Guidewire for precision catheter positioning
    6.
    发明授权
    Guidewire for precision catheter positioning 失效
    导丝精密导管定位

    公开(公告)号:US06406442B1

    公开(公告)日:2002-06-18

    申请号:US09289850

    申请日:1999-04-12

    IPC分类号: A61B500

    摘要: The present invention comprises a guidewire having a compressible guide section capable of deflecting a catheter to abut a lumen wall. The compressible guide section exerts an outward radial force while it is at least partially compressed within a lumen. The guide section permits a physician to precisely locate a catheter within a body lumen and adjust a catheter tip orientation to be directed to a particular side of a body lumen. A method is disclosed for properly matching a guidewire and a catheter to operate together in the present invention, along with a force measuring instrument to assist in measuring a catheter's resistance force value. This method and systems of the present invention involve determining the exact force relationship between the compressible guide section and the resistance of the catheter in vitro.

    摘要翻译: 本发明包括具有能够使导管偏转以邻接管腔壁的可压缩引导部的导丝。 可压缩引导部分在其在管腔内至少部分地被压缩时施加向外的径向力。 引导部分允许医生精确地将导管定位在体腔内并且调整导管尖端取向以被引导到体腔的特定侧。 公开了一种用于在本发明中将引导线和导管正确匹配以一起操作的方法,以及用于辅助测量导管阻力值的力测量仪器。 本发明的这种方法和系统涉及在体外确定可压缩引导部分与导管阻力之间的精确力关系。