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    External RF telemetry module for implantable medical devices
    2.
    发明授权
    External RF telemetry module for implantable medical devices 有权
    用于可植入医疗器械的外部RF遥测模块

    公开(公告)号：US08626310B2

    公开(公告)日：2014-01-07

    申请号：US12347540

    申请日：2008-12-31

    申请人： Michael William Barror ,  William D. Verhoef ,  Joyce K. Yamamoto ,  Robert S. Wentink ,  Gregory J. Haubrich

    发明人： Michael William Barror ,  William D. Verhoef ,  Joyce K. Yamamoto ,  Robert S. Wentink ,  Gregory J. Haubrich

    IPC分类号： A61N1/08

    CPC分类号： A61N1/37229 ,  A61N1/025 ,  A61N1/3718 ,  A61N1/375 ,  A61N1/3754 ,  H01Q1/273 ,  H01Q9/27

    摘要： An implantable medical device (“IMD”) is provided having an antenna and an RF telemetry module for far field telemetry communications arranged on an exterior of the IMD housing, such that telemetry signal processing may be performed on the exterior of the housing. One or more feedthrough conductive paths extend through the housing to communicatively couple the RF module to circuitry within the housing. In this manner RF module is arranged entirely external to the housing, such that only power and/or low frequency data bit signals are required to be passed through the feedthrough conductive path. This allows the feedthrough conductive path to be filtered to prevent undesired interference signals (e.g., electromagnetic interference (EMI) signals) from entering the housing through the feedthrough conductive path coupled to the RF module. In some embodiments, the antenna and RF module are formed in an integrated assembly attachable to an exterior portion of the housing.

    摘要翻译： 提供了一种植入式医疗装置（“IMD”），其具有设置在IMD外壳外部的用于远场遥测通信的天线和RF遥测模块，从而可以在外壳的外部执行遥测信号处理。 一个或多个馈通导电路径延伸穿过壳体，以将RF模块通信地耦合到壳体内的电路。 以这种方式，RF模块完全布置在壳体的外部，使得仅需要电力和/或低频数据位信号通过馈通导电路径。 这允许馈通导电路径被滤波以防止不期望的干扰信号（例如，电磁干扰（EMI）信号））通过耦合到RF模块的馈通导电路径进入壳体。 在一些实施例中，天线和RF模块形成为可附接到外壳的外部部分的集成组件。

    MEDICAL DEVICE HAVING A MULTI-ELEMENT ANTENNA
    3.
    发明申请
    MEDICAL DEVICE HAVING A MULTI-ELEMENT ANTENNA 审中-公开
    具有多元素天线的医疗装置

    公开(公告)号：US20120026009A1

    公开(公告)日：2012-02-02

    申请号：US13191857

    申请日：2011-07-27

    申请人： Yanzhu Zhao ,  Gregory J. Haubrich ,  Quentin S. Denzene

    发明人： Yanzhu Zhao ,  Gregory J. Haubrich ,  Quentin S. Denzene

    IPC分类号： G08C17/00

    CPC分类号： A61N1/37229 ,  H04Q9/00 ,  H04Q2209/43 ,  H04Q2209/823

    摘要： Medical devices are provided with multi-element antenna systems that may function to automatically tune the antenna as a function of the operating environment of the medical device. The tuning methodology may incorporate a multi-element antenna having a variable capacitive element on a first of the antenna elements with that antenna element being driven by a second of the antenna elements. In an embodiment, a multi-element antenna system may acquire measurements of predefined criteria and the antenna may be tuned as a function of the measured criteria to optimize operation of the antenna in both reception and transmission of signals. In so doing the antenna impedance can be matched to the transmission line impedance.

