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:
Mar. 14, 2017
Filed:
Oct. 22, 2013
Applicant:
Nihon Kohden Corporation, Tokyo, JP;
Inventors:
Assignee:
NIHON KOHDEN CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61B 5/0205 (2006.01); A61B 5/029 (2006.01); A61B 5/021 (2006.01); A61B 5/08 (2006.01); A61B 5/0215 (2006.01); A61B 5/022 (2006.01);
U.S. Cl.
CPC ...
A61B 5/029 (2013.01); A61B 5/0205 (2013.01); A61B 5/02108 (2013.01); A61B 5/02125 (2013.01); A61B 5/0816 (2013.01); A61B 5/022 (2013.01); A61B 5/0215 (2013.01);
Abstract
Method for measuring a blood volume is provided. At least two types of respiratory variation data; for instance, data pertinent to respiratory variations in stroke volume (SVV) data, data pertinent to respiratory variations in an amplitude of a pulse wave (PAV), a pulse wave transit time (PWTT) in a respiratory cycle, and a heart rate (HR) in a predetermined time, are measured, and patient's inherent coefficients α, β, and K are calculated, whereby a cardiac output can be determined by an equation CO=K (α*PWTT+β)*HR.