BEUDAMED
    FDA Adverse Event Malfunction Summary report: N

    LIFEVEST WCD 4000 SYSTEM

    MDR report key: 3221507 · Received July 2, 2013

    Report

    Report Number
    3008642652-2013-01748
    Event Type
    Malfunction
    Date Received
    July 2, 2013
    Date of Event
    May 23, 2013
    Report Date
    June 27, 2013
    Manufacturer
    ZOLL LIFECOR CORPORATION
    Product Code
    MVK
    PMA / PMN Number
    P010030
    Product Problem
    Yes
    Report Source
    Manufacturer report
    Reporter Location
    TX, US
    Reporter Occupation
    NOT APPLICABLE

    Narratives

    Additional Manufacturer Narrative · 1

    DEVICE EVALUATION SUMMARY: DEVICE EVALUATION OF MONITOR SN (B)(4) HAS BEEN COMPLETED. THE REPORTED PROBLEM (SCREECHING SOUND) HAS BEEN CONFIRMED. AS RECEIVED, THE MONITOR WOULD NOT POWER ON. DURING SERVICING, THERE WAS SEGMENTATION FAULT WHILE PERFORMING THE FLASH MEMORY TEST. THE CAUSE OF THE INABILITY TO POWER ON IS THE FLASH MEMORY FAILURE. THE CAUSE OF THE FLASH MEMORY FAILURE HAS BEEN ISOLATED TO FLASH COMPONENTS (U102 AND U105) ON THE COMPUTER ANALOG (CA) BOARD SN (B)(4). THE FLASH MEMORY COMPONENTS HAD INTERMITTENT BGA CONNECTIONS. THE INTERMITTENT CONNECTION IS LIKELY DUE TO A FRACTURED SOLDER CONNECTION INDUCED BY MECHANICAL STRESS. THE EXACT SOURCE OF THE MECHANICAL STRESS HAS NOT BEEN POSITIVELY IDENTIFIED BUT THE FRACTURED CONNECTION MAY HAVE BEEN ACCELERATED THROUGH ROUGH HANDLING. ROOT CAUSE ANALYSIS OF SIMILAR EVENTS FOUND THAT EXCESSIVE STRAIN ON THE PRINTED CIRCUIT ASSEMBLY (PCA) FROM SEVERE IMPACT CAN CAUSE FRACTURED SOLDER CONNECTIONS. A MECHANICAL DESIGN CHANGE ((B)(4)) TO REDUCE THE PCA STRAIN WAS APPROVED BY FDA ON (B)(4) 2012. IMPLEMENTATION BEGAN ON (B)(4) 2013. RESULTS WILL BE MONITORED. NO ADVERSE EVENT RESULTED FROM THE DEFECTIVE MEMORY. THE PATIENT RECEIVED A REPLACEMENT MONITOR.

    Description of Event or Problem · 1

    A (B)(6) MALE PATIENT'S WIFE CONTACTED ZOLL CUSTOMER SUPPORT TO REPORT THAT THE PATIENT'S MONITOR WAS MAKING A SCREECHING SOUND AND THEN THE MONITOR WENT BLANK. THE PATIENT WAS ISSUED A REPLACEMENT MONITOR.

    Devices

    Seq Brand Generic Product Code Manufacturer Model Lot UDI-DI
    300755 LIFEVEST WCD 4000 SYSTEM WEARABLE CARDIOVERTER DEFIBRILLATOR MVK ZOLL LIFECOR CORPORATION WCD 4000 NA

    Patients

    Seq Age Sex Outcome Treatment
    1 63 YR