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:
Dec. 15, 2020

Filed:

Mar. 26, 2018
Applicant:

Csem Centre Suisse D'electronique ET DE Microtechnique Sa—recherche ET Développement, Neuchâtel, CH;

Inventors:

Josep Sola i Caros, Neuchâtel, CH;

Josef X. Brunner, Chur, CH;

Damien Ferrario, Vevey, CH;

Andrew Adler, Ottawa, CA;

Martin Proenca, Marly, CH;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61B 5/021 (2006.01); A61B 5/024 (2006.01); A61B 5/00 (2006.01); A61B 5/022 (2006.01); A61B 5/029 (2006.01);
U.S. Cl.
CPC ...
A61B 5/02125 (2013.01); A61B 5/0035 (2013.01); A61B 5/02233 (2013.01); A61B 5/02438 (2013.01); A61B 5/02444 (2013.01); A61B 5/0536 (2013.01); A61B 5/029 (2013.01);
Abstract

A method for estimating blood pressure (BP) values comprises: measuring at a first PTT value, a second PTT value, and further PTTref values using a method comprising measuring a first arterial pressure pulse arrival time (PAT) and measuring a second PAT value; calculating a PTT value from the difference between the first PAT value and the second PAT value; processing a sequence of electrical impedance tomography (EIT) images to identify at least one region of interest (ROI); and estimating at least one of the first and second PAT value from the variation of impedance value determined from the at least one ROI. The method allows for the non-invasive and continuous determination of the PB values by using a calibration factor.


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