Lead electrode for use in an MRI-safe implantable medical device
    2.
    发明授权
    Lead electrode for use in an MRI-safe implantable medical device 有权
    用于MRI安全可植入医疗器械的引线电极

    公开(公告)号:US07174219B2

    公开(公告)日:2007-02-06

    申请号:US10981092

    申请日:2004-11-03

    IPC分类号: A61N1/05

    摘要: A pulse stimulation system configured for implantation into a patient's body comprises a pulse stimulator, a conductive stimulation lead having a proximal end electrically coupled to the pulse simulator and having a distal end, and an electrode assembly coupled to the distal end of the stimulation lead. The electrode assembly comprises an electrode body having a therapy electrode thereon that is electrically coupled to the stimulation lead for delivering therapy to the patient. A floating electrode is configured to contact the patient's body tissue and has a surface area substantially larger than that of the therapy electrode. A filter is coupled between the therapy electrode and the floating electrode for diverting RF energy toward the floating electrode and away from the therapy electrode.

    摘要翻译: 构造成用于植入患者体内的脉冲刺激系统包括脉冲刺激器,具有电耦合到脉冲模拟器的近端的导电刺激引线,并且具有远端,以及耦合到刺激引线的远端的电极组件。 电极组件包括其上具有治疗电极的电极体,其电耦合到刺激引线以将治疗递送给患者。 浮动电极被配置为接触患者的身体组织,并且其表面积基本上大于治疗电极的表面积。 过滤器耦合在治疗电极和浮动电极之间,用于将RF能量朝向浮动电极转移并远离治疗电极。