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    APPARATUS HAVING VARIABLE STRUT LENGTH AND METHODS OF USE
    3.
    发明申请
    APPARATUS HAVING VARIABLE STRUT LENGTH AND METHODS OF USE 有权
    具有可变长度的装置和使用方法

    公开(公告)号：US20090228088A1

    公开(公告)日：2009-09-10

    申请号：US12043513

    申请日：2008-03-06

    申请人： David Lowe ,  Craig Bonsignore ,  David W. Snow ,  Timothy Robinson ,  Joshua P. Wiesman ,  Dawn Henderson ,  Nathan Maier

    发明人： David Lowe ,  Craig Bonsignore ,  David W. Snow ,  Timothy Robinson ,  Joshua P. Wiesman ,  Dawn Henderson ,  Nathan Maier

    IPC分类号： A61F2/06

    CPC分类号： A61F2/915 ,  A61F2/89 ,  A61F2/91 ,  A61F2/966 ,  A61F2002/91508 ,  A61F2002/91533 ,  A61F2002/91541 ,  A61F2002/9155 ,  A61F2002/91558

    摘要： A tubular prosthesis has a plurality of tubular rings that are radially expandable from a contracted configuration to an expanded configuration. Each ring comprises a plurality of axially oriented struts that are interconnected so as to form a circumferential series of at least one high peak and at least one low peak. The high and low peaks have apices that are oriented in the same axial direction. The apices of the high and low peaks are also oriented in the same direction and the apices of the high peaks are axially offset from the apices of the low peaks. A bridge member couples a pair of adjacent tubular rings together. The bridge member has a first end connected to a first low peak in a first tubular ring and a second end connected to either a high or low peak in an adjacent tubular ring.

    摘要翻译： 管状假体具有多个管状环，其从收缩构型可扩展至扩张构型。 每个环包括多个轴向取向的支柱，其互连以形成至少一个高峰值和至少一个低峰值的圆周系列。 高低峰具有相同轴向取向的顶点。 高峰和低峰的顶点也定向在相同的方向，并且高峰的顶点从低峰的顶点轴向偏移。 桥构件将一对相邻的管状环连接在一起。 桥构件具有连接到第一管状环中的第一低峰的第一端和连接到相邻管状环中的高峰或低峰的第二端。

    Electrode catheter having coil structure
    4.
    发明授权
    Electrode catheter having coil structure 失效
    电极导管具有线圈结构

    公开(公告)号：US06322559B1

    公开(公告)日：2001-11-27

    申请号：US09110588

    申请日：1998-07-06

    申请人： Jay S. Daulton ,  Dawn Henderson

    发明人： Jay S. Daulton ,  Dawn Henderson

    IPC分类号： A61B1814

    CPC分类号： A61B18/1492 ,  A61B2018/00214 ,  A61B2018/1435

    摘要： A coil is located at the distal working end of an electrode catheter. The coil includes two parallel electrically conductive strips separated by a narrow gap. The strips are covered with insulation, and are connected respectively to electrical leads having opposite polarity. Electrodes are formed by removing portions of the insulation from the strips. The coil can be expanded to define an increased effective diameter at the working end of the catheter. An RF field produced along the helical path defined by the strips of the coil is unaffected by the expanded state of the coil. The energy from the RF field heats the surrounding venous tissue and causes a reduction in the diameter of the vein. The expanded coil mechanically prevents the vein from shrinking beyond the effective diameter defined by the expanded coil and the patency of the vein is maintained for venous function.

    摘要翻译： 线圈位于电极导管的远端工作端。 线圈包括两个由窄间隙隔开的平行导电条。 带被绝缘覆盖，分别连接到具有相反极性的电引线。 电极通过从条带上去除绝缘部分而形成。 线圈可以膨胀以在导管的工作端限定增加的有效直径。 沿着由线圈的条带限定的螺旋路径产生的RF场不受线圈的扩展状态的影响。 来自RF场的能量加热周围的静脉组织并导致静脉直径的减小。 膨胀的线圈机械地防止静脉收缩超过由扩大的线圈限定的有效直径，并且维持静脉的通畅用于静脉功能。