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

Model Number	MI1000 MED-EL CONCERT
Medical Device Problem Code	Impedance Problem (2950)
Health Effect - Clinical Codes	Failure of Implant (1924); No Clinical Signs, Symptoms or Conditions (4582)
Date of Event	05/20/2024
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
A possible device malfunction was reported.
Additional Manufacturer Narrative
Additional information: based on the received information, a damage to the active electrode due to excessive mechanical stress seems very likely.Further in situ measurements showed temporarily high ground path impedance (gpi), which was likely caused by a transient air bubble over the reference electrode.However to determine an exact root cause device investigation would be necessary.Re-implantation is considered but no date has been scheduled yet.
Event or Problem Description
A possible device malfunction was reported.It is considered to proceed with reimplantation, but no date has been scheduled.
Event or Problem Description
The user's hearing performance with the device is affected.Re-implantation is considered as soon as possible.
Additional Manufacturer Narrative
Additional information: based on the received information, a damage to the active electrode due to excessive mechanical stress seems very likely.Further in situ measurements showed temporarily high ground path impedance (gpi), which was likely caused by a transient air bubble over the reference electrode.However to determine an exact root cause device investigation would be necessary.Re-implantation is considered but no date has been scheduled yet.
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.Furthermore, in situ measurements showed temporarily high ground path impedance (gpi), which was likely caused by a transient air bubble over the reference electrode.The problems given in the recipient report appear to match the damage found.This is a final report.
Event or Problem Description
The user suddenly was not hearing well with the device.The user has been re-implanted.

• Brand Name: CONCERTO
• 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: 19456717
• Report Number: 9710014-2024-00498
• Device Sequence Number: 6652909
• Product Code: MCM
• UDI-Device Identifier: 09008737062682
• UDI-Public: (01)09008737062682
• 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: 2022
• 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,Followup,Followup,Followup
• Report Date (Section B): 09/02/2025

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: 03/17/2023
• Device Model Number: MI1000 MED-EL CONCERT
• 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: 05/24/2024
• Supplement Date Received by Manufacturer: 05/24/2024; 05/24/2024; 05/24/2024
• Initial Report FDA Received Date: 06/04/2024
• Supplement Report FDA Received Date: 06/20/2024; 04/09/2025; 09/02/2025
• Was Device Evaluated by Manufacturer? (Y/N): Yes
• Date Device Manufactured: 03/17/2020
• 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: 4 YR
• Patient Sex: Male