SYMMETRIC SHORT CONTACT FORCE SENSOR WITH FOUR COILS
    4.
    发明公开
    SYMMETRIC SHORT CONTACT FORCE SENSOR WITH FOUR COILS 审中-公开
    具有四个线圈的对称短接触力传感器

    公开(公告)号:EP3167835A1

    公开(公告)日:2017-05-17

    申请号:EP16198077.6

    申请日:2016-11-10

    IPC分类号: A61B18/14 A61B5/06

    摘要: In a flexible catheterization probe a resilient member couples the tip to the distal portion of the probe and is configured to deform in response to pressure exerted on the tip when engaging tissue. A position sensor in the distal portion of the probe senses the position of the tip relative to the distal portion of the probe. The relative position changes in response to deformation of the resilient member. The position sensor generates a signal indicative of the position of the tip responsively to a magnetic field produced by a magnetic field generator located in the position sensor. The position sensor has a first coil of conductive wire having first windings, and three second coils of conductive wire having respective second windings. The second coils are symmetrically distributed about the longitudinal axis of the first coil.

    摘要翻译: 在柔性导管插入探针中,弹性构件将尖端联接到探针的远侧部分,并且构造成响应于当接合组织时施加在尖端上的压力而变形。 探针远端部分中的位置传感器感测探针相对于探针远端部分的位置。 相对位置响应于弹性构件的变形而改变。 位置传感器响应于由位于位置传感器中的磁场发生器产生的磁场而产生指示尖端位置的信号。 位置传感器具有具有第一绕组的第一导线线圈和具有相应第二绕组的第三导线线圈。 第二线圈围绕第一线圈的纵向轴线对称分布。