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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.

Patent No.:

US 12064270 B1

PDFFull Text
Date of Patent:
Aug. 20, 2024

Filed:

Dec. 22, 2021

Apparatus for blood pressure estimation using photoplethysmography and contact pressure

Applicant:

Samsung Electronics Co., Ltd., Suwon-si, KR;

Inventors:

Jae Min Kang, Seoul, KR;

Yong Joo Kwon, Yongin-si, KR;

Seung Woo Noh, Seongnam-si, KR;

Sang Yun Park, Hwaseong-si, KR;

Assignee:

SAMSUNG ELECTRONICS CO., LTD., Suwon-si, KR;

Attorney:

Sughrue Mion, PLLC

Primary Examiner:

Patrick Fernandes

Assistant Examiner:

Marjan Saboktakin

Int. Cl.
CPC ...
A61B 5/00 (2006.01); A61B 5/02 (2006.01); A61B 5/021 (2006.01); A61B 5/022 (2006.01); A61B 5/024 (2006.01); A61B 5/026 (2006.01); A61B 5/029 (2006.01); A61B 5/145 (2006.01); G16H 10/00 (2018.01); G16H 40/63 (2018.01); G16H 50/20 (2018.01); G16H 50/50 (2018.01);
U.S. Cl.
CPC ...
A61B 5/7278 (2013.01); A61B 5/02007 (2013.01); A61B 5/02108 (2013.01); A61B 5/02116 (2013.01); A61B 5/02125 (2013.01); A61B 5/022 (2013.01); A61B 5/0261 (2013.01); A61B 5/029 (2013.01); A61B 5/14532 (2013.01); A61B 5/681 (2013.01); A61B 5/6831 (2013.01); A61B 5/6843 (2013.01); G16H 10/00 (2018.01); G16H 40/63 (2018.01); G16H 50/20 (2018.01); G16H 50/50 (2018.01); A61B 5/02416 (2013.01); A61B 2562/0219 (2013.01); A61B 2562/0247 (2013.01); A61B 2562/0252 (2013.01);
Abstract

An apparatus for estimating cardiovascular information includes: a main body; and a strap connected to the main body and formed to be flexible to be wrapped around an object, wherein the main body may include: a pulse wave measurer configured to measure, from the subject, a first pulse wave signal by using a first light of a first wavelength, and a second pulse wave signal by using a second light of a second wavelength, the first wavelength being different from the second wavelength; a contact pressure measurer configured to measure a contact pressure between the object and the pulse wave measurer; and a processor configured to extract a cardiovascular characteristic value based on the first pulse wave signal, the second pulse wave signal, and change in the contact pressure, and estimate cardiovascular information based on the extracted cardiovascular characteristic value.

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