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.:
Date of Patent:
Oct. 31, 2023
Filed:
Apr. 13, 2021
Applicant:
Hemocept Inc., Seattle, WA (US);
Inventors:
Eric Raman, Seattle, WA (US);
Kevin Peterson, Mountain View, CA (US);
Iain Hueton, Salt Lake City, UT (US);
Assignee:
HEMOCEPT INC., Seattle, WA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61B 5/352 (2021.01); A61B 5/00 (2006.01); A61B 5/145 (2006.01); A61B 5/024 (2006.01); A61B 5/366 (2021.01); G16H 40/63 (2018.01); A61B 5/349 (2021.01); A61B 5/282 (2021.01); A61B 5/0205 (2006.01); A61B 5/1455 (2006.01); A61B 5/0245 (2006.01);
U.S. Cl.
CPC ...
A61B 5/7285 (2013.01); A61B 5/004 (2013.01); A61B 5/0006 (2013.01); A61B 5/0036 (2018.08); A61B 5/024 (2013.01); A61B 5/0205 (2013.01); A61B 5/14 (2013.01); A61B 5/14552 (2013.01); A61B 5/282 (2021.01); A61B 5/349 (2021.01); A61B 5/366 (2021.01); A61B 5/4839 (2013.01); A61B 5/6823 (2013.01); A61B 5/6831 (2013.01); A61B 5/6833 (2013.01); G16H 40/63 (2018.01); A61B 5/0245 (2013.01); A61B 5/02427 (2013.01); A61B 2560/0223 (2013.01); A61B 2562/146 (2013.01);
Abstract
A system using combined electrocardiography (EKG) and photoplethysmography (PPG) sensing to assess intra-arterial fluid volume is described. The system uses averaging of similar pulses based on prior (n−1; n minus 1) R-to-R pulse wave duration, and prior-prior (n−2; n minus 2) R-to-R pulse wave duration, to determine a patient's fluid status and whether it is below or above optimal intravascular hydration.