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79 条记录 (耗时 0.041 秒)

    Variable strength stent
    52.
    发明授权
    Variable strength stent 有权

    公开(公告)号：US06511505B2

    公开(公告)日：2003-01-28

    申请号：US10079950

    申请日：2002-02-19

    申请人： Daniel L. Cox ,  Timothy A. Limon

    发明人： Daniel L. Cox ,  Timothy A. Limon

    IPC分类号： A61F206

    CPC分类号： A61F2/91 ,  A61F2/915 ,  A61F2002/91508 ,  A61F2002/91516 ,  A61F2002/91525 ,  A61F2002/91533 ,  A61F2002/91575 ,  A61F2230/0054 ,  A61F2250/0036

    摘要： An expandable stent for implantation in a body lumen, such as an artery, is disclosed. The stent consists of a plurality of radially expandable cylindrical elements generally aligned on a common longitudinal stent axis and interconnected by one or more interconnecting members placed so that the stent is flexible in the longitudinal direction. The strength of the stent at a center section or at either end can be varied by increasing the mass of the struts forming each cylindrical element in that center section or end section relative to the lower mass struts in the remaining sections of the stent. Increasing the mass of the struts can be accomplished by, for a given strut thickness, increasing the width of the strut, or increasing the length of a cylindrical element.

    Pre-formed expandable member having grooves
    53.
    发明授权
    Pre-formed expandable member having grooves 有权
    具有凹槽的预制可膨胀构件

    公开(公告)号：US06478807B1

    公开(公告)日：2002-11-12

    申请号：US09590478

    申请日：2000-06-08

    申请人： Philip C. Foreman ,  Timothy A. Limon ,  Richard J. Saunders ,  Björn G. Svensson ,  Gregory W. Teaby, II

    发明人： Philip C. Foreman ,  Timothy A. Limon ,  Richard J. Saunders ,  Björn G. Svensson ,  Gregory W. Teaby, II

    IPC分类号： A61M2900

    CPC分类号： A61F2/958 ,  A61M25/1002 ,  A61M2025/1086

    摘要： A catheter assembly is provided for use in delivering and implanting a stent in a body lumen, such as in a coronary artery. An elongated catheter body includes an expandable member or balloon having a folded configuration and an expanded configuration wherein a plurality of pre-formed grooves extending generally circumferentially around the balloon when the balloon is in its folded configuration. An intravascular stent is removably crimped over the balloon and is at least partially retained on the balloon by the grooves. Upon inflation of the balloon, the grooves will flatten out thereby releasing the stent and allowing the stent to expand radially outwardly into contact with the body lumen or coronary artery.

    摘要翻译： 提供导管组件用于将支架递送和植入体腔（例如冠状动脉）中。 细长的导管主体包括具有折叠构型和扩张构型的可扩张构件或球囊，其中当球囊处于其折叠构型时，多个预先形成的凹槽通常围绕球囊周向延伸。 血管内支架可移除地卷曲在气囊上并且通过凹槽至少部分地保持在气球上。 在球囊膨胀时，凹槽将变平，从而释放支架并允许支架径向向外扩张以与体腔或冠状动脉接触。

    Stent having increased scaffolding expandable bar arms
    54.
    发明授权
    Stent having increased scaffolding expandable bar arms 有权
    支架具有增加的脚手架可扩张杆

    公开(公告)号：US06440162B1

    公开(公告)日：2002-08-27

    申请号：US09626407

    申请日：2000-07-26

    申请人： Daniel L. Cox ,  Andreina P. Gomez ,  Timothy A. Limon

    发明人： Daniel L. Cox ,  Andreina P. Gomez ,  Timothy A. Limon

    IPC分类号： A61F206

    CPC分类号： A61F2/966 ,  A61F2/91 ,  A61F2/915 ,  A61F2/95 ,  A61F2002/91533 ,  A61F2002/91575 ,  A61F2230/0054

    摘要： The invention is directed to a stent that is relatively flexible along its longitudinal axis but can be crimped or reduced to a very low profile while maintaining the ability to expand radially outwardly to any number of diameters to support a body lumen such as a coronary artery. The stent includes a plurality of cylindrical rings connected to each other by links. The cylindrical rings have curved portions that are attached by arms having slits that, when expanded, form apertures or holes to permit the stent to be reduced to a very low profile for delivery purposes, yet be able to expand the stent to various diameters and to provide sufficient vessel wall coverage when implanted.

