Shielded RF distance telemetry pin wiring for active implantable medical devices
    111.
    发明授权
    Shielded RF distance telemetry pin wiring for active implantable medical devices 有权
    用于有源植入式医疗设备的屏蔽RF距离遥测引脚接线

    公开(公告)号:US08160705B2

    公开(公告)日:2012-04-17

    申请号:US11307306

    申请日:2006-01-31

    CPC classification number: H05K9/0039 A61N1/3718 A61N1/3754 H01G4/35

    Abstract: In an electromagnetic interference (EMI) filter terminal for an active implantable medical device (AIMD), an insulated and shielded RF telemetry pin is provided to prevent re-radiation of unwanted stray signals, including the telemetry signal itself, to adjacent sensitive circuits or lead wires. The invention provides for an EMI filter terminal assembly for an AIMD including a radio frequency (RF) telemetry pin antenna extending therethrough. The RF telemetry pin antenna includes a conductive shield extending over a portion of the RF telemetry pin antenna in non-conductive relation with the telemetry pin, and conductively connected to a ground associated with the AIMD. The assembly may also include an insulation tube between the RF telemetry pin antenna and the conductive shield covering a portion of the RF telemetry pin antenna.

    Abstract translation: 在有源可植入医疗设备(AIMD)的电磁干扰(EMI)滤波器端子中,提供绝缘和屏蔽的RF遥测引脚,以防止包括遥测信号本身在内的不需要的杂散信号重新辐射到相邻的敏感电路或导线 电线 本发明提供一种用于AIMD的EMI滤波器终端组件,其包括从其延伸的射频(RF)遥测针天线。 RF遥测引脚天线包括导电屏蔽件,该导电屏蔽件与RF遥测针脚天线的一部分以遥控销的非导通关系延伸,并且导电地连接到与AIMD相关联的地面。 组件还可以包括在RF遥测针天线和覆盖RF遥测针天线的一部分的导电屏蔽之间的绝缘管。

    Medical lead system utilizing electromagnetic bandstop filters
    112.
    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

    Abstract: 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.

    Abstract translation: 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。

    MULTILAYER HELICAL WAVE FILTER FOR MRI APPLICATIONS
    116.
    发明申请
    MULTILAYER HELICAL WAVE FILTER FOR MRI APPLICATIONS 审中-公开
    用于MRI应用的多层螺旋波滤波器

    公开(公告)号:US20110288403A1

    公开(公告)日:2011-11-24

    申请号:US13193495

    申请日:2011-07-28

    Abstract: A multilayer helical wave filter having a primary resonance at a selected MRI RF pulsed frequency or frequency range, includes an elongated conductor forming at least a portion of an implantable medical lead. The elongated conductor includes a first helically wound segment having at least one planar surface, a first end and a second end, which forms a first inductive component, and a second helically wound segment having at least one planar surface, a first end and a second end, which forms a second inductive element. The first and second helically wound segments are wound in the same longitudinal direction and share a common longitudinal axis. Planar surfaces of the helically wound segments face one another, and a dielectric material is disposed between the facing planar surfaces of the helically wound segments and between adjacent coils of the helically wound segments, thereby forming a capacitance.

    Abstract translation: 在选定的MRI RF脉冲频率或频率范围内具有初级共振的多层螺旋波滤波器包括形成可植入医疗引线的至少一部分的细长导体。 细长导体包括具有至少一个平坦表面的第一螺旋缠绕段,形成第一感应组件的第一端和第二端,以及具有至少一个平坦表面的第二螺旋缠绕段,第一端和第二端 端部,其形成第二电感元件。 第一和第二螺旋缠绕段在相同的纵向缠绕并共享共同的纵向轴线。 螺旋缠绕段的平面表面彼此面对,并且电介质材料设置在螺旋缠绕段的相对的平坦表面之间和螺旋缠绕段的相邻线圈之间,从而形成电容。

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