    摘要翻译： 医疗设备设置有多元天线系统，其可以用作根据医疗设备的操作环境来自动调谐天线的功能。 调谐方法可以包括在第一天线元件上具有可变电容元件的多元件天线，该天线元件由第二天线元件驱动。 在一个实施例中，多元天线系统可以获取预定准则的测量值，并且可以根据所测量的标准来调整天线，以在信号的接收和传输中优化天线的操作。 通过这样做，天线阻抗可以匹配传输线阻抗。

    Implantable device including multiple communication antennas
    5.
    发明授权
    Implantable device including multiple communication antennas 失效
    可植入装置包括多个通信天线

    公开(公告)号：US07672731B2

    公开(公告)日：2010-03-02

    申请号：US11109995

    申请日：2005-04-20

    申请人： Garry L. Dublin ,  Gregory J. Haubrich ,  Chris C. Fuller ,  Piotr Przybyszewski ,  Len D. Twetan ,  William D. Verhoef

    发明人： Garry L. Dublin ,  Gregory J. Haubrich ,  Chris C. Fuller ,  Piotr Przybyszewski ,  Len D. Twetan ,  William D. Verhoef

    IPC分类号： A61N1/02

    CPC分类号： A61N1/37223 ,  A61N1/37229

    摘要： An implantable device, such as an implantable medical device (IMD) includes at least two radio frequency (RF) antennas and may additionally include an RF communication circuit. The RF antennas are spatially diverse, are disposed adjacent a housing, and are each configured to receive RF signals transmitted to the IMD from a remote RF signal source. The RF communication circuit, if included, is disposed within the housing and is configured to selectively receive the RF signals received by one or more of the spatially diverse RF antennas.

    摘要翻译： 诸如可植入医疗装置（IMD）的可植入装置包括至少两个射频（RF）天线，并且还可以包括RF通信电路。 RF天线在空间上是不同的，被设置在与壳体相邻的位置，并且每个被配置为从远程RF信号源接收发射到IMD的RF信号。 如果包括RF通信电路，RF通信电路被布置在壳体内并且被配置为选择性地接收由一个或多个空间多样的RF天线接收的RF信号。

    Telemetry antenna for an implantable medical device
    6.
    发明授权
    Telemetry antenna for an implantable medical device 失效
    用于可植入医疗器械的遥测天线

    公开(公告)号：US07016733B2

    公开(公告)日：2006-03-21

    申请号：US10421179

    申请日：2003-04-23

    申请人： Garry L. Dublin ,  William D. Verhoef ,  Rodney S. Wallace ,  Len D. Twetan ,  Eugene Kuschnir ,  Gregory J. Haubrich ,  Piotr J Przybyszewski ,  Christine G. Kronich ,  Bonnie Dougherty, legal representative

    发明人： Eduardo H. Villaseca, deceased

    IPC分类号： A61N1/365

    CPC分类号： A61N1/37229 ,  A61N1/375

    摘要： Improved telemetry antennas and methods of fabrication for an implantable medical device (IMD) for use in uplink telemetry (UT) and downlink telemetry (DT) transmissions between the IMD and an external medical device (EMD) are disclosed. A first telemetry antenna element is supported to extend in a first direction along a minor side of the IMD housing by a first header segment, and a second antenna element is supported to extend in a second direction along a second minor side of the IMD housing by a second header segment. The first and second antenna elements are supported to extend apart at substantially 90° to one another, i.e., substantially orthogonally, in substantially a common plane to optimize UT transmission and DT reception of UHF telemetry signals by at least one of the first and second antenna elements depending upon the mutual spatial orientation with the antenna elements of an EMD antenna.

    摘要翻译： 公开了改进的遥测天线和用于在IMD和外部医疗设备（EMD）之间的上行链路遥测（UT）和下行链路遥测（DT）传输中使用的可植入医疗设备（IMD）的制造方法。 第一遥测天线元件被支撑以沿第一方向沿IMD外壳的次侧通过第一头部段延伸，并且第二天线元件被支撑以沿IMD外壳的第二小侧在第二方向上延伸， 第二标题段。 第一和第二天线元件被支撑以在基本上共同的平面中彼此基本上90°彼此延伸分开，即基本正交地延伸，以通过第一和第二天线中的至少一个来优化UHF遥测信号的UT传输和DT接收 取决于与EMD天线的天线元件的相互空间取向的元件。

    Zero IF receiver with reduced AM detector
    8.
    发明授权
    Zero IF receiver with reduced AM detector 失效
    零IF接收机具有减少的AM检测

