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:
Jul. 06, 2010

Filed:

Dec. 29, 2004
Applicants:

Masayuki Yamada, Toyonaka, JP;

Takeshi Matsumoto, Toyonaka, JP;

Yasuhiro Sando, Amagasaki, JP;

Kusunoki Higashino, Osaka, JP;

Inventors:

Masayuki Yamada, Toyonaka, JP;

Takeshi Matsumoto, Toyonaka, JP;

Yasuhiro Sando, Amagasaki, JP;

Kusunoki Higashino, Osaka, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01N 3/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A microfluidic device for performing a test on the reagent includes a fill port formed on the chip to inject the reagent into at least one of the channels, one or more heating portions for performing a test on the reagent injected into the channel, and a micropump. An inside of the micropump and a vicinity of the channel connecting to an inlet and an outlet of the micropump are filled with a drive solution that is driven by the micropump, a gas is sealed between the reagent and the drive solution in the channel to prevent the reagent from contacting the drive solution directly, and the micropump directly drives the drive solution in the forward and backward directions, so that the reagent is repeatedly moved to the test portions through the gas in an indirect manner or is repeatedly passed through the test portions through the gas.


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