WHITE BLOOD CELL REMOVING FILTER MATERIAL AND WHITE BLOOD CELL REMOVING FILTER DEVICE

摘要

PROBLEM TO BE SOLVED: To make it possible to remove white blood cells without inducing the increase of the pressure drop accompanying the treatment of a white blood cell suspension as compared with the conventional filter materials. SOLUTION: This white blood cell removing filter material is porous particles having an average aperture diameter of >=3 to <50μm and a particle size of >=50 to <500μm. The white blood cell removing filter material which is the porous particles having the average aperture diameter of >=3 to <50μm and the particle size of >=50 to <500μm is compressed and packed in a container in such a manner that swelling volume of >=30 to <=100% is attained.