    公开(公告)号：US06671332B1

    公开(公告)日：2003-12-30

    申请号：US09415693

    申请日：1999-10-08

    申请人： Gregory J. Haubrich

    发明人： Gregory J. Haubrich

    IPC分类号： H03D300

    CPC分类号： H04L27/1525

    摘要： A circuit for providing phase shifted I and Q output signals from a received FSK modulated signal and the method of its operation. The circuit includes apparatus for receiving an FSK modulated signal, first, second and third mixers, to which the received FSK modulated signal is applied, a local oscillator, generating an oscillator signal and phase shifters providing first, second and third phase shifted versions of the oscillator signal to the first, second and third mixers to produce first, second and third mixer output signals which are likewise phase shifted. The mixer output signals are provided to summing circuits providing an I output signal corresponding to the difference between the first and second mixer output signals a Q output signal corresponding to the difference between the second and third mixer output signals. The second version of the oscillator signal may be shifted 90 degrees relative to the first version of the oscillator signal and the third version of the oscillator signal may be shifted 90 degrees relative to the second version of the oscillator signal. Preferably the first, second and third mixers are all fabricated on the same integrated circuit chip.

    摘要翻译： 用于从接收的FSK调制信号中提供相移I和Q输出信号的电路及其操作方法。 该电路包括用于接收FSK调制信号的装置，被应用接收的FSK调制信号的第一，第二和第三混频器，本地振荡器，产生振荡器信号和提供第一，第二和第三相移版本的移相器 振荡器信号发送到第一，第二和第三混频器以产生同样相移的第一，第二和第三混频器输出信号。 混频器输出信号被提供给求和电路，提供对应于第一和第二混频器输出信号之间的差分的I输出信号，与对应于第二和第三混频器输出信号之间的差的Q输出信号。 振荡器信号的第二版本可以相对于振荡器信号的第一版本偏移90度，并且振荡器信号的第三版本可以相对于振荡器信号的第二版本偏移90度。 优选地，第一，第二和第三混合器都制造在相同的集成电路芯片上。

    Implantable medical device incorporating miniaturized circuit module
    9.
    发明授权
    Implantable medical device incorporating miniaturized circuit module 有权
    具有小型化电路模块的植入式医疗器械

    公开(公告)号：US06567703B1

    公开(公告)日：2003-05-20

    申请号：US09708307

    申请日：2000-11-08

    申请人： David L. Thompson ,  Gregory J. Haubrich

    发明人： David L. Thompson ,  Gregory J. Haubrich

    IPC分类号： A61N100

    CPC分类号： A61N1/3758 ,  A61N1/37223 ,  Y10S977/932 ,  Y10S977/94

    摘要： Implantable medical devices (IMDS) having RF telemetry capabilities for uplink transmitting patient data and downlink receiving programming commands to and from an external programmer having an improved RF module configured to occupy small spaces within the IMD housing to further effect the miniaturization thereof. An RF module formed of an RF module substrate and at least one IC chip and discrete components has a volume and dimensions that are optimally minimized to reduce its volumetric form factor. Miniaturization techniques include: (1) integrating inductors into one or more IC chips mounted to the RF module substrate; (2) mounting each IC chip into a well of the RF module substrate and using short bonding wires to electrically connect bond pads of the RF module substrate and the IC chip; and (3) surface mounting discrete capacitors over IC chips to reduce space taken up on the RF module substrate. The integrated inductors are preferably fabricated as planar spiral wound conductive traces formed of high conductive metals to reduce trace height and width while maintaining low resistance, thereby reducing parasitic capacitances between adjacent trace side walls and with a ground plane of the IC chip. The spiral winding preferably is square or rectangular, but having truncated turns to eliminate 90° angles that cause point-to-point parasitic capacitances. The planar spiral wound conductive traces are further preferably suspended over the ground plane of the RF module substrate by micromachining underlying substrate material away to thereby reduce parasitic capacitances.

