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

Model Number	SONATA
Medical Device Problem Code	Lack of Effect (4065)
Health Effect - Clinical Code	Extraskeletal ossification (1428)
Date of Event	02/26/2026
Type of Reportable Event	Malfunction
Additional Manufacturer Narrative
Conclusion: according to the information received from the field the recipient never had benefit with the device likely due to the reported ossification, which was present since implantation surgery.In addition during device investigation damage to the active electrode caused by device minute mobility was found.Other mechanical damages are attributable to the removal surgery.This is a combined initial and final report.
Event or Problem Description
During implantation surgery, insertion resistance was encountered likely due to cochlear ossification.The user didn't get benefits from the ci post-operatively, and abandoned wearing the external device.No post imaging was done.Cochlear nerve was assessed to be functioning.

• 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: 25226317
• Report Number: 9710014-2026-00460
• Device Sequence Number: 9973304
• Product Code: MCM
• UDI-Device Identifier: 09008737083618
• UDI-Public: (01)09008737083618
• 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: 2020
• Device Explanted Year: 2026
• Serviced by Third Party (Y/N): N
• Reporter Type: Manufacturer
• Report Source: Health Professional
• Initial Reporter Occupation: Non-Healthcare Professional
• Type of Report: Initial
• Report Date (Section B): 05/20/2026

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 Model Number: SONATA
• Was Device Available for Evaluation?: Device Returned to Manufacturer
• Date Returned to Manufacturer: 03/24/2026
• Was the Report Sent to FDA?: No
• Type of Report(Section G): Thirty-Day
• Initial Date Received by Manufacturer: 05/13/2026
• Initial Report FDA Received Date: 05/20/2026
• Was Device Evaluated by Manufacturer? (Y/N): Yes
• 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: 29 YR
• Patient Sex: Female