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    Transformer-based charging circuits for implantable medical devices
    2.
    发明授权
    Transformer-based charging circuits for implantable medical devices 有权
    用于可植入医疗器械的基于变压器的充电电路

    公开(公告)号：US09579517B2

    公开(公告)日：2017-02-28

    申请号：US14695630

    申请日：2015-04-24

    申请人： Medtronic, Inc.

    发明人： John T Meador ,  Randolph E Crutchfield ,  Mark R Boone ,  Lonny V Cabelka

    IPC分类号： A61N1/00 ,  A61N1/39

    CPC分类号： A61N1/3975 ,  A61N1/3925 ,  A61N1/3956

    摘要： An implantable medical device includes a low-power circuit, a high-power circuit, and a dual-cell power source. The power source is coupled to a transformer having first and second primary windings, each of which is selectively coupled to the power source and a plurality of secondary windings that are magnetically coupled to the first and second primary windings. The plurality of secondary windings are interlaced along a length of each of the secondary windings. Each of the plurality of secondary transformer windings is coupled to a capacitor, and the capacitors are all connected in a series configuration. The low power circuit is coupled to the power source and issues a control signal to control the delivery of charge from the power source to the plurality of capacitors through the first and second transformers.

    摘要翻译： 可植入医疗装置包括低功率电路，高功率电路和双电池电源。 电源耦合到具有第一和第二初级绕组的变压器，每个初级绕组选择性地耦合到电源和多个次级绕组，其被磁耦合到第一和第二初级绕组。 多个次级绕组沿着每个次级绕组的长度交织。 多个次级变压器绕组中的每一个耦合到电容器，并且电容器都以串联配置连接。 低功率电路耦合到电源并且发出控制信号以控制通过第一和第二变压器从电源向多个电容器传送电荷。

    IMPLANTABLE MEDICAL DEVICE HAVING ISOLATED MULTI-CELL POWER SOURCES
    4.
    发明申请
    IMPLANTABLE MEDICAL DEVICE HAVING ISOLATED MULTI-CELL POWER SOURCES 有权
    具有隔离多个电源的可植入医疗设备

    公开(公告)号：US20160067512A1

    公开(公告)日：2016-03-10

    申请号：US14844697

    申请日：2015-09-03

    申请人： Medtronic, Inc.

    发明人： John D Norton ,  Andrew J. Ries ,  Randolph E Crutchfield

    IPC分类号： A61N1/39

    CPC分类号： A61N1/3975 ,  A61N1/378 ,  A61N1/3782 ,  A61N1/3931 ,  A61N1/3956 ,  A61N1/3981

    摘要： Implantable medical device systems of the present disclosure may include a subcutaneous implantable cardioverter defibrillator (SICD) that is powered by a multi-cell power source that is connected to a transformer and power conversion circuitry to charge one or more relatively small, but powerful, high voltage capacitors to provide a relatively high discharge voltage. The SICD includes electrical isolation for the multi-cell power source to protect against cross-charging between the cells during the operational lifetime of the SICD.

    摘要翻译： 本公开的可植入医疗装置系统可以包括皮下植入式心律转复除颤器（SICD），该皮下植入式心律转复除颤器由多单元电源供电，所述多单元电源连接到变压器和电力转换电路，以对一个或多个相对小但强大的高 电压电容器提供相对较高的放电电压。 SICD包括多单元电源的电隔离，以防止在SICD的使用寿命期间电池之间的交叉充电。

    Transthoracic protection circuit for implantable medical devices
    6.
    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

    申请人： Medtronic, Inc.

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

    IPC分类号： A61N1/00 ,  A61N1/39

    CPC分类号： A61N1/3975 ,  A61N1/3925 ,  A61N1/3956

    摘要： 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.

    摘要翻译： 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。

    Therapy delivery method and system for implantable medical devices
    9.
    发明授权
    Therapy delivery method and system for implantable medical devices 有权

    公开(公告)号：US09526910B2

    公开(公告)日：2016-12-27

    申请号：US14536881

    申请日：2014-11-10

    申请人： Medtronic, Inc.

    发明人： Randolph E Crutchfield ,  Lonny V Cabelka ,  Mark R Boone ,  Marshall J Rasmussen

    IPC分类号： A61N1/39 ,  A61N1/37

    CPC分类号： A61N1/3981 ,  A61N1/371 ,  A61N1/3906 ,  A61N1/3956 ,  A61N1/3987

    摘要： Recent advancements in power electronics technology have provided opportunities for enhancements to circuits of implantable medical devices. The enhancements have contributed to increasing circuit miniaturization and an increased efficiency in the operation of the implantable medical devices. The therapy delivery circuits and techniques of the disclosure facilitate generation of a therapy stimulation waveform that may be shaped based on the patient's physiological response to the stimulation waveform. The generated therapy stimulation waveforms include a stepped leading-edge that may be shaped having a varying slope and varying amplitudes associated with each of the segments of the slope. Unlike the truncated exponential waveform delivered by the conventional therapy delivery circuit which is based on the behavior of the output capacitors (i.e., i=C(dV/dt)), the stimulation waveform of the present disclosure may be dynamically shaped as a function of an individual patient's response. The dynamically shaped therapy stimulation waveforms facilitate achieving lower capture thresholds which reduces the device's supply consumption thereby increasing longevity of the device and facilitate a reduction of tissue damage.

    TRANSTHORACIC PROTECTION CIRCUIT FOR IMPLANTABLE MEDICAL DEVICES
    10.
    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

    申请人： Medtronic, Inc.

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

    IPC分类号： A61N1/39

    CPC分类号： A61N1/3975 ,  A61N1/3925 ,  A61N1/3956

    摘要： 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.

    摘要翻译： 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。