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

Model Number	SONATA
Medical Device Problem Code	Migration (4003)
Health Effect - Clinical Code	Failure of Implant (1924)
Date of Event	04/27/2023
Type of Reportable Event	Malfunction
Event or Problem Description
The user did not have good benefit in early 2023.Reportedly, the first fitting happened in 2021 but the user could not get good benefit from the ci system at that time and the parents decided to get their daughter treated with language rehabilitation training.No further information about the outcome of the treatment has been received before early 2023.
Additional Manufacturer Narrative
The device has been explanted and should be returned to the manufacturer for evaluation.When available, a device failure analysis will be submitted as a follow up report.
Additional Manufacturer Narrative
Conclusion: device investigations did not reveal any device defect or problem.This finding was expected, because according to the recipient report, the device was explanted due to a migration of the active electrode out of cochlea.Mechanical damages found are attributable to the removal surgery.This is a final report.
Event or Problem Description
The user did not have good benefit in early 2023.Reportedly, the first fitting happened in 2021 but the user could not get good benefit from the ci system at that time and the parents decided to get their daughter treated with language rehabilitation training.The user has been re-implanted.

• Brand Name: MED-EL MAESTRO COCHLEAR IMPLANT SYSTEM
• Common Device Name: COCHLEAR IMPLANT
• Manufacturer (Section D): MED-EL ELEKTROMEDIZINISCHE GERAETE GMBH; innsbruck ; AU
• Manufacturer Contact: laura simonotti ; fuerstenweg 77a; innsbruck 6020 ; AU 6020 ; 57788
• MDR Report Key: 16928740
• Report Number: 9710014-2023-00405
• Device Sequence Number: 6930652
• Product Code: MCM
• UDI-Device Identifier: 09008737049157
• UDI-Public: (01)09008737049157
• Combination Product (Y/N): N
• Initial Reporter Country: CH
• PMA/510(K) Number: P000025
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Device Implanted Year: 2021
• Device Explanted Year: 2023
• Serviced by Third Party (Y/N): N
• Reporter Type: Manufacturer
• Report Source: Company Representative
• Initial Reporter Occupation: Non-Healthcare Professional
• Type of Report: Initial,Followup
• Report Date (Section B): 06/20/2023

1 Device was Involved in the Event

1 Patient was Involved in the Event

• Is this an Adverse Event Report?: No
• Is this a Product Problem Report?: Yes
• Operator of Device: Lay User/Patient
• Device Expiration Date: 07/21/2023
• Device Model Number: SONATA
• Was Device Available for Evaluation?: Device Returned to Manufacturer
• Was the Report Sent to FDA?: No
• Type of Report(Section G): Thirty-Day
• Initial Date Received by Manufacturer: 05/05/2023
• Supplement Date Received by Manufacturer: 05/05/2023
• Initial Report FDA Received Date: 05/15/2023
• Supplement Report FDA Received Date: 06/20/2023
• Was Device Evaluated by Manufacturer? (Y/N): Yes
• Date Device Manufactured: 07/21/2020
• Is the Device Labeled for Single Use? (Y/N): Yes
• Is This a Single-Use Device that was Reprocessed and Reused on a Patient? (Y/N): No
• Usage of Device: Initial
• Patient Sequence Number: 1
• Outcome Attributed to Adverse Event: Required Intervention
• Patient Age: 4 YR
• Patient Sex: Female