| 摘要 |
<P>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. <P>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, and to allow the liquid flow which has been used for cleaning to promptly move to the outside of the observation window 50. <P>COPYRIGHT: (C)2012,JPO&INPIT |
