Medical lead system utilizing electromagnetic bandstop filters
    31.
    发明授权
    Medical lead system utilizing electromagnetic bandstop filters 有权
    医用引线系统利用电磁带阻滤波器

    公开(公告)号:US08155760B2

    公开(公告)日:2012-04-10

    申请号:US13026949

    申请日:2011-02-14

    IPC分类号: A61N1/00

    摘要: Medical lead systems utilizing electromagnetic bandstop filters are provide which can be utilized in a magnetic resonance imaging (MRI) environment for patients who have implanted medical devices. The medical lead system includes an implanted lead having at least one bandstop filter associated therewith, for attenuating current flow through the lead over a range of frequencies. The bandstop filter has an overall circuit Q wherein the resultant 3 dB bandwidth is at least 10 kHz. The values of capacitance and inductance of the bandstop filter are selected such that the bandstop filter is resonant at a selected center frequency. Preferably, the bandstop filter has an overall circuit Q wherein the resultant 10 dB bandwidth is at least 10 kHz. Such bandstop filters are backwards compatible with known implantable deployment systems and extraction systems.

    摘要翻译: 提供利用电磁带阻滤波器的医疗引线系统,其可用于已经植入医疗装置的患者的磁共振成像(MRI)环境中。 医疗引线系统包括具有与其相关联的至少一个带阻滤波器的植入引线,用于在一定频率范围内衰减通过引线的电流。 带阻滤波器具有总电路Q,其中所得的3dB带宽至少为10kHz。 选择带阻滤波器的电容和电感值,使得带阻滤波器在选定的中心频率处谐振。 优选地,带阻滤波器具有总电路Q,其中所得的10dB带宽至少为10kHz。 这种带阻滤波器与已知的可植入部署系统和提取系统向后兼容。

    MEDICAL LEAD SYSTEM UTILIZING ELECTROMAGNETIC BANDSTOP FILTERS
    33.
    发明申请
    MEDICAL LEAD SYSTEM UTILIZING ELECTROMAGNETIC BANDSTOP FILTERS 有权
    医用铅系统利用电磁带式过滤器

    公开(公告)号:US20120078333A1

    公开(公告)日:2012-03-29

    申请号:US13312741

    申请日:2011-12-06

    IPC分类号: A61N1/05

    摘要: Medical lead systems utilizing electromagnetic bandstop filters are provide which can be utilized in a magnetic resonance imaging (MRI) environment for patients who have implanted medical devices. The medical lead system includes an implanted lead having at least one bandstop filter associated therewith, for attenuating current flow through the lead over a range of frequencies. The bandstop filter has an overall circuit Q wherein the resultant 3 dB bandwidth is at least 10 kHz. The values of capacitance and inductance of the bandstop filter are selected such that the bandstop filter is resonant at a selected center frequency. Preferably, the bandstop filter has an overall circuit Q wherein the resultant 10 dB bandwidth is at least 10 kHz. Such bandstop filters are backwards compatible with known implantable deployment systems and extraction systems.

    摘要翻译: 提供利用电磁带阻滤波器的医疗引线系统,其可用于已经植入医疗装置的患者的磁共振成像(MRI)环境中。 医疗引线系统包括具有与其相关联的至少一个带阻滤波器的植入引线,用于在一定频率范围内衰减通过引线的电流。 带阻滤波器具有总电路Q,其中所得的3dB带宽至少为10kHz。 选择带阻滤波器的电容和电感值,使得带阻滤波器在选定的中心频率处谐振。 优选地,带阻滤波器具有总电路Q,其中所得的10dB带宽至少为10kHz。 这种带阻滤波器与已知的可植入部署系统和提取系统向后兼容。

    Band Stop Filter Employing a Capacitor and an Inductor Tank Circuit to Enhance MRI Compatibility of Active Medical Devices
    37.
    发明申请
    Band Stop Filter Employing a Capacitor and an Inductor Tank Circuit to Enhance MRI Compatibility of Active Medical Devices 有权
    带阻滤波器采用电容器和电感池电路来增强主动医疗器械的MRI兼容性

    公开(公告)号:US20120188027A1

    公开(公告)日:2012-07-26

    申请号:US13440382

    申请日:2012-04-05

    IPC分类号: H03H7/01

    摘要: A band stop filter is provided for a lead wire of an active medical device (AMD). The band stop filter includes a capacitor in parallel with an inductor. The parallel capacitor and inductor are placed in series with the lead wire of the AMD, wherein values of capacitance and inductance are selected such that the band stop filter is resonant at a selected frequency. The Q of the inductor may be relatively maximized and the Q of the capacitor may be relatively minimized to reduce the overall Q of the band stop filter to attenuate current flow through the lead wire along a range of selected frequencies. In a preferred form, the band stop filter is integrated into a TIP and/or RING electrode for an active implantable medical device.

    摘要翻译: 为有源医疗装置(AMD)的引线提供带阻滤波器。 带阻滤波器包括与电感并联的电容器。 并联电容器和电感器与AMD的引线串联放置,其中选择电容和电感值,使得带阻滤波器以选定的频率谐振。 电感器的Q可以相对最大化,并且电容器的Q可以相对最小化,以减小带阻滤波器的总体Q,以衰减沿着选定频率的范围通过引线的电流。 在优选形式中,带阻滤波器被集成到用于有源可植入医疗装置的TIP和/或RING电极中。

    Band stop filter employing a capacitor and an inductor tank circuit to enhance MRI compatibility of active medical devices
    40.
    发明申请
    Band stop filter employing a capacitor and an inductor tank circuit to enhance MRI compatibility of active medical devices 有权
    带阻滤波器采用电容器和电感器电路来增强主动医疗器械的MRI兼容性

    公开(公告)号:US20100222856A1

    公开(公告)日:2010-09-02

    申请号:US12776617

    申请日:2010-05-10

    IPC分类号: A61N1/05

    摘要: A band stop filter is provided for a lead wire of an active medical device (AMD). The band stop filter includes a capacitor in parallel with an inductor. The parallel capacitor and inductor are placed in series with the lead wire of the AMD, wherein values of capacitance and inductance are selected such that the band stop filter is resonant at a selected frequency. The Q of the inductor may be relatively maximized and the Q of the capacitor may be relatively minimized to reduce the overall Q of the band stop filter to attenuate current flow through the lead wire along a range of selected frequencies. In a preferred form, the band stop filter is integrated into a TIP and/or RING electrode for an active implantable medical device.

    摘要翻译: 为有源医疗装置(AMD)的引线提供带阻滤波器。 带阻滤波器包括与电感并联的电容器。 并联电容器和电感器与AMD的引线串联放置,其中选择电容和电感值,使得阻带滤波器以选定的频率谐振。 电感器的Q可以相对最大化,并且电容器的Q可以相对最小化,以减小带阻滤波器的总体Q,以衰减沿着选定频率的范围通过引线的电流。 在优选形式中,带阻滤波器被集成到用于有源可植入医疗装置的TIP和/或RING电极中。