abstract |
There is provided a circular cutting and stapling surgical instrument comprising: a head, comprising: a circular cutting instrument; and a staple cartridge comprising a plurality of staples; an anvil facing the head; and a washer inserted in the anvil such that the washer is between the anvil and the head, wherein the washer comprises an inner portion and an outer portion, and wherein the washer is configured in the anvil such that when the instrument is fired, the cutting instrument cuts the washer such that the inner portion is separated from the outer portion. |