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	02/05/2026
Type of Reportable Event	Malfunction
Event or Problem Description
Hearing performance with the device is affected.It was first noticed on 30-jul-2025.The user was re-implanted.
Additional Manufacturer Narrative
Conclusion: based on the received information, a damage to the active electrode due to excessive mechanical stress seems very likely.However to determine an exact root cause device investigation would be necessary.The concerned device was explanted but has not been received for investigation yet.This is a combined initial and final report.
Event or Problem Description
Hearing performance with the device is affected.It was first noticed in (b)(6) 2025.The user was re-implanted.
Additional 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.In addition the investigation also revealed fatigue wire breakages in the active electrode consistent with repeated external mechanical impacts on the device.The problems described in the recipient report appear to match the damage found.This is a final report.

• 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: 24411123
• Report Number: 9710014-2026-00136
• Device Sequence Number: 14922566
• Product Code: MCM
• UDI-Device Identifier: 09008737049119
• UDI-Public: (01)09008737049119
• 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: 2017
• Device Explanted Year: 2026
• Serviced by Third Party (Y/N): Unknown
• Reporter Type: Manufacturer
• Report Source: Company Representative
• Initial Reporter Occupation: Non-Healthcare Professional
• Type of Report: Initial,Followup
• Report Date (Section B): 05/12/2026

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: 02/09/2020
• 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: 02/06/2026
• Supplement Date Received by Manufacturer: 02/06/2026
• Initial Report FDA Received Date: 02/23/2026
• Supplement Report FDA Received Date: 05/12/2026
• Was Device Evaluated by Manufacturer? (Y/N): Yes
• Date Device Manufactured: 02/09/2017
• 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: 13 YR
• Patient Sex: Male