MAUDE Adverse Event Report: SILK ROAD MEDICAL ENROUTE TRANSCAROTID NEUROPROTECTION SYSTEM; EMBOLIC PROTECTION FILTERING GUIDEWIRE

Model Number	FG12531
Medical Device Problem Code	Adverse Event Without Identified Device or Use Problem (2993)
Health Effect - Clinical Codes	Stroke/CVA (1770); High Blood Pressure/ Hypertension (1908); Low Blood Pressure/ Hypotension (1914); Speech Disorder (4415); Unspecified Tissue Injury (4559)
Date of Event	04/18/2026
Type of Reportable Event	Serious Injury
Additional Manufacturer Narrative
H6: patient codes - e2015 unspecified tissue injury was used to capture the reported "unknown right sided symptoms.".
Event or Problem Description
It was reported that the patient experienced a stroke.An enroute transcarotid neuroprotection system was selected for use in a right sided transcarotid artery revascularization (tcar) procedure.During the procedure, the patient was hypertensive.Post tcar procedure, the patient experienced a stroke with speech issues, hypotension, and other unknown right sided symptoms.The patient was reported to have been admitted to the hospital beyond the standard of care.The patient was expected to fully recover but had not yet recovered at the time of reporting.No further information was provided despite request by boston scientific (bsc).
Event or Problem Description
It was reported that the patient experienced a stroke.An enroute transcarotid neuroprotection system was selected for use in a right sided transcarotid artery revascularization (tcar) procedure.During the procedure, the patient was hypertensive.Post tcar procedure, the patient experienced a stroke with speech issues, hypotension, and other unknown right sided symptoms.The patient was reported to have been admitted to the hospital beyond the standard of care.The patient was expected to fully recover, but had not yet recovered at the time of reporting.No further information was provided despite request by boston scientific (bsc).
Additional Manufacturer Narrative
H6 patient codes - e2015 unspecified tissue injury was used to capture the reported "unknown right sided symptoms." investigation results: device history record (dhr) review: it was confirmed this device met manufacturing specification prior to distribution and there were no manufacturing deviations which could have contributed to the reported event.Labeling review: review of the instructions for use (ifu) confirmed there was relevant content and sufficient guidance with respect to the circumstances described within this complaint.No updates are required to the ifu as a result of this event.Risk review: a review of the enroute transcarotid neuroprotection system device confirmed that the reported event is a known event defined in the product's risk management documentation.This event type has been accounted for during product risk analysis to support acceptable risk benefit for the product.Investigation conclusion: based on a thorough review of the reported complaint, boston scientific has assigned an investigation conclusion code of known inherent risk of device.

• Brand Name: ENROUTE TRANSCAROTID NEUROPROTECTION SYSTEM
• Common Device Name: EMBOLIC PROTECTION FILTERING GUIDEWIRE
• Manufacturer (Section D): SILK ROAD MEDICAL; 1213 innsbruck drive; sunnyvale CA 94089
• Manufacturer (Section G): SILK ROAD MEDICAL INC.; 27th ave north plymouth; minneapolis MN 55447
• Manufacturer Contact: mark mischke ; 4100 hamline ave n; arden hills, MN 55112 ; 7634941632
• MDR Report Key: 25222708
• Report Number: 2124215-2026-27030
• Device Sequence Number: 21282424
• Product Code: NTE
• UDI-Device Identifier: 00811311021062
• UDI-Public: (01)00811311021062(11)251104(10)307215
• Combination Product (Y/N): N
• Initial Reporter State: WV
• Initial Reporter Country: US
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Serviced by Third Party (Y/N): Unknown
• Reporter Type: Manufacturer
• Report Source: Health Professional,Company Representative
• Initial Reporter Occupation: Physician
• Type of Report: Initial,Followup
• Report Date (Section B): 06/30/2026

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: Health Professional
• Device Model Number: FG12531
• Device Catalogue Number: FG12531
• Device Lot Number: 0000307215
• 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: 04/20/2026
• Supplement Date Received by Manufacturer: 06/03/2026
• Initial Report FDA Received Date: 05/19/2026
• Supplement Report FDA Received Date: 06/30/2026
• Date Device Manufactured: 11/04/2025
• 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: Other; Hospitalization
• Patient Age: 54 YR
• Patient Sex: Male