ELECTRONIC VALVE, SPHYGMOMANOMETER, BLOOD PRESSURE MEASURING METHOD, AND APPARATUS

WIPO Patent Application WO/2019/159639

A1

This electronic valve is provided with a yoke (3), a pole piece (4), a solenoid coil (7), and a diaphragm (6). The pole piece (4) has a first fluid input/output port (11) communicating with an opening (4o). A biasing part (5) biases the diaphragm (6) away from one end section (4e) of the pole piece (4). When not in operation, the electronic valve becomes an open state in which an opening (4o) is open. During operation, the electronic valve can become a closed state in which the diaphragm (6) approaches the one end section (4e) of the pole piece (4) due to the magnetic force of the solenoid coil (7) such that the opening (4o) is blocked. The diaphragm (6) extends in a spatially continuous manner from the center toward the edge so as to cover the entire periphery of the peripheral end surface (4e1) of the pole piece (4), or the entire periphery of an annular edge (3e) of the yoke (3). In the closed state, the inner surface (6b) of the diaphragm (6) is in close contact with the peripheral end surface (4e1) of the pole piece (4) or with the annular edge (3e) of the yoke (3).

WO/2001/098696	FLOW CONTROL VALVE AND SPHYGMOMANOMETER
JP6018422	The pressurization pump for sphygmomanometers
WO/2021/025885	A PRESSURE CUFF FOR USE IN A NON-INVASIVE BLOOD PRESSURE MEASUREMENT DEVICE

SANO YOSHIHIKO (JP)
NISHIOKA TAKANORI (JP)

PCT/JP2019/002302

August 22, 2019

January 24, 2019

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OMRON HEALTHCARE CO LTD (JP)

A61B5/0235; A61B5/022; F16K1/36; F16K31/06; H01F7/16

DE3424913A1	1986-01-16
JPS51117489U	1976-09-24
CN204327994U	2015-05-13
JP2006242232A	2006-09-14
JPH10238647A	1998-09-08
JPH0685979U	1994-12-13
JPH0467838A	1992-03-03
JPH04250133A	1992-09-07

YAMAO, Norihito et al. (JP)

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