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1. (WO2018221286) PRESSURE CONTROL DEVICE AND PRESSURE USING DEVICE

Pub. No.:    WO/2018/221286    International Application No.:    PCT/JP2018/019458
Publication Date: Fri Dec 07 00:59:59 CET 2018 International Filing Date: Tue May 22 01:59:59 CEST 2018
IPC: F04B 49/24
A61B 5/022
A61G 7/057
A61M 1/00
A61M 1/06
F04B 45/047
G05D 16/20
Applicants: MURATA MANUFACTURING CO., LTD.
株式会社村田製作所
Inventors: TANAKA Nobuhira
田中 伸拓
OKAGUCHI Kenjiro
岡口 健二朗
Title: PRESSURE CONTROL DEVICE AND PRESSURE USING DEVICE
Abstract:
This pressure control device (10) is provided with a pump (21), a connection pipe (30), a first valve (41), and a second valve (42). The pump (21) has an intake port (211) and a discharge port (212). A first end of the connection pipe (30) communicates with the discharge port (212), and a second end of the connection pipe (30) communicates with the intake port (211). The connection pipe (30) has a first space (31) including the first end, a second space (32) including the second end, and a third space (33) disposed between the first space (31) and the second space (32). The first valve (41) switches between a state in which the first space (31) communicates with the space outside the connection pipe (30), and the first space (31) does not communicate with the third space (33), and a state in which the first space (31) does not communicate with the space outside the connection pipe (30), and the first space (31) communicates with the third space (33). The second valve (42) switches between a state in which the second space (32) communicates with the third space (33), and a state in which the second space (32) does not communicate with the third space (33).