    摘要翻译： 本发明涉及一种沿着其纵向轴线相对柔性的支架，但是可以卷曲或缩小到非常低的轮廓，同时保持径向向外扩展到任何数量的直径以支撑诸如冠状动脉的体腔的能力。 支架包括通过连杆彼此连接的多个圆柱形环。 圆柱形环具有弯曲部分，其由具有缝隙的臂附接，所述狭缝在扩张时形成孔或孔，以允许支架被减小到非常低的轮廓以用于输送目的，但是能够将支架膨胀到各种直径， 在植入时提供足够的血管壁覆盖。

    Stents with high radial strength and methods of manufacturing same
    55.
    发明授权
    Stents with high radial strength and methods of manufacturing same 有权
    具有高径向强度的支架及其制造方法

    公开(公告)号：US08002817B2

    公开(公告)日：2011-08-23

    申请号：US12114608

    申请日：2008-05-02

    申请人： Timothy A. Limon

    发明人： Timothy A. Limon

    IPC分类号： A61F2/82

    CPC分类号： B29C67/0014 ,  A61F2/0077 ,  A61F2/91 ,  A61F2/915 ,  A61F2002/91558 ,  A61F2002/91566 ,  A61F2002/91575 ,  A61F2210/0004 ,  A61F2250/0067 ,  B29C53/02 ,  B29C55/24 ,  B29C2793/0009 ,  B29L2031/7534 ,  Y10T29/49908

    摘要： Polymeric stents having fracture toughness and resistance to recoil after deployment are disclosed along with methods of manufacturing such stents. Improvements to mechanical characteristics and other improvements may be achieved by having polymer chains within individual stent struts oriented in a direction that is closer to or in line with the axis of the individual stent struts. The desired orientation of polymer molecules may be achieved by one or any combination of extruding polymers into hollow tubes to induce axially oriented polymer chains, applying a tensile load to polymer tubes to induce axially oriented polymer chains, and radially expanding polymer tubes to induce circumferentially oriented polymer chains. Stent patterns include struts defining diamond shaped cells and/or W-shaped cells.

    摘要翻译： 公开了具有断裂韧性和部署后反冲性的聚合物支架以及制造这种支架的方法。 机械特性和其它改进的改进可以通过使单独的支架支柱内的聚合​​物链沿与单个支架支柱的轴线更接近或一致的方向定向来实现。 聚合物分子的期望取向可以通过挤出聚合物到中空管中的一种或任何组合来实现，以诱导轴向取向的聚合物链，向聚合物管施加拉伸载荷以诱导轴向取向的聚合物链，以及径向扩张的聚合物管以诱导圆周取向 聚合物链。 支架图案包括定义菱形细胞和/或W形细胞的支柱。

    Polymeric Stent
    57.
    发明申请
    Polymeric Stent 有权
    聚合物支架

    公开(公告)号：US20100004735A1

    公开(公告)日：2010-01-07

    申请号：US12557758

    申请日：2009-09-11

    申请人： Arlene Sucy Yang ,  Kevin Jow ,  Andrea Dawn Morrison ,  Timothy A. Limon

    发明人： Arlene Sucy Yang ,  Kevin Jow ,  Andrea Dawn Morrison ,  Timothy A. Limon

    IPC分类号： A61F2/06 ,  B28B1/48

    CPC分类号： B29D23/00 ,  A61F2/0077 ,  A61F2/91 ,  A61F2/915 ,  A61F2002/91575 ,  A61F2210/0004 ,  A61F2250/0067 ,  B29C53/02 ,  B29C55/26 ,  B29C67/0014 ,  B29C2793/0009 ,  B29L2031/7534

    摘要： A strut pattern of an endoprosthesis includes a plurality of W-shape cells that define a tubular body, the W-shaped cells at the opposite ends of the tubular body have a modified configuration that is different than the W-shaped cells at the middle portion of the tubular body. At the distal end of the tubular body, the W-shaped cells have crests with axial positions that are axially spaced apart, and have troughs with circumferential positions that are spaced apart. At the intermediate and distal end of the tubular body, the W-shaped cells crests with axial positions that coincide and have troughs with circumferential positions that coincide. The strut pattern is cut from a tubular precursor construct made of PLLA that has been radially expanded and axially extended by blow molding.

    摘要翻译： 内置假体的支柱图案包括限定管状体的多个W形细胞，管状体的相对端的W形细胞具有与中部的W形细胞不同的修改构造 的管状体。 在管状体的远端，W形细胞具有轴向间隔开的轴向位置的波峰，并且具有间隔开的圆周位置的槽。 在管状体的中间和远端，W形细胞的轴向位置重合并具有与圆周位置重合的槽。 从通过吹塑成型径向膨胀和轴向延伸的PLLA制成的管状前体构件切割支柱图案。