following manner the anvil carrier 90 containing a perforated buttress strip 100 is slid onto the open anvil 40 of the surgical stapling device 20 next the anvil 40 is closed and the end effector 35 of the surgical stapling device 20 is inserted into the patient the anvil 40 is opened and the end effector is placed onto tissue at a selected surgical site anvil 40 is closed to clamp tissue between a second clamping surface 41 on the anvil 40 and a first clamping surface 46 on the removable staple cartridge 45 the surgical stapling device 20 is fired stapling the perforated buttress strip 100 onto tissue and severing the tissue and buttress between the staple lines the anvil 40 is opened and the surgical stapling device 20 is withdrawn proximally away from the surgical site as the surgical stapling device 20 is withdrawn the stapled perforated buttress strip 100 remains attached to tissue and the arms 94 of the carrier shell 91 slip out of the openings 101 within the perforated buttress strip 100 releasing the perforated buttress strip 100 from the surgical stapling device 20 to reload the surgical stapling device 20 with a fresh anvil carrier 90 the surgeon must remove the surgical stapling device 20 from the patient next the surgeon removes the spent carrier shell 91 from the anvil 40 by lifting the nose 95 to unlock the retention feature 97 from the anvil 40 and slides the carrier shell 91 off of the anvil 40 a fresh anvil carrier 90 is slid onto the anvil 40 to finish the reloading process.