BEUDAMED
    FDA Adverse Event Malfunction Summary report: N

    LIFEVEST WCD 4000 SYSTEM

    MDR report key: 23345966 · Received October 21, 2025

    Report

    Report Number
    3008642652-2025-10126
    Event Type
    Malfunction
    Date Received
    October 21, 2025
    Date of Event
    October 17, 2025
    Report Date
    October 21, 2025
    Manufacturer
    ZOLL MANUFACTURING CORPORATION
    Product Code
    MVK
    UDI-DI
    00855778005135
    PMA / PMN Number
    P010030
    Product Problem
    Yes
    Report Source
    Manufacturer report
    Reporter Location
    PA, US
    Reporter Occupation
    OTHER

    Narratives

    Additional Manufacturer Narrative · 0

    DEVICE EVALUATION OF ELECTRODE BELT HAS BEEN COMPLETED. THE REPORTED PROBLEM (ECGS NON-FUNCTIONAL) HAS BEEN CONFIRMED. UPON INVESTIGATION THE ELECTRODE BELT UNABLE TO COMPLETE AN ECG FALL-OFF TEST. THE CAUSE FOR THE FAILURE WAS ISOLATED TO A BROKEN BROWN (-5V) WIRE NEAR THE JST CONNECTOR IN THE TRUNK CABLE. THE ROOT CAUSE FOR THE BROKEN WIRE COULD NOT BE POSITIVELY IDENTIFIED. THERE WAS NO ADVERSE EVENT THAT RESULTED FROM THE DAMAGED BELT.

    Description of Event or Problem · 0

    A US DISTRIBUTOR REPORTED THAT AN ELECTRODE BELT HAD NON-FUNCTIONAL ECGS.

    Devices

    Seq Brand Generic Product Code Manufacturer Model Lot UDI-DI
    2283644 LIFEVEST WCD 4000 SYSTEM WEARABLE CARDIOVERTER DEFIBRILLATOR MVK ZOLL MANUFACTURING CORPORATION LIFEVEST WCD 4000 SYSTEM 00855778005135

    Patients

    Seq Age Sex Outcome Treatment
    1 NA Unknown