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    Subthreshold lead impedance measurement for subcutaneous device
    2.
    发明授权
    Subthreshold lead impedance measurement for subcutaneous device 有权
    皮下装置的亚阈值导联阻抗测量

    公开(公告)号：US08972005B2

    公开(公告)日：2015-03-03

    申请号：US13795471

    申请日：2013-03-12

    Applicant: Medtronic, Inc.

    Inventor： Marshall J. Rasmussen ,  Forrest C. M. Pape ,  Lonny V. Cabelka

    IPC: A61N1/20 ,  A61N1/378 ,  A61N1/39 ,  A61N1/37 ,  A61N1/362

    CPC classification number: A61N1/378 ,  A61N1/3625 ,  A61N1/3706 ,  A61N1/3912 ,  A61N1/3981

    Abstract: A subthreshold lead impedance technique is described for an implantable medical device. The lead impedance technique may be applicable to a subcutaneous implantable cardioversion defibrillator device and utilizes an output circuit of the device coupled between a first diode and a second diode to define a current path through two electrodes coupled to the output circuit. The second diode is further coupled to a switch to provide a current pathway from the first diode to circuit ground. A control circuit is coupled to the output circuit, the first diode, the second diode, and the switch to bias a leg of the output circuit in a conducting state while biasing the other legs of the output circuit in a non-conducting state.

    Abstract translation: 对于可植入医疗装置描述了亚阈值引线阻抗技术。 引线阻抗技术可以应用于皮下植入式心脏复律除颤器装置，并利用耦合在第一二极管和第二二极管之间的器件的输出电路来限定通过耦合到输出电路的两个电极的电流路径。 第二二极管还耦合到开关以提供从第一二极管到电路接地的电流通路。 控制电路耦合到输出电路，第一二极管，第二二极管和开关，以将导通状态的输出电路的一侧偏压，同时将输出电路的另一个支路偏置在非导通状态。

    TRANSTHORACIC PROTECTION CIRCUIT FOR IMPLANTABLE MEDICAL DEVICES
    6.
    发明申请
    TRANSTHORACIC PROTECTION CIRCUIT FOR IMPLANTABLE MEDICAL DEVICES 有权
    用于可植入医疗器械的TRANSTHORACIC PROTECTION CIRCUIT FOR IMPLANTABLE MEDICAL DEVICES

    公开(公告)号：US20160067511A1

    公开(公告)日：2016-03-10

    申请号：US14695887

    申请日：2015-04-24

    Applicant: Medtronic, Inc.

    Inventor： Marshall J Rasmussen ,  Randolph E Crutchfield ,  Mark R Boone ,  Lonny V Cabelka ,  Kevin P Kuehn ,  Forrest C. M. Pape

    IPC: A61N1/39

    CPC classification number: A61N1/3975 ,  A61N1/3925 ,  A61N1/3956

    Abstract: An implantable medical device includes a low-power circuit, a high-power circuit, and a multi-cell power source. The implantable medical device delivers stimulation therapy to cardiac tissue. The cardioversion energy is delivered across through electrodes that are coupled to terminals of the high-power circuit. A protection circuit for protecting the low-voltage circuit components from high voltage pulses includes a first segment coupled to a first of the electrodes and a second segment coupled to a second of the electrodes, the components of the low-voltage circuit being coupled to the transthoracic protection circuit portion, and a reference potential corresponding to a ground potential, wherein the first and second segments of the transthoracic protection circuit portion are coupled to the reference potential in a parallel configuration.

    Abstract translation: 可植入医疗装置包括低功率电路，高功率电路和多电池电源。 可植入医疗装置将刺激疗法递送至心脏组织。 心电复律能量通过耦合到大功率电路端子的电极传送。 用于保护低电压电路部件免受高电压脉冲的保护电路包括耦合到第一电极的第一段和耦合到第二电极的第二段，低压电路的组件耦合到 经胸廓保护电路部分和对应于地电位的参考电位，其中经胸廓保护电路部分的第一和第二段以并联配置耦合到参考电位。

    Frequency based therapy generation
    8.
    发明授权
    Frequency based therapy generation 有权

    公开(公告)号：US09724521B2

    公开(公告)日：2017-08-08

    申请号：US14682855

    申请日：2015-04-09

    Applicant: Medtronic, Inc.

    Inventor： Peng Cong ,  Timothy J. Denison ,  Gabriela C. Molnar ,  Forrest C. M. Pape ,  Scott R. Stanslaski ,  Wesley A. Santa

    IPC: A61N1/36 ,  A61N1/372

    CPC classification number: A61N1/372 ,  A61N1/36171 ,  A61N1/37252

    Abstract: In some examples, one or more processors determine characteristics of frequency components of a sensed bioelectrical signal. In response to determining the characteristics, the one or more processors determine therapy parameters for frequency components of a stimulation signal. The one or more processors may determine the therapy parameters based on the characteristics of the frequency components of the sensed bioelectrical signal. As another example, the one or more processors may determine the therapy parameters based on received information after the characteristics of the frequency components of the sensed bioelectrical signal are displayed to a user.

    Transthoracic protection circuit for implantable medical devices
    10.
    发明授权
    Transthoracic protection circuit for implantable medical devices 有权
    用于植入式医疗器械的胸腔保护电路

    公开(公告)号：US09539435B2

    公开(公告)日：2017-01-10

    申请号：US14695887

    申请日：2015-04-24

    Applicant: Medtronic, Inc.

    Inventor： Marshall J Rasmussen ,  Randolph E Crutchfield ,  Mark R Boone ,  Lonny V Cabelka ,  Kevin P Kuehn ,  Forrest C. M. Pape

    IPC: A61N1/00 ,  A61N1/39

    CPC classification number: A61N1/3975 ,  A61N1/3925 ,  A61N1/3956

    Abstract: An implantable medical device includes a low-power circuit, a high-power circuit, and a multi-cell power source. The implantable medical device delivers stimulation therapy to cardiac tissue. The cardioversion energy is delivered across through electrodes that are coupled to terminals of the high-power circuit. A protection circuit for protecting the low-voltage circuit components from high voltage pulses includes a first segment coupled to a first of the electrodes and a second segment coupled to a second of the electrodes, the components of the low-voltage circuit being coupled to the transthoracic protection circuit portion, and a reference potential corresponding to a ground potential, wherein the first and second segments of the transthoracic protection circuit portion are coupled to the reference potential in a parallel configuration.

    Abstract translation: 可植入医疗装置包括低功率电路，高功率电路和多电池电源。 可植入医疗装置将刺激疗法递送至心脏组织。 心电复律能量通过耦合到大功率电路端子的电极传送。 用于保护低电压电路部件免受高电压脉冲的保护电路包括耦合到第一电极的第一段和耦合到第二电极的第二段，低压电路的组件耦合到 经胸廓保护电路部分和对应于地电位的参考电位，其中经胸廓保护电路部分的第一和第二段以并联配置耦合到参考电位。

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