MEDICAL PURPOSE MATERIAL, MEDICAL PURPOSE SEPARATION MEMBRANE AND BLOOD PURIFICATION DEVICE Russian patent published in 2021 - IPC C08F218/04 C08F218/10 C08F226/10 B01D69/02 B01D71/28 B01D71/68 B01D71/00 

FIELD: medicine.

SUBSTANCE: present invention relates to a separation membrane for medical purposes, as well as to a device for purifying blood, including a separation membrane for medical purposes. The separation membrane is a membrane in which a medical purpose material is bound or connected to the surface of a membrane comprising a hydrophobic polymer. The medical purpose material is a copolymer that includes a hydrophobic component and a hydrophilic component. The hydrophobic component has a terminal alkyl group with the number of carbon atoms from 2 to 20 in the side chain. The static edge angle of the water drop on the copolymer is 30 degrees or more and less than 70 degrees. The copolymer has only one glass transition temperature, equal to 45°C or above and below 90°C. The static edge angle of a water drop on a hydrophobic polymer is 70 degrees or more and less than 160 degrees. The glass transition temperature of the hydrophobic polymer is 50 or above and below 250°С.

EFFECT: resulting membrane is able to prevent the adhesion of platelets and proteins in contact with biological components, such as blood, even for an extended period of time.

6 cl, 3 dwg, 2 tbl, 10 ex