FDA Adverse Event Malfunction Summary report: N

LIFEVEST WCD 4000 SYSTEM

MDR report key: 3192368 · Received June 18, 2013

Report

Report Number
3008642652-2013-01585
Event Type
Malfunction
Date Received
June 18, 2013
Date of Event
May 20, 2013
Report Date
June 11, 2013
Manufacturer
ZOLL LIFECOR CORPORATION
Product Code
MVK
PMA / PMN Number
P010030
Product Problem
Yes
Report Source
Manufacturer report
Reporter Location
PA, US
Reporter Occupation
BIOMEDICAL ENGINEER

Narratives

Additional Manufacturer Narrative · 1

DEVICE EVAL SUMMARY: DEVICE EVAL OF BATTERY CHARGER/MODEM SN (B)(4) HAS BEEN COMPLETED. AS REC'D, THE BATTERY CHARGER WOULD NOT POWER ON. THE CAUSE OF THE BATTERY CHARGER NOT POWERING ON WAS A FLASH MEMORY FAILURE (COMPONENTS U102 AND U105) ON C/A BOARD (B)(4). THE FLASH MEMORY HAD AN INTERMITTENT BGA CONNECTION, WHICH WAS DISCARDED THROUGH THE USE OF A TARGET MEMORY TEST. THE INTERMITTENT 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 TO REDUCE THE PCA STRAIN ((B)(4)) WAS APPROVED BY FDA ON (B)(4) 2013. IMPLEMENTATION BEGAN ON (B)(4) 2013. NO ADVERSE EVENT RESULTED FROM THE DEFECTIVE BATTERY CHARGER/MODEM. THE LAST PT TO USE THIS BATTERY CHARGER/MODEM DID NOT REPORT ANY PROBLEMS.

Description of Event or Problem · 1

A REVIEW OF SERVICE DATA DETECTED A REPORTABLE PROBLEM. DURING SERVICING, BATTERY CHARGER/MODEM SN (B)(4) WAS UNABLE TO POWER ON. THE LAST PT TO USE THIS BATTERY CHARGER/MODEM DID NOT REPORT ANY DEFICIENCIES.

Devices

Seq Brand Generic Product Code Manufacturer Model Lot UDI-DI
276064 LIFEVEST WCD 4000 SYSTEM WEARABLE CARDIOVERTER DEFIBRILLATOR MVK ZOLL LIFECOR CORPORATION WCD 4000 NA

Patients

Seq Age Sex Outcome Treatment
1 NA