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    RADIOFREQUENCY ABLATION DEVICE FOR REDUCING THE INCIDENCE OF SKIN BURNS
    9.
    发明申请
    RADIOFREQUENCY ABLATION DEVICE FOR REDUCING THE INCIDENCE OF SKIN BURNS 审中-公开
    用于减少皮肤刺激发生率的射频消融装置

    公开(公告)号：US20080051777A1

    公开(公告)日：2008-02-28

    申请号：US11846293

    申请日：2007-08-28

    申请人： Dieter Haemmerich

    发明人： Dieter Haemmerich

    IPC分类号： A61B18/18

    CPC分类号： A61B18/1233 ,  A61B18/16 ,  A61B2018/165

    摘要： A radiofrequency ablation device reduces the incidence of skin burns by selectively activating ground pads in a partially sequential and partially contemporaneous manner. The selective sequential activation of the ground pads lowers power dispersion at each ground pad relative to contemporaneous activation of ground pads and/or sequential activation of ground pads. This reduction in power dispersion at each ground pad consequently yields a lower overall maximum temperature, and more uniform heating of all of the ground pads. This makes the system more predictable and safer for use in treatment. The radiofrequency ablation device may include a layered ground pad that includes at least two layers of material. One layer of material can be substantially similar to the material used for a monolithic ground pad, and one layer can have a substantially lower relative electrical conductivity, but a substantially higher electrical conductivity relative to adjacent body tissue. Alternatively, a ground pad may include multiple conductive zones that are activated using the same selective sequential activation scheme.

    摘要翻译： 射频消融装置通过以部分顺序和部分同时的方式选择性地激活接地焊盘来减少皮肤灼伤的发生率。 接地焊盘的选择性顺序激活相对于接地焊盘的同时激活和/或接地焊盘的顺序激活降低了每个接地焊盘处的功率分散。 因此，在每个接地焊盘处的功率分散的这种降低产生较低的总体最高温度，并且对所有接地焊盘进行更均匀的加热。 这使得系统更可预测和更安全地用于治疗。 射频消融装置可以包括包括至少两层材料的分层接地垫。 一层材料可以基本上类似于用于单片接地垫的材料，并且一层可以具有基本上较低的相对电导率，但相对于相邻的身体组织具有显着更高的导电性。 或者，接地焊盘可以包括使用相同的选择性顺序激活方案激活的多个导电区域。