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145 条记录 (耗时 0.028 秒)

    Stent With Improved Mechanical Properties
    2.
    发明申请
    Stent With Improved Mechanical Properties 审中-公开
    具有改善机械性能的支架

    公开(公告)号：US20080319534A1

    公开(公告)日：2008-12-25

    申请号：US11767308

    申请日：2007-06-22

    申请人： Matthew J. Birdsall ,  Gianfranco Pellegrini ,  Justin Goshgarian ,  Jeffrey Allen

    发明人： Matthew J. Birdsall ,  Gianfranco Pellegrini ,  Justin Goshgarian ,  Jeffrey Allen

    IPC分类号： A61F2/06

    CPC分类号： A61F2/88 ,  A61F2/915 ,  A61F2002/91508 ,  A61F2002/91558 ,  A61F2220/0058 ,  A61F2250/0036

    摘要： A stent includes a central portion having a first waveform. The first waveform is wrapped around a longitudinal axis of the stent at a pitch to define a plurality of helical turns. The stent also includes an end segment connected to one end of the central portion. The end segment has a second waveform that includes a plurality of struts and a plurality of crowns. Each of the plurality of struts has a different length so that peaks of the crowns that define an end of the stent lie within a plane that is substantially perpendicular to the longitudinal axis. Cross-sectional areas of the struts having different lengths vary so that the struts move substantially uniformly during radial contraction and/or radial expansion of the stent.

    摘要翻译： 支架包括具有第一波形的中心部分。 第一波形以间距缠绕在支架的纵向轴线上以限定多个螺旋形匝。 支架还包括连接到中心部分的一端的端部段。 端部段具有包括多个支柱和多个冠部的第二波形。 多个支柱中的每一个具有不同的长度，使得限定支架的端部的冠部的顶点位于基本上垂直于纵向轴线的平面内。 具有不同长度的支柱的横截面积变化，使得支柱在支架的径向收缩和/或径向膨胀期间基本均匀地移动。

    Bioresorbable Stent
    4.
    发明申请
    Bioresorbable Stent 有权
    生物可吸收支架

    公开(公告)号：US20080147175A1

    公开(公告)日：2008-06-19

    申请号：US11611533

    申请日：2006-12-15

    申请人： Michael Krivoruchko ,  Jeffrey Allen ,  Matthew Birdsall

    发明人： Michael Krivoruchko ,  Jeffrey Allen ,  Matthew Birdsall

    IPC分类号： A61F2/06

    CPC分类号： A61L31/022 ,  A61L31/128 ,  A61L31/148

    摘要： A bioresorbable endoluminal prosthesis for placement in a body lumen having a stent substrate of a first metallic material that has a lower electrical potential than a standard reference electrode. The stent substrate is coated with a biodegradable polymer having a second metallic material dispersed therein, wherein the second metallic material has a higher electrical potential than the standard reference electrode. After implantation of the stent within the body lumen, the second metallic material is present in the polymeric coating in a sufficient concentration to cause galvanic corrosion of the first metallic material such that over time the stent substrate is bioresorbed.

    摘要翻译： 一种生物可再吸收的腔内假体，用于放置在具有比标准参考电极具有更低电位的第一金属材料的支架基底的体腔内。 所述支架基底涂覆有分散在其中的第二金属材料的可生物降解的聚合物，其中所述第二金属材料具有比所述标准参比电极更高的电位。 在将支架植入体腔内之后，第二金属材料以足够的浓度存在于聚合物涂层中，以引起第一金属材料的电化学腐蚀，使得随着时间的推移，支架基底被生物吸收。

    Bioresorbable stent
    5.
    发明授权
    Bioresorbable stent 有权
    生物可吸收支架

    公开(公告)号：US07651527B2

    公开(公告)日：2010-01-26

    申请号：US11611533

    申请日：2006-12-15

    申请人： Micheal Krivoruchko ,  Jeffrey Allen ,  Matthew Birdsall

    发明人： Micheal Krivoruchko ,  Jeffrey Allen ,  Matthew Birdsall

    IPC分类号： A61F2/06

    CPC分类号： A61L31/022 ,  A61L31/128 ,  A61L31/148

    摘要： A bioresorbable endoluminal prosthesis for placement in a body lumen having a stent substrate of a first metallic material that has a lower electrical potential than a standard reference electrode. The stent substrate is coated with a biodegradable polymer having a second metallic material dispersed therein, wherein the second metallic material has a higher electrical potential than the standard reference electrode. After implantation of the stent within the body lumen, the second metallic material is present in the polymeric coating in a sufficient concentration to cause galvanic corrosion of the first metallic material such that over time the stent substrate is bioresorbed.