    摘要翻译： 具有用于上行链路的RF遥测能力的可植入医疗设备（IMDS）用于上行链路发送患者数据，以及下行链路接收来自具有改进的RF模块的外部编程器的编程命令，该改进的RF模块被配置为占据IMD外壳内的小空间以进一步实现其小型化。 由RF模块基板和至少一个IC芯片和分立元件形成的RF模块具有最佳化的体积和尺寸以减小其体积形状因数。 小型化技术包括：（1）将电感器集成到安装到RF模块衬底的一个或多个IC芯片中; （2）将每个IC芯片安装到RF模块基板的阱中，并使用短接合线来电连接RF模块基板和IC芯片的接合焊盘; 和（3）通过IC芯片表面安装分立电容，以减少RF模块基板上占用的空间。 集成电感器优选地被制造为由高导电金属形成的平面螺旋卷绕导电迹线，以便在保持低电阻的同时降低迹线高度和宽度，从而降低相邻迹线侧壁与IC芯片的接地平面之间的寄生电容。 螺旋绕组优选地是正方形或矩形，但具有截尖以消除导致点对点寄生电容的90°角。 平面螺旋卷绕导电迹线进一步优选通过将下面的衬底材料微加工而远离RF模块衬底的接地平面，从而减小寄生电容。

    Low energy consumption RF telemetry control for an implantable medical device
    10.
    发明授权
    Low energy consumption RF telemetry control for an implantable medical device 失效
    用于可植入医疗设备的低能耗RF遥测控制

    公开(公告)号：US06456887B1

    公开(公告)日：2002-09-24

    申请号：US09736625

    申请日：2000-12-14

    申请人： Charles H. Dudding ,  Gregory J. Haubrich

    发明人： Charles H. Dudding ,  Gregory J. Haubrich

    IPC分类号： G08C1702

    CPC分类号： A61N1/37276 ,  A61N1/37252 ,  A61N1/3727

    摘要： In an implantable medical device, a frequency synthesizer employed in the RF transceiver of the IMD operating system functions in a PLL LOCK mode wherein the VCO frequency is governed by the PLL and an energy saving HOLD mode wherein the PLL is not operational and the VCO generated carrier frequency can drift over time. The PLL circuit is powered up and coupled with a control voltage input and the output of the VCO to develop a frequency control voltage stored by a capacitive loop filter during initial LOCK portions of both uplink and downlink telemetry transmission time periods. A frequency modulation (FM) input of the VCO receives data bit modulation voltages that modulates the carrier frequency during uplink transmission of patient data. During the HOLD portion of a downlink telemetry transmission, an AFC algorithm is enabled and derives a frequency correction value from the difference in frequency of the constant received carrier frequency and the drifting VCO generated carrier frequency, and the frequency correction value is applied to the VCO FM input to compensate for loop filter capacitor discharge of the control voltage causing the drift. The AFC algorithm derived frequency correction value is stored in memory and is also applied during the HOLD portion of an uplink telemetry transmission to the VCO FM input to compensate for loop filter capacitor discharge of the control voltage causing the drift. In addition, a recharge current is applied to the capacitive loop filter.

    摘要翻译： 在可植入医疗设备中，在IMD操作系统的RF收发器中使用的频率合成器以PLL锁定模式工作，其中VCO频率由PLL控制，并且节能HOLD模式，其中PLL不工作，并且VCO产生 载波频率随时间漂移。 PLL电路上电并与控制电压输入和VCO的输出耦合，以在上行链路和下行链路传输时间段的初始LOCK部分期间开发由电容性环路滤波器存储的频率控制电压。 VCO的频率调制（FM）输入接收在患者数据的上行链路传输期间调制载波频率的数据比特调制电压。 在下行链路遥测传输的HOLD部分期间，启用AFC算法，并且根据恒定接收载波频率和漂移VCO产生的载波频率的差异导出频率校正值，并且将频率校正值应用于VCO FM输入补偿环路滤波电容放电的控制电压导致漂移。 AFC算法导出的频率校正值存储在存储器中，并且在上行链路遥测传输的HOLD部分期间也施加到VCO FM输入端，以补偿导致漂移的控制电压的环路滤波电容放电。 此外，充电电流被施加到电容性环路滤波器。