Patent ID: 9649424
Date: 2017-05-16
CPC Classifications: A61M,A61P,B01D,C12N,D04H

Claim:
1. A method for separating blood cell components from a biological fluid, comprising: (a) capturing white blood cells and platelets on a blood cell separation material by contacting the biological fluid with the blood cell separation material, thereby providing a red blood cell-rich fraction; and (b) separating a white blood cell-rich fraction from the resulting blood cell separation material using a separation solution, wherein the blood cell separation material comprises a nonwoven fabric, wherein the nonwoven fabric comprises a polyethylene terephthalate fiber or a polybutylene terephthalate fiber, wherein the nonwoven fabric has a density K of 2.0×10 wherein a ratio of a mononuclear cell recovery rate to a granular leukocyte recovery rate of the white blood-cell rich fraction or the mononuclear cell-rich fraction is larger than 1.0.