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    Multisegmented guiding catheter for use in medical catheter systems
    2.
    发明授权
    Multisegmented guiding catheter for use in medical catheter systems 失效
    用于医疗导管系统的多分段引导导管

    公开(公告)号：US5658263A

    公开(公告)日：1997-08-19

    申请号：US443727

    申请日：1995-05-18

    申请人： Ninh H. Dang ,  John C. Glasgow, Jr.

    发明人： Ninh H. Dang ,  John C. Glasgow, Jr.

    IPC分类号： A61M25/00 ,  A61M25/088

    CPC分类号： A61M25/0054 ,  A61M25/0041 ,  A61M2025/0081 ,  A61M25/005 ,  A61M25/0053

    摘要： The present invention provides a significantly improved guiding catheter for use in catheter systems. It utilizes a segmented body to tailor the catheter strength and flexibility for optimal responsiveness at the distal end. The segmented body utilizes progressively softer materials in the distal direction in order to improve overall maneuverability. The longest and proximalmost segment is substantially straight and harder or stiffer than the rest of the catheter and than typical guiding catheter bodies. This segment performs the function of a handle having a platform at its distal end in order to improve response in the distal segments of the remainder of the catheter. This invention improves the transmission of torque, axial and lateral forces and reduces the likelihood of kinking both laterally and radially. Achieved is improved control of the distal portion through input from the hub at the proximal end of the elongated stiff handle segment. The distal portion provides a softer shaft for transmitting torque over the aortic arch to the tip of the catheter. Guiding is optimized by segment. The softer material portion of the catheter, when inserted, generally coincides with the aortic arch and allows for optimal torque and push force transmission over the arch. Backup support is enhanced, the amount of backup activity being limited more by the ability of the operator to transmit manual input to the tip of the guiding catheter, rather than to tip construction.

    摘要翻译： 本发明提供了一种用于导管系统的显着改进的引导导管。 它利用分段的身体来调整导管的强度和灵活性，以便在远端获得最佳的反应能力。 分段体在远端方向上使用逐渐变软的材料，以提高总体机动性。 最长和最近的段与导管的其余部分相比基本上是直的，比起典型的引导导管体更硬或更硬。 该段执行具有在其远端具有平台的手柄的功能，以便改善导管剩余部分的远侧段中的反应。 本发明改进了扭矩，轴向和横向力的传递，并且降低了侧向和径向扭结的可能性。 实现的是通过从细长刚性手柄段的近端处的轮毂的输入来改善远端部分的控制。 远侧部分提供较软的轴，用于将主动脉弓上的扭矩传递到导管的尖端。 指导是按细分优化的。 当插入时，导管的较软的材料部分通常与主动脉弓重合，并允许在拱顶上的最佳扭矩和推力传递。 增强了备份支持，备份活动的数量更多地受限于操作者将手动输入传送到引导导管的尖端的能力，而不是尖端构造。

    PERCUTANEOUS MAGNETIC CATHETER
    4.
    发明申请
    PERCUTANEOUS MAGNETIC CATHETER 审中-公开

    公开(公告)号：US20110313516A1

    公开(公告)日：2011-12-22

    申请号：US13148743

    申请日：2010-02-12

    申请人： Ninh H. Dang ,  Samuel M. Shaolian ,  Ross Tsukashima ,  Daniel C. Anderson

    发明人： Ninh H. Dang ,  Samuel M. Shaolian ,  Ross Tsukashima ,  Daniel C. Anderson

    IPC分类号： A61F2/24

    CPC分类号： A61M25/0082 ,  A61F2/2445 ,  A61F2/2448 ,  A61F2/2466 ,  A61F2210/009 ,  A61F2250/0004 ,  A61M25/0127

    摘要： A percutaneous magnetic catheter may be used to position one or more magnetic components near a magnetically driven prosthesis in a patient's heart in order to adjust the magnetically driven prosthesis. In certain embodiments, the one or more magnetic components are rotatable. Rotation of the one or more magnetic components cause variations in a magnetic field. Variations in the magnetic field may be utilized to adjust the size or shape of a magnetically driven prosthesis. In this way, a magnetically driven prosthesis may be adjusted after a patient has recovered from a surgery in which the magnetically driven prosthesis was implanted. Further, a magnetically driven prosthesis may be adjusted based upon progression of a heart condition.

    摘要翻译： 可以使用经皮磁导管将一个或多个磁性部件定位在患者心脏内的磁驱动假体附近，以便调整磁驱动假体。 在某些实施例中，一个或多个磁性部件是可旋转的。 一个或多个磁性部件的旋转导致磁场的变化。 可以利用磁场的变化来调节磁力驱动假体的尺寸或形状。 以这种方式，可以在患者从其中植入有磁性驱动的假体的手术中恢复之后调节磁力驱动的假体。 此外，可以基于心脏状况的进展来调整磁驱动假体。