申请人:——
公开号:US20020068183A1
公开(公告)日:2002-06-06
An article having a non-thrombogenic surface and a process for making the article are disclosed. The article is formed by (i) coating a polymeric substrate with a crosslinked chemical combination of a polymer having at least two amino substituted side chains, a crosslinking agent containing at least two crosslinking functional groups which react with amino groups on the polymer, and a linking agent containing a first functional group which reacts with a third functional group of the crosslinking agent, and (ii) contacting the coating on the substrate with an antithrombogenic agent which covalently bonds to a second functional group of the linking agent. In one example embodiment, the polymer is a polyamide having amino substituted alkyl chains on one side of the polyamide backbone, the crosslinking agent is a phosphine having the general formula (A)
3
P wherein A is hydroxyalkyl, the linking agent is a polyhydrazide and the antithrombogenic agent is heparin.
本文揭示了一种具有非血栓形成表面的文章及其制作过程。该文章是通过以下步骤形成的:(i)用至少具有两个氨基取代侧链的聚合物、含有至少两个与聚合物上的氨基反应的交联功能基团的交联剂以及含有第一个与交联剂的第三个功能基团反应的连接剂的交联化学组合物覆盖聚合物基底;(ii)将基底上的涂层与抗血栓剂接触,该抗血栓剂与连接剂的第二个功能基团共价键合。在一个示例实施例中,聚合物是具有氨基取代烷基链的聚酰胺,交联剂是具有通式(A)3P的膦化合物,其中A是羟基烷基,连接剂是多肼,抗血栓剂是肝素。