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    Stretchable Anti-Buckling Coiled-Sheet Stent
    4.
    发明申请
    Stretchable Anti-Buckling Coiled-Sheet Stent 失效
    可拉伸抗弯曲卷板支架

    公开(公告)号：US20070135888A1

    公开(公告)日：2007-06-14

    申请号：US11675040

    申请日：2007-02-14

    申请人： Farhad Khosravi ,  Himanshu Patel ,  John Spiridigliozzi

    发明人： Farhad Khosravi ,  Himanshu Patel ,  John Spiridigliozzi

    IPC分类号： A61F2/06

    CPC分类号： A61F2/07 ,  A61F2/848 ,  A61F2/89 ,  A61F2/91 ,  A61F2/915 ,  A61F2/92 ,  A61F2/958 ,  A61F2002/065 ,  A61F2002/072 ,  A61F2002/075 ,  A61F2002/8486 ,  A61F2220/0008 ,  A61F2220/0016 ,  A61F2220/005 ,  A61F2220/0066 ,  A61F2220/0075 ,  A61F2230/0054 ,  A61F2250/0039

    摘要： A stent-graft having an exo-skeleton attached to a tubular graft, the tubular graft having a peripheral wall defining a lumen therein extending between first and second ends. The exo-skeleton may assume contracted and enlarged conditions, and includes one or more serpentine elements, each extending both peripherally and axially along at least a portion of the peripheral wall. Coiled-sheet stents are provided on the ends of the tubular graft for anchoring the ends within a body passage. Each serpentine element is a zigzag structure extending peripherally about the peripheral wall, with a plurality of serpentine elements distributed axially along the peripheral wall. The serpentine elements are individually attached to the peripheral wall and/or connector elements may extend between adjacent serpentine elements. Alternatively, each serpentine element may define a generally sinusoidal shape extending axially along the peripheral wall. The tubular graft may have a bifurcated end from which a tubular graft extension segment may extend and to which a docking limb may be attached. A plurality of serpentine elements may also be attached to the extension segment and the docking limb.

    摘要翻译： 具有附着到管状移植物上的外骨骼的支架移植物，所述管状移植物具有在第一和第二端之间限定内腔的周边壁。 外骨骼可以承担收缩和扩大的条件，并且包括一个或多个蛇形元件，每个沿着周壁的至少一部分周向和轴向地延伸。 螺旋片支架设置在管状移植物的端部上，用于将端部固定在体通道内。 每个蛇形元件是绕周边延伸的锯齿形结构，其中多个蛇形元件沿周壁轴向分布。 蛇形元件单独地附接到周壁，并且/或连接器元件可以在相邻的蛇形元件之间延伸。 或者，每个蛇形元件可以限定沿着周壁轴向延伸的大致正弦形状。 管状移植物可以具有分叉端，管状移植物延伸段可从该分叉端延伸并且对接肢可以附接到该端部。 多个蛇形元件也可以附接到延伸段和对接肢。

    Flexible, stretchable coiled-sheet stent
    8.
    发明申请
    Flexible, stretchable coiled-sheet stent 失效
    弹性，伸缩性卷盘支架

    公开(公告)号：US20050049687A1

    公开(公告)日：2005-03-03

    申请号：US10960328

    申请日：2004-10-06

    申请人： Yi Yang ,  Farhad Khosravi ,  Himanshu Patel

    发明人： Yi Yang ,  Farhad Khosravi ,  Himanshu Patel

    IPC分类号： A61F2/92 ,  A61F2/06

    CPC分类号： A61F2/91 ,  A61F2/915 ,  A61F2/92 ,  A61F2002/91533 ,  A61F2002/91541 ,  A61F2002/91558 ,  A61F2220/0008 ,  A61F2220/0016

    摘要： A coiled-sheet stent includes a tubular body having a longitudinal axis and a circumference, and a plurality of cylindrical bands formed in the tubular body, each band having a zig-zag pattern including a series of sequential diagonal elements connected to one another and extending about the circumference. A plurality of longitudinal connectors extend between and connect adjacent bands. The diagonal elements have an arcuate shape, all diagonal elements in each band being oriented in either a clockwise or counter-clockwise direction about the circumference. The tubular body is expandable between contracted and enlarged conditions, and the zig-zag pattern is expandable between unstretched and unstretched conditions, the zig-zag pattern being biased towards the stretched condition above a transition temperature, thereby at least partially defining the enlarged condition. A multi-cellular stent structure is also provided that includes a plurality of bat shaped cells formed in a tubular body, each cell defining a head region, a tail region and opposing curved wing regions, and a plurality of connectors extending between and connecting adjacent cells. The head and tail regions of adjacent cells are directly connected to one another, and connectors extend between adjacent wing regions of adjacent cells.

    摘要翻译： 螺旋片支架包括具有纵向轴线和圆周的管状体，以及形成在管状体中的多个圆柱形带，每个带具有包括一系列相互连接并延伸的顺序对角线元件的之字形图案 围绕圆周。 多个纵向连接器在相邻带之间延伸并连接相邻带。 对角元件具有弓形形状，每个带中的所有对角元件围绕圆周以顺时针或逆时针方向定向。 管状体在收缩和扩大的条件之间是可膨胀的，并且之字形图案可在未拉伸和未拉伸状态之间扩展，之字形图案被偏压到高于转变温度的拉伸状态，从而至少部分限定扩大状态。 还提供了一种多细胞支架结构，其包括形成在管状体中的多个蝙蝠形细胞，每个细胞限定头部区域，尾部区域和相对的弯曲翼状区域，以及在相邻细胞之间延伸并连接相邻细胞的多个连接器 。 相邻单元的头部和尾部区域彼此直接连接，并且连接器在相邻单元的相邻机翼区域之间延伸。