MAUDE Adverse Event Report: MED-EL ELEKTROMEDIZINISCHE GERAETE GMBH MED-EL MAESTRO COCHLEAR IMPLANT SYSTEM

Model Number SONATA

Device Problem Output Problem (3005)

Patient Problem Failure of Implant (1924)

Event Type  Injury  

Manufacturer Narrative

The device has not been explanted.If it should be explanted, it is to be returned to the manufacturer for evaluation.When available, a device failure analysis will be submitted as a follow up report.

Event Description

In situ testing showed affected channels.No decline in hearing performance with the device has been noticed.

Event Description

In situ testing showed affected channels.No decline in hearing performance with the device has been noticed.Re-implantation has been recommended.However, no date has been scheduled yet.

Manufacturer Narrative

Additional information: according to the currently available information, damage to the active electrode, as it might be caused by an external mechanical impact appears likely.However to confirm an exact root cause of failure a device investigation of the explanted device is necessary.No date for revision surgery has been set yet.

Event Description

In situ testing showed affected channels.No decline in hearing performance with the device has been noticed.The user was re-implanted.Despite requested, the concerned device could not be retrieved for investigation yet.

Manufacturer Narrative

Additional information: according to the currently available information, damage to the active electrode, as it might be caused by an external mechanical impact appears likely.However to confirm an exact root cause of failure a device investigation of the explanted device is necessary.The concerned device was explanted but has not been received for investigation yet.

Event Description

In situ testing showed affected channels.No decline in hearing performance with the device has been noticed.The user was re-implanted.

Manufacturer Narrative

Conclusion: overload fractures in the active electrode which are consistent with an external mechanical impact were determined to be the root cause of device failure.The active electrode also showed some additional damage to the electrode wires, as being caused by minute device mobility.An accident or impact might have weakened the fixation of the implant, consequently leading to electrode mobility.The problems given in the recipient report appear to match the damage found.This is a final report.

• Brand Name: MED-EL MAESTRO COCHLEAR IMPLANT SYSTEM
• Type of Device: COCHLEAR IMPLANT
• Manufacturer (Section D): MED-EL ELEKTROMEDIZINISCHE GERAETE GMBH; innsbruck ; AU
• MDR Report Key: 10598074
• MDR Text Key: 208930662
• Report Number: 9710014-2020-00523
• Device Sequence Number: 1
• Product Code: MCM
• UDI-Device Identifier: 09008737083618
• UDI-Public: (01)09008737083618
• Combination Product (y/n): N
• PMA/PMN Number: P000025
• Number of Events Reported: 1
• Summary Report (Y/N): N
• Report Source: Manufacturer
• Source Type: company representative
• Type of Report: Initial,Followup,Followup,Followup
• Report Date: 10/12/2021

1 Device was Involved in the Event

1 Patient was Involved in the Event

• Date FDA Received: 09/29/2020
• Is this an Adverse Event Report?: No
• Is this a Product Problem Report?: Yes
• Device Operator: Lay User/Patient
• Device Expiration Date: 05/17/2017
• Device Model Number: SONATA
• Was Device Available for Evaluation?: Device Returned to Manufacturer
• Date Returned to Manufacturer: 09/02/2021
• Was the Report Sent to FDA?: No
• Date Manufacturer Received: 09/16/2020
• Is This a Reprocessed and Reused Single-Use Device?: No
• Patient Sequence Number: 1
• Patient Outcome(s): Required Intervention
• Patient Age: 5 YR