MAUDE Adverse Event Report: ZOLL MANUFACTURING CORPORATION LIFEVEST WCD 4000 SYSTEM; WEARABLE CARDIOVERTER DEFIBRILLATOR

Model Number WCD 4000

Device Problems No Display/Image (1183); Failure to Power Up (1476)

Patient Problem No Known Impact Or Consequence To Patient (2692)

Event Date 03/30/2020

Event Type  malfunction  

Manufacturer Narrative

Device evaluation of monitor sn (b)(4) has been completed.The reported problem (monitor screen blank) has been confirmed.As received, the monitor would not power on normally and was resetting.Upon evaluation, the monitor exhibited a flash memory failure at bga components u102 and u105 on the c/a board, causing the reported failures.Root cause investigation into devices exhibiting similar failures modes indicates likely intermittent bga connections.The intermittent connections are likely induced by mechanical stress.The exact source of the mechanical stress has not been positively identified but the intermittent connection may have been accelerated through rough handling.No adverse event resulted from the defective equipment.

Event Description

A us distributor reported that a patient's monitor had a blank screen and was unable to power on normally.

• Brand Name: LIFEVEST WCD 4000 SYSTEM
• Type of Device: WEARABLE CARDIOVERTER DEFIBRILLATOR
• Manufacturer (Section D): ZOLL MANUFACTURING CORPORATION; 121 gamma drive; pittsburgh, pa
• Manufacturer (Section G): ZOLL MANUFACTURING CORPORATION; 121 gamma drive; pittsburgh, pa
• Manufacturer Contact: eliza schally ; 121 gamma drive; pittsburgh, pa ; 9683333
• MDR Report Key: 10151218
• MDR Text Key: 195375325
• Report Number: 3008642652-2020-04386
• Device Sequence Number: 1
• Product Code: MVK
• UDI-Device Identifier: 00855778005005
• UDI-Public: 00855778005005
• Combination Product (y/n): N
• Reporter Country Code: US
• PMA/PMN Number: P010030
• Number of Events Reported: 1
• Summary Report (Y/N): N
• Report Source: Manufacturer
• Source Type: distributor
• Reporter Occupation: Other
• Type of Report: Initial
• Report Date: 05/14/2020

1 Device was Involved in the Event

1 Patient was Involved in the Event

• Date FDA Received: 06/12/2020
• Is this an Adverse Event Report?: No
• Is this a Product Problem Report?: Yes
• Device Operator: Lay User/Patient
• Device Model Number: WCD 4000
• Device Catalogue Number: 10A0988
• Was Device Available for Evaluation?: Device Returned to Manufacturer
• Date Returned to Manufacturer: 04/16/2020
• Date Manufacturer Received: 05/13/2020
• Was Device Evaluated by Manufacturer?: Device Not Returned to Manufacturer
• Date Device Manufactured: 03/01/2012
• Is the Device Single Use?: No
• Is This a Reprocessed and Reused Single-Use Device?: No
• Type of Device Usage: Reuse
• Patient Sequence Number: 1