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:
May. 08, 2012
Filed:
Mar. 09, 2007
Clark R. Baker, Jr., Newman, CA (US);
Nicholas J. Durr, Austin, TX (US);
Murtaza Mogri, Stanford, CA (US);
Carine Hoarau, Lafayette, CA (US);
Rafael Ostrowski, Pittsburg, CA (US);
Martin P. Debreczeny, Danville, CA (US);
Clark R. Baker, Jr., Newman, CA (US);
Nicholas J. Durr, Austin, TX (US);
Murtaza Mogri, Stanford, CA (US);
Carine Hoarau, Lafayette, CA (US);
Rafael Ostrowski, Pittsburg, CA (US);
Martin P. Debreczeny, Danville, CA (US);
Nellcor Puritan Bennett LLC, Boulder, CO (US);
Abstract
Methods and systems for calculating body fluid metrics are provided. In accordance with an exemplary embodiment of the present technique, there is provided a method for calculating body fluid metrics by acquiring an absorbance spectrum of a subject's tissue over a range of near-infrared light, performing a multi-linear regression of the absorbance spectrum of the subject's tissue in relation to absorbance spectra of tissue constituents, and calculating body fluid metrics based on the results of the multi-linear regression. A system is provided having a sensor for emitting the light into the subject's tissue and detecting reflected, scattered, or transmitted light, a spectrometer for processing the detected light and generating the absorbance spectrum of the subject's tissue, memory for storing absorbance spectra of the tissue constituents and a multi-linear regression model, and a processor for performing the multi-linear regression and calculating the body fluid metrics.