A surgical tool or applier for deploying an anastomotic ring comprises a handle connected to an elongate shaft that terminates in an anastomotic ring deployment mechanism. The ring deployment mechanism is moveable from an unactuated position to an actuated position. In order to prevent tissue from becoming trapped in the ring deployment mechanism during insertion or extraction of the tool, a plurality of panels are configured to enclose portions of the ring deployment mechanism during insertion and extraction, where the ring deployment mechanism is in the unactuated position. The panels are movable with the ring deployment mechanism to the actuated position, in which the ring deployment mechanism is able to deploy the anastomotic ring.一種用於展開一吻合環的外科手術工具或施用器包含一把手,該把手連接到一終止於一吻合環展開機構的長桿。該環展開機構可從一未啟用位置移到一已啟用位置。為了防止身體組織在該工具插入或抽出期間被困在該環展開機構內,複數個鑲板被建構為在插入及抽出期間包覆該環展開機構之局部,此時該環展開機構係處於該未啟用位置。該等鑲板可隨該環展開機構移到該已啟用位置,在此位置該環展開機構能夠展開該吻合環。10...施用器17...把手18...長桿20...近側端22...遠側端24...環展開機構26...致動器滑件28...致動器滑件30...末梢32...近側鑲板34...遠側鑲板
