handle assembly (300), a shaft assembly (200) extending distally from the handle assembly (300), and an end effector (400) selectively detachable from the shaft assembly (200). The end effector (400) includes a first jaw member (410) and a second jaw member (420). The first jaw member (410) supports a lever (414a) that is pivotally movable relative to the firstjaw member (410) between an extended position and a retracted position. The lever (414a) is in contact with a leaf spring (412a) to spring bias the lever (414a) to the extended position. The second jaw member (420) supports a drive beam (426) that is selectively engagable with the lever (414a) to facilitate a pivotal movement of the second jaw member (420) relative to the first jaw member (410) between an unapproximated state and an approximated state.1/9 co C14 C:) C=) cc m co to C14 C=) C14 C/ C=>; C=>; C14 C=1 (=l cv".) C14 :r Zzi