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    • 6. 发明申请
    • ELECTRODE ASSEMBLY IN A MEDICAL ELECTRICAL LEAD
    • 医用电线中的电极组件
    • US20110118813A1
    • 2011-05-19
    • US12915631
    • 2010-10-29
    • Zhongping C. YangPiotr J. PrzybyszewskiBen W. HerbergKevin R. SeifertDina L. Williams
    • Zhongping C. YangPiotr J. PrzybyszewskiBen W. HerbergKevin R. SeifertDina L. Williams
    • A61N1/05
    • A61N1/375A61N1/05A61N1/086A61N1/3718
    • A medical device lead is presented that includes an electrode assembly having a first electrode located near a distal end of the electrode assembly and a second electrode located near a proximal end of the electrode assembly. The electrode assembly also includes a conductive elongated coupler that is electrically coupled to the first electrode and capacitively coupled to the second electrode. At low frequencies and DC (e.g., during delivery of stimulation therapy), the capacitive coupling between the conductive elongated coupler and the second electrode presents a high impedance allowing little current to be redirected from the first electrode to the second electrode. However, at high frequencies (e.g., during an MRI scan) the capacitive coupling between the conductive elongated coupler and the second electrode presents a low impedance, resulting in a significant amount of induced current being redirected to the second electrode and dissipated into bodily fluid surrounding the second electrode.
    • 提供了一种医疗装置引线,其包括具有位于电极组件的远端附近的第一电极的电极组件和位于电极组件的近端附近的第二电极。 电极组件还包括电耦合到第一电极并电容耦合到第二电极的导电细长耦合器。 在低频和DC(例如,在递送刺激疗法期间),导电细长耦合器和第二电极之间的电容耦合呈现高阻抗,允许将电流从第一电极重定向到第二电极。 然而,在高频(例如,在MRI扫描期间),导电细长耦合器和第二电极之间的电容耦合呈现低阻抗,导致大量的感应电流被重定向到第二电极并且耗散到周围的体液中 第二电极。
    • 8. 发明授权
    • Electrode assembly in a medical electrical lead
    • 医用电极中的电极组件
    • US09014815B2
    • 2015-04-21
    • US12915631
    • 2010-10-29
    • Zhongping C. YangPiotr J. PrzybyszewskiBen W. HerbergKevin R. SeifertDina L. Williams
    • Zhongping C. YangPiotr J. PrzybyszewskiBen W. HerbergKevin R. SeifertDina L. Williams
    • A61N1/05A61N1/375A61N1/37A61N1/08
    • A61N1/375A61N1/05A61N1/086A61N1/3718
    • A medical device lead is presented that includes an electrode assembly having a first electrode located near a distal end of the electrode assembly and a second electrode located near a proximal end of the electrode assembly. The electrode assembly also includes a conductive elongated coupler that is electrically coupled to the first electrode and capacitively coupled to the second electrode. At low frequencies and DC (e.g., during delivery of stimulation therapy), the capacitive coupling between the conductive elongated coupler and the second electrode presents a high impedance allowing little current to be redirected from the first electrode to the second electrode. However, at high frequencies (e.g., during an MRI scan) the capacitive coupling between the conductive elongated coupler and the second electrode presents a low impedance, resulting in a significant amount of induced current being redirected to the second electrode and dissipated into bodily fluid surrounding the second electrode.
    • 提供了一种医疗装置引线,其包括具有位于电极组件的远端附近的第一电极的电极组件和位于电极组件的近端附近的第二电极。 电极组件还包括电耦合到第一电极并电容耦合到第二电极的导电细长耦合器。 在低频和DC(例如,在递送刺激疗法期间),导电细长耦合器和第二电极之间的电容耦合呈现高阻抗,允许将电流从第一电极重定向到第二电极。 然而,在高频(例如,在MRI扫描期间),导电细长耦合器和第二电极之间的电容耦合呈现低阻抗,导致大量的感应电流被重定向到第二电极并且耗散到周围的体液中 第二电极。