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1. (WO2018042726) ENDOSCOPE

Pub. No.:    WO/2018/042726    International Application No.:    PCT/JP2017/008944
Publication Date: Fri Mar 09 00:59:59 CET 2018 International Filing Date: Wed Mar 08 00:59:59 CET 2017
IPC: A61B 1/00
G02B 23/24
Inventors: HIRONO Takayoshi
廣野 孝祐
This endoscope is provided with: an insertion section 2 adapted to be inserted into a subject; an operation section 3 interconnected with the proximal end side of the insertion section; a hard partition wall 21 provided inside the insertion section or inside the operation section and maintaining the watertightness between a first space S1 which includes the inside of the insertion section and a second space S2 which is formed on the proximal end side of the first space; and a first check valve 22 which is provided to the partition wall, allows gas to flow from the first space to the second space, and blocks the flow of gas from the second space to the first space.