Filter material for selectively removing leukocytes

Details Filter material for selectively removing leukocytes Filter material for selectively removing leukocytes

1994-12-05

1995-12-26

Kim, John

Liquid purification or separation

Filter

Material

210503, 210505, 210506, 210507, 210508, 2105101, B01D 3900, B01D 3908, B01D 3916

Patent

active

054784700

ABSTRACT:
Disclosed is a filter material for selectively removing leukocytes from a leukocyte-containing suspension, which comprises a porous element having an average pore diameter of 1 to 25 .mu.m and a total pore volume of 0.40 to 0.95 ml/ml of the porous element, and wherein the sum of respective pore volumes of pores of the porous element which have a pore diameter of 1 to 30 .mu.m is 90% or more, based on said total pore volume. Also disclosed is a filter apparatus for selectively removing leukocyte from a leukocyte-containing suspension which is packed with the above-mentioned filter material. By virtue of the filter material, the filter apparatus not only can remove leukocytes from a leukocyte-containing suspension at a leukocyte removal efficiency as excellent as 10.sup.-4 or less in terms of a leukocyte residual ratio without suffering from a pressure loss increase, but also can be rendered compact.

REFERENCES:
patent: 4880548 (1989-11-01), Pall et al.
patent: 4923620 (1990-05-01), Pall
patent: 4925572 (1990-05-01), Pall
patent: 4936998 (1990-06-01), Nishimura et al.

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