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:
Jan. 11, 2022

Filed:

Aug. 10, 2017
Applicant:

Sekisui Medical Co., Ltd., Chuo-ku, JP;

Inventors:

Satoshi Machida, Chuo-ku, JP;

Tomohisa Nishio, Chuo-ku, JP;

Kazuo Nakanishi, Chuo-ku, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C12Q 1/37 (2006.01); G01N 33/72 (2006.01); G01N 21/59 (2006.01); G01N 21/31 (2006.01);
U.S. Cl.
CPC ...
C12Q 1/37 (2013.01); G01N 21/31 (2013.01); G01N 21/59 (2013.01); G01N 33/72 (2013.01);
Abstract

Provided is a method of avoiding the influence of a coexisting substance in the measurement of HbA1c % for a whole blood sample by an enzymatic method. Specifically, provided is a method of measuring a ratio of a hemoglobin A1c concentration to a hemoglobin concentration in a sample by an enzymatic method, the method including: a first step of optically measuring the hemoglobin concentration; and a second step of optically measuring the hemoglobin A1c concentration, wherein, when HbA1c % is calculated by dividing the hemoglobin A1c concentration measured in the second step by the hemoglobin concentration measured in the first step, the hemoglobin concentration serving as a denominator, which is measured at a first wavelength, is corrected using a result measured at a second wavelength.


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