MAUDE Adverse Event Report: MED-EL ELEKTROMEDIZINISCHE GERAETE GMBH MED-EL MAESTRO COCHLEAR IMPLANT SYSTEM

Model Number	MI1000 MED-EL CONCERT PIN
Medical Device Problem Code	Impedance Problem (2950)
Health Effect - Clinical Codes	Failure of Implant (1924); No Clinical Signs, Symptoms or Conditions (4582)
Type of Reportable Event	Malfunction
Event or Problem Description
During an upgrade fitting session, all channels were found with high impedance.The date of reimplantation has not been scheduled yet and it will likely place in 2-3 months.
Additional Manufacturer Narrative
Conclusions: based on the received information, a damage to the active electrode due to excessive mechanical stress appears very likely.However to determine an exact root cause device investigation would be necessary.Re-implantation is considered in 2-3 months.This is a combined initial final report.
Additional Manufacturer Narrative
Conclusions: overload fractures in the active electrode which are consistent with an external mechanical impact were determined to be the root cause of device failure.Other mechanical damages found are attributable to the removal surgery.The problems given in the recipient report appear to match the damage found.This is a final report.
Event or Problem Description
During an upgrade fitting session, all channels were found with high impedance.The user has been re-implanted.

• Brand Name: MED-EL MAESTRO COCHLEAR IMPLANT SYSTEM
• 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: 16239191
• Report Number: 9710014-2023-00061
• Device Sequence Number: 17780293
• Product Code: MCM
• UDI-Device Identifier: 09008737062750
• UDI-Public: (01)09008737062750
• 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: 2017
• Device Explanted Year: 2024
• 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): 05/05/2025

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: 04/19/2020
• Device Model Number: MI1000 MED-EL CONCERT PIN
• Device Catalogue Number: 07680
• 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: 01/19/2023
• Supplement Date Received by Manufacturer: 01/19/2023
• Initial Report FDA Received Date: 01/25/2023
• Supplement Report FDA Received Date: 05/06/2025
• Was Device Evaluated by Manufacturer? (Y/N): Yes
• Date Device Manufactured: 04/19/2017
• 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: 11 YR
• Patient Sex: Male