| 摘要 |
PROBLEM TO BE SOLVED: To maintain the smooth operation of a tip chip by forming a drain path communicating to the middle part of a connection hole at a treating tool raising-up table in the connection hole capable of freely rotatably inserting the tip chip, so as to reduce influence by mucus, excreta liquid, or the like, in a celom. SOLUTION: At the treating tool raising-up table 10, the drain path 20 in the shape of a hole communicating to the middle part of the connection hole 16 is formed at a position which does not interfere with a treating tool passing surface 10a. Consequently, even when the mucus, excreta liquid, or the like, in the celom enter the fitting part of the tip chip 15 and the connection hole 16, they are discharged from the path 20. Thus, since washing water which gets into and out from the path 20 easily gets into and out from the fitting part at the time of washing the endoscope after using, the tip chip 15 is not fixed in the hole 16. As a result of it, the tip chip 15 is always freely rotated in the hole 16 by following the back-forth moving operation of an operation wire 13 to make the wire 13 and the table 10 in the state of being connected in a proper direction reducing the transmitting loss of force, thereby the table 10 operates smoothly. |
