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    Method and apparatus for intra-body ultrasound communication
    111.
    发明授权
    Method and apparatus for intra-body ultrasound communication 有权
    体内超声波通信的方法和装置

    公开(公告)号：US08938307B2

    公开(公告)日：2015-01-20

    申请号：US13648831

    申请日：2012-10-10

    Applicant: Cardiac Pacemakers, Inc.

    Inventor： Scot C. Boon ,  Keith R. Maile ,  William J. Linder ,  Paul Huelskamp ,  Ramprasad Vijayagopal

    IPC: A61N1/36 ,  A61N1/372 ,  H04B11/00 ,  H04B13/00

    CPC classification number: A61N1/37217 ,  A61N1/3727 ,  H04B11/00 ,  H04B13/005

    Abstract: An intra-body ultrasonic signal can be converted into a first electrical signal, a local oscillator signal can be generated in an implantable system. The first electrical signal and the local oscillator signal can be mixed in an implantable system, such as to generate a demodulated signal, processed, such as using a filter. The filtered, demodulated signal can be further processed, such as implantably determining a peak amplitude of the first portion of the demodulated signal received from the filter over a time interval, implantably generating a dynamic tracking threshold that starts at an amplitude proportional the first portion of the demodulated signal and exponentially decays over a time interval, and determining a noise floor in the absence of a received intra-body ultrasonic signal and implantably comparing the peak amplitude and the tracking threshold and generate the digital output based on the difference.

    Abstract translation: 体内超声波信号可以转换成第一电信号，在可植入系统中可以产生本地振荡器信号。 第一电信号和本地振荡器信号可以在可植入系统中混合，例如产生经处理的解调信号，例如使用滤波器。 滤波后的解调信号可被进一步处理，诸如可植入地确定在时间间隔上从滤波器接收的解调信号的第一部分的峰值幅度，可植入地产生动态跟踪阈值，该动态跟踪阈值以与第 所述解调信号在时间间隔上指数衰减，以及在没有接收到的体内超声波信号的情况下确定噪声基底，并且可植入地比较所述峰值幅度和跟踪阈值，并且基于所述差异生成所述数字输出。

    Performance assessment and adaptation of an acoustic communication link
    113.
    发明授权
    Performance assessment and adaptation of an acoustic communication link 有权
    声学通信链路的性能评估和调整

    公开(公告)号：US08594802B2

    公开(公告)日：2013-11-26

    申请号：US13781476

    申请日：2013-02-28

    Applicant: Cardiac Pacemakers, Inc.

    Inventor： Jeffrey E. Stahmann ,  Keith R. Maile ,  Paul J. Huelskamp

    IPC: A61N1/00

    CPC classification number: A61N1/37211 ,  A61N1/3706 ,  A61N1/37217

    Abstract: Systems and methods for adapting the performance of a wireless communication link with an implantable medical device (IMD) are disclosed. An illustrative method includes initiating a wireless link with the IMD, measuring an initial performance of the wireless link, determining whether the initial performance of the wireless link is adequate, adjusting an operating parameter related to the wireless link in the event the initial performance of the wireless link is inadequate, measuring a performance of the wireless link in response to the adjusted operating parameter, and setting the operating parameter to a prior setting if the measured performance of the wireless link does not improve in response to the adjusted operating parameter.

    Abstract translation: 公开了用于使可植入医疗装置（IMD）的无线通信链路的性能适应的系统和方法。 一种说明性的方法包括发起与IMD的无线链路，测量无线链路的初始性能，确定无线链路的初始性能是否足够，调整与无线链路有关的操作参数， 无线链路不足，响应于经调整的操作参数测量无线链路的性能，并且如果无线链路的测量性能响应于调整的操作参数而没有改善，则将操作参数设置为先前设置。

    ELECTROSTATIC DISCHARGE PROTECTION CIRCUIT
    114.
    发明申请
    ELECTROSTATIC DISCHARGE PROTECTION CIRCUIT 有权
    静电放电保护电路

    公开(公告)号：US20130208383A1

    公开(公告)日：2013-08-15

    申请号：US13755948

    申请日：2013-01-31

    Applicant: Cardiac Pacemakers, Inc.

