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:
Oct. 07, 2025

Filed:

Jan. 22, 2021
Applicant:

Nederlandse Organisatie Voor Toegepast-natuurwetenschappelijk Onderzoek Tno, 's-Gravenhage, NL;

Inventors:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01L 3/00 (2006.01);
U.S. Cl.
CPC ...
B01L 3/502753 (2013.01); B01L 2200/0621 (2013.01); B01L 2300/0681 (2013.01); B01L 2300/0874 (2013.01); B01L 2300/088 (2013.01); B01L 2400/0487 (2013.01);
Abstract

A microfluidic device for analyzing permeability of substances through a membrane. Flow channels pass respective fluid flows with the substances through the housing between respective connectors. An access cavity extends from outside into the housing through the first flow channel and into the second flow channel for accessing an inside of the housing. The membrane can be placed over a cavity opening forming a fluid interconnection between overlapping areas of the flow channels A clamping ring in the first flow channel holds the sample membrane in place over the cavity opening while the membrane is exposed to the respective fluid flows through the flow channels on either sides of the membrane.


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