#$%^&*AU2014201008B220180329.pdf#####CIRCULAR STAPLING DEVICE INCLUDING BUTTRESS RELEASE MECHANISM ABSTRACT A circular stapling device (10) includes a handle assembly (20), an elongated body (30), an end effector (40), and one or more buttress members (140). The elongated body (30) extends from the handle assembly (20). The end effector (40) is mounted on a distal end of the elongate body (30) and supports the one or more buttress members (140). A buttress release mechanism operatively coupled to the end effector (40) selectively secures the one or more buttress members (140) to the end effector (40).