PRESSURE CONTROL DEVICE AND PRESSURE USING DEVICE

Title:

PRESSURE CONTROL DEVICE AND PRESSURE USING DEVICE

Document Type and Number:

WIPO Patent Application WO/2018/221286

Kind Code:

A1

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).

Inventors:

TANAKA NOBUHIRA (JP)
OKAGUCHI KENJIRO (JP)

Application Number:

PCT/JP2018/019458

Publication Date:

December 06, 2018

Filing Date:

May 21, 2018

Export Citation:

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Assignee:

MURATA MANUFACTURING CO (JP)

International Classes:

F04B49/24; A61B5/022; A61G7/057; A61M1/00; A61M1/06; F04B45/047; G05D16/20

Domestic Patent References:

WO2016039083A1

2016-03-17

Foreign References:

JPH04119373U	1992-10-26
JP2013213421A	2013-10-17
US4838768A	1989-06-13
JP2010203349A	2010-09-16

Other References: