METHOD OF FORMING A TUBULAR MEMBRANE ON A STRUCTURAL FRAME
    1.
    发明申请
    METHOD OF FORMING A TUBULAR MEMBRANE ON A STRUCTURAL FRAME 有权
    在结构框架上形成管状膜的方法

    公开(公告)号:US20080036113A1

    公开(公告)日:2008-02-14

    申请号:US11842804

    申请日:2007-08-21

    IPC分类号: B29C41/04

    摘要: The present invention relates to a medical device and method of forming the medical device. In particular, the present invention relates to a medical device having a tubular membrane structure over a radially expandable structural frame, and to a method of forming the tubular membrane on the radially expandable structural frame. In one aspect, a structural frame is placed over a spinning mandrel and a fiber is electro-statically spun over at least a portion of the structural frame forming a membrane. A transfer sheath may be used between the mandrel and structural frame to prevent the electro-statically spun fiber from adhering to the mandrel. In another aspect, a first membrane is spun over the mandrel before the structural frame is placed over the mandrel. In this aspect, at least a portion of the structural frame is sandwiched between the membranes. The membrane or membranes and structural frame form a fiber spun frame assembly. The fiber spun frame assembly may be coated with an elastic polymer. In addition, the membrane or membranes may go through some post processing to achieve desired characteristics or configurations.

    摘要翻译: 本发明涉及形成医疗装置的医疗装置及其方法。 特别地,本发明涉及一种在可径向扩张的结构框架上具有管状膜结构的医疗装置以及在径向可扩张的结构框架上形成管状膜的方法。 在一个方面,将结构框架放置在纺丝心轴上,并且将纤维在形成膜的结构框架的至少一部分上静电纺丝。 可以在心轴和结构框架之间使用转移护套,以防止静电纺丝纤维粘附到心轴上。 在另一方面,在结构框架放置在心轴上之前,将第一膜旋转在心轴上。 在这方面,结构框架的至少一部分被夹在膜之间。 膜或膜和结构框架形成纤维纺纱架组件。 纤维纺丝框架组件可以涂覆有弹性聚合物。 此外,膜或膜可以经历一些后处理以实现期望的特性或构型。