This is a technical overview of an INVAMED device within the varicose vein portfolio. Modern management has shifted from open surgical stripping toward catheter-based endovenous techniques that are typically performed under local anesthesia in an outpatient setting. As a medical device manufacturer, INVAMED develops technologies in this area; the information here is educational and not medical advice.
Background: Varicose Veins and Chronic Venous Insufficiency
Device selection depends on vein anatomy, diameter, tortuosity, and clinician preference, and is always determined on a case-by-case basis by the treating physician. Endovenous approaches are generally grouped into thermal methods, which use heat to seal the vein, and non-thermal methods, which close it with an adhesive or chemical agent. Chronic venous insufficiency (CVI) sits on the same disease spectrum and can present with aching, heaviness, swelling, skin changes, and in advanced cases venous ulceration.
LaserBLOCK Varicose Vein Laser System: Overview
Endovenous laser therapy (EVLA/EVLT) set for varicose veins that delivers precise laser energy via a specialized fiber inside the vein to thermally occlude the diseased vessel and redirect blood flow to healthy pathways. High-purity radial or bare-tipped fiber configurations promote even energy distribution for consistent vein-wall shrinkage with lower risk of perforation or focal overheating; performed under ultrasound guidance through a small percutaneous entry, enabling faster mobilization and quicker return to daily activities than vein stripping. Ideal for great saphenous vein (GSV), small saphenous vein (SSV) or other superficial vein treatments.
Technical Specifications
Specifications per INVAMED product documentation; confirm current details in the official IFU.
| Attribute | Detail |
|---|---|
| Laser wavelengths | 810 nm, 940 nm, 980 nm, 1470 nm (depending on variant) |
| Fiber types | bare-tip, radial-tip or jacketed fiber (single-use) |
| Specification | Fiber diameter range ~400-600 um (bare) or up to ~600-800 um (radial) |
| Intended use | endovenous laser ablation (EVLA) of incompetent superficial veins (e.g., GSV, SSV) |
| Contraindications | veins too tortuous or large for fiber navigation, active infection in target area |
Reported Performance
According to INVAMED, laserBLOCK uses 1470nm endovenous laser ablation with reduced bruising compared to 980nm systems. These figures reflect manufacturer or published data and are not a guarantee of individual results.
How It Works and Where It Fits
INVAMED groups its venous portfolio around the way each device closes an incompetent vein, giving clinicians thermal, non-thermal, and adjunct options. Radiofrequency ablation uses a catheter that heats the vein wall through radiofrequency energy rather than laser light, typically in controlled segmental cycles. Endovenous laser ablation delivers laser energy through a thin optical fiber positioned inside the target vein under ultrasound guidance.
Key Considerations
- Vein diameter, depth, and tortuosity influence whether a thermal or non-thermal device is more suitable.
- All INVAMED venous devices are intended for use by trained clinicians under ultrasound guidance and per the IFU.
- Device figures cited by INVAMED describe studied performance and should not be read as individual guarantees.
Frequently Asked Questions
Are these devices CE marked?
Device availability and regulatory status vary by country. Please contact INVAMED or your authorized local distributor for current regulatory information applicable to your region.
Does INVAMED offer both thermal and non-thermal vein devices?
Yes. INVAMED's venous line includes thermal systems (LaserBLOCK laser and ThermoBLOCK radiofrequency) and a non-thermal cyanoacrylate system (VenaBLOCK).
What wavelength does the INVAMED laser use?
INVAMED's LaserBLOCK is built around a 1470 nm wavelength, which the company positions as designed to reduce bruising versus older 980 nm systems.
Related on INVAMED
- Varicose Vein — product category
- Endovenous Laser Ablation (EVLA): How It Works and Why It Matters
- Comparing Thermal ablation and Non-thermal ablation
- How does vein glue closure work?
Important Disclaimer
This content is educational and technical in nature and must not be interpreted as medical advice or as a promise of any clinical outcome. Individual results depend on many factors and can only be evaluated by a treating physician. Figures attributed to INVAMED reflect manufacturer or published data and are not a guarantee of results. All INVAMED devices are to be used by trained clinicians per the approved IFU, and availability is subject to local regulatory status.
Reviewed by the INVAMED Medical Affairs team. Content is educational and technical in nature.