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:
Mar. 10, 2026

Filed:

Jul. 06, 2022
Applicant:

Capitainer Ab, Solna, SE;

Inventors:

Anna Ohlander, Stockholm, SE;

Gabriel Lenk, Freiburg, DE;

Assignee:

Capitainer AB, Solna, SE;

Attorney:
Primary Examiner:
Assistant 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 multilayer microfluidic device comprising: an inlet section comprising an inlet port and configured to transport and access the sample to a flat, laterally extending filtration membrane; a metering section, comprising an extraction chamber configured to receive an extracted body fluid from the filtration membrane and arranged in fluid communication with a metering channel; and an outlet section comprising a capillary means for collection of the metered volume of body fluid, wherein a roof of the extraction chamber is defined by a flat lower surface of the filtration membrane, and a floor of the extraction chamber is continuous with a floor of the metering channel and extends at an acute angle from the lower surface of the filtration membrane, and wherein the floor of the extraction chamber is inclined with respect to the floor of the metering channel to create a slope.


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