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    • 33. 发明公开
    • Helical hybrid stent
    • 螺旋混合型支架
    • EP2529706A1
    • 2012-12-05
    • EP12181899.1
    • 2010-04-21
    • Medinol Ltd.
    • Richter, Jacob
    • A61F2/88
    • A61F2/88A61F2/885A61F2/89A61F2/91A61F2/915A61F2002/075A61F2002/91583A61F2220/0025A61F2220/005A61F2220/0058A61F2230/0091A61F2250/0067A61F2250/0068A61K31/436A61L31/022A61L31/048A61L31/06A61L31/10A61L31/146A61L31/16A61L2300/416Y10T29/49764C08L27/18
    • An expandable helical stent is provided, wherein the stent may be formed of a main stent component and a securement. The main stent component is formed from a flat strip having one or more undulating side bands (401, 402) that may be connected to form geometrically shaped cells (430) and are helically wound to form a stent. The helical coils of the main stent component may be spaced apart or nestled to each other. The nestling of the undulation of adjacent helical windings contributes to maintaining the tubular shape and uniformity of the helically coiled stent. Alternatively, the flat strip may comprise a single undulating pattern. At the ends of the main stent component are end bands (407), which when wound, form a cylindrical ring. In one embodiment, one or more struts of the main stent component may have a width sufficient to include one or more fenestrations. The fenestrated struts may be connected by loops or turns wherein the material is narrower than that of the fenestrated struts to provide enhanced flexibility. The helical tubular is maintained with a securement.
    • 提供可扩张的螺旋支架,其中支架可以由主支架部件和固定件形成。 主支架部件由具有一个或多个起伏侧带(401,402)的扁条形成,所述侧带可连接以形成几何形状的细胞(430)并螺旋缠绕以形成支架。 主支架部件的螺旋线圈可以彼此间隔或嵌套。 相邻螺旋绕组的起伏的雏形有助于维持螺旋形螺旋支架的管状形状和均匀性。 或者,扁平条带可以包括单个波形图案。 在主支架部件的端部处有端部带(407),其在缠绕时形成圆柱形环。 在一个实施例中,主支架部件的一个或多个支柱可具有足以包括一个或多个开窗的宽度。 开窗支柱可以通过环或圈连接,其中材料比开窗支柱的窄,以提供增强的柔性。 螺旋管保持固定。