| 摘要 |
Provided is a rigid endoscope including a fluid pipe line, in which the operability can be improved. A ferrule 50 is provided in a base end part of a hand-side operation part 20 of a rigid endoscope 10, and a leading end part of a fluid pipe line 48 is connected to the ferrule 50. In addition, a cleaning water supply apparatus including a water supply tank 70 and a CO 2 cylinder 76 is connected to a base end part of the fluid pipe line 48, and an observation window 66 and illumination windows 68, 68 are cleaned with cleaning water. Further, the axial direction of the ferrule 50 and the axial direction of a rigid part 28 of an insertion part 22 are set to be parallel to each other, preferably, the same direction, whereby the operability is enhanced. The CO 2 cylinder 76 is connected via a diverter valve 72, and the observation window 66 and the illumination windows 68, 68 are dried with a CO 2 gas. In addition, a base end pipe part 44 to be gripped by an operator and a flange part 46 are provided on the base end side of the hand-side operation part 20, to thereby prevent the fluid pipe line 48 connected to the ferrule 50 from being crushed by the operator by mistake.
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