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    • 1. 发明公开
    • CATHETER DEPTH, POSITION AND ORIENTATION LOCATION SYSTEM
    • 安排用于确定管理的深度和导管的对齐
    • EP0822778A1
    • 1998-02-11
    • EP96911698.0
    • 1996-04-11
    • NAVION BIOMEDICAL CORPORATION
    • SHAPIRO, Alan, R.KAY, Donald, A.
    • A61M25A61B5G01V3A61B19
    • A61B5/06A61B5/062A61B34/20A61B34/25A61B2034/107A61B2034/2051A61B2090/062A61B2090/3958G01V3/105H01F2005/027
    • A system (10) for externally locating a sensor in tissue, comprising an external probe including at least first and second electromagnetic output coils (12) with non-parallel longitudinal axes; and output coil (2) driver for alternately energizing the first and second output coils, for generating a time-varying magnetic field which penetrates the patient's skin (7); a sensor coil (30), having a longitudinal axis, for developing an induced electrical voltage in response to the time-varying magnetic field; a distance determinator, responsive to the induced voltage from the sensor coil (30), for determining from the induced voltage, the distance between the output coils (12) and the sensor coil (30), independently of the relative angle, in a horizontal plane, between the sensor coil (30) longitudinal axis, and the longitudinal axes of the output coils (12); and a direction determinator for determining and displaying the direction, in the horizontal plane, in which the sensor coil (30) longitudinal axis is pointing.
    • 一种用于从外部定位在组织中的传感器,外部探头包括至少第一和第二电磁线圈输出具有非平行的纵向轴的系统,包括; 和用于交替输出线圈驱动器激励所述第一和第二输出线圈,用于产生一个随时间变化的磁场,该磁场穿透患者的皮肤; 一个传感器线圈,具有纵向轴线,用于响应于随时间变化的磁场所感应的电压的发展; 的距离确定器,响应于来自所述传感器线圈的感应电压,用于从所述感应电压确定性采矿,输出线圈和传感器线圈之间的距离,unabhängig的相对角度的,在水平平面中,传感器线圈纵向轴线之间, 和输出线圈的纵向轴线; 以及用于确定性采矿和显示方向,水平面内的方向确定器,其中,所述传感器线圈纵向轴线指向。