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    PACING ARTIFACT MITIGATION
    4.
    发明公开
    PACING ARTIFACT MITIGATION 审中-公开

    公开(公告)号：US20240138741A1

    公开(公告)日：2024-05-02

    申请号：US18370166

    申请日：2023-09-19

    Applicant: Medtronic, Inc.

    Inventor： David J. Peichel ,  Timothy C. Aarons ,  Subham Ghosh ,  Michael T. Hemming

    IPC: A61B5/333

    CPC classification number: A61B5/333 ,  A61B5/725

    Abstract: Various embodiments of a system are disclosed. The system includes a sensing apparatus configured to monitor cardiac electrical activity of a patient and a computing apparatus operatively coupled to the sensing apparatus and configured to monitor cardiac electrical activity using the sensing apparatus to generate a cardiac signal over time, detect a pacing artifact in the cardiac signal, and determine to account for the pacing artifact when using the cardiac signal based on at least one pacing artifact characteristic of the pacing artifact in the cardiac signal. The computing apparatus is further configured to account for the pacing artifact when using the cardiac signal if it is determined to account for the pacing artifact.

    CONFIRMING SENSED ATRIAL EVENTS FOR PACING DURING RESYNCHRONIZATION THERAPY IN A CARDIAC MEDICAL DEVICE AND MEDICAL DEVICE SYSTEM
    8.
    发明申请
    CONFIRMING SENSED ATRIAL EVENTS FOR PACING DURING RESYNCHRONIZATION THERAPY IN A CARDIAC MEDICAL DEVICE AND MEDICAL DEVICE SYSTEM 审中-公开

    公开(公告)号：US20180289964A1

    公开(公告)日：2018-10-11

    申请号：US16005943

    申请日：2018-06-12

    Applicant: Medtronic, Inc.

    Inventor： Subham Ghosh ,  Juan Du ,  Saul E. Greenhut ,  Michael T. Hemming

    IPC: A61N1/368 ,  A61B5/00 ,  A61B5/0452 ,  A61B5/042

    Abstract: A medical device and medical device system for controlling delivery of therapeutic stimulation pulses that includes a sensing device to sense a cardiac signal and emit a trigger signal in response to the sensed cardiac signal, a therapy delivery device to receive the trigger signal and deliver therapy to the patient in response to the emitted trigger signal, and a processor positioned within the sensing device, the processor configured to determine whether the sensed cardiac signal exceeds a possible P-wave threshold, compare a portion of the sensed cardiac signal to a P-wave template having a sensing window having a length less than a width of the P-wave, confirm an occurrence of a P-wave signal in response to the comparing, emit the trigger signal in response to the occurrence of a P-wave signal being confirmed, and inhibit delivery of the emitting signal in response to the occurrence of a P-wave signal not being confirmed.

    Filtering noise from a signal subjected to blanking
    9.
    发明授权
    Filtering noise from a signal subjected to blanking 有权
    过滤来自消隐信号的噪声

    公开(公告)号：US09375181B2

    公开(公告)日：2016-06-28

    申请号：US14522938

    申请日：2014-10-24

    Applicant: Medtronic, Inc.

    Inventor： Michael T. Hemming ,  Saul E. Greenhut

    IPC: A61B5/04 ,  A61B5/00 ,  A61B5/0402

    CPC classification number: A61B5/7203 ,  A61B5/04012 ,  A61B5/0402 ,  A61B5/0452 ,  A61B5/0538 ,  A61B5/1107 ,  A61B5/686 ,  A61N1/365 ,  A61N1/3718

    Abstract: The disclosure describes techniques and systems for filtering noise from a physiological signal. In one example, one or more processors are configured to receive a signal indicative of physiological activity of a patient, wherein the signal comprises noise at one or more frequencies, and filter the noise from the signal according to a noise rejection model, wherein the noise rejection model predicts the noise at the one or more frequencies. The one or more processors may also be configured to, responsive to initiation of a blanking period for the signal, advance the noise rejection model in time during the blanking period, and, responsive to termination of the blanking period, filter, based on the noise rejection model advanced in time, the noise at the one or more frequencies from the signal.

    Abstract translation: 本公开描述了用于从生理信号滤波噪声的技术和系统。 在一个示例中，一个或多个处理器被配置为接收指示患者的生理活动的信号，其中所述信号包括一个或多个频率的噪声，并且根据噪声抑制模型对来自信号的噪声进行滤波，其中噪声 拒绝模型预测在一个或多个频率的噪声。 一个或多个处理器还可以被配置为响应于信号的消隐周期的启动，在消隐周期期间及时推进噪声抑制模型，并且响应于消隐周期的终止，基于噪声进行滤波 拒绝模式及时提前，噪声在一个或多个频率的信号。

    State-based atrial event detection
    10.
    发明授权
    State-based atrial event detection 有权

    公开(公告)号：US12161475B2

    公开(公告)日：2024-12-10

    申请号：US16910832

    申请日：2020-06-24

    Applicant: Medtronic, Inc.

    Inventor： Michael T. Hemming ,  Saul E. Greenhut

    IPC: A61B5/0205 ,  A61B5/00 ,  A61B5/024 ,  A61B5/316 ,  A61B5/318 ,  A61B5/352 ,  A61B5/361 ,  A61B5/363 ,  A61N1/365 ,  A61N1/372 ,  A61N1/375 ,  A61N1/39 ,  A61B5/02 ,  A61N1/362

    Abstract: An implantable medical device includes a memory storing criteria for transitioning between states of a cardiac cycle model, the states including a P-wave state. The device also includes sensing circuitry that senses a cardiac signal that varies as a function of a cardiac cycle of a patient, and also includes processing circuitry coupled to the sensing circuitry. The processing circuitry is configured to detect an R-wave in the sensed cardiac signal, to determine an elapsed time since the detection of the R-wave, to determine one or more morphological values of a post-R-wave segment of the cardiac signal to compare the elapsed time and the one or more morphological values to the stored criteria for transitioning between the plurality of states of the cardiac cycle model, and to detect a P-wave in the sensed cardiac signal in response to a transition to the P-wave state of the cardiac cycle model.

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