| 摘要 |
PURPOSE:To prevent the bending of a knife for incision and the disabling of the knife to stick out otherwise caused by a forceps erecting device when the forceps erecting device is operated by arranging a second stopper member for regulating a retraction final end of the knife at a specified position in a flexible tube from the tip thereof. CONSTITUTION:In a high frequency incision apparatus 1, knife 6 already sticks out of the tip of an endoscope 25 when a forceps erecting device 28 starts an erecting operation as a second stopper member 5 is positioned at a point within 20mm from the tip of a flexible tube 2, and hence, there is limited possibility of bending the knife 6 with the forceps erecting device 28. In addition, there is no operation of the forceps erecting device 28 ahead of the knife 6, and thus, there is no possibility that the knife 6 may be caught at the bending part 28a of the forceps erecting device 28, thereby disabling the protrusion thereof from the tip of the high-frequency incision apparatus 1. |
