Title:
MEASURING DEVICE, AND ANTENNA SET
Document Type and Number:
WIPO Patent Application WO/2022/209270
Kind Code:
A1
Abstract:
Provided are a measuring device and an antenna set capable of suppressing reception of electromagnetic waves other than electromagnetic waves that have been transmitted through a heart. A cardiac output measuring sensor 100 is provided with: an antenna set including a transmission antenna 12 and a reception antenna 21; and a calculating unit 32. The transmission antenna 12 is installed facing a heart 91 on one of a chest side and a back side of a subject 90. The reception antenna 21 is installed facing the heart on the other of the chest side and the back side of the patient, and receives transmitted waves, being electromagnetic waves that have been emitted from the transmission antenna and that have been transmitted through the living body of the subject. The calculating unit calculates a blood volume on the basis of the transmitted waves. Each of the transmission antenna and the reception antenna includes a substrate on which an antenna surface including an antenna element is installed, and a ground surface on the opposite side of the substrate to the antenna surface, wherein a surface area of the ground surface of a back side antenna installed on the back side of the patient, from among the antenna set, is greater than a surface area of the ground surface of a chest antenna installed on the chest side of the patient.
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Inventors:
HONDA KEI (JP)
SONE ATSUSHI (JP)
SUDA SHINICHIRO (JP)
YABE RYOTARO (JP)
NISHIKIDO TOMOAKI (JP)
SONE ATSUSHI (JP)
SUDA SHINICHIRO (JP)
YABE RYOTARO (JP)
NISHIKIDO TOMOAKI (JP)
Application Number:
PCT/JP2022/004183
Publication Date:
October 06, 2022
Filing Date:
February 03, 2022
Export Citation:
Assignee:
TERUMO CORP (JP)
International Classes:
H01Q7/00; A61B5/029; A61B5/0507; H01Q13/08; H01Q21/06
Domestic Patent References:
| WO2018194093A1 | 2018-10-25 | |||
| WO2018189970A1 | 2018-10-18 | |||
| WO2020017602A1 | 2020-01-23 | |||
| WO2021066020A1 | 2021-04-08 |
Foreign References:
| JP2016202516A | 2016-12-08 | |||
| JP2020151458A | 2020-09-24 | |||
| CN105832331A | 2016-08-10 | |||
| JP2014131199A | 2014-07-10 | |||
| JP2006121406A | 2006-05-11 |
Attorney, Agent or Firm:
HATTA & ASSOCIATES (JP)
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