Intravascular deliverable stent for reinforcement of vascular abnormalities
    8.
    发明授权
    Intravascular deliverable stent for reinforcement of vascular abnormalities 有权
    血管内输送支架用于加强血管异常

    公开(公告)号:US08778008B2

    公开(公告)日:2014-07-15

    申请号:US11654288

    申请日:2007-01-17

    IPC分类号: A61F2/06 A61F2/82 A61F2/852

    摘要: A catheter deliverable stent/graft especially designed to be used in a minimally invasive surgical procedure for treating a variety of vascular conditions such as aneurysms, stenotic lesions and saphenous vein grafts, comprises an innermost tubular structure and at least one further tubular member in coaxial arrangement. In one embodiment, the innermost tubular structure is of a length (L1) and is formed by braiding a relatively few strands of highly elastic metallic alloy. The pick and pitch of the braid are such as to provide relative large fenestrations in the tubular wall that permit blood flow through the wall and provide the primary radial support structure. A portion of the innermost tubular structure of a length L1 is surrounded by a further braided tubular structure having relatively many strands that substantially inhibit blood flow through the fenestrations of the innermost tubular structure. The composite structure can be stretched to reduce the outer diameter of the stent/graft, allowing it to be drawn into a lumen of a delivery catheter. The catheter can then be advanced through the vascular system to the site of treatment and then released, allowing it to self-expand against the vessel wall. Various optional embodiments are disclosed that allow one skilled in the art to tailor the design to the specific application.

    摘要翻译: 特别设计用于治疗各种血管病变如动脉瘤,狭窄病变和隐静脉移植物的微创外科手术中的导管可输送支架/移植物包括最内管状结构和至少一个同轴布置的另外的管状构件 。 在一个实施例中,最内管状结构具有长度(L1),并且通过编织相对较少数量的高弹性金属合金而形成。 编织物的拣选和间距是在管状壁中提供允许血液流过壁并提供初级径向支撑结构的相对较大的开窗。 长度为L1的最内管状结构的一部分由具有相当多的股线的进一步的编织管状结构包围,其基本上抑制通过最内管状结构的开窗的血液流动。 复合结构可被拉伸以减小支架/移植物的外径,使其能够被拉入输送导管的内腔。 导管然后可以通过血管系统前进到治疗部位,然后释放,允许其自我扩张抵靠血管壁。 公开了各种可选实施例,其允许本领域技术人员根据具体应用来定制设计。

    PERCUTANEOUS CATHETER DIRECTED INTRAVASCULAR OCCLUSION DEVICES
    10.
    发明申请
    PERCUTANEOUS CATHETER DIRECTED INTRAVASCULAR OCCLUSION DEVICES 有权
    PERCUTANEOUS导管指导性血管内装置

    公开(公告)号:US20110307000A1

    公开(公告)日:2011-12-15

    申请号:US13216784

    申请日:2011-08-24

    IPC分类号: A61M29/00

    摘要: The present invention provides an improved vascular occlusion device having improved flexibility and retention of the type fabricated from braided tubular metal fabric having an expanded preset configuration and an elongated collapsed reduced diameter configuration for delivery through a catheter to a treatment site and shaped to create an occlusion of an abnormal opening in a body organ or vessel, the woven metal fabric having a memory property whereby the medical device tends to return to said expanded preset configuration when unconstrained. The device further including at least one disk portion adjacent a body cylindrical portion formed from the fabric and having a transition diameter between the disk and cylindrical portion, significantly smaller than the diameter of the disk and the diameter of the cylindrical portion.

    摘要翻译: 本发明提供了一种改进的血管闭塞装置,其具有改进的由具有扩大的预设构型的编织管状金属织物制造的类型的柔性和保持性,以及用于通过导管输送到治疗部位并且成形以产生闭塞 身体器官或血管中的异常开口,织造金属织物具有记忆特性,由此医疗装置在不受约束时往往返回到所述扩展的预设构型。 所述装置还包括至少一个与所述织物形成的主体圆柱形部分相邻的圆盘部分,并且在所述圆盘和圆柱形部分之间具有明显小于所述圆盘直径和所述圆柱形部分直径的过渡直径。