Chronically-implantable active fixation medical electrical leads and related methods for non-fluoroscopic implantation
    15.
    发明授权
    Chronically-implantable active fixation medical electrical leads and related methods for non-fluoroscopic implantation 有权
    长期植入式主动固定医用电线和相关方法用于非荧光镜植入

    公开(公告)号:US08135467B2

    公开(公告)日:2012-03-13

    申请号:US12492906

    申请日:2009-06-26

    IPC分类号: A61N1/00

    CPC分类号: A61N1/056 A61N1/0573 A61N1/08

    摘要: Bio-impedance may be used for navigation systems to chronically implant pacing and defibrillation leads in the heart using a non-fluoroscopic position sensing unit (PSU). Such a system requires that a conductive material, such as a retractable helical tip-electrode, be exposed during implantation. Since the tip is retracted during implantation, this disclosure provides a modified distal portion employing at least one aperture (or “window”) for fluid exposure of the helix-electrode and a deployable internal sleeve for covering the aperture(s) when the helix-electrode is extended.

    摘要翻译: 生物阻抗可用于导航系统,以使用非荧光位置感测单元(PSU)在心脏中长期植入起搏和除颤引线。 这样的系统需要在植入期间露出诸如可伸缩螺旋尖端电极的导电材料。 由于尖端在植入期间缩回,本公开提供了一种改进的远侧部分,其采用至少一个用于螺旋电极的流体暴露的孔口(或“窗口”),以及可展开的内部套筒, 电极延长。