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:
Apr. 04, 2000

Filed:

Jul. 17, 1998
Applicant:
Inventors:

Kenichiro Yazawa, Asaka, JP;

Fumio Sugaya, Minami-Ashigara, JP;

Masao Kitajima, Asaka, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
210637 ; 210650 ; 210741 ; 210808 ; 436178 ;
Abstract

This invention provides a method of filtering blood using a filtering material comprising glass fiber filter, capable of obtaining a desired amount of plasma or serum without hemolysis and leakage of blood cells easily which comprises keeping pressure difference between blood inlet side and filtrate outlet side 50 mmHg or less at least for 5 seconds from contacting the blood to be filtered, and keeping the pressure difference 200 mmHg or less throughout the filtering of the blood.


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