BEUDAMED
    FDA Adverse Event Malfunction Summary report: N

    HEARTWARE VENTRICULAR ASSIST SYSTEM - CONTROLLER AC ADAPTER

    MDR report key: 7651474 · Received June 29, 2018

    Report

    Report Number
    3007042319-2018-02790
    Event Type
    Malfunction
    Date Received
    June 29, 2018
    Date of Event
    June 6, 2018
    Report Date
    September 25, 2018
    Manufacturer
    HEARTWARE, INC.
    Product Code
    DSQ
    UDI-DI
    00888707000307
    PMA / PMN Number
    P100047
    Product Problem
    Yes
    Report Source
    Manufacturer report
    Reporter Location
    VA, US
    Reporter Occupation
    HEALTH PROFESSIONAL

    Narratives

    Additional Manufacturer Narrative · 0

    PRODUCT EVENT SUMMARY: THE CONTROLLER AC ADAPTER AND TWO BATTERIES (B)(4) WERE RETURNED FOR EVALUATION. VARIOUS ANALYSES WERE CONDUCTED AND REVIEWED IN ORDER TO EVALUATE THE PERFORMANCE OF THE DEVICES IN RELATION TO THE REPORTED EVENT. THE REPORTED EVENT WAS CONFIRMED DURING TESTING. FAILURE ANALYSIS OF THE CONTROLLER AC ADAPTER REVEALED A TEAR ON THE OUTER SHEATH OF THE OUTPUT CABLE, LEAVING THE ELECTRICAL WIRES INSIDE EXPOSED. FAILURE ANALYSIS OF (B)(4) REVEALED THAT THE DEVICE PASSED VISUAL INSPECTION AND FUNCTIONAL TESTING. A REVIEW OF THE (B)(4) INTERNAL LOG REVEALED THAT A CELL PAIR, AT ONE POINT IN TIME, PASSED THE VOLTAGE THRESHOLD. HOWEVER, THE BATTERY WAS RECEIVED WITH NO FLAGS ENABLED. FAILURE ANALYSIS OF (B)(4) REVEALED THAT THE DEVICE PASSED VISUAL INSPECTION. FUNCTIONAL TESTING REVEALED THAT THE BATTERY WAS UNABLE TO CHARGE DUE TO A FLAG. FURTHER ANALYSIS REVEALED THAT THE FLAG WAS DUE TO AN OVER-VOLTAGE FAULT BY THE ANALOG FRONT END THAT WAS TRIGGERED WHEN A CELL PAIR INCREASED ABOVE THE VOLTAGE THRESHOLD. WHEN AN OVER-VOLTAGE FAULT OCCURS, THE BATTERY IS UNABLE TO CHARGE BUT CAN STILL PROVIDE POWER. THE BATTERY CHARGER STATUS INDICATOR WILL FLASH RED AFTER EIGHT (8) HOURS DUE TO A CHARGE TIME-OUT. AS A RESULT, THE REPORTED EVENT WAS CONFIRMED. THE MOST LIKELY ROOT CAUSE OF THE REPORTED BATTERIES NOT CHARGING CAN BE ATTRIBUTED TO AN OVER-VOLTAGE FAULT DETECTED BY THE ANALOG FRONT END INTEGRATED CIRCUIT. BASED ON AN INTERNAL INVESTIGATION, BATTERIES WITH A CELL OVER VOLTAGE CONDITION CAN BE ATTRIBUTED TO BATTERY CHARGERS ASSEMBLED WITH INCORRECT INDUCTORS. BASED ON THE AVAILABLE INFORMATION, THE MOST LIKELY ROOT CAUSE OF THE REPORTED TEAR ON THE CONTROLLER AC ADAPTER CAN BE ATTRIBUTED TO WEAR AND/OR DUE TO THE HANDLING OF THE UNIT. OTHER DEVICES INVOLVED IN THIS EVENT: D1: HEARTWARE VENTRICULAR ASSIST SYSTEM ¿ (B)(4). MEDTRONIC, INC. (MEDTRONIC) IS SUBMITTING THIS REPORT TO COMPLY WITH 21 C.F.R. PART 803, THE MEDICAL DEVICE REPORTING REGULATION. THIS REPORT IS BASED UPON INFORMATION OBTAINED BY MEDTRONIC, WHICH THE COMPANY MAY NOT HAVE BEEN ABLE TO FULLY INVESTIGATE OR VERIFY PRIOR TO THE DATE THE REPORT WAS REQUIRED BY THE FDA. MEDTRONIC HAS MADE REASONABLE EFFORTS TO OBTAIN MORE COMPLETE INFORMATION IN THE TIME ALLOTTED AND HAS PROVIDED AS MUCH INFORMATION AS IS AVAILABLE TO THE COMPANY AS OF THE SUBMISSION DATE THIS REPORT. THIS REPORT DOES NOT CONSTITUTE AN ADMISSION OR A CONCLUSION BY FDA, MEDTRONIC, OR ITS EMPLOYEES THAT THE DEVICE, MEDTRONIC OR ITS EMPLOYEES CAUSED OR CONTRIBUTED TO THE EVENT DESCRIBED IN THE REPORT. IN PARTICULAR, THIS REPORT DOES NOT CONSTITUTE AN ADMISSION BY ANYONE THAT THE PRODUCT DESCRIBED IN THIS REPORT HAS ANY "DEFECTS" OR HAS "MALFUNCTIONED". THESE WORDS ARE INCLUDED IN THE FDA 3500A FORM AND ARE FIXED ITEMS FOR SELECTION CREATED BY THE FDA, TO CATEGORIZE THE TYPE OF EVENT SOLELY FOR THE PURPOSE OF REPORTING PURSUANT TO PART 803. MEDTRONIC OBJECTS TO THE USE OF THESE WORDS AND OTHERS LIKE IT BECAUSE OF THE LACK OF DEFINITION AND THE CONNOTATIONS IMPLIED BY THESE TERMS. THIS STATEMENT SHOULD BE INCLUDED WITH ANY INFORMATION OR REPORT DISCLOSED TO THE PUBLIC UNDER THE FREEDOM OF INFORMATION ACT. ANY REQUIRED FIELDS THAT ARE UNPOPULATED ARE BLANK BECAUSE THE INFORMATION IS CURRENTLY UNKNOWN OR UNAVAILABLE. A GOOD FAITH EFFORT WILL BE MADE TO OBTAIN THE APPLICABLE INFORMATION RELEVANT TO THE REPORT. IF INFORMATION IS PROVIDED IN THE FUTURE, A SUPPLEMENTAL REPORT WILL BE ISSUED.

