MAUDE Adverse Event Report: Cochlear Ltd Cochlear¿ Nucleus® Nexa® cochlear implant with Slim Straight electrode; Cochlear¿ Nucleus® Nexa® System

Model Number	CI1022
Medical Device Problem Code	Appropriate Device Problem Term/Code Not Available (3191)
Health Effect - Clinical Code	Unspecified Infection (1930)
Type of Reportable Event	Serious Injury
Event or Problem Description
Per the clinic, the patient experienced an infection (site of infection not confirmed).Subsequently, the patient was underwent revision surgery in order to repositioned the receiver/stimulator on (b)(6) 2026.However, it was discovered that the intracochlear electrode wire was inadvertently damaged during the procedure.The receiver/stimulator was then explanted, while the intracochlear electrode array was left in the cochlea, with reimplantation planned at a later date (specific date not reported).Additional information has been requested but has not been made available as of the date of this report.

• Brand Name: Cochlear¿ Nucleus® Nexa® cochlear implant with Slim Straight 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: 50448312
• Report Number: 6000034-2026-03004
• Device Sequence Number: 9762773
• Product Code: MCM
• UDI-Device Identifier: 09321502053082
• UDI-Public: (01)09321502053082(11)250805(17)270804
• Combination Product (Y/N): N
• Initial Reporter State: SC
• 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
• Type of Report: Initial
• Report Date (Section B): 08/26/2026
• Report Date (Section F): 08/26/2026

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: CI1022
• Was Device Available for Evaluation?: No
• Is the Reporter a Health Professional?: No
• Was the Report Sent to FDA?: Yes
• Distributor Facility Aware Date: 07/31/2026
• Date Report to Manufacturer: 07/31/2026
• Initial Date Received by Manufacturer: Not provided
• Initial Report FDA Received Date: 08/26/2026
• 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: Other
• Patient Sex: Female
• Date Report Sent to FDA: 08/26/2026