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.:
Date of Patent:
Jan. 20, 2026
Filed:
Jun. 01, 2021
Applicant:
Fresenius Medical Care Deutschland Gmbh, Bad Homburg, DE;
Inventors:
Dietmar Hansel, Bad Homburg, DE;
Michael Paul, Bad Homburg, DE;
Assignee:
FRESENIUS MEDICAL CARE DEUTSCHLAND GMBH, Bad Homburg, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 69/08 (2006.01); A61M 1/34 (2006.01); B01D 67/00 (2006.01); B01D 69/02 (2006.01); B01D 69/14 (2006.01); B01D 71/44 (2006.01); B01D 71/68 (2006.01);
U.S. Cl.
CPC ...
B01D 69/088 (2013.01); A61M 1/3496 (2013.01); B01D 67/0016 (2013.01); B01D 69/02 (2013.01); B01D 69/144 (2013.01); B01D 71/441 (2022.08); B01D 71/68 (2013.01); B01D 2323/08 (2013.01); B01D 2323/2182 (2022.08); B01D 2325/04 (2013.01); B01D 2325/36 (2013.01); B01D 2325/38 (2013.01);
Abstract
A hollow fiber membrane for separating blood plasma from blood, comprising a blood contact layer and a support layer each comprising a hydrophobic polymer, a hydrophilic polymer and vitamin E, and a method for producing said hollow fiber membrane to provide a hollow fiber membrane is described. The hollow fiber membrane is characterized by a reduced hemolysis activity so that the hollow fiber membrane can be advantageously used in plasmapheresis methods.