| 摘要 |
PROBLEM TO BE SOLVED: To provide an endoscope which is capable of letting a liquid drain off to a satisfactory level at the time of cleaning, while securing the degree of freedom of a layout.SOLUTION: An observation window 50 is placed on an observation window base part 60 which is formed on a distal end surface 26a of a distal end part 26 so as to protrude from the surrounding area. An outer peripheral shape of the observation window base part 60 is formed into a streamline shape with respect to a flow of a cleaning fluid jetted from a nozzle 58. With this feature, it is possible to block a liquid flow having a low flow rate from flowing on the observation window 50. |
