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    Atrial arrhythmia episode detection in a cardiac medical device
    76.
    发明授权
    Atrial arrhythmia episode detection in a cardiac medical device 有权

    公开(公告)号：US11576607B2

    公开(公告)日：2023-02-14

    申请号：US16805057

    申请日：2020-02-28

    Applicant: Medtronic, Inc.

    Inventor： Elise J. Higgins ,  Mark L. Brown ,  Jian Cao

    IPC: A61B5/363 ,  A61B5/00 ,  A61B5/024 ,  A61B5/287 ,  A61B5/316 ,  A61B5/352 ,  A61B5/361 ,  A61N1/39 ,  A61B5/366

    Abstract: A medical device is configured to detect an atrial tachyarrhythmia episode. The device senses a cardiac signal, identifies R-waves in the cardiac signal attendant ventricular depolarizations and determines classification factors from the R-waves identified over a predetermined time period. The device classifies the predetermined time period as one of unclassified, atrial tachyarrhythmia and non-atrial tachyarrhythmia by comparing the determined classification factors to classification criteria. A classification criterion is adjusted from a first classification criterion to a second classification criterion after at least one time period being classified as atrial tachyarrhythmia. An atrial tachyarrhythmia episode is detected by the device in response to at least one subsequent time period being classified as atrial tachyarrhythmia based on the adjusted classification criterion.

    DRY ELECTRODES IN A WEARABLE GARMENT
    79.
    发明申请
    DRY ELECTRODES IN A WEARABLE GARMENT 有权

    公开(公告)号：US20220225937A1

    公开(公告)日：2022-07-21

    申请号：US17152328

    申请日：2021-01-19

    Applicant: Medtronic, Inc.

    Inventor： Jian Cao ,  Arthur K. Lai ,  Laura A. Chicos ,  Paul J. DeGroot

    IPC: A61B5/00 ,  A61B5/282 ,  A61B5/308 ,  A61B5/08

    Abstract: A wearable garment and an arrangement of electrodes configured to measure bioelectrical signals from a patient. The dry electrodes are free from adhesives to hold the electrodes in place on the patient's skin. The arrangement of the electrodes may be configured to limit noise and facilitate accurate signal sensing from the patient even with some amount of relative movement between the electrodes and the patient's skin. The wearable garment may be controllable to change the amount of compression based on the sensed signals from the electrodes, and from other sensors. The garment may maintain a comfortable level of compression until processing circuitry detects a signal of interest, such as a cardiac arrhythmia, irregular respiration, or some other signal. The processing circuitry may cause the wearable garment to increase compression to improve the contact between the electrodes and the patient's skin and improve reception of the measured signals.

    Atrial arrhythmia episode detection in a cardiac medical device
    80.
    发明授权
    Atrial arrhythmia episode detection in a cardiac medical device 有权

    公开(公告)号：US10219718B2

    公开(公告)日：2019-03-05

    申请号：US14520938

    申请日：2014-10-22

    Applicant: Medtronic, Inc.

    Inventor： Jian Cao ,  Elise Higgins

    IPC: A61B5/046 ,  A61B5/04 ,  A61N1/39

    Abstract: A method and medical device for determining a cardiac episode that includes sensing a cardiac signal, identifying the signal sensed during a predetermined time interval as one of a cardiac event, a non-cardiac event, and an unclassified event, determining a number of identified cardiac events, determining a number of identified unclassified events, and determining whether the cardiac episode is occurring in response to the number of identified cardiac events being greater than a cardiac event count threshold and the number of identified unclassified events being less than an unclassified event count threshold.

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