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

Model Number	MI1200 SYNCHRONY
Medical Device Problem Code	Impedance Problem (2950)
Health Effect - Clinical Codes	Head Injury (1879); Failure of Implant (1924); No Clinical Signs, Symptoms or Conditions (4582)
Date of Event	05/08/2023
Type of Reportable Event	Malfunction
Event or Problem Description
The user's hearing performance is affected after a trauma to the head.The user is suffering from cochlear anaplasia.Reimplantation is being considered.
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.
Additional Manufacturer Narrative
Additional information: based on the received information, a damage to the active electrode due to excessive mechanical stress, caused by the reported trauma, appears very likely.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
The user's hearing performance is affected after a trauma to the head.The user has cochlear anaplasia.Re-implantation is being considered.
Event or Problem Description
The user's hearing performance is affected after a trauma to the head.The user was reimplanted on (b)(6) 2025.
Additional Manufacturer Narrative
Additional information: based on the received information, a damage to the active electrode due to excessive mechanical stress, caused by the reported trauma, appears very likely.However, to determine an exact root cause device investigation would be necessary.The concerned device was explanted but has not been received for investigation yet.
Additional Manufacturer Narrative
Conclusion: damage to the active electrode, likely caused by minute device mobility, was determined to have led to device failure over time.The problems given in the recipient report appear to match the damage found.This is a final report.
Event or Problem Description
The user's hearing performance is affected after a trauma to the head.The user was reimplanted on (b)(6) 2025.

• 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: 17585528
• Report Number: 9710014-2023-00725
• Device Sequence Number: 4917217
• Product Code: MCM
• UDI-Device Identifier: 09008737366179
• UDI-Public: (01)09008737366179
• 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: 2023
• 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): 07/17/2025

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: 08/15/2025
• Device Model Number: MI1200 SYNCHRONY
• 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: 08/15/2023
• Supplement Date Received by Manufacturer: 08/15/2023; 08/15/2023; 08/15/2023
• Initial Report FDA Received Date: 08/21/2023
• Supplement Report FDA Received Date: 09/22/2023; 05/26/2025; 07/17/2025
• Was Device Evaluated by Manufacturer? (Y/N): Yes
• Date Device Manufactured: 08/15/2022
• 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: 15 MO
• Patient Sex: Female