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:
Dec. 15, 2015

Filed:

Dec. 14, 2010
Applicants:

Kunihiko Akita, Shizuoka, JP;

Tomoya Murakami, Shizuoka, JP;

Takayuki Hirano, Shizuoka, JP;

Yasushi Takakuwa, Shizuoka, JP;

Inventors:

Kunihiko Akita, Shizuoka, JP;

Tomoya Murakami, Shizuoka, JP;

Takayuki Hirano, Shizuoka, JP;

Yasushi Takakuwa, Shizuoka, JP;

Assignee:

NIKKISO CO., LTD., Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 11/00 (2006.01); B01D 61/00 (2006.01); C02F 1/44 (2006.01); G01N 21/27 (2006.01); A61M 1/16 (2006.01); G01N 21/59 (2006.01); G01N 21/05 (2006.01);
U.S. Cl.
CPC ...
G01N 21/274 (2013.01); A61M 1/16 (2013.01); A61M 1/1609 (2014.02); G01N 21/59 (2013.01); A61M 2205/3313 (2013.01); G01N 21/05 (2013.01); G01N 2201/0621 (2013.01); G01N 2201/0626 (2013.01);
Abstract

A blood purification apparatus includes a blood purification instrument for extracorporeally circulating blood of a patient and a concentration detector detecting a concentration of liquid flowing during blood purification. The concentration detector has a light emitter irradiating light onto said liquid, a light receiver receiving light from the light emitter transmitted through said liquid, and a detector detecting the received light intensity received by the light receiver. The concentration detector detects the concentration of the liquid based on the received light intensity and can be calibrated by adjusting an amount of irradiation by the light emitter so that the received light intensity has a predetermined value.


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