利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

79 条记录 (耗时 0.029 秒)

    Coiled sheet graft stent and methods of making and use
    6.
    发明授权
    Coiled sheet graft stent and methods of making and use 失效
    卷板移植支架及其制作和使用方法

    公开(公告)号：US5824054A

    公开(公告)日：1998-10-20

    申请号：US820213

    申请日：1997-03-18

    申请人： Farhad Khosravi ,  Michael Hogendijk ,  John Spiridigliozzi ,  Michael R. Ross

    发明人： Farhad Khosravi ,  Michael Hogendijk ,  John Spiridigliozzi ,  Michael R. Ross

    IPC分类号： A61F2/06 ,  A61F2/92

    CPC分类号： A61F2/92 ,  A61F2/07 ,  A61F2002/065 ,  A61F2002/075 ,  A61F2210/0076 ,  A61F2220/0016 ,  A61F2220/005 ,  A61F2220/0075

    摘要： A prosthesis is provided for treatment of aneurysms, occlusive disease of vessels and body organs, and arterio-venous fistulas, comprising an expandable coiled sheet portion having a biocompatible graft affixed thereto. The graft material, preferably a polytetrafluoroethylene ("PTFE") or polyesther material, is affixed to the coiled sheet portion by sintering, suturing, or bonding using a biocompatible adhesive. The coiled sheet portion comprises a lattice formed from a biocompatible material, and may include one or more rows of locking teeth adjacent one edge of the coiled sheet that interengage openings in an opposing edge of the coiled sheet portion to retain the prosthesis at a desired expanded diameter. The prosthesis has a small delivery profile, making it suitable for use in a variety of body vessels. Methods of making and deploying the prosthesis are also provided.

    摘要翻译： 提供了一种假体，用于治疗动脉瘤，血管和身体器官的闭塞性疾病以及动静脉瘘，其包括具有附着于其上的生物相容性移植物的可膨胀卷曲片部分。 通过使用生物相容性粘合剂进行烧结，缝合或粘合，将接枝材料，优选聚四氟乙烯（“PTFE”）或聚烯烃材料固定在螺旋片部分上。 螺旋片部分包括由生物相容性材料形成的网格，并且可以包括与线圈片的一个边缘相邻的一排或多排锁定齿，其相互接合卷绕片部分的相对边缘中的开口，以将假体保持在期望的扩张 直径。 假体具有小的输送轮廓，使其适用于各种身体血管。 还提供了制造和展开假体的方法。

    Coiled sheet stent having helical articulation and methods of use
    7.
    发明授权
    Coiled sheet stent having helical articulation and methods of use 失效
    具有螺旋关节的卷片支架和使用方法

    公开(公告)号：US5824052A

    公开(公告)日：1998-10-20

    申请号：US819967

    申请日：1997-03-18

    申请人： Farhad Khosravi ,  Michael Hogendijk ,  John Spiridigliozzi

    发明人： Farhad Khosravi ,  Michael Hogendijk ,  John Spiridigliozzi

    IPC分类号： A61F2/00 ,  A61F2/06 ,  A61F2/88 ,  A61F2/92

    CPC分类号： A61F2/88 ,  A61F2/92 ,  A61F2/91 ,  A61F2002/065 ,  A61F2250/0007 ,  A61F2250/0039

    摘要： An endoprosthesis is provided having at least first and second resilient coiled sheet portions, and an intermediate region comprising a helical articulation. The coiled sheet portions may be of the same or different diameters so as to accommodate a taper in the body lumen, while the helical articulation comprises a mesh portion that provides both flexibility and high radial strength, and which contracts to its delivery profile with relatively few turns. The coiled sheet portions also may be of the same or different lengths, and for very long devices, may be interspersed between a plurality of helical articulation portions. The pitch of the helical articulation may be varied to create a partial telescoping of the helical articulation within one of the first and second coiled sheet portions when in a contracted state. The prosthesis may also be used for treating bifurcated vessels.

