| 摘要 |
PROBLEM TO BE SOLVED: To select and execute both of fluid control by a mechanical valve and a solenoid valve unit with one system device and to assure the interchangeability between both systems. SOLUTION: Both of, for example, a mechanical suction operating body 28 and an electric type suction operating body 29 having a switch 38 for opening and closing the solenoid valve of the endoscope for controlling the opening and closing of various kinds of pipelines are made freely attachably and detachably mountable at a receiving port of a receiving part 30 disposed at a case body 44 of an endoscope operation part. Also, this operating part 30 is provided with electrodes 46A and 46B to which electrodes 41A and 41B of the electric type suction operating body 29 are connected. These electrodes 46 are connected via signal lines 27 to the solenoid valve unit. The same holds true for the case of air feeding/water feeding. As a result, the fluid control by the mechanical valve and the fluid control using the solenoid valve unit may be selectively carried out.
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