The Terumo Neuro FRED X Flow Diverter Stent (REF XFRED3516, 3.5 mm x 22 mm) is a self-expanding, dual-layer braided flow diverter designed for endovascular reconstruction of the parent artery in the treatment of intracranial aneurysms. The FRED X platform builds on the FRED device design and incorporates a covalently bonded surface modification intended to reduce material thrombogenicity while preserving the dual-layer flow-diverting mechanism.

Key Features
Dual-layer braided design: Combines an inner low-porosity flow-diverting mesh with an outer high-porosity stent for wall apposition and parent vessel reconstruction.
Surface modification: X Technology surface treatment intended to reduce thrombogenic response of the device material.
Radiopaque markers: Tantalum helical strands and end markers to support fluoroscopic visualization of device length, position, and deployment.
Resheathable: Device is designed to be resheathed and repositioned during deployment prior to full release, per the instructions for use.
Single delivery system: Pre-loaded onto a dedicated delivery wire for use with a compatible microcatheter.
Size: Labeled diameter 3.5 mm and labeled length 22 mm.

Clinical Applications
Intracranial aneurysm treatment: Indicated uses, target vessel diameter range, and patient selection criteria are defined by the manufacturer's Instructions for Use and applicable regional regulatory clearances.
Parent artery reconstruction: Intended for endovascular flow diversion across the aneurysm neck to promote intra-aneurysmal flow stagnation and progressive occlusion.
Adjunctive use: May be used in conjunction with standard neurointerventional access systems and antiplatelet regimens as directed by the treating physician.

Product Information
Brand: Terumo Neuro (formerly MicroVention)
Product: FRED X Flow Diverter Stent
Reference / UPN: XFRED3516
Labeled diameter: 3.5 mm
Labeled length: 22 mm
Category: Flow diverter / neurovascular implant
Configuration: Dual-layer braided self-expanding stent with surface modification, pre-loaded on delivery wire
Compatible microcatheter: Refer to manufacturer IFU for compatible microcatheter inner diameter and access requirements
Sterility: Supplied sterile, intended for single use only
Storage: Store as indicated on product labeling
Regulatory status: Availability and approved indications vary by country; Not specified in the located sources for this listing
MR information: Not specified in the located sources