Delivery system and sheath for endoluminal prosthesis
    1.
    发明申请
    Delivery system and sheath for endoluminal prosthesis 审中-公开
    用于腔内假体的输送系统和护套

    公开(公告)号:US20080161902A1

    公开(公告)日:2008-07-03

    申请号:US12005178

    申请日:2007-12-26

    申请人: Flemming Poulsen

    发明人: Flemming Poulsen

    IPC分类号: A61F2/06 A61M31/00

    摘要: A stent delivery sheath has a distal portion extending circumferentially around a stent, the delivery sheath tapering distally of the stent to a reduced diameter at the distal end of the sheath so providing an atraumatic or dilating surface distally of the stent. The distal portion of the delivery sheath comprises a low friction inner layer and an elastic outer layer both extending to the distal end of the sheath. The inner layer has at least one separation line extending longitudinally of the sheath to the distal end to define at least two leaf edges in the radially inner layer which are configured to move circumferentially with respect to each other to accommodate elastic radial expansion of the outer layer as the sheath is retracted proximally with respect to the stent.

    摘要翻译: 支架输送护套具有围绕支架周向延伸的远侧部分,所述输送护套在支架的远端逐渐变细到在护套的远端处的直径减小,从而在支架的远端提供无损伤或扩张的表面。 输送护套的远端部分包括一个低摩擦内层和两个延伸到护套远端的弹性外层。 所述内层具有至少一个分离线,所述分离线从所述护套的纵向延伸到所述远端以限定所述径向内层中的至少两个叶边缘,所述至少两个叶边缘被配置成相对于彼此周向移动以适应所述外层的弹性径向膨胀 因为护套相对于支架向近侧缩回。