MAUDE Adverse Event Report: COCHLEAR LTD COCHLEAR¿ NUCLEUS® NEXA® COCHLEAR IMPLANT WITH CONTOUR ADVANCE® ELECTRODE; COCHLEAR¿ NUCLEUS® NEXA® SYSTEM

Model Number	CI1012
Medical Device Problem Code	Positioning Failure (1158)
Health Effect - Clinical Code	Appropriate Clinical Signs, Symptoms and Conditions Term/Code Not Available (4581)
Date of Event	04/14/2026
Type of Reportable Event	Serious Injury
Event or Problem Description
Per the clinic, the electrode was accidentally placed into vestibule during the surgery due to abnormal anatomy.It was reported that, post operative ct scan was performed and revealed that the implant was placed into vestibule, resulting in the decision to explant the device.The device was explanted on (b)(6) 2026; and the patient was reimplanted with another cochlear device during the same surgery.

• Brand Name: COCHLEAR¿ NUCLEUS® NEXA® COCHLEAR IMPLANT WITH CONTOUR ADVANCE® ELECTRODE
• Common Device Name: COCHLEAR¿ NUCLEUS® NEXA® SYSTEM
• Manufacturer (Section D): COCHLEAR LTD; 1 university avenue; macquarie university, nsw 2109 ; AS 2109
• MDR Report Key: 25179589
• Report Number: 6000034-2026-01908
• Device Sequence Number: 10385432
• Product Code: MCM
• UDI-Device Identifier: 09321502069847
• UDI-Public: (01)09321502069847(11)250918(17)270917
• Combination Product (Y/N): N
• Initial Reporter State: CA
• Initial Reporter Country: US
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Device Implanted Year: 2025
• Device Explanted Year: 2026
• Serviced by Third Party (Y/N): N
• Reporter Type: Importer
• Initial Reporter Occupation: Other
• Type of Report: Initial
• Report Date (Section B): 05/15/2026
• Report Date (Section F): 05/15/2026

1 Device was Involved in the Event

1 Patient was Involved in the Event

• Is this an Adverse Event Report?: Yes
• Is this a Product Problem Report?: No
• Operator of Device: Lay User/Patient
• Device Model Number: CI1012
• Was Device Available for Evaluation?: Device Returned to Manufacturer
• Date Returned to Manufacturer: 04/24/2026
• Was the Report Sent to FDA?: Yes
• Distributor Facility Aware Date: 04/24/2026
• Event Location: Hospital
• Date Report to Manufacturer: 04/24/2026
• Initial Date Received by Manufacturer: Not provided
• Initial Report FDA Received Date: 05/14/2026
• Is This a Single-Use Device that was Reprocessed and Reused on a Patient? (Y/N): No
• Patient Sequence Number: 1
• Outcome Attributed to Adverse Event: Required Intervention
• Patient Age: 53 YR
• Patient Sex: Female
• Date Report Sent to FDA: 05/15/2026