FRED™ XProduct Code (REF): XFRED2508
FRED™ X is the next-generation FRED flow diverter featuring X Technology — a proprietary nanoscale surface treatment covalently bonded to the nitinol strands. The X Technology treatment is designed to reduce the material's thrombogenic potential at the blood-device interface without impeding the natural vessel wall healing response that is essential for aneurysm occlusion after flow diversion. In practical terms, this means the device may require less aggressive antiplatelet pretreatment in some patient profiles, though antiplatelet protocols remain physician-dependent. Beyond the surface treatment, FRED X introduces two procedural improvements: reduced delivery forces and reduced retraction forces relative to the original FRED, which improve navigability in tortuous anatomy and allow more controlled repositioning before final deployment. These refinements make FRED X preferable in vessels with significant cervical or intracranial tortuosity where the original FRED's delivery forces could cause the catheter to whip or the device to migrate during placement. FRED X extends the size range downward relative to original FRED, with implant diameters starting at 2.5 mm (for distal ICA and MCA M1 aneurysms) through 5.5 mm. The 2.5–3.0 mm System 21 variants are delivered via Headway 21; the 3.5–5.5 mm System 27 variants via Headway 27.
This page documents catalog code (REF) XFRED2508, one of 29 available configurations of the FRED™ X. See the full FRED™ X overview for every configuration.
Available under product codes XFRED2508, XFRED2513, XFRED2520, XFRED2526, XFRED3009, XFRED3014, XFRED3021, XFRED3027 and 21 more (see Ordering Information below).
Sizes & Specifications
- Implant diameter
- 2.5 mm – 5.5 mm
- Systems
- 21 (2.5–3.0 mm) / 27 (3.5–5.5 mm)
- Total length
- 13 mm – 44 mm
- Surface treatment
- X Technology
Manufacturer: Terumo Neuro (MicroVention, Inc.) · Reference source: terumoneuro.com
Design & Technology
Technical characteristics and diagrams as published by Terumo Neuro (MicroVention).
FRED X offers the same precise, predictable placement and immediate opening of the FRED™ device – now with X Technology. Derived from over 30 years of study and use at Terumo, X Technology is a proprietary, nanoscale surface treatment covalently bonded to the device for a permanent chemical change to the device surface. X Technology creates an optimized, protective hydration layer that is designed to allow for selective attachment to the device surface. FRED X is designed to reduce material thrombogenicity while also maintaining the natural vessel healing response. FRED X also features a reduction in delivery and retraction forces for easier tracking through tortuous anatomies.
Designed to Reduce Material Thrombogenicity
FRED X demonstrates a reduction in thrombus formation compared to a bare flow diverter in in-vitro testing.
Designed to Maintain Natural Vessel Healing Response
X Technology maintains comparable endothelial cell growth to that of a bare device as demonstrated in in-vitro cell culture testing.
Optimized For Small Vessel Flow Diversion
FRED X 2.5mm and 3.0mm diameter devices are deliverable through Headway 21 and have no distal lead wire.
Product Identification & Specifications
Reference identifiers for procurement, registration and tender documentation.
| Product Code | XFRED2508 |
|---|---|
| REF Numbers | XFRED2508, XFRED2513, XFRED2520, XFRED2526, XFRED3009, XFRED3014, XFRED3021, XFRED3027, XFRED3507, XFRED3511, XFRED3516, XFRED3524, XFRED3536, XFRED4007, XFRED4012, XFRED4017, XFRED4026, XFRED4038, XFRED4508, XFRED4513, XFRED4518, XFRED4528, XFRED4539, XFRED5009, XFRED5014, XFRED5019, XFRED5029, XFRED5514, XFRED5526 |
| Manufacturer | Terumo Neuro (MicroVention, Inc.) |
| Brand | Terumo Neuro (MicroVention) |
| Product Family | Flow Diversion & Stents |
| Country Availability | Azerbaijan |
Clinical Applications
The FRED™ X is a flow diverter in the Flow Diversion & Stents family from Terumo Neuro (MicroVention, Inc.), used by interventional specialists in procedures where a flow diverter of this class is indicated. It is supplied in 29 configurations (catalog codes XFRED2508 through XFRED5526) to match anatomical and procedural requirements.
For the complete indications for use, contraindications and instructions for use (IFU), request the official Terumo Neuro (MicroVention) documentation through our clinical team. Azmed Devices supplies the FRED™ X to hospitals and clinics across Azerbaijan.
