公开(公告)号：US20110213352A1

公开(公告)日：2011-09-01

申请号：US12713515

申请日：2010-02-26

申请人： ANTHONY C. LEE ,  KENLYN S. BONN

发明人： ANTHONY C. LEE ,  KENLYN S. BONN

IPC分类号： A61B18/18

CPC分类号： A61B18/1815 ,  A61B2017/00424 ,  A61B2017/00433 ,  A61B2017/00867 ,  A61B2018/00023 ,  A61B2018/00077 ,  A61B2018/00142 ,  A61B2018/00577 ,  A61B2018/1823 ,  A61B2018/1846 ,  A61B2018/1869 ,  A61B2018/1892

摘要： An electromagnetic surgical ablation probe having a tunable helical antenna element is disclosed. The probe includes a coaxial feedline having an inner conductor coaxially disposed within a dielectric, and an outer conductor coaxially disposed around the dielectric. The inner conductor and dielectric extend distally beyond a distal end of the outer conductor. A helical antenna element is operably coupled to a distal end of the inner conductor. During use, the antenna may be tuned by changing at least one dimension of the helical antenna element. Embodiments are presented wherein a dimensions of the helical antenna element is changed by state change of a shape memory alloy, by a change in temperature, by activation of a piston by fluidic pressure, by linear motion of a conical tip, and by a manual screw-type adjustment.

摘要翻译： 公开了一种具有可调螺旋天线元件的电磁手术切除探头。 探头包括同轴馈电线，其具有同轴地设置在电介质内的内导体，以及同轴地设置在电介质周围的外导体。 内部导体和电介质延伸超出外部导体的远端。 螺旋天线元件可操作地联接到内部导体的远端。 在使用期间，可以通过改变螺旋天线元件的至少一个维度来调谐天线。 具体实施方式是通过形状记忆合金的状态变化，温度变化，通过流体压力活化活塞，通过锥形尖端的直线运动以及手动螺丝来改变螺旋天线元件的尺寸 型调整