| 摘要 |
PROBLEM TO BE SOLVED: To provide the lading end structure of the insertion part of an endoscope capable of simply attaching and detaching a nozzle-integrated cap and capable of preventing the erroneous mounting of the nozzle-integrated cap. SOLUTION: In this electronic endoscope 1 wherein the nozzle-integrated cap 70 equipped with an air feed nozzle 71 and a water feed nozzle 72 communicating with an air feed hole 33 and a water feed hole 43 both which are used for washing an object optical system and bending both holes 33 and 44 toward the object optical system 15 is mounted on the leading end 11 of the insertion part having the air feed hole 33 and the water feed hole 43 opened therein, a first screw part 73 is formed to the inner peripheral part of the nozzle-integrated cap 70 and the second screw part 11a threaded with the first screw part 73 is formed to the outer peripheral part of the leading end 11 of the insertion part to make the nozzle-integrated cap 70 freely attachable detachable with respect to the leading end 11 of the insertion part by threading the first and second screw parts 73 and 11a mutually. COPYRIGHT: (C)2004,JPO&NCIPI
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