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    • 3. 发明授权
    • Co-fired electrical feedthroughs for implantable medical devices having a shielded RF conductive path and impedance matching
    • 用于具有屏蔽RF导电路径和阻抗匹配的可植入医疗设备的共同电气馈通
    • US08725263B2
    • 2014-05-13
    • US12533994
    • 2009-07-31
    • Joyce K. YamamotoGregory John Haubrich
    • Joyce K. YamamotoGregory John Haubrich
    • A61N1/00
    • A61N1/3754A61N1/37223
    • A co-fired electrical feedthrough for an implantable medical device (IMD) is provided having a shielded radio frequency (RF) conductive path. The feedthrough includes a monolithic structure derived from one or more layers of dielectric material and a conductive pathway extending through the monolithic structure for communicating RF signals into and from the IMD. An internal shield is formed to extend through at least one of the layers of dielectric material so as to surround the conductive pathway (e.g., in a coaxial relationship) and shield the RF conductive pathway from undesirable signals. This shielding of the RF conductive pathway prevents destructive EMI signals from entering into the IMD through the RF conductive pathway. In some embodiments, a monolithic structure containing embedded impedance matching elements is electrically connected to at least one conductive pathway in the feedthrough to perform impedance matching and/or filtering of the conductive pathway to other circuitry.
    • 提供了一种用于可植入医疗装置(IMD)的共同燃烧电馈通,其具有屏蔽的射频(RF)导电路径。 馈通包括从一个或多个介电材料层导出的整体结构和延伸穿过整体结构的导电路径,用于将IM信号传送到IMD和从IMD传送RF信号。 内部屏蔽形成为延伸穿过介电材料层中的至少一层以便围绕导电路径(例如,以同轴关系)并且屏蔽RF导电路径免受不期望的信号。 RF导电通路的屏蔽防止了破坏性的EMI信号通过RF导电通路进入IMD。 在一些实施例中,包含嵌入式阻抗匹配元件的单片结构电连接到馈通中的至少一个导电路径,以执行到其它电路的导电路径的阻抗匹配和/或滤波。
    • 4. 发明申请
    • Co-Fired Electrical Feedthroughs for Implantable Medical Devices Having a Shielded RF Conductive Path and Impedance Matching
    • 具有屏蔽RF导电路径和阻抗匹配的可植入医疗设备的共同电气馈通
    • US20110029036A1
    • 2011-02-03
    • US12533994
    • 2009-07-31
    • Joyce K. YamamotoGregory John Haubrich
    • Joyce K. YamamotoGregory John Haubrich
    • A61N1/378
    • A61N1/3754A61N1/37223
    • A co-fired electrical feedthrough for an implantable medical device (IMD) is provided having a shielded radio frequency (RF) conductive path. The feedthrough includes a monolithic structure derived from one or more layers of dielectric material and a conductive pathway extending through the monolithic structure for communicating RF signals into and from the IMD. An internal shield is formed to extend through at least one of the layers of dielectric material so as to surround the conductive pathway (e.g., in a coaxial relationship) and shield the RF conductive pathway from undesirable signals. This shielding of the RF conductive pathway prevents destructive EMI signals from entering into the IMD through the RF conductive pathway. In some embodiments, a monolithic structure containing embedded impedance matching elements is electrically connected to at least one conductive pathway in the feedthrough to perform impedance matching and/or filtering of the conductive pathway to other circuitry.
    • 提供了一种用于可植入医疗装置(IMD)的共同燃烧电馈通,其具有屏蔽的射频(RF)导电路径。 馈通包括从一个或多个介电材料层导出的整体结构和延伸穿过整体结构的导电路径,用于将IM信号传送到IMD和从IMD传送RF信号。 内部屏蔽形成为延伸穿过介电材料层中的至少一层以便围绕导电路径(例如,以同轴关系)并且屏蔽RF导电路径免受不期望的信号。 RF导电通路的屏蔽防止了破坏性的EMI信号通过RF导电通路进入IMD。 在一些实施例中,包含嵌入式阻抗匹配元件的单片结构电连接到馈通中的至少一个导电路径,以执行到其它电路的导电路径的阻抗匹配和/或滤波。
    • 7. 发明授权
    • Phased array cofire antenna structure and method for operating the same
    • 相控阵天线结构及其操作方法
    • US08050771B2
    • 2011-11-01
    • US12344980
    • 2008-12-29
    • Joyce K. YamamotoCharles S. Farlow
    • Joyce K. YamamotoCharles S. Farlow
    • A61N1/08
    • H01Q1/273A61N1/37229H01Q3/26
    • An antenna structure for an implantable medical device (IMD) is provided that includes an antenna embedded within a structure derived from a plurality of discrete dielectric layers. An array of electrodes are connected to the antenna structure and arranged for applying a bias across selected segments of the dielectric layers for altering the performance characteristics of the antenna. The bias applied by the array of electrodes can be selected to provide desired impedance matching between the antenna and the surrounding environment of the implant location to mitigate energy reflection effects at the transition from the antenna structure to the surrounding environment, to provide beam steering functionality for the antenna, or to alter the gain of the signals received by the antenna. IMD is configured to monitor received signal characteristics (e.g., RSSI, EVM or bit error rate) and alter material properties of the dielectric material through biasing to control antenna performance.
