| 摘要 |
PROBLEM TO BE SOLVED: To collectively recovery multiple polyp without pulling out or re-inserting a colonofiberscopy. SOLUTION: The polyp collective recovery net is provided with a recovery net 12 for soft polyp, an annular ring 16 composed of an extremely fine thread let to annularly pass in an opening end side of the net, an extremely fine thread 18 having one end connected to a part of the annular ring and the other end extending long, net fixing tools 20 and 20' slidably attached to the extremely fine thread, and a flexible first sheath 22 through which the other end of the extremely fine thread is passed and which has the diameter smaller than the net fixing tool. The first sheath is disposed in the second sheath, a snare with divided tip is let to pass through the opening end side of the recovery net, and the opening end side of the recovery net is held in an opened state. COPYRIGHT: (C)2004,JPO
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