    Description of Event or Problem · 0

    THE BATTERIES WERE RETURNED TO THE MANUFACTURER BECAUSE THEY WERE NOT CHARGING AND THE INDICATOR ON THE BATTERY CHARGER DISPLAYED A FLASHING RED LIGHT. THE DEVICES SUBSEQUENTLY TESTED OUT OF SPECIFICATION DURING MANUFACTURER'S ANALYSIS. NO PATIENT COMPLICATIONS HAVE BEEN REPORTED AS A RESULT OF THIS EVENT.

    Additional Manufacturer Narrative · 1

    THIS DEVICE IS USED FOR TREATMENT NOT DIAGNOSIS. THE VENTRICULAR ASSIST SYSTEM IS INDICATED FOR USE AS A BRIDGE TO CARDIAC TRANSPLANTATION AND DESTINATION THERAPY IN PATIENTS WHO ARE AT RISK OF DEATH FROM REFRACTORY END-STAGE LEFT VENTRICULAR HEART FAILURE. THE SYSTEM IS DESIGNED FOR IN-HOSPITAL AND OUT-OF-HOSPITAL SETTINGS. IF INFORMATION IS PROVIDED IN THE FUTURE, A SUPPLEMENTAL REPORT WILL BE ISSUED.

    Description of Event or Problem · 1

    IT WAS REPORTED THAT THE CONTROLLER AC ADAPTER HAD A DAMAGED CABLE WITH WIRES EXPOSED. THE CONTROLLER AC ADAPTER WAS REPLACED. NO PATIENT COMPLICATIONS HAVE BEEN REPORTED AS A RESULT OF THIS EVENT.

    Devices

    Seq Brand Generic Product Code Manufacturer Model Lot UDI-DI
    493822 HEARTWARE VENTRICULAR ASSIST SYSTEM - CONTROLLER AC ADAPTER VENTRICULAR (ASSISST) BYPASS DSQ HEARTWARE, INC. 1430US 00888707000307

    Patients

    Seq Age Sex Outcome Treatment
    1 61 YR 1103 VAD| 1103 VAD