MAUDE Adverse Event Report: ADVANCED BIONICS, LLC HIRES¿ 3D ULTRA IMPLANT; COCHLEAR IMPLANT

Model Number	CI-1601-05
Medical Device Problem Code	Adverse Event Without Identified Device or Use Problem (2993)
Health Effect - Clinical Code	Cerebrospinal Fluid Leakage (1772)
Date of Event	03/23/2026
Type of Reportable Event	Serious Injury
Event or Problem Description
The recipient reportedly experienced a cerebrospinal fluid (csf) leak during implant surgery, which was managed intraoperatively, prolonging the procedure by approximately 15 minutes.Advanced bionics is still in the process of obtaining additional information.When additional information is received, a supplemental report will be submitted.
Additional Manufacturer Narrative
Disclaimer: advanced bionics does not intend that this report be any admission of liability, fault or product defect.
Additional Manufacturer Narrative
Additional information: sections b.3 & h.6.Advanced bionics considers the investigation into this reportable event as closed.The recipient's activation went well.This is the final report.Disclaimer: advanced bionics does not intend that this report be any admission of liability, fault or product defect.

• Brand Name: HIRES¿ 3D ULTRA IMPLANT
• Common Device Name: COCHLEAR IMPLANT
• Manufacturer (Section D): ADVANCED BIONICS, LLC; 28515 westinghouse place; valencia CA 91355
• Manufacturer Contact: lacey o'linn ; 28515 westinghouse place; valencia, CA 91355
• MDR Report Key: 24866819
• Report Number: 3006556115-2026-00341
• Device Sequence Number: 21174045
• Product Code: MCM
• UDI-Device Identifier: 00840094456020
• UDI-Public: (01)00840094456020(11)251120(17)281130
• Combination Product (Y/N): N
• Initial Reporter State: SC
• Initial Reporter Country: US
• PMA/510(K) Number: P960058
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Device Implanted Year: 2026
• Serviced by Third Party (Y/N): N
• Reporter Type: Manufacturer
• Report Source: Health Professional
• Initial Reporter Occupation: Other Health Care Professional
• Type of Report: Initial,Followup
• Report Date (Section B): 03/23/2026

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: CI-1601-05
• Was Device Available for Evaluation?: No
• Is the Reporter a Health Professional?: Yes
• Type of Report(Section G): Thirty-Day
• Initial Date Received by Manufacturer: Not provided
• Supplement Date Received by Manufacturer: Not provided
• Initial Report FDA Received Date: 04/13/2026
• Supplement Report FDA Received Date: 04/29/2026
• Was Device Evaluated by Manufacturer? (Y/N): Device Not Returned to Manufacturer
• Date Device Manufactured: 11/20/2025
• 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 Age: 24 MO
• Patient Sex: Male