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. 05, 2023

Filed:

Jul. 06, 2022
Applicant:

Capitainer Ab, Solna, SE;

Inventors:

Gabriel Lenk, Freiburg, DE;

Anna Ohlander, Stockholm, SE;

Assignee:

CAPITAINER AB, Solna, SE;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01L 3/00 (2006.01); B01L 9/00 (2006.01);
U.S. Cl.
CPC ...
B01L 3/502753 (2013.01); B01L 3/50273 (2013.01); B01L 3/502738 (2013.01); B01L 9/527 (2013.01); B01L 2200/0605 (2013.01); B01L 2200/0684 (2013.01); B01L 2300/0681 (2013.01); B01L 2300/0867 (2013.01); B01L 2300/126 (2013.01); B01L 2400/0406 (2013.01); B01L 2400/0457 (2013.01);
Abstract

A microfluidic device comprising: an inlet section, for receiving a body fluid sample, the inlet section comprising an inlet port arranged to receive a supply of body fluid; a metering function configured to receive body fluid from the inlet section and comprising a first channel; and a sequent section configured to receive the body fluid from the metering function and comprising a second channel, wherein the first channel comprises a capillary stop valve configured to interrupt or reduce flow of the body fluid therethrough, and a means for visual inspection arranged adjacent to the capillary stop valve, wherein a geometry and/or dimension of the inlet port is configured such that when the supply of body fluid to the inlet port is removed, the Laplace pressure of a body fluid meniscus at the inlet port is higher than a threshold pressure of the capillary stop valve.


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