| 摘要 |
PROBLEM TO BE SOLVED: To obtain the changeover dial for the suction channels of an endoscope, having a simple structure capable of being manufactured inexpensively. SOLUTION: The changeover dial for the suction channels of the endoscope is equipped with an attaching member detachable to the opening part of a hollow space for connecting two treatment-tool insertion channels, a changeover operation member supporting the channel changeover valve for enabling a suction source to communicate with two treatment-tools insertion channels or cutting off the same from the treatment-tool insertion channels, the click recessed part and click projected part formed to one of the changeover operation member, which locks the changeover operation member at a plurality of different rotary positions and unlocks the same by the axial movement of the changeover operation member, and the attaching member and to the other one of them and an energizing member for energizing the changeover operation member in the locking direction of the click recessed part and the click projected part. COPYRIGHT: (C)2003,JPO
|
