| abstract |
A method for treating a blood which comprises: separating the blood withdrawn from a patient's body with a first membrane into a condensed blood fraction containing human blood plasma immunoglobulin M, and a plasma fraction; separating the plasma fraction with a second membrane into low molecular weight protein and high molecular weight protein containing human blood plasma immunoglobulin G; and mixing the condensed blood and the low molecular weight protein with a substitute liquid to return the combined liquid into the patient's body; said first and second membranes containing specific sizes of micropores uniformly distributed on at least one surface of the membrane, and having a specific permeability of albumin and specific permeability of human blood plasma immunoglobulin M or G. The method and apparatus specifically can remove only a harmful antibody from a positive patient in a crossmatch test after DST, whereby a transplantation surgery of a living-related kidney can be safely carried out. |