MAUDE Adverse Event Report: SILK ROAD MEDICAL ENROUTE TRANSCAROTID STENT; STENT, CAROTID

Model Number	SR-0840-CS
Medical Device Problem Code	Adverse Event Without Identified Device or Use Problem (2993)
Health Effect - Clinical Codes	Stroke/CVA (1770); Paralysis (1997); Thrombosis/Thrombus (4440)
Date of Event	03/24/2026
Type of Reportable Event	Serious Injury
Additional Manufacturer Narrative
We are unable to provide the complete unique identifier (udi) # for this product.All available product data has been included in this report.
Event or Problem Description
It was reported that patient experienced a stroke and thrombus was identified within the stent.An enroute transcarotid stent was selected for use in a left sided transcarotid artery revascularization (tcar) procedure.The procedure was completed with no apparent issues, and the patient passed the post procedure neurological check.Approximately 18 days post procedure, the patient experienced a stroke with the inability to move their right extremity and was readmitted to the hospital.Imaging revealed thrombus within the stent.The patient was taking plavix but was switched to brilinita.No intervention was performed as a result of the event.
Event or Problem Description
It was reported that patient experienced a stroke and thrombus was identified within the stent.An enroute transcarotid stent was selected for use in a left sided transcarotid artery revascularization (tcar) procedure.The procedure was completed with no apparent issues, and the patient passed the post procedure neurological check.Approximately 18 days post procedure, the patient experienced a stroke with the inability to move their right extremity and was readmitted to the hospital.Imaging revealed thrombus within the stent.The patient was taking plavix but was switched to brilinita.No intervention was performed as a result of the event.
Additional Manufacturer Narrative
We are unable to provide the complete unique identifier (udi) # for this product.All available product data has been included in this report.Investigation results: ship history review: a ship history review for the reported upn was performed for the reporting customer.Batches 18414162, 18380553, and 18375104 were the most recent batches shipped to the reporting facility within the three-year period preceding the procedure date.There were no manufacturing deviations for any of the three batch numbers that 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 stent 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 STENT
• Common Device Name: STENT, CAROTID
• 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: 24967582
• Report Number: 2124215-2026-22040
• Device Sequence Number: 10580808
• Product Code: NIM
• UDI-Device Identifier: 00811311020478
• UDI-Public: (01)00811311020478
• Combination Product (Y/N): N
• Initial Reporter State: FL
• Initial Reporter Country: US
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Device Implanted Year: 2026
• 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): 07/02/2026

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: SR-0840-CS
• Device Catalogue Number: SR-0840-CS
• 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: 03/25/2026
• Supplement Date Received by Manufacturer: 06/03/2026
• Initial Report FDA Received Date: 04/23/2026
• Supplement Report FDA Received Date: 07/02/2026
• 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: 77 YR
• Patient Sex: Female