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

Model Number	DL-344-10-K
Medical Device Problem Code	Signal Artifact/Noise (1036)
Health Effect - Clinical Code	No Clinical Signs, Symptoms or Conditions (4582)
Date of Event	11/12/2025
Type of Reportable Event	Malfunction
Additional Manufacturer Narrative
(b)(4).Neuropace confirmed the ecog and impedance data are suggestive of a potential lead break.The explanted product was not returned to neuropace for analysis.
Event or Problem Description
During a patient ecog review on (b)(6) 2025, signal artifact was observed on the left hippocampal depth lead, indicative of a lead break.The lead was replaced on (b)(6) 2025.

• 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: 23694411
• Report Number: 3004426659-2025-00079
• Device Sequence Number: 10215945
• Product Code: PFN
• UDI-Device Identifier: 00855547005298
• UDI-Public: 010085554700529817270103
• 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: 2024
• Device Explanted Year: 2025
• 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): 12/01/2025

1 Device was Involved in the Event

1 Patient was Involved in the Event

• Is this an Adverse Event Report?: No
• Is this a Product Problem Report?: Yes
• Device Model Number: DL-344-10-K
• Device Catalogue Number: 1007931
• Device Lot Number: 33972-1-1-1
• Type of Report(Section G): Initial
• Initial Date Received by Manufacturer: 11/12/2025
• Initial Report FDA Received Date: 12/02/2025
• 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: Hospitalization; Required Intervention; Other
• Patient Age: 54 YR
• Patient Sex: Male