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 8932470 B1

PDF
Full Text
Expired
Date of Patent:
Jan. 13, 2015

Filed:

Apr. 14, 2009
Applicants:

Tatsuya Fukuda, Tokyo, JP;

Yoshimasa Matsuura, Tokyo, JP;

Inventors:

Tatsuya Fukuda, Tokyo, JP;

Yoshimasa Matsuura, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01D 11/00 (2006.01); B01D 61/00 (2006.01); C02F 1/44 (2006.01); B01D 24/00 (2006.01); A01N 1/02 (2006.01); B01D 39/02 (2006.01); B01D 39/08 (2006.01); B01D 29/00 (2006.01); B01D 29/46 (2006.01); B01D 39/00 (2006.01); B01D 39/14 (2006.01); B01D 71/06 (2006.01); A61M 1/36 (2006.01);
U.S. Cl.
CPC ...
B01D 39/02 (2013.01); B01D 39/083 (2013.01); A61M 1/3633 (2013.01); A61M 2205/7545 (2013.01); B01D 2239/0421 (2013.01); B01D 2239/0478 (2013.01); B01D 2239/0609 (2013.01); B01D 2239/0613 (2013.01); B01D 2239/0618 (2013.01); B01D 2239/0622 (2013.01); B01D 2239/0627 (2013.01); B01D 2239/0636 (2013.01); B01D 2239/065 (2013.01); B01D 2239/0659 (2013.01); B01D 2239/0663 (2013.01); B01D 2239/0668 (2013.01); B01D 2239/086 (2013.01); B01D 2239/1216 (2013.01); B01D 2239/1225 (2013.01); B01D 2239/1233 (2013.01);
Abstract

An aggregate-removing filter material efficiently removes aggregates that are contained in a blood product for transfusion and may cause transfusion reactions without clogging, and exhibits excellent quality stability, and a blood product filtration method uses a filter apparatus that includes the aggregate-removing filter material and a leukocyte-removing filter material. The aggregate-removing filter material includes short fibers having a fineness of 0.7 to 4.0 dtex and a fiber length of 1 to 80 mm, and a ground fabric that includes long fibers, a fiber axis of the long fibers being oriented in a planar direction of the ground fabric, the short fibers being entangled with the ground fabric so that the aggregate-removing filter material has a total weight per unit area of 10 to 80 g/m, and a layer of the short fibers forming a three-dimensional structure.


Find Patent Forward Citations

Fukuda, Tatsuya. (2015). Filter material for removing aggregates and method of filtering blood product (U.S. Patent No. 8932470). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8932470

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

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