| 摘要 |
1. Semipermeable hollow fibre for treating blood, especially by haemodialysis and/or by ultrafiltration, having substantially improved haemocompatibility characteristics, and consisting of a copolymer of acrylonitrile with an olefinically unsaturated comonomer carrying sulphonic groups, optionally in salt form, of a symmetrical type, characterized in that it has the homogeneous microporous structure of a get obtained essentially by lowering the temperature of a solution of the said copolymer by means of air or of an inert fluid which is immiscible with the constituents of the said solution during gelling, followed by washing. |
