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    Partial encapsulation of stents
    26.
    发明授权
    Partial encapsulation of stents 有权
    部分包扎支架

    公开(公告)号：US06770087B2

    公开(公告)日：2004-08-03

    申请号：US09848740

    申请日：2001-05-03

    申请人： Richard Layne ,  Sandra Cundy ,  Debra Bebb

    发明人： Richard Layne ,  Sandra Cundy ,  Debra Bebb

    IPC分类号： A61F206

    CPC分类号： A61F2/915 ,  A61F2/07 ,  A61F2/89 ,  A61F2002/072 ,  A61F2250/0029 ,  Y10S623/901 ,  Y10T156/1026 ,  Y10T156/1056 ,  Y10T156/1062 ,  Y10T156/109

    摘要： Partially encapsulated stents are made using gaps cut into ePTFE covering material. Ring stents are placed over an inner ePTFE tube (e.g., supported on a mandrel) and are covered by a “lacey” graft sleeve, which is constructed by cutting apertures into an ePTFE tube so that a series of circumferential and longitudinal strips is created. This “lacey” sleeve is then laminated to the inner ePTFE tube to capture the stents. By selecting the size and position of the apertures in the ePTFE covering, it is possible to leave critical parts of the stent unencapsulated to facilitate flexibility and expansion. Alternatively, the gaps can consist of slits cut into the ePTFE covering material. These slits can be cut in any direction including longitudinally, radially, or diagonally. In addition, the slits can be spaced at varying intervals around the covering material to maximize flexibility and expandability. Although a single stent can be used, these approaches lend themselves to use of a plurality of individual ring stents spaced apart along the inner ePTFE tube.

    摘要翻译： 部分包封的支架使用切入ePTFE覆盖材料的间隙制成。 环形支架放置在内部ePTFE管（例如，支撑在心轴上）上并且被“花边”移植套管覆盖，该套筒通过将孔切割成ePTFE管而构成，从而产生一系列周向和纵向条。 然后将这种“蕾丝”套筒层压到内部ePTFE管上以捕获支架。 通过选择ePTFE覆盖物中的孔的尺寸和位置，可以使支架的关键部分未被包封以便于柔性和膨胀。 或者，间隙可以由切割成ePTFE覆盖材料的狭缝组成。 这些狭缝可以在包括纵向，径向或对角线的任何方向上切割。 此外，狭缝可以围绕覆盖材料以不同的间隔隔开，以最大化灵活性和可扩展性。 虽然可以使用单个支架，但是这些方法本身可以使用沿着内部ePTFE管间隔开的多个单个环形支架。