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. 11, 2003
Filed:
Feb. 03, 1999
Applicant:
Inventors:
Masahiro Kohno, Tokyo 193-0073, JP;
Shigeru Ohwada, Kawasaki, Kanagawa, JP;
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 3/349 ; G01N 2/410 ; G01N 1/44 ;
U.S. Cl.
CPC ...
G01N 3/349 ; G01N 2/410 ; G01N 1/44 ;
Abstract
A method of judging the redox (oxidation-reduction) in human blood plasma precisely in a short time using electron spin resonance (ESR) spectroscopy is provided. Also, a method of evaluating the functions of human kidneys, judging whether a dialysis is necessary, determining the dialysis time and judging the usefulness of dialysis materials is offered. First, a spin-trapping agent such as PBN is added to a human blood plasma, resulting in hydroxyl radicals in the plasma. The radicals are trapped and converted into a stable spin adduct (PBN-OH). The amount of the spin adduct is measured by an ESR spectrometer.