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    • 9. 发明申请
    • FLEXIBLE HELICAL STENT HAVING INTERMEDIATE STRUCTURAL FEATURE
    • 具有中等结构特征的柔性螺旋杆
    • WO2012018836A3
    • 2012-05-03
    • PCT/US2011046294
    • 2011-08-02
    • CORDIS CORPSCHROEDER VALESKA
    • SCHROEDER VALESKA
    • A61F2/88A61F2/00
    • A61F2/915A61F2/88A61F2002/91508A61F2002/91541A61F2002/91558A61F2002/91583A61F2230/0054A61F2250/0029A61F2250/0036A61F2250/0068
    • The present invention relates to tubular stents that are implanted within a body lumen to support the organ, maintain patency and/or deliver drugs or agents. The stent (1200) has a cylindrical shape defining a longitudinal axis and includes a helical section (1208) having of a plurality of longitudinally oriented strut members (1213) and a plurality of circumferentially oriented hinge members (1214) connecting circumferentially adjacent strut members to form a band. The band is wrapped about the longitudinal axis in a substantially helical manner to form a plurality of helical windings. The helical section further includes a proximal section (1208A), a distal section (1208B) and an intermediate section (1220) there between. The stent further includes a plurality of connector members (1212) extending between longitudinally adjacent helical windings, wherein the number of circumferentially adjacent connector members per winding in the intermediate section is greater than the number of circumferentially adjacent connector members per winding in the proximal or distal sections.
    • 本发明涉及植入在体腔中以支撑器官,维持通畅和/或递送药物或药剂的管状支架。 所述支架(1200)具有限定纵向轴线的圆柱形形状,并且包括螺旋部分(1208),所述螺旋部分具有多个纵向取向的支柱构件(1213)和多个周向定向的铰链构件(1214),所述多个周向定向的铰链构件将周向相邻的支柱构件连接到 形成一个乐队。 该带围绕纵向轴线以大致螺旋状的方式缠绕以形成多个螺旋绕组。 螺旋部分还包括近端部分(1208A),远端部分(1208B)和其间的中间部分(1220)。 支架还包括在纵向相邻的螺旋绕组之间延伸的多个连接器构件(1212),其中在中间区段中每个绕组周向相邻的连接器构件的数量大于近端或远端中每个绕组周向相邻的连接器构件的数量 部分。