The FRED System 3.5 (REF FRED3507) from Terumo Neuro is a dual-layer self-expanding flow diverter intended for endovascular use in the neurovascular treatment of intracranial aneurysms. The device combines an inner low-porosity mesh with an outer high-radial-force stent in a single integrated implant, supporting flow diversion across the aneurysm neck while maintaining parent artery patency.

Key Features
Dual-layer braided design integrating a low-porosity inner mesh and an outer support stent in one delivery step.
Radiopaque distal and proximal markers, plus helical tantalum strands, to aid fluoroscopic visualization during deployment.
Self-expanding nitinol construction engineered for vessel wall apposition across tortuous neurovascular anatomy.
Resheathable and repositionable prior to final detachment to support accurate placement.
Pre-loaded on a delivery system designed for compatibility with commonly used neurovascular microcatheters (refer to the manufacturer IFU for specific compatibility).

Clinical Applications
Endovascular flow diversion for intracranial aneurysms in appropriately selected vessels.
Reconstruction of the parent artery across wide-neck, large or giant aneurysms where flow diversion is indicated.
Use as part of neurointerventional procedures performed by trained physicians under fluoroscopic guidance. Clinical suitability and indications are defined by the official Instructions for Use and applicable regional regulatory clearances.

Product Information
Brand: Terumo Neuro
Product: FRED System 3.5
REF / UPN: FRED3507
Category: Flow Diverter (Neurovascular Implant)
Implant Diameter (nominal): 3.5 mm
Implant Length: Not specified in the located sources
Material: Nitinol braid with tantalum radiopaque strands
Delivery System Length / Microcatheter Compatibility: Not specified in the located sources
Sterility: Supplied sterile, single use
Always consult the official Terumo Neuro Instructions for Use for complete specifications, warnings, contraindications and procedural guidance.