The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
May. 03, 2022

Filed:

Jun. 21, 2019
Applicants:

Omron Corporation, Kyoto, JP;

Omron Healthcare Co., Ltd., Muko, JP;

Inventors:

Kenji Fujii, Kyoto, JP;

Naoki Matsumoto, Kyoto, JP;

Yuki Kato, Kyoto, JP;

Assignees:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61B 5/022 (2006.01); A61B 5/02 (2006.01); A61B 5/0285 (2006.01); A61B 5/00 (2006.01); A61B 5/021 (2006.01); A61B 5/0245 (2006.01); A61B 5/053 (2021.01);
U.S. Cl.
CPC ...
A61B 5/02225 (2013.01); A61B 5/02 (2013.01); A61B 5/022 (2013.01); A61B 5/02007 (2013.01); A61B 5/0285 (2013.01); A61B 5/681 (2013.01); A61B 5/6831 (2013.01); A61B 5/0245 (2013.01); A61B 5/02108 (2013.01); A61B 5/02125 (2013.01); A61B 5/053 (2013.01); A61B 5/6824 (2013.01); A61B 5/7275 (2013.01);
Abstract

A belt to be mounted around a measurement site; first pulse wave sensor and second pulse wave sensor mounted on the belt, separated from each other, configured to detect pulse waves in an artery passing through the measurement site; and pressing member mounted on the belt, capable of pressing first pulse wave sensor and second pulse wave sensor against the measurement site while varying pressing force. Time difference between first and second pulse wave signals is acquired as pulse transit time. Blood pressure is calculated based on the pulse transit time acquired by the measurement processing unit by using a predetermined correspondence equation between pulse transit time and blood pressure. Pulse transit time is acquired with the measurement processing unit while pressing force by pressing member is changed in resting state, and corresponding equation is calibrated based on plurality of pulse transit times corresponding to plurality of respective pressing forces.


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