The FRED X Flow Diverter Stent from Terumo Neuro (REF XFRED3511) is a self-expanding, dual-layer braided neurovascular implant designed for the endovascular treatment of intracranial aneurysms. This configuration is supplied in a 3.5 mm nominal diameter x 17 mm working length, intended for use in selected intracranial vessels. The device incorporates a proprietary surface modification engineered to reduce material thrombogenicity while preserving the established FRED dual-layer flow-diverting design.

Key Features
- Dual-layer braided construction combining an inner low-porosity flow-diverting mesh with an outer stent layer for vessel wall apposition.
- X surface technology: covalently bonded phosphorylcholine-based modification intended to reduce material thrombogenicity.
- Distal and proximal radiopaque markers plus helical tantalum strands for fluoroscopic visualization of the working length.
- Single-step deployment through a compatible microcatheter, with resheathing capability prior to detachment per the IFU.
- Nominal sizing: 3.5 mm diameter x 17 mm working length (overall device length and microcatheter compatibility: refer to manufacturer IFU).
- Supplied sterile, for single use only.

Clinical Applications
- Endovascular flow diversion for intracranial aneurysms in vessels matching the labeled diameter range.
- Suitable for cases where reduced antiplatelet burden or thrombogenicity mitigation is a procedural consideration, per physician judgment and the device IFU.
- Use restricted to interventional neuroradiologists or neurointerventionalists trained in flow diverter implantation.
- Patient selection, vessel sizing, antiplatelet regimen and procedural technique must follow the official Instructions for Use.

Product Information
- Brand: Terumo Neuro (formerly MicroVention)
- Product: FRED X Flow Diverter Stent
- Category: Flow Diverter / Neurovascular Implant
- Reference (REF/UPN): XFRED3511
- Nominal diameter: 3.5 mm
- Working length: 17 mm
- Overall/total device length: Not specified in the located sources
- Microcatheter compatibility: Not specified in the located sources — refer to manufacturer IFU
- Material: Cobalt-chromium and tantalum braid wires with surface modification (X technology)
- Sterilization: Sterile, single use
- Packaging: Single device per unit
- Regulatory status: Refer to local regulatory labeling for your market.