| 摘要 |
PROBLEM TO BE SOLVED: To provide a highly safe high-frequency incising tool for an endoscope which is capable of incising an internal tissue to a desired depth by exactly controlling the degree of bending of the distal end segment of a flexible tube which is bent by pulling a conductive wire. SOLUTION: The high-frequency incising tool is constituted by forming a pair of holes 3 apart a spacing in a longitudinal direction near the distal end of the flexible tube 1 having an electrical insulation characteristic, passing the conductive wire 2 inserted and arranged in the flexible tube 1 through a pair of the holes 3 and arranging the wire on the outside of the flexible tube 1 in the segment between the same and is constituted to bend the distal end segment of the flexible tube 1 between a pair of the holes 3 by pulling the conductive wire 2 from the operator side. A notched groove 5 of a V shape of the depth to cross the inner diameter of the flexible tube 1 approximately from the perpendicular direction to the axis of the flexible tube 1 is formed in the position between a pair of the holes 3 of the flexible tube 1 and the holes 3. |