    摘要翻译： 一种生物可再吸收的腔内假体，用于放置在具有比标准参考电极具有更低电位的第一金属材料的支架基底的体腔内。 所述支架基底涂覆有分散在其中的第二金属材料的可生物降解的聚合物，其中所述第二金属材料具有比所述标准参比电极更高的电位。 在将支架植入体腔内之后，第二金属材料以足够的浓度存在于聚合物涂层中，以引起第一金属材料的电化学腐蚀，使得随着时间的推移，支架基底被生物吸收。

    Stent Having Controlled Porosity for Improved Ductility
    6.
    发明申请
    Stent Having Controlled Porosity for Improved Ductility 审中-公开
    具有控制孔隙度的支架以改善延展性

    公开(公告)号：US20080208352A1

    公开(公告)日：2008-08-28

    申请号：US11679426

    申请日：2007-02-27

    申请人： Michael Krivoruchko ,  Jeffrey Allen ,  Matthew J. Birdsall

    发明人： Michael Krivoruchko ,  Jeffrey Allen ,  Matthew J. Birdsall

    IPC分类号： A61F2/86

    CPC分类号： A61L31/022 ,  A61F2/91 ,  A61F2/915 ,  A61F2002/91558 ,  A61F2230/0013 ,  A61F2250/0023 ,  A61L31/146

    摘要： An endoluminal prosthesis for placement in a body lumen of a metallic material having controlled porosity for improved ductility. The metallic material may be formed into a stent structure or a wire or sheet, which may then be formed into the stent structure. The porous network of the stent includes pores that range from nanometer scale to micron scale. The controlled porosity accommodates volume changes as well as provides a barrier to crack propagation to allow alloy steels and amorphous metal materials, which would otherwise be considered too brittle for the demands of intraventional use, to be utilized in a stent.

    摘要翻译： 用于放置在具有受控孔隙度的金属材料的体腔中用于改善延展性的腔内假体。 金属材料可以形成为可以形成支架结构的支架结构或线或片。 支架的多孔网络包括范围从纳米级到微米级的孔。 受控的孔隙率适应体积变化，并且提供裂纹扩展的障碍，以允许在支架中使用合金钢和非晶态金属材料，否则其将被认为对于常规使用的要求太脆。

    Stent With Cathodic Protection and Stent Delivery System
    7.
    发明申请
    Stent With Cathodic Protection and Stent Delivery System 审中-公开
    支架与阴极保护和支架输送系统

    公开(公告)号：US20100125325A1

    公开(公告)日：2010-05-20

    申请号：US12274848

    申请日：2008-11-20

    申请人： Jeffrey Allen ,  Michael Krivoruchko ,  Joseph Berglund

    发明人： Jeffrey Allen ,  Michael Krivoruchko ,  Joseph Berglund

    IPC分类号： A61F2/06 ,  A61M29/00

    CPC分类号： A61F2/82 ,  A61F2/958 ,  A61F2210/0004 ,  A61F2250/0031 ,  A61F2250/0043

    摘要： The stent with cathodic protection and stent delivery system includes a stent delivery system including a catheter; a balloon operably attached to the catheter; and a stent disposed on the balloon. The stent includes a stent body having a first stent layer of an anodic stent material disposed about a second stent layer of a cathodic stent material; and a battery having a first battery layer of an anodic battery material and a second battery layer of a cathodic battery material. The first stent layer is electrically coupled to the first battery layer and the second stent layer is electrically coupled to the second battery layer.

    摘要翻译： 具有阴极保护和支架输送系统的支架包括包括导管的支架输送系统; 可操作地附接到导管的球囊; 以及设置在气囊上的支架。 所述支架包括支架体，所述支架主体具有围绕阴极支架材料的第二支架层设置的阳极支架材料的第一支架层; 以及具有阳极电池材料的第一电池层和阴极电池材料的第二电池层的电池。 第一支架层电耦合到第一电池层，第二支架层电耦合到第二电池层。