Ordering Information
Catalog reference codes as published by Terumo Neuro (MicroVention). Contact us to confirm current availability.
| Catalog # | System | Diameter × Total Length (mm) | Working Length / Total Length by Target Vessel (mm) |
|---|---|---|---|
| XFRED2508 | 21 | 2.5 x 13 | 2.0mm: 11/15 · 2.5mm: 8/13 |
| XFRED2513 | 21 | 2.5 x 18 | 2.0mm: 17/21 · 2.5mm: 13/18 |
| XFRED2520 | 21 | 2.5 x 25 | 2.0mm: 28/32 · 2.5mm: 20/25 |
| XFRED2526 | 21 | 2.5 x 30 | 2.0mm: 35/38 · 2.5mm: 26/30 |
| XFRED3009 | 21 | 3.0 x 13 | 2.5mm: 12/16 · 3.0mm: 9/13 |
| XFRED3014 | 21 | 3.0 x 19 | 2.5mm: 19/23 · 3.0mm: 14/19 |
| XFRED3021 | 21 | 3.0 x 27 | 2.5mm: 29/34 · 3.0mm: 21/27 |
| XFRED3027 | 21 | 3.0 x 32 | 2.5mm: 37/41 · 3.0mm: 27/32 |
| XFRED3507 | 27 | 3.5 x 13 | 3.0mm: 10/16 · 3.5mm: 7/13 |
| XFRED3511 | 27 | 3.5 x 17 | 3.0mm: 17/22 · 3.5mm: 11/17 |
| XFRED3516 | 27 | 3.5 x 22 | 3.0mm: 24/30 · 3.5mm: 16/22 |
| XFRED3524 | 27 | 3.5 x 31 | 3.0mm: 37/43 · 3.5mm: 24/31 |
| XFRED3536 | 27 | 3.5 x 40 | 3.0mm: 49/54 · 3.5mm: 36/40 |
| XFRED4007 | 27 | 4.0 x 13 | 3.5mm: 10/16 · 4.0mm: 7/13 |
| XFRED4012 | 27 | 4.0 x 18 | 3.5mm: 18/24 · 4.0mm: 12/18 |
| XFRED4017 | 27 | 4.0 x 23 | 3.5mm: 26/31 · 4.0mm: 17/23 |
| XFRED4026 | 27 | 4.0 x 32 | 3.5mm: 37/43 · 4.0mm: 26/32 |
| XFRED4038 | 27 | 4.0 x 44 | 3.5mm: 53/58 · 4.0mm: 38/44 |
| XFRED4508 | 27 | 4.5 x 15 | 4.0mm: 11/18 · 4.5mm: 8/15 |
| XFRED4513 | 27 | 4.5 x 20 | 4.0mm: 19/26 · 4.5mm: 13/20 |
| XFRED4518 | 27 | 4.5 x 25 | 4.0mm: 27/34 · 4.5mm: 18/25 |
| XFRED4528 | 27 | 4.5 x 34 | 4.0mm: 39/45 · 4.5mm: 28/34 |
| XFRED4539 | 27 | 4.5 x 34 | 4.0mm: 56/62 · 4.5mm: 39/45 |
| XFRED5009 | 27 | 5.0 x 15 | 4.5mm: 12/18 · 5.0mm: 9/15 |
| XFRED5014 | 27 | 5.0 x 21 | 4.5mm: 20/26 · 5.0mm: 14/21 |
| XFRED5019 | 27 | 5.0 x 26 | 4.5mm: 28/35 · 5.0mm: 19/26 |
| XFRED5029 | 27 | 5.0 x 36 | 4.5mm: 41/48 · 5.0mm: 29/36 |
| XFRED5514 | 27 | 5.5 x 22 | 5.0mm: 22/28 · 5.5mm: 14/22 |
| XFRED5526 | 27 | 5.5 x 32 | 5.0mm: 38/46 · 5.5mm: 26/32 |
Downloads & Documentation
Instructions for use (IFU), technical datasheets and clinical literature for the FRED™ X are available on request from our clinical team.
Request DocumentationFrequently Asked Questions
- What is FRED™ X and how does it differ from the original FRED™?
- FRED™ X is the next-generation FRED flow diverter featuring X Technology — a nanoscale surface treatment covalently bonded to the nitinol strands that reduces material thrombogenicity at the blood-device interface. It also features reduced delivery and retraction forces for improved navigability in tortuous anatomy, and extends the size range downward to 2.5 mm to treat distal and smaller-vessel aneurysms.
- What sizes does FRED™ X come in?
- FRED X is available in System 21 (2.5–3.0 mm implant diameter, catalog XFRED2508–XFRED3027, delivered via Headway 21) and System 27 (3.5–5.5 mm implant diameter, catalog XFRED3513–XFRED5526, delivered via Headway 27). Total implanted lengths range from 13 mm to 44 mm across the full size range.
- What is X Technology on FRED™ X?
- X Technology is a proprietary nanoscale surface treatment covalently bonded to the nitinol strands of FRED X. The treatment is designed to reduce the device’s thrombogenic potential at the blood-device interface without impeding the natural vessel wall healing response essential for aneurysm occlusion after flow diversion.
- What microcatheter delivers FRED™ X?
- FRED X System 21 (2.5–3.0 mm) is delivered via Headway 21 (0.021 in ID). FRED X System 27 (3.5–5.5 mm) is delivered via Headway 27 (0.027 in ID). Both systems use standard triaxial technique with a 6Fr guide catheter or long sheath, an intermediate catheter (SOFIA 6F or similar), and the delivery microcatheter.
- Is FRED™ X suitable for distal intracranial aneurysms?
- Yes. The FRED X System 21 (2.5–3.0 mm) extends flow diversion to smaller, more distal vessels that were previously outside the treatment range of larger-diameter flow diverters. This includes distal ICA, proximal MCA M1, and anterior communicating artery aneurysms that arise in vessels less than 3.0 mm in diameter.
