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

Model Number	SONATA
Medical Device Problem Codes	Circuit Failure (1089); Impedance Problem (2950)
Health Effect - Clinical Code	No Clinical Signs, Symptoms or Conditions (4582)
Date of Event	02/23/2026
Type of Reportable Event	Malfunction
Additional Manufacturer Narrative
The device has not been explanted.If it should be explanted, it 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 users hearing performance has declined; 3 days ago, the device started going on and off, and after a day the user stopped hearing at all.
Event or Problem Description
The users hearing performance has declined; 3 days ago the device started going on and off, and after a day the user stopped hearing at all.
Additional Manufacturer Narrative
Additional information: according to the information received from the field a technical implant failure seems likely.Further in situ measurements since 2023 show several channels with short circuit and hi status likely due to a damage to the active electrode.However, to determine an exact root cause device investigation would be necessary.No information on possible further steps has been received.

• 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: 24480633
• Report Number: 9710014-2026-00212
• Device Sequence Number: 21243608
• Product Code: MCM
• UDI-Device Identifier: 09008737049119
• UDI-Public: (01)09008737049119
• Combination Product (Y/N): N
• Initial Reporter Country: AU
• PMA/510(K) Number: P000025
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Device Implanted Year: 2019
• 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): 03/12/2026

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: 06/27/2022
• Device Model Number: SONATA
• Was Device Available for Evaluation?: No
• Was the Report Sent to FDA?: No
• Type of Report(Section G): Thirty-Day
• Initial Date Received by Manufacturer: 02/26/2026
• Supplement Date Received by Manufacturer: 02/26/2026
• Initial Report FDA Received Date: 03/02/2026
• Supplement Report FDA Received Date: 03/12/2026
• Date Device Manufactured: 06/27/2019
• 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
• Patient Age: 10 YR
• Patient Sex: Female