    • 提供了一种用于可植入医疗装置(IMD)的天线结构,其包括嵌入在由多个离散电介质层衍生的结构内的天线。 电极阵列连接到天线结构,并布置成用于在电介质层的所选段上施加偏置,以改变天线的性能特征。 可以选择由电极阵列施加的偏置以在天线与植入位置的周围环境之间提供期望的阻抗匹配,以减轻在从天线结构向周围环境的转变时的能量反射效应,以提供用于 天线,或改变由天线接收的信号的增益。 IMD被配置为监视接收的信号特性(例如,RSSI,EVM或误码率),并通过偏置来控制天线性能来改变电介质材料的材料特性。
    • 8. 发明申请
    • High Dielectric Substrate Antenna For Implantable Miniaturized Wireless Communications and Method for Forming the Same
    • 用于植入式微型无线通信的高介电基板天线及其形成方法
    • US20100109958A1
    • 2010-05-06
    • US12347379
    • 2008-12-31
    • Gregory J. HaubrichJoyce K. YamamotoDuane N. Mateychuk
    • Gregory J. HaubrichJoyce K. YamamotoDuane N. Mateychuk
    • H01Q1/00H01P11/00
    • H01Q1/27A61B5/0031A61N1/37229H01Q1/38H01Q9/30Y10T29/49016
    • An antenna structure for an implantable medical device (IMD) is provided including a lower dielectric biocompatible antenna portion positioned on a body side of the structure and a high dielectric portion including at least one dielectric substrate having a high dielectric constant positioned on a device side of the structure. The biocompatible antenna portion is derived from an antenna layer, a biocompatible surface layer, and at least one layer of biocompatible dielectric material (e.g., high temperature cofire ceramic (HTCC) material) that provides a matching gradient between the antenna and the surrounding environment. The high dielectric portion may include at least one layer of low temperature cofire ceramic (LTCC) material. The high dielectric portion may be bonded to the biocompatible antenna portion or cofired with the biocompatible antenna portion to form a single bilayer monolithic antenna structure having a lower dielectric HTCC biocompatible antenna portion and a high dielectric LTCC portion.
    • 提供了一种用于植入式医疗装置(IMD)的天线结构,其包括位于该结构体的主体侧的下部电介质生物相容性天线部分和高介电部分,该电介质部分包括至少一个位于器件侧的介电常数的介电基片 结构。 生物相容性天线部分源自天线层,生物相容性表面层,以及提供天线与周围环境之间的匹配梯度的至少一层生物相容介电材料(例如,高温共烧陶瓷(HTCC)材料)。 高电介质部分可以包括至少一层低温烧制陶瓷(LTCC)材料。 高电介质部分可以结合到生物相容性天线部分或与生物相容性天线部分共烧,以形成具有下介电HTCC生物相容性天线部分和高介电LTCC部分的单层双层单片天线结构。
    • 10. 发明授权
    • Multi-path, mono-polar co-fired hermetic electrical feedthroughs and methods of fabrication therfor
    • 多路,单极联合密封电馈电及其制造方法
    • US07164572B1
    • 2007-01-16
    • US11227523
    • 2005-09-15
    • Jeremy W. BurdonJoyce K. Yamamoto
    • Jeremy W. BurdonJoyce K. Yamamoto
    • H01G4/35
    • A61N1/3754H01G9/008
    • An electrical feedthrough assembly according to the invention can be used as a component of an implantable medical device (IMD) and/or or electrochemical cell. An IMD includes implantable pulse generators, cardioverter-defibrillators, physiologic sensors, drug-delivery systems, etc. Such assemblies require biocompatibility and resistance to degradation under applied bias current or voltage. In some forms of the invention, such assemblies are fabricated by using electrically common, multiply-interconnected electrical pathways including metallized vias and interlayer structures of conductive metallic material within bores and between ceramic layers. The layers are stacked together and sintered to form a substantially monolithic dielectric structure with at least one electrically common embedded metallization pathway extending through the structure. The metallization pathway reliably conducts electrical signals even when exposed to body fluids and tissue and providing electrical communication between internal IMD circuitry and active electrical components and/or circuitry coupled to the exterior of an IMD.
    • 根据本发明的电馈通组件可以用作可植入医疗装置(IMD)和/或电化学电池的组件。 IMD包括植入式脉冲发生器,心律转复除颤器,生理传感器,药物递送系统等。这些组件在施加的偏置电流或电压下需要生物相容性和抗降解性。 在本发明的某些形式中,通过使用电通常的,多重互连的电路径制造这种组件,所述电路径包括在孔内和陶瓷层之间的导电金属材料的金属化通孔和层间结构。 这些层堆叠在一起并烧结以形成具有延伸穿过该结构的至少一个电通常的嵌入金属化通路的基本上单片电介质结构。 金属化路径即使暴露于体液和组织也可靠地传导电信号,并提供内部IMD电路与耦合到IMD外部的有源电气部件和/或电路之间的电气通信。