Anti-infective and antithrombogenic medical articles and method for
their preparation
    5.
    发明授权
    Anti-infective and antithrombogenic medical articles and method for their preparation 失效
    抗感染和抗血栓形成的医疗用品及其制备方法

    公开(公告)号:US5013306A

    公开(公告)日:1991-05-07

    申请号:US497780

    申请日:1990-03-21

    CPC分类号: A61L29/06 A61M2025/0056

    摘要: An anti-infective medical article has chlorhexidine bulk distributed throughout a polyurethane base layer and may have a coating layer on the base layer. The coating layer may be chlorhexidine permeated into the surface or it may be an antibiotic, antithrombogenic agent or a polymeric surface layer laminated onto the base layer. The invention includes a method for preparing the article wherein a homogeneous melt of polymer and chlorhexidine is prepared by twin screw compounding and the melt is extruded to give a medical article having bulk distributed chlorhexidine.

    摘要翻译: 抗感染性医疗用品具有遍及整个聚氨酯基层的氯己定,并且可以在基层上具有涂层。 涂层可以是氯己定渗透到表面中,或者它可以是层压到基底层上的抗生素,抗血栓形成剂或聚合物表面层。 本发明包括一种制备该制品的方法,其中通过双螺杆混合制备聚合物和氯己定的均匀熔体,并将该熔体挤出以得到具有体积分布的氯己定的医用制品。

    Anti-infective and antithrombogenic medical articles and method for
their preparation
    6.
    发明授权
    Anti-infective and antithrombogenic medical articles and method for their preparation 失效
    抗感染和抗血栓形成的医疗用品及其制备方法

    公开(公告)号:US4999210A

    公开(公告)日:1991-03-12

    申请号:US449382

    申请日:1989-12-07

    摘要: An anti-infective medical article has chlorhexidine bulk distributed throughout a polyurethane base layer and may have a coating layer on the base layer. The coating layer may be chlorhexidine, an antibiotic, or an antithrombogenic agent permeated into the surface or it may be a polymeric surface layer having bulk distributed chlorhexidine laminated onto the base layer. The invention includes a method for preparing the article wherein a homogeneous melt of polymer and chlorhexidine is prepared by twin screw compounding and the melt is extruded to give a medical article having bulk distributed chlorhexidine. The article may then be laminated by dipping into a solution of chlorhexidine and a substantially hydrophilic polymer in a solvent.

    摘要翻译: 抗感染性医疗用品具有遍及整个聚氨酯基层的氯己定,并且可以在基层上具有涂层。 涂层可以是氯己定,抗生素或渗透到表面中的抗血栓形成剂,或者它可以是层叠在基底层上的体积分散的氯己定的聚合物表面层。 本发明包括一种制备该制品的方法,其中通过双螺杆混合制备聚合物和氯己定的均匀熔体,并将该熔体挤出以得到具有体积分布的氯己定的医用制品。 然后可以通过在溶剂中浸入氯己定和基本亲水性聚合物的溶液中来层压该制品。