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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.

Patent No.:

US 12269034 B1

PDFFull Text
Date of Patent:
Apr. 08, 2025

Filed:

Nov. 28, 2019

Vacuum-assisted drying of filters in microfluidic systems

Applicant:

Quantumdx Group Limited, Newcastle upon Tyne, GB;

Inventors:

Hojjat Madadi, Newcastle upon Tyne, GB;

Robin Page, Newcastle upon Tyne, GB;

Molly Rose Jowsey, Newcastle upon Tyne, GB;

Thomas Michael Willshare, Newcastle upon Tyne, GB;

Roberts Rimsa, Newcastle upon Tyne, GB;

Assignee:

QUANTUMDX GROUP LIMITED, Newcastle Upon Tyne, GB;

Attorney:

Knobbe, Martens, Olson & Bear, LLP

Primary Examiner:

Jennifer Wecker

Assistant Examiner:

Oyeleye Alexander Alabi

Int. Cl.
CPC ...
B01L 3/00 (2006.01); A47L 15/42 (2006.01); A61L 27/16 (2006.01); A61L 27/56 (2006.01); B01F 23/00 (2022.01); B01F 23/41 (2022.01); B01F 101/23 (2022.01); B01L 7/00 (2006.01); B01L 9/00 (2006.01); B23Q 17/24 (2006.01); C07K 14/705 (2006.01); C08F 220/56 (2006.01); C12M 1/34 (2006.01); C12Q 1/04 (2006.01); C12Q 1/18 (2006.01); C12Q 1/6844 (2018.01); C12Q 1/686 (2018.01); G01N 1/31 (2006.01); G01N 21/17 (2006.01); G01N 21/3577 (2014.01); G01N 21/359 (2014.01); G01N 21/39 (2006.01); G01N 21/45 (2006.01); G01N 21/64 (2006.01); G01N 21/77 (2006.01); G01N 21/78 (2006.01); G01N 27/414 (2006.01); G01N 30/12 (2006.01); G01N 30/68 (2006.01); G01N 30/70 (2006.01); G01N 30/72 (2006.01); G01N 30/88 (2006.01); G01N 33/00 (2006.01); G01N 33/18 (2006.01); G01N 33/50 (2006.01); G01N 33/53 (2006.01); G01N 33/543 (2006.01); G01N 33/68 (2006.01); G01N 33/74 (2006.01); G01N 35/00 (2006.01); G01N 35/04 (2006.01); G01N 35/10 (2006.01); G06T 7/00 (2017.01); G06T 7/90 (2017.01); G16H 20/60 (2018.01); G16H 40/63 (2018.01); H10K 10/46 (2023.01); H10K 85/00 (2023.01); H10K 85/20 (2023.01);
U.S. Cl.
CPC ...
B01L 3/502753 (2013.01); B01L 3/50273 (2013.01); B01L 2200/0621 (2013.01); B01L 2300/0681 (2013.01); B01L 2300/0816 (2013.01); B01L 2400/0481 (2013.01); B01L 2400/0633 (2013.01);
Abstract

Improved methods and devices using reduction of pressure for removing ethanol from filters in a fluidic or microfluidic system in point of care devices involve filters that are solid state extraction filters used to capture and/or concentrate nucleic acids prior to further downstream processing such as amplification by polymerase chain reaction. The method uses the induction of negative pressure with respect to atmospheric pressure to improve the efficiency of the ethanol removal process.

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