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:
Aug. 06, 2002

Filed:

Jan. 07, 2000
Applicant:
Inventors:

Yongdong Wang, Wilton, CT (US);

David H. Tracy, Norwalk, CT (US);

Paul G. Saviano, Norwalk, CT (US);

Alan M. Ganz, Scarsdale, NY (US);

Koichi Nishikida, Newtown, CT (US);

Gitesh Kumar, Norwalk, CT (US);

Assignee:

PerkinElmer Instruments LLC, Shelton, CT (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N 3/100 ;
U.S. Cl.
CPC ...
G01N 3/100 ;
Abstract

Constituents such as oxy- and deoxy-hemoglobin are monitored non-invasively in an animal organ such as a brain with a spectrometric instrument by passing radiation through the organ. Concentrations are computed from the spectral intensities and from a statistical correlation model. To predetermine the correlation model, the procedures are effected for a plurality of organs of a same type with each organ having established concentrations of the selected constituents, and the correlation model is statistically determined from the concentrations and corresponding intensities. For more accuracy computations are normalized to path length which may be determined by utilizing several discrete wavelengths with RF modulations.


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