A surgical instrument configured to join tissue, comprising: a handle assembly (12) that includes an actuator member (18)； an elongated cannular rod (14), extending distally from the handle assembly and defining a first longitudinal axis； an end effector (24), disposed adjacent to a distal portion of the elongate portion, the end effector having a pair of first and second jaw members (30a, 24a) defining a gap between them, at least one being from the first and second pivotally movable jaw members from an open position where the jaw members are disposed in separate relation to each other, to a clamping position where each of the first and second jaw members cooperates to grip the tissue, each of the first and second members being elongated jaw, and defining a second longitudinal axis when they are in a clamping position, and each of the first and second jaw members including a respective longitudinal track (112, 120)； an actuator assembly (100) disposed in mechanical cooperation with the end effector, wherein actuation of the actuator member causes at least a portion of the actuator assembly to be moved from a distal portion (34) of the effector toward a proximal portion ( 36) of the end effector through the tracks of the first and second jaw members； the second jaw member having a cartridge (28) of surgical staples and a distal end extending transversely to the second longitudinal axis at least partially enclosing the gap between the first jaw member and the second jaw member, and a means lock (40, 42) to block the first jaw member with respect to the second jaw member.Un instrumento quirúrgico configurado para unir tejido, que comprende: un conjunto de mango (12) que incluye un miembro actuador (18)； una varilla canular (14) alargada, que se extiende distalmente desde el conjunto de mango y que define un primer eje longitudinal； un efector (24) extremo, dispuesto adyacente a una porción distal de la porción alargada, teniendo el efector extremo un par de primer y s
