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    Atrial fibrillation detection
    3.
    发明授权
    Atrial fibrillation detection 有权

    公开(公告)号：US12232879B2

    公开(公告)日：2025-02-25

    申请号：US17390780

    申请日：2021-07-30

    Applicant: West Affum Holdings DAC

    Inventor： Joseph L. Sullivan

    IPC: A61B5/361 ,  A61B5/00 ,  A61B5/33

    Abstract: Embodiments of a wearable monitoring device system can include one or more dry ECG electrodes and a processor that can be configured with one or more algorithms for detecting atrial fibrillation (AF) from sensed ECG signals sensed by the one or more dry ECG electrodes, and optionally other signals. In some embodiments the algorithms include one or more AF detection algorithms and optionally a noise detection algorithm. In some embodiments the wearable monitoring device or a remote system that receives data from the wearable medical device may calculate and/or characterize AF burden from ECG signals sensed by the one or more dry ECG electrodes.

    Identifying reliable vectors
    5.
    发明授权
    Identifying reliable vectors 有权

    公开(公告)号：US12186107B2

    公开(公告)日：2025-01-07

    申请号：US18383020

    申请日：2023-10-23

    Applicant: WEST AFFUM HOLDINGS DAC

    Inventor： Jaeho Kim ,  Joseph L. Sullivan

    IPC: A61N1/39 ,  A61B5/00 ,  A61B5/0245 ,  A61B5/30 ,  A61B5/347 ,  A61B5/364

    Abstract: In one embodiment, a method to determine reliable electrocardiogram (ECG) signal is described. The method includes receiving at least one ECG signal for a period of time from a patient. The method also includes analyzing the at least one ECG signal to determine a first heart rate using a first method and analyzing the at least one ECG signal to determine a second heart rate using a second method different from the first method. The method includes comparing the first and second heart rates to each other and classifying the at least one ECG signal as reliable when a reliability threshold is satisfied.

    Wearable cardioverter defibrillator (WCD) system with active ECG cable shielding
    6.
    发明授权
    Wearable cardioverter defibrillator (WCD) system with active ECG cable shielding 有权

    公开(公告)号：US12128244B2

    公开(公告)日：2024-10-29

    申请号：US17540217

    申请日：2021-12-01

    Applicant: WEST AFFUM HOLDINGS DAC

    Inventor： Zhong Qun Lu ,  Douglas K. Medema ,  Kenneth F. Cowan

    IPC: A61N1/04 ,  A61N1/37 ,  A61N1/39

    CPC classification number: A61N1/3904 ,  A61N1/046 ,  A61N1/0484 ,  A61N1/3704 ,  A61N1/3968

    Abstract: Embodiments of a wearable cardioverter defibrillator (WCD) system are configured to monitor a patient's ECG for shockable arrhythmias and deliver a shock to the patient in response to such a detection. To monitor the patient's ECG with reduced signal noise to improve the system's performance, the system includes a cable assembly having: a signal line; an inner shield and an outer shield; an ECG electrode electrically connected to the signal line of the cable assembly; and an amplifier having first and second input nodes respectively connected to the signal line and the outer shield of the cable assembly. The amplifier's output node is electrically connected to the inner shield of the cable assembly to reduce the reactive load seen by the patient's heart in driving the ECG sensing circuitry, which reduces the noise on the ECG signal outputted by the amplifier.

    WCD user interface response to a change in device orientation
    8.
    发明授权
    WCD user interface response to a change in device orientation 有权

    公开(公告)号：US12115378B2

    公开(公告)日：2024-10-15

    申请号：US17717322

    申请日：2022-04-11

    Applicant: WEST AFFUM HOLDINGS DAC

    Inventor： Zoie R. Engman ,  Aaron J. Piazza ,  Erick M. Roane

    IPC: A61N1/00 ,  A61N1/04 ,  A61N1/39

    CPC classification number: A61N1/3904 ,  A61N1/046 ,  A61N1/3912 ,  A61N1/3925 ,  A61N1/3968 ,  A61N1/3975

    Abstract: In one embodiment, a wearable cardioverter defibrillator (WCD) is described. The WCD includes a support structure worn by a patient. A processor is coupled to the support structure. The WCD also includes a discharge circuit coupled to an energy storage module, the discharge circuit configured to discharge the stored electrical charge through a body of the patient. The wearable cardioverter defibrillator also includes a user interface housing at least one sensor and responsive to changes in device orientation. The processor is configured to detect a motion at the user interface and determine when the motion is patient-activated. When the motion is patient-activated, the processor determines a direction of rotation. The processor determines an orientation of a display at the user interface based on the direction of rotation and orients the display at the user interface to appear upright to the patient.

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