    摘要翻译： 提供具有至少第一和第二弹性盘绕片部分的内置假体以及包括螺旋关节的中间区域。 螺旋片部分可以具有相同或不同的直径，以便容纳体腔中的锥形，而螺旋关节包括提供柔性和高径向强度的网状部分，并且其相对较少地收缩到其输送轮廓 轮到 螺旋片部分也可以具有相同或不同的长度，并且对于非常长的装置，可以散布在多个螺旋形关节部分之间。 当处于收缩状态时，螺旋关节的间距可以变化以产生在第一和第二螺旋片部分之一内的螺旋关节的部分伸缩。 假体也可用于治疗分叉血管。

    Helical mesh endoprosthesis and methods of use
    8.
    发明授权
    Helical mesh endoprosthesis and methods of use 失效
    螺旋网内置假体及使用方法

    公开(公告)号：US5824053A

    公开(公告)日：1998-10-20

    申请号：US820212

    申请日：1997-03-18

    申请人： Farhad Khosravi ,  Michael Hogendijk ,  Michael R. Ross

    发明人： Farhad Khosravi ,  Michael Hogendijk ,  Michael R. Ross

    IPC分类号： A61F2/88 ,  A61F2/92 ,  A61F2/06

    CPC分类号： A61F2/88 ,  A61F2/92 ,  A61F2/91 ,  A61F2220/0016

    摘要： A stent comprising a helical mesh coil is provided having a substantially rectangular cross-section and a band width equal to at least one-quarter to one-third of the maximum expanded circumference of the stent. The helical mesh has a multiplicity of openings forming a lattice which preferably provides about 60% open space or more. Alternative embodiments of the helical mesh may include specially designed free ends that preferentially overlap neighboring turns of the coil, to ensure that the free ends of the stent do not project into the body lumen, and integrally formed barbs that induce a ratcheting effect that ensures that the stent resists localized compressive forces. Methods of deploying the helical mesh coil stent also provided.

    摘要翻译： 提供了一种包括螺旋网状线圈的支架，其具有基本上矩形的横截面和等于支架的最大扩张圆周的至少四分之一至三分之一的带宽。 螺旋网具有形成格子的多个开口，其优选地提供约60％的开放空间或更多。 螺旋网的替代实施例可以包括优先重叠线圈的相邻匝的特别设计的自由端，以确保支架的自由端不会伸入体腔，以及整体形成的倒钩，其引起棘轮效应，从而确保 支架抵抗局部压缩力。 还提供了展开螺旋网状线圈支架的方法。

    Helical mesh endoprosthesis and methods of use
    9.
    发明授权
    Helical mesh endoprosthesis and methods of use 失效
    螺旋网内置假体及使用方法

    公开(公告)号：US06425915B1

    公开(公告)日：2002-07-30

    申请号：US09047891

    申请日：1998-03-25

    申请人： Farhad Khosravi ,  Michael Hogendijk ,  Michael R. Ross

    发明人： Farhad Khosravi ,  Michael Hogendijk ,  Michael R. Ross

    IPC分类号： A61F206

    CPC分类号： A61F2/88 ,  A61F2/91 ,  A61F2/92 ,  A61F2220/0016

    摘要： A stent including a helical mesh coil is provided having a substantially rectangular cross-section and a band width equal to at least one-quarter to one-third of the maximum expanded circumference of the stent. The helical mesh has a multiplicity of openings forming a lattice that preferably provides about 60% open space or more. Alternative embodiments of the stent include free ends that preferentially overlap neighboring turns of the coil, and integrally formed barbs that enhance resistance to localized compressive forces. Methods of deploying the helical mesh coil stent also provided.

    摘要翻译： 提供了包括螺旋状网状线圈的支架，其具有基本上矩形的横截面和等于支架的最大扩张周长的至少四分之一至三分之一的带宽。 螺旋网具有形成格子的多个开口，其优选地提供约60％的开放空间或更多。 支架的替代实施例包括优先重叠线圈的相邻匝的自由端和增强对局部压缩力的抵抗力的整体形成的倒刺。 还提供了展开螺旋网状线圈支架的方法。