
FRED Junior System 2.5 | REF FREDJR2508
Terumo Neuro FRED Junior System 2.5 (REF FREDJR2508) is a low-profile dual-layer flow diverter designed for the endovascular treatment of intracranial aneurysms in smaller parent vessels.

The FRED X Flow Diverter Stent from Terumo Neuro (REF XFRED4508) is a self-expanding, dual-layer braided intracranial flow diverter in a 4.5 mm x 15 mm configuration. It combines the established FRED dual-layer design with the X surface modification, an antithrombogenic phosphorylcholine-based coating intended to reduce material thrombogenicity while preserving device deliverability and wall apposition.
Key Features
- Dual-layer braided construction combining an inner high-density mesh for flow diversion with an outer low-density mesh for vessel wall apposition.
- X surface treatment: covalently bonded biomimetic coating engineered to reduce thrombogenicity of the device surface.
- Nominal sizing: 4.5 mm nominal diameter x 15 mm working length.
- Radiopaque markers at proximal and distal ends and helical tantalum strands to support fluoroscopic visualization during deployment.
- Resheathable and repositionable within the manufacturer-defined deployment window to optimize landing zone placement.
- Designed for delivery through a compatible microcatheter; refer to the current IFU for microcatheter compatibility and access system requirements.
Clinical Applications
- Endovascular treatment of intracranial aneurysms in the cerebral vasculature.
- Suited to parent vessels in the listed diameter range; consult the official sizing chart for vessel diameter and landing zone recommendations.
- Approved indications, patient selection criteria, and contraindications vary by region. Refer to local regulatory labeling and the current Instructions for Use.
Product Information
Brand: Terumo Neuro
Product: FRED X Flow Diverter Stent
Category: Flow Diverter
REF / UPN: XFRED4508
Nominal Diameter: 4.5 mm
Working Length: 15 mm
Surface Treatment: X antithrombogenic surface modification
Configuration: Dual-layer braided, self-expanding
Sterility: Supplied sterile, single use - Not specified in the located sources for sterilization method beyond standard single-use labeling; verify on current IFU.
Storage: Not specified in the located sources.
Packaging quantity: Not specified in the located sources.
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