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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 11058795 B1

PDFFull Text
Date of Patent:
Jul. 13, 2021

Filed:

Jan. 19, 2017

Semipermeable membrane and method of manufacturing the same

Applicant:

Kuraray Co., Ltd., Kurashiki, JP;

Inventors:

Masako Kawagoe, Chiyoda-ku, JP;

Kiyofumi Enomoto, Kurashiki, JP;

Assignee:

KURARAY CO., LTD., Kurashiki, JP;

Attorney:

Oblon, McClelland, Maier & Neustadt, L.L.P.

Primary Examiner:

James C Goloboy

Int. Cl.
CPC ...
A61L 27/16 (2006.01); A61L 27/18 (2006.01); B01D 71/76 (2006.01); B01D 71/10 (2006.01); B01D 71/50 (2006.01); A61F 2/02 (2006.01); B01D 71/68 (2006.01); B01D 71/42 (2006.01); B01D 71/56 (2006.01); A61L 27/20 (2006.01); B01D 67/00 (2006.01); B01D 71/38 (2006.01); B01D 71/26 (2006.01);
U.S. Cl.
CPC ...
A61L 27/16 (2013.01); A61F 2/02 (2013.01); A61L 27/18 (2013.01); A61L 27/20 (2013.01); B01D 67/0016 (2013.01); B01D 71/10 (2013.01); B01D 71/42 (2013.01); B01D 71/50 (2013.01); B01D 71/56 (2013.01); B01D 71/68 (2013.01); B01D 71/76 (2013.01); B01D 71/26 (2013.01); B01D 71/38 (2013.01);
Abstract

The present disclosure relates to a semipermeable membrane. The present disclosure aims to provide a semipermeable membrane having tolerance against a decrease over time in substance permeability. The present disclosure provides a semipermeable membrane containing a resin. The permeation rate of albumin in the semipermeable membrane is no lower than 30%. The albumin adsorption amount obtained when the semipermeable membrane measuring 1 cm on each side is immersed in a 0.1% albumin solution for 90 minutes is no greater than 10 μg/cm. The water permeation amount obtained when water is sucked through the semipermeable membrane at a negative pressure of 3±0.2 kPa is expressed by no smaller than 1,000 L/(mhour). The semipermeable membrane can isolate a cell from an external environment.

Find Patent Forward Citations

Kawagoe, Masako. (2021). Semipermeable membrane and method of manufacturing the same (U.S. Patent No. 11058795). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11058795

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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