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. 24, 2018

Filed:

Nov. 29, 2012
Applicant:

Wellstat Diagnostics, Llc, Gaithersburg, MD (US);

Inventor:

Jonathan Leland, Gaithersburg, MD (US);

Assignee:

PDL BioPharma, Inc., Incline Village, NV (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61M 1/34 (2006.01); B01D 61/08 (2006.01); B01D 63/08 (2006.01); B01D 61/18 (2006.01); G01N 33/49 (2006.01);
U.S. Cl.
CPC ...
A61M 1/34 (2013.01); A61M 1/341 (2014.02); B01D 61/18 (2013.01); B01D 63/084 (2013.01); G01N 33/491 (2013.01); A61M 2205/75 (2013.01);
Abstract

Provided is a filtration module for separating plasma from blood comprising a feeder channel lid, a feeder channel defined by a feeder channel laminating layer having a thickness of less than 5 mil, a filter element in fluid communication with the feeder channel and having a pore size of less than 2 microns and low surface area, and a filtrate take-off port having a dead volume of less than 10 μI. Also provided is a method for filtering a blood sample comprising supplying the blood sample to a feeder channel of a filtration module and drawing the blood sample over a filter element of the filtration module in a single pass to provide a retentate and a plasma filtrate.


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