| 摘要 |
1415399 Treating blood ZAMBON SpA 21 March 1973 [21 March 1972] 13469/73 Heading A5R [Also in Division C3] Biological liquids such as blood are purified by neutralizing or eliminating polyanionic materials by contacting the liquid with a copolymer of a diunsaturated diamide and certain saturated diamines (see Division C3). In typical applications polysaccharide anticoagulan'ts such as heparin are removed from blood stored in a container or blood in an extracorporeal circulation apparatus using solid resin filters of copolymers such as a 1, 4-bis acryloylpiperazine/N, N-dimethylethylene diamine/glycine/ethylene diamine quaterpolymer, which copolymers may also have been cross-linked. The polymers may be present in materials from which are made surgical blood pumps, valves, catheters, and prostheses.
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