Air-core microwave ablation antennas
    6.
    发明申请
    Air-core microwave ablation antennas 审中-公开
    空心微波消融天线

    公开(公告)号:US20080119921A1

    公开(公告)日:2008-05-22

    申请号:US11879278

    申请日:2007-07-17

    IPC分类号: A61B18/18

    摘要: A method and device delivers microwave power to an antenna through a coaxial cable utilizing air or other gases as its dielectric core. The cable includes supports made of low-loss materials to keep the inner conductor centered in the cable, and defining spaces therebetween for the air or gas. Channels in the supports allow the air or gas to circulate in the cable. The gas may be chilled or cooled to provide an addition level of heat dissipation. The device enables delivery of large amounts of power to tissue without undue heating of the feed cable or peripheral tissues, and without increasing the diameter of the feeding cable or antenna, keeping the antenna safe for percutaneous use.

    摘要翻译: 一种方法和装置通过使用空气或其它气体作为其介质芯的同轴电缆向微波提供微波功率。 电缆包括由低损耗材料制成的支撑件,以将内部导体保持在电缆中心,并在空间或气体之间形成空间。 支架中的通道允许空气或气体在电缆中循环。 气体可以被冷却或冷却以提供加热水平的散热。 该设备能够将大量的电力传送到组织而不会不必要地加热馈电电缆或外围组织,并且不增加馈电电缆或天线的直径,从而保持天线安全以供经皮使用。