FIELD: medical engineering. SUBSTANCE: device has winding fish line with a loop at its end around polype limb base before performing electric exposition. The fish line has knot preventing from its becoming loose. The fish line is fixed in casing having glowing thread connected to steel wire. The steel wire and insulated power cord are placed inside flexible tube with locking member mounted on the end. The fish line with a loop enable endoscopic polypectomy to be performable on polypes of any size. EFFECT: enhanced effectiveness of operation. 3 cl, 1 dwg
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