This is a technical overview of an INVAMED device within the varicose vein portfolio. 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. 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. Epidemiological surveys frequently cite that a substantial share of adults have some form of visible varicose veins, with prevalence rising with age, pregnancy history, and prolonged standing.
ThermoBLOCK Thermal Coagulation RF Ablation Small Vein Needle: Overview
RF ablation needle in the ThermoBLOCK family for thermal coagulation of small varicose veins and superficial venous segments that are not suited to catheter-based ablation.
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. Sclerotherapy injects a liquid or foamed agent that irritates the vein lining and causes it to close, and is often used for smaller tributary and spider veins. Endovenous laser ablation delivers laser energy through a thin optical fiber positioned inside the target vein under ultrasound guidance.
Key Considerations
- Graduated compression is commonly used after ablation to support the treated limb, per clinician protocol.
- Device figures cited by INVAMED describe studied performance and should not be read as individual guarantees.
- All INVAMED venous devices are intended for use by trained clinicians under ultrasound guidance and per the IFU.
Frequently Asked Questions
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.
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).
Can varicose veins come back after treatment?
Treated veins are intended to stay closed, but new varicose veins can develop over time because treatment addresses existing disease rather than the underlying predisposition.
About INVAMED
Device availability and regulatory status vary by country. Please contact INVAMED or your authorized local distributor for current regulatory information applicable to your region.
Clinical and Technical Context
Modern management has shifted from open surgical stripping toward catheter-based endovenous techniques that are typically performed under local anesthesia in an outpatient setting. The absence of thermal energy means nerve-injury risk associated with heat is generally reduced, though suitability still depends on individual anatomy. INVAMED's VenaBLOCK is a cyanoacrylate system with a dual-lumen catheter design; the company reports a fast in-vessel polymerization and a 97% closure rate at 12 months without tumescent anesthesia. INVAMED's ThermoBLOCK system pairs an RF generator with dedicated catheters and stylets and, according to the company, maintains vein-wall temperatures in the 85–120 °C range depending on protocol. A staged, anatomy-led approach is standard, and the sequence of treatment is planned by the treating physician. INVAMED's VenaBLOCK is its NTNT offering; candidacy is still assessed individually because vein size and location influence which method is appropriate. 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. 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.
Related on INVAMED
- Varicose Vein — product category
- Varicose Vein: A Complete Technical Guide
- Is varicose vein treatment painful?
- What is the difference between thermal and non-thermal vein ablation?
Important Disclaimer
This article is intended for general educational and technical information about medical device technologies. It is not medical advice, a diagnosis, or a treatment recommendation, and it does not replace consultation with a qualified healthcare professional. Any decision about diagnosis or treatment should be made by a licensed clinician based on an individual assessment. INVAMED devices are intended for use by trained healthcare professionals in accordance with the applicable Instructions for Use (IFU) and local regulatory approvals. Product availability and indications vary by country.
Reviewed by the INVAMED Medical Affairs team. Content is educational and technical in nature.