| 摘要 |
PROBLEM TO BE SOLVED: To provide a feed water device for an endoscope capable of easily washing a part from the inside of a feed water pipe to the inside of a feed water port causing no problem in control of feed water amount to the endoscope. SOLUTION: A feed water passage valve 15 which is closed when a feed water port 5 is not connected to a feed water socket base 25 and forcedly opened when the feed water port 5 is connected with the feed water socket base 25 is provided in the feed water port 5. A differential pressure opening/ closing valve 18 is provided within the feed water port 5. The valve 18 is opened to communicate a feed water pipe 3 with the feed water port 5 when the feed water port 5 is connected with the feed water socket base 25, and is normally closed to block the feed water pipe 3 and the feed water port 5 when the feed water port 5 is not connected with the feed water socket base 25. When a fixed differential pressure or more is generated between inside of the feed water pipe 3 and inside of feed water port 5, the valve 18 is opened to communicate the feed water pipe 3 with the feed water port 5.
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