Endoscope
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United States of America Patent
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Jan 30, 2018
Grant Date -
Oct 20, 2016
app pub date -
Jun 30, 2016
filing date -
Jun 19, 2014
priority date (Note) -
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status (Latency Note)
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Abstract
An endoscope includes a partition wall to shield an inner side space and an outer side space, a cylindrical body including an internal wall surface coupled to the partition wall to be capable of being water tight, and forming a communication hole communicating with the inner side space, and including a through-hole piercing through the internal wall surface to an outer circumference, a valve body fixed to the communication hole keeping watertightness and including a check valve section opening and closing according to a pressure difference between the inner side space and the outer side space, a first frame body provided on an outer circumference side of the cylindrical body and is capable of operating in an axial direction of the cylindrical body, a second frame body sheathed over the cylindrical body and the first frame body keeping watertightness, and forming a first space communicating with the through-hole.
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