Catheter balloon formed from a polymeric composite
    1.
    发明授权
    Catheter balloon formed from a polymeric composite 失效
    由聚合复合材料形成的导管球囊

    公开(公告)号:US5344401A

    公开(公告)日:1994-09-06

    申请号:US60441

    申请日:1993-05-12

    IPC分类号: A61M25/00 A61M29/00 A61M5/32

    摘要: A catheter balloon is provided for medical dilation procedures which is formed from a polymeric composite having an enhanced integrity. The balloon comprises an expandable central body and two tapered termini positioned at opposing ends of the body which are formed from a structural layer of continuous polymeric materials characterized as biaxially oriented in the body, but not in the tapered termini. A layer of an imide-containing polymer is provided external to the structural layer of the tapered termini to coat the termini and strengthen or otherwise enhance the integrity of the termini not having a biaxial orientation. The imide-containing polymer coating may further be continuously extended to the body of the balloon. The imide-containing polymer is applied to the structural layer of the balloon, in a liquid state and heat cured over time to produce a high-integrity coating.

    摘要翻译: 为具有增强的完整性的聚合复合材料形成的用于医疗扩张程序的导管气囊被提供。 气囊包括可膨胀的中心体和位于主体的相对端处的两个锥形末端,其由连续聚合材料的结构层形成,其特征在于在体内双轴取向,但不在锥形末端。 含有酰亚胺的聚合物层设置在锥形末端的结构层的外部,以涂覆末端,并加强或以其它方式增强不具有双轴取向的末端的完整性。 含酰亚胺的聚合物涂层可以进一步连续地延伸到气囊的主体。 将含酰亚胺的聚合物以液态施加到气囊的结构层,并随时间加热固化以产生高完整性涂层。