FDA Adverse Event Malfunction Summary report: N

LIFEVEST WCD 4000 SYSTEM

MDR report key: 2953948 · Received January 15, 2013

Report

Report Number
3008642652-2013-00106
Event Type
Malfunction
Date Received
January 15, 2013
Date of Event
December 25, 2012
Report Date
January 9, 2013
Manufacturer
ZOLL LIFECOR CORPORATION
Product Code
MVK
PMA / PMN Number
P010030
Product Problem
Yes
Report Source
Manufacturer report
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 (HIGH PITCHED NOISE/ WON'T POWER ON) HAS BEEN CONFIRMED. AS RECEIVED, THE MONITOR WOULD NOT POWER ON. DURING SERVICING, THERE WAS A 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. (B)(4). 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 FATHER CONTACTED ZOLL CUSTOMER SUPPORT TO REPORT THAT THE PATIENT'S MONITOR GAVE A HIGH PITCHED SOUND AND WOULD NOT POWER ON. THE PATIENT WAS ISSUED A REPLACEMENT MONITOR.

Devices

Seq Brand Generic Product Code Manufacturer Model Lot UDI-DI
21994 LIFEVEST WCD 4000 SYSTEM WEARABLE CARDIOVERTER DEFIBRILLATOR MVK ZOLL LIFECOR CORPORATION WCD 4000 NA

Patients

Seq Age Sex Outcome Treatment
1 43 YR