#$%^&*AU2017200791A120170907.pdf#####SURGICAL INSTRUMENT INCLUDING ROTATING END EFFECTOR AND ROTATION-LIMITING STRUCTURE ABSTRACT A surgical instrument configured to apply tacks to tissue, the surgical instrument comprising a handle assembly (210)； an elongated portion (510) extending distally from the handle assembly (210) and defining a first longitudinal axis； an outer tube (512) extending distally from the handle assembly (210)； an end effector (520) disposed adjacent a portion of the elongated portion (510) and configured to house a plurality of tacks therein, the end effector (520) defining a second longitudinal axis； a rotation assembly (740) configured to rotate at least a portion of the outer tube (572) about the first longitudinal axis and with respect to the handle assembly (210), the rotation assembly (740) including a rotation knob (744) being rotationally fixed to a proximal portion of the outer tube (572)； and a rotation-limiting structure (749) disposed in mechanical cooperation with at least one of the rotation assembly (740) and the handle assembly (210), and configured to limit an amount of rotation of the outer tube (512) with respect to the handle assembly (210).3/52 C.,o C%1 CCo C- 3 C'4 C=1 C-"
