MAUDE Adverse Event Report: NEUROPACE, INC. NEUROPACE RNS SYSTEM

Model Number	RNS-320-K
Medical Device Problem Code	Adverse Event Without Identified Device or Use Problem (2993)
Health Effect - Clinical Codes	Bacterial Infection (1735); Purulent Discharge (1812)
Date of Event	03/19/2026
Type of Reportable Event	Serious Injury
Additional Manufacturer Narrative
(b)(4) the explanted product was not returned to neuropace for analysis.
Event or Problem Description
On (b)(6) 2026, the physician notified npce that the patient had purulent drainage from the incision site.Explant of the rns system was scheduled.On (b)(6) 2026, the neurologist reported that no cultures were available and that mrsa was suspected.It was noted that shortly after implantation, the patient was involved in a knife fight, arrested, and incarcerated, during which time he began to show signs of infection.Medical care was delayed as a result of his arrest, and by the time he was evaluated by a surgeon, the infection had progressed, necessitating device removal.The exact explant date is not known at this time.

• Brand Name: NEUROPACE RNS SYSTEM
• Common Device Name: NEUROPACE RNS SYSTEM
• Manufacturer (Section D): NEUROPACE, INC.; 455 n. bernardo ave.; mountain view CA 94043
• Manufacturer (Section G): NEUROPACE, INC.; 455 n. bernardo ave.; mountain view CA 94043
• Manufacturer Contact: ramona gonis ; 455 n. bernardo ave.; mountain view, CA 94043 ; 5108822607
• MDR Report Key: 25115805
• Report Number: 3004426659-2026-00051
• Device Sequence Number: 18473084
• Product Code: PFN
• UDI-Device Identifier: 00855547005366
• UDI-Public: 010085554700536617260919
• Combination Product (Y/N): N
• Initial Reporter State: CA
• Initial Reporter Country: US
• PMA/510(K) Number: P100026
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Device Implanted Year: 2026
• Device Explanted Year: 2026
• Serviced by Third Party (Y/N): Unknown
• Reporter Type: Manufacturer
• Report Source: Health Professional,Company Representative
• Initial Reporter Occupation: Non-Healthcare Professional
• Type of Report: Initial
• Report Date (Section B): 05/06/2026

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
• Device Model Number: RNS-320-K
• Device Catalogue Number: 1008191
• Device Lot Number: 36103-1-1-1
• Type of Report(Section G): Thirty-Day
• Initial Date Received by Manufacturer: 03/19/2026
• Initial Report FDA Received Date: 05/07/2026
• Was Device Evaluated by Manufacturer? (Y/N): No
• 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: Other; Required Intervention; Hospitalization
• Patient Age: 24 YR
• Patient Sex: Male