This is a technical overview of an INVAMED device within the varicose vein portfolio. 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. 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
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. 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. 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.
ThermoBLOCK Varicose Vein Radiofrequency Ablation System: Overview
Endovenous radiofrequency ablation platform for incompetent superficial (saphenous and perforator) veins, comprising a feedback-driven RF generator that powers ThermoBLOCK catheters and stylets. Thermal energy destroys the endothelium and the collagen within the vein wall — the catheter heats the vein wall to 120°C, denaturing vein-wall proteins and producing durable closure to relieve varicose symptoms. Multi-mode operation accommodates various vein diameters and lesion characteristics, with continuous intravascular temperature and impedance monitoring and automatic power regulation to maintain stable thermal therapy.
Technical Specifications
Specifications per INVAMED product documentation; confirm current details in the official IFU.
| Attribute | Detail |
|---|---|
| System | RF generator + ThermoBLOCK catheters and ThermoBLOCK stylets for chronic venous insufficiency (CVI) |
| Specification | Vein wall heated to 120°C; target temperatures maintained between 85-120°C depending on protocol |
| Specification | Continuous intravascular temperature and impedance feedback with automatic RF power regulation |
| Specification | Multi-mode operation for various vein diameters |
Reported Performance
According to INVAMED, thermoBLOCK delivers radiofrequency ablation for saphenous vein reflux with 95%+ efficacy. 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. The great and small saphenous veins are the most common sources of reflux, so ablation strategies frequently target these axial veins. Chronic venous insufficiency management may combine axial vein ablation with treatment of tributaries and perforators.
Key Considerations
- Accurate duplex ultrasound mapping before treatment is central to identifying the source of reflux and planning device placement.
- Device figures cited by INVAMED describe studied performance and should not be read as individual guarantees.
- Graduated compression is commonly used after ablation to support the treated limb, per clinician protocol.
Frequently Asked Questions
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.
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.
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.
About INVAMED
INVAMED operates a dedicated R&D center (INVAcenter) focused on minimally invasive device development. INVAMED states it maintains a growing portfolio of international patents across its device range.
Clinical and Technical Context
Both thermal and non-thermal INVAMED devices can be applied to saphenous targets, with the choice guided by vein diameter and clinician judgment. Accurate duplex ultrasound mapping before treatment is central to identifying the source of reflux and planning device placement. Graduated compression is commonly used after ablation to support the treated limb, per clinician protocol. 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.
Important Disclaimer
The information here is provided for educational purposes and to describe device technology; it is not a substitute for professional medical advice, diagnosis, or treatment. Only a licensed healthcare provider can determine whether a given procedure or device is appropriate for a specific patient. INVAMED products are restricted to use by qualified professionals following the official IFU. Regulatory clearance and labeling differ between regions, and not all products or indications are available in every market.
Reviewed by the INVAMED Medical Affairs team. Content is educational and technical in nature.