MAUDE Adverse Event Report: MED-EL ELEKTROMEDIZINISCHE GERAETE GMBH SONATA; COCHLEAR IMPLANT

Model Number	SONATA
Medical Device Problem Code	Impedance Problem (2950)
Health Effect - Clinical Code	No Clinical Signs, Symptoms or Conditions (4582)
Date of Event	04/29/2025
Type of Reportable Event	Malfunction
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.
Event or Problem Description
The parents reported a decline in hearing performance with the right-side device in (b)(6) 2025.The recipient has been re-implanted.
Additional Manufacturer Narrative
Additional information: according to the currently available information, damage to the reference electrode due to an external mechanical impact appears to be 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 or Problem Description
The parents reported a decline in hearing performance with the right-side device on (b)(6) 2025.The recipient has been re-implanted.
Additional Manufacturer Narrative
Conclusion: device investigation revealed a technical failure of the reference electrode which explains the reported issues.The investigation results appear to match the problems mentioned in the recipient report.This is a final report.
Event or Problem Description
The parents reported a decline in hearing performance with the right-side device in (b)(6) 2025.The recipient has been re-implanted.

• Brand Name: SONATA
• 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: 22024108
• Report Number: 9710014-2025-00438
• Device Sequence Number: 7220446
• 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: 2025
• 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,Followup
• Report Date (Section B): 02/19/2026

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: 03/11/2023
• 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: 05/09/2025
• Supplement Date Received by Manufacturer: 05/09/2025; 05/09/2025
• Initial Report FDA Received Date: 05/15/2025
• Supplement Report FDA Received Date: 06/11/2025; 02/19/2026
• Was Device Evaluated by Manufacturer? (Y/N): Yes
• Date Device Manufactured: 03/11/2021
• 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: 5 YR
• Patient Sex: Male