具有不同微孔结构和过滤特性的各种类型的膜已用于血液过滤的各个方面,如血浆分离(PS),血浆分级(PF),血液过滤(HF)和血液透析(HD)。通常能透过全部或部分血浆蛋白一类大分子的微孔膜已用由PS和PF;膜表面有一层表皮结构的不对称膜则用于HF;无孔的对称膜用于HD,但这种膜不能透过血浆蛋白。在相同的操作条件下,用这种膜对血液进行了对滤。 Various types of membranes with different microporous structures and filtration properties have been used in various aspects of blood filtration such as plasma fractionation (PS), plasma fractionation (PF), hemofiltration (HF), and hemodialysis (HD). Microporous membranes, which typically pass through all or part of a plasma protein-like macromolecule, have been used by PS and PF; asymmetric membranes with a skin structure on the membrane surface for HF; nonporous symmetric membranes for HD, but The membrane can not penetrate the plasma protein. Under the same operating conditions, the membrane is used to filter the blood.