| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a rigid endoscope which is equipped with a fluid pipeline and which can improve operability. <P>SOLUTION: The base end of a handy operation part 20 of the rigid endoscope is provided with a ferrule 50, and a leading end of the fluid pipeline 48 is connected to the ferrule 50. A cleaning fluid supply device comprising a water tank and a CO<SB POS="POST">2</SB>cylinder is connected to the base end of the fluid pipeline 48. An illumination window 66 and observation windows 68 and 68 are cleaned by a cleaning fluid. Additionally, the axial direction of the ferrule 50 and that of a rigid portion of an insertion portion 22 are set parallel to each other, preferably, identical direction to each other, so as to improve the operability. The fluid pipeline is connected to the CO<SB POS="POST">2</SB>cylinder via a switching valve, and the illumination window 66 and the observation windows 68 and 68 are dried by CO<SB POS="POST">2</SB>gas. Furthermore, a base end tube portion 44 gripped by an operator and a flange portion 46 are provided on the base end side of the handy operation part 20 so as to prevent the operator from accidentally crushing the fluid pipeline 48, which is connected to the ferrule 50, in his/her fist. <P>COPYRIGHT: (C)2012,JPO&INPIT |
