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	Taste Disorder (4422)
Date of Event	07/25/2025
Type of Reportable Event	Malfunction
Additional Manufacturer Narrative
Conclusion: according to information received, the device explanted due to pain and unrelated clinical conditions.However, a reduced electrical impedance between coil and eap/rg (evoked action potentials/ remote ground) electrode was discovered during investigation.Furthermore, the recipient has pre-existing medical conditions.Both factors might have led to the reported pain and consequently led to device removal.Mechanical damages found during investigation are attributable to the removal surgery.This is a combined initial and final report.
Event or Problem Description
The recipient reported pain around the coil, which was not related to the magnet strength and began approximately two months ago.When the audio processor (ap) was removed, the pain persisted and radiated toward the eye region.Then the recipient began experiencing a metallic taste in the mouth.Due to the pain, the recipient often needed to remove the ap.The user 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: 25371133
• Report Number: 9710014-2026-00503
• Device Sequence Number: 13400963
• Product Code: MCM
• UDI-Device Identifier: 09008737049157
• UDI-Public: (01)09008737049157
• Combination Product (Y/N): N
• PMA/510(K) Number: P000025
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Device Implanted Year: 2018
• 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
• Report Date (Section B): 06/03/2026

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: 03/19/2026
• Was the Report Sent to FDA?: No
• Type of Report(Section G): Thirty-Day
• Initial Date Received by Manufacturer: 06/02/2026
• Initial Report FDA Received Date: 06/03/2026
• 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: 36 YR
• Patient Sex: Female