PROBLEM TO BE SOLVED: To provide a low invasive excised tissue fragment recovery device which suppresses invasion into a living body low, enables recovery operation of excised tissue fragments without interfering excision procedure of living body tissue, and efficiently removes excised tissue fragments without soiling the field of operation by tissue fragment residue etc.SOLUTION: The excised tissue fragment recovery device 100 includes a distal end part 110, a pipe part 120, and a proximal operation mechanism 130, and can be percutaneously introduced into the surgery field same as a laparoscope device. In the field of operation, the opening/closing mechanism of the distal end part 110 enlarges the diameter of a wall face structure 111 with a bellows structure, for instance, to expand a diameter and a surface area (cavity diameter enlarged state). The side wall face of the distal end part 110 is made into a largely opened state (cavity developed state) by folding the bellows structure. A tumor excised by an excision device is successively taken into a cavity 112 inside the distal end part 110. After the opening/closing mechanism closes the opening of the wall face structure 111 at suitable timing to reduce the diameter (cavity diameter reduced and closure state), the excised tissue fragments are transferred to the outside the body from the pipe part 120.COPYRIGHT: (C)2012,JPO&INPIT【課題】 生体への侵襲を小さく抑え、生体組織の切除手技には干渉せずに切除組織片の回収作業を可能とし、組織片残滓などにより術野を汚すことなく切除組織片を効率的に除去する切除組織片回収装置を提供する。【解決手段】 切除組織片回収装置100は、先端部110、管部120、手元操作機構130を備えた構成であり、腹腔鏡装置と同じように経皮的に術野まで導入可能なものとなっている。術野において先端部110の開閉機構は例えば蛇腹構造などを持つ壁面構造物111を拡径して径・表面積を大きくする(キャビティ拡径状態)。先端部110の側壁面は蛇腹構造を折り畳むことで大きく開口した状態(キャビティ展開状態)とする。切除装置が切り取った腫瘍を先端部110の内部のキャビティ112に次々取り入れて行く。適度なタイミングで開閉機構が壁面構造物111の開口を閉じて縮径(キャビティ縮径閉鎖状態)後、管部120から体外へ移送する。【選択図】 図5
