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    Vascular Occlusion Devices
    3.
    发明申请
    Vascular Occlusion Devices 有权
    血管闭塞装置

    公开(公告)号：US20120046687A1

    公开(公告)日：2012-02-23

    申请号：US13262546

    申请日：2010-04-02

    申请人： Julie Marie Trommeter ,  Michael B. Lyons ,  Jeffrey Paul Castleberry ,  Robin Shandas ,  James Fogelberg ,  Stephen Johnson

    发明人： Julie Marie Trommeter ,  Michael B. Lyons ,  Jeffrey Paul Castleberry ,  Robin Shandas ,  James Fogelberg ,  Stephen Johnson

    IPC分类号： A61F2/01

    CPC分类号： A61B17/12022 ,  A61B17/12109 ,  A61B17/12113 ,  A61B17/12145 ,  A61B17/1215 ,  A61B2017/00477 ,  A61B2017/00778 ,  A61B2017/00871 ,  A61B2017/00898 ,  A61B2017/12054 ,  A61L31/04 ,  A61L31/14 ,  A61L2400/16 ,  A61L2430/36

    摘要： Shape memory materials (SMM) are formed as coil-shaped vascular occlusion devices upon deployment. Shape memory polymer (SMP) materials are tailored through formulation for specific mechanical behavior of the coils. Concurrent coil diameter changes enhance the relative change in stiffness along the length of the coil. Interconnecting structures (104a/b) are formed on ends of elongated members (102a) in the pre-deployment shape for multiple coil insertion capability within an introducer. Channels (206) are formed in pre-deployment shape, elongate members (202) that allow access for injection of imaging contrast agent or concurrent placement of instruments. A single SMM occlusive device (300) transforms into multiple, smaller diameter coils (302b) in the deployed state to generate a complex occlusive structure. A SMM occlusive device (400) has a collapsed fabric (404) component attached to and extending along a sidewall during storage and insertion, and then deploys as a coil (402b) to form a single- or multiple-layer occlusive fabric surface within a center of the coil (402b).

    摘要翻译： 形状记忆材料（SMM）在部署时形成为线圈状血管闭塞装置。 形状记忆聚合物（SMP）材料通过配方为线圈的特定机械性能而定制。 并联线圈直径变化增强沿着线圈长度的刚度的相对变化。 互连结构（104a / b）形成在细长构件（102a）的端部中，用于在引导器内用于多个线圈插入能力的预展开形状。 通道（206）以预先展开形状形成，细长构件（202）允许进入成像造影剂的注入或仪器的同时放置。 单个SMM闭塞装置（300）在展开状态下变换成多个较小直径的线圈（302b），以产生复杂的闭塞结构。 SMM闭塞装置（400）具有在储存和插入期间附着并沿侧壁延伸的塌陷织物（404）部件，然后作为线圈（402b）展开以形成单层或多层闭塞织物表面 线圈（402b）的中心。