| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a water delivery path of an endoscope having a water nozzle which is opened and mounted toward the surface of an observation window mounted on the tip of an inserting part with difficulty of watering from the water nozzle caused by gravitational influence. Ž<P>SOLUTION: A plurality of small holes 15 line to penetrate through a water flow penetration plate 14, and it is arranged in water tube paths 13, 23 near the tip of the inserting part 1, and a cross-section area (s) of each small hole 15 is smaller than the opening area (Sn) of the water nozzle 9, and the sum (Σs) of cross-section areas of all small holes 15 is larger than the opening area (Sn) of the water nozzle 9. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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