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	Positioning Failure (1158)
Health Effect - Clinical Code	No Clinical Signs, Symptoms or Conditions (4582)
Date of Event	06/23/2026
Type of Reportable Event	Serious Injury
Event or Problem Description
Per the clinic, the tip of the electrode array was inserted and found to be folded over in the cochlea, resulting in the decision to explant the device.The device was explanted (b)(6) 2026, and the patient was reimplanted with another cochlear device during the same surgery.
Additional Manufacturer Narrative
Device analysis report attached.

• 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
• Manufacturer (Section G): Cochlear Ltd; 1 university avenue; macquarie university, nsw 2109 ; AS 2109
• Manufacturer Contact: barathen balamurugan ; unit ug-1, vertical podium; no.8 jalan kerinchi; kuala lumpur, wilayah persekutuan 59200 ; MY 59200
• MDR Report Key: 50033528
• Report Number: 6000034-2026-02693
• Device Sequence Number: 16054526
• Product Code: MCM
• UDI-Device Identifier: 09321502053082
• UDI-Public: (01)09321502053082(11)251119(17)271118
• Combination Product (Y/N): N
• Initial Reporter Country: GM
• PMA/510(K) Number: P970051/S225
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Device Implanted Year: 2026
• Device Explanted Year: 2026
• Serviced by Third Party (Y/N): N
• Reporter Type: Manufacturer
• Report Source: Health Professional
• Type of Report: Initial
• Report Date (Section B): 07/27/2026

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?: Yes
• Date Returned to Manufacturer: 07/09/2026
• Is the Reporter a Health Professional?: No
• Initial Date Received by Manufacturer: 07/06/2026
• Initial Report FDA Received Date: 07/27/2026
• Was Device Evaluated by Manufacturer? (Y/N): Yes
• Date Device Manufactured: 11/19/2025
• 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 Sex: Unknown