Method for filtering blood or blood components using...

Details Method for filtering blood or blood components using... Method for filtering blood or blood components using...

2007-02-15

2010-02-02

Kim, John (Department: 1797)

Liquid purification or separation

Processes

Liquid/liquid solvent or colloidal extraction or diffusing...

C210S321600, C210S321750, C210S348000, C210S645000, C210S650000, C210S767000

Reexamination Certificate

active

07655146

ABSTRACT:
The method comprises providing a leukocyte-removing filter having a thickness of 9.0 mm to 9.4 mm, an air permeability pressure drop of 300 Pa to 700 Pa, and effective filtration area of 50 cm2to 70 cm2which comprises a flat and flexible container having an inlet port and an outlet port and a sheet-like leukocyte-removing-filter material with a thickness of 8.2 mm to 8.6 mm disposed to divide the container into an inlet-port side chamber and an outlet-port side chamber, providing a pair of volume restriction boards disposed outside of the inlet port side external surface and the outlet port side external surface of the flexible container, having the distance between the volume restriction boards at the portion where the volume restriction boards facing each other sandwich the leukocyte-removing filter being in a range from [thickness of leukocyte-removing filter+0.5 mm] to [thickness of leukocyte-removing filter+2.5 mm], and filtering blood or blood components through the leukocyte-removing filter under a pressure of 30 kPa to 50 kPa while restraining expansion of the flexible container occurring during filtration by means of the volume restriction boards.

REFERENCES:
patent: 5507904 (1996-04-01), Fisher et al.
patent: 6221264 (2001-04-01), Ishida et al.
patent: 7591954 (2009-09-01), Kimura et al.
patent: 2006/0184085 (2006-08-01), Kimura et al.
patent: 2007/0275459 (2007-11-01), Terashima et al.
patent: 2008/0011691 (2008-01-01), Yamada et al.
patent: 2008/0110829 (2008-05-01), Kobayashi
patent: 0526678 (1993-02-01), None
patent: 6-335516 (1994-12-01), None
patent: 7-67952 (1995-03-01), None
patent: 7-267871 (1995-10-01), None
patent: 8-507000 (1996-07-01), None
patent: 11-216179 (1999-08-01), None
patent: 2001-149444 (2001-06-01), None
patent: 2003-052808 (2003-02-01), None
patent: 90/15660 (1990-12-01), None
patent: 95/17236 (1995-06-01), None
English Language Abstract of JP 06-335516.
English Language Abstract of JP 07-067952.
English Language Abstract of JP 7-267871.
English Language Abstract of JP 2001-149444.
English Language Abstract of JP 2003-052808.

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