    Inventor： Keith R. Maile ,  William J. Linder ,  Lance E. Juffer ,  Nicholas J. Stessman ,  Ron A. Balczewski

    IPC: H02H9/04

    CPC classification number: H02H9/041 ,  A61N1/3718 ,  H02H9/046

    Abstract: An integrated circuit for an implantable medical device can include a substrate, a first capacitor, and an electrostatic discharge (ESD) protection circuit. The first capacitor can include an electrically conductive lower polysilicon terminal and an electrically conductive upper polysilicon terminal that can be separated from the lower polysilicon terminal by a first capacitor dielectric material. The ESD protection circuit can include an ESD shunt transistor and a second capacitor. The ESD shunt transistor can be configured to be normally off, but can be configured to turn on and conduct between first and second power supply rails in response to an ESD event exceeding a specified ESD event threshold value. The second capacitor can includes a first substrate terminal and an electrically conductive second polysilicon terminal that can be separated from the first substrate terminal by a second capacitor dielectric material.

    Abstract translation: 用于可植入医疗装置的集成电路可以包括衬底，第一电容器和静电放电（ESD）保护电路。 第一电容器可以包括导电的下多晶硅端子和可以通过第一电容器电介质材料与下多晶硅端子分离的导电上多晶硅端子。 ESD保护电路可以包括ESD分流晶体管和第二电容器。 ESD分流晶体管可以被配置为通常关闭，但是可以被配置为响应于ESD事件超过指定的ESD事件阈值而在第一和第二电源轨之间导通和导通。 第二电容器可以包括第一衬底端子和可以通过第二电容器电介质材料与第一衬底端子分离的导电的第二多晶硅端子。

    IMD enclosure formed using dielectric materials incorporating feedthru(s)
    115.
    发明授权
    IMD enclosure formed using dielectric materials incorporating feedthru(s) 有权

    公开(公告)号：US12285620B2

    公开(公告)日：2025-04-29

    申请号：US17495952

    申请日：2021-10-07

    Applicant: Cardiac Pacemakers, Inc.

    Inventor： Jean M. Bobgan ,  James M. English ,  Keith R. Maile ,  Ron A. Balczewski

    IPC: A61N1/375 ,  A61N1/372

    Abstract: Embodiments of the present disclosure relate to implantable medical device (IMD) enclosures. In an exemplary embodiment, an IMD comprises: a housing comprising an open end and a header defining a cavity and comprising at least one conduit through a wall of the header, wherein the header is formed from a non-conductive material. Further, the IMD comprises a coupling member comprising a flange, wherein the flange is configured to be received by the open end of the housing and wherein the flange and the open end of the housing at least partially overlap along an axial direction of the IMD when the flange is received by the open end. Additionally, the IMD comprises an electrode arranged on an outer surface of the header and a feedthrough coupled to the electrode and extending through the conduit of the header, wherein the feedthrough is configured to be coupled to internal circuitry housed within the IMD. Further, the IMD comprises a ring forming a hermetic seal between the coupling member and the header.

    Leadless cardiac pacing devices
    117.
    发明授权
    Leadless cardiac pacing devices 有权

    公开(公告)号：US12161863B2

    公开(公告)日：2024-12-10

    申请号：US18141183

    申请日：2023-04-28

    Applicant: CARDIAC PACEMAKERS, INC.

    Inventor： Benjamin J. Haasl ,  Dana Sachs ,  Keith R. Maile

    IPC: A61N1/05 ,  A61N1/362 ,  A61N1/372 ,  A61N1/375

    Abstract: Implantable leadless pacing devices and medical device systems including an implantable leadless pacing device are disclosed. An example implantable leadless pacing device may include a pacing capsule. The pacing capsule may include a housing. The housing may have a proximal region and a distal region. A first electrode may be disposed along the distal region. One or more anchoring members may be coupled to the distal region. The anchoring members may each include a region with a compound curve.

    DEEP TISSUE OPTICAL SENSING DEVICES AND METHODS
    120.
    发明申请
    DEEP TISSUE OPTICAL SENSING DEVICES AND METHODS 有权

    公开(公告)号：US20230081138A1

    公开(公告)日：2023-03-16

    申请号：US17944582

    申请日：2022-09-14

    Applicant: Cardiac Pacemakers, Inc.

    Inventor： Jeffrey E. Stahmann ,  Keith R. Maile

    IPC: A61B5/00

    Abstract: Embodiments herein relate to devices and methods for deep tissue optical sensing. In an embodiment, an optical monitoring device is included having a first optical emitter, where the first optical emitter is configured to emit light at a first wavelength. The optical monitoring device includes a first optical detector, where the first optical detector is configured to selectively detect incident light with respect to its angle of incidence on the optical monitoring device. The first optical emitter is configured so that the emitted light from the optical emitter propagates through a tissue at a depth of at least 1 cm into the tissue as measured from a surface of the optical monitoring device. The optical monitoring device is configured to determine a physiological parameter of the tissue using incident light detected by the first optical detector. Other embodiments are also included herein.

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