Title:
BLOOD PRESSURE ESTIMATION DEVICE AND CALIBRATION METHOD FOR BLOOD PRESSURE ESTIMATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/085278
Kind Code:
A1
Abstract:
The present invention allows for highly accurate blood pressure estimation based on circulatory organ-related feature amount. Provided is a blood pressure estimation device comprising: a blood pressure estimation unit that acquires a circulatory organ-related feature amount and that calculates a blood pressure value from the circulatory organ-related feature amount, the circulatory organ-related feature amount being a feature amount that is related to the state of a circulatory organ and that changes in accordance with the beating of the heart; and a reference blood pressure measurement unit that includes a sound wave detection unit for detecting Korotkoff sound generated in accordance with the beating, and that measures a reference blood pressure value using the Korotkoff sound. The blood pressure estimation device is characterized in that the blood pressure estimation unit includes: a feature amount acquisition unit for acquiring the circulatory organ-related feature amount; a correspondence relationship determination unit for determining the correspondence relationship between the reference blood pressure value and the acquired value of the circulatory organ-related feature amount corresponding to a specific beat corresponding to the Korotkoff sound with which the reference blood pressure value has been measured in the beating; and an estimated blood pressure acquisition unit for calculating the blood pressure value from the circulatory organ-related feature amount on the basis of the correspondence relationship.
Inventors:
ITO AKITO (JP)
KAWABATA YASUHIRO (JP)
FUJII KENJI (JP)
MATSUMURA NAOMI (JP)
SAKAGUCHI YUKI (JP)
KAWABATA YASUHIRO (JP)
FUJII KENJI (JP)
MATSUMURA NAOMI (JP)
SAKAGUCHI YUKI (JP)
Application Number:
PCT/JP2022/041590
Publication Date:
May 19, 2023
Filing Date:
November 08, 2022
Export Citation:
Assignee:
OMRON HEALTHCARE CO LTD (JP)
International Classes:
A61B5/02; A61B5/022
Foreign References:
| JPH08191805A | 1996-07-30 | |||
| JP2014000105A | 2014-01-09 | |||
| CN107126201A | 2017-09-05 | |||
| JP2007244605A | 2007-09-27 |
Attorney, Agent or Firm:
IP FIRM SHUWA (JP)
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