An antithrombogenic polyurethane polymer and a process for imparting antithrombogenic activity to a polyurethane substrate.

摘要

There is disclosed an antithrombogenic polyurethane polymer which comprises:
a polyurethane substrate;
a polymeric amine covalently bonded to the polyurethane substrate; and
an antithrombogenic agent
wherein the polymeric amine is chosen from:
a polyvinyl amine, a polyalkylenimine which has 2, 3 or 4 carbon atoms per amine unit, and mixtures thereof.
<??>A process for imparting antithrombogenic activity to a polyurethane substrate is also disclosed.