US 12,138,025 B2
Blood pressure measurement device and cuff unit
Tatsuya Kobayashi, Kyoto (JP); Yohei Asano, Kyoto (JP); Yasuhiro Kawabata, Kyoto (JP); Hideyuki Yamashita, Kyoto (JP); and Akito Ito, Kyoto (JP)
Assigned to OMRON HEALTHCARE CO., LTD., Kyoto (JP)
Filed by OMRON HEALTHCARE Co., Ltd., Kyoto (JP)
Filed on Jan. 14, 2021, as Appl. No. 17/148,921.
Application 17/148,921 is a continuation of application No. PCT/JP2019/026088, filed on Jul. 1, 2019.
Claims priority of application No. 2018-136925 (JP), filed on Jul. 20, 2018.
Prior Publication US 2021/0127996 A1, May 6, 2021
Int. Cl. A61B 5/22 (2006.01); A61B 5/021 (2006.01); A61B 5/022 (2006.01); A61B 5/0235 (2006.01)
CPC A61B 5/02233 (2013.01) [A61B 5/0235 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A blood pressure measurement device comprising:
a cuff comprising a bag body including an internal space in which first fluid is disposed, the cuff being configured to be wrapped around a living body;
a device body comprising a pressure sensor configured to detect pressure of the first fluid in a flow path portion communicating with the internal space of the bag body;
a first tube constituting a first flow path through which the first fluid passes, the first tube including a first end side connected to the bag body and a second end side connected to the device body;
a second tube disposed in the first flow path in the first tube and constituting a second flow path through which second fluid passes;
a water head pressure bag provided in a first end side of the second tube and accommodating the second fluid, the water head pressure bag being attached to the cuff; and
a water head pressure sensor provided in a second end side of the second tube and configured to detect pressure of the second fluid.