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
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. 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. Modern management has shifted from open surgical stripping toward catheter-based endovenous techniques that are typically performed under local anesthesia in an outpatient setting.
VenaBLOCK Non-Thermal Treatment for Vein Disease & Varicose Veins: Overview
Cyanoacrylate-based non-thermal vein closure system (known internationally as 'Turkish Glue') for superficial venous incompetence of the great saphenous, small saphenous and perforator veins. A proprietary n-BCA-modified polymer — a ready-to-use, blue-colored transparent adhesive — is delivered endovenously under ultrasound guidance through a dual-lumen catheter and polymerizes rapidly, sealing the incompetent vein under external compression with minimal or no tumescent anesthesia and no heat-related skin burn or nerve injury risk. A red 630 nm laser integrated into the catheter shaft improves visibility and tracking through tortuous venous segments.
Technical Specifications
Specifications per INVAMED product documentation; confirm current details in the official IFU.
| Attribute | Detail |
|---|---|
| Dual-lumen catheter | 0.5 mm ID lumen for cyanoacrylate injection, 0.9 mm ID lumen for laser or other adjunct therapy |
| Specification | PTFE-lined braided 4F-6F catheter shaft, 100 cm length with markings every 2 cm for depth control |
| Specification | Cyanoacrylate adhesive with fast in-vessel polymerization; ultrasound-guided catheter-based injection |
| Specification | Minimal or no tumescent anesthesia needed |
| Specification | authorized for the European market under the Medical Device Directive (the earlier European regulatory framework 93/42/EEC); manufactured in internationally recognized quality management standards certified facilities |
Reported Performance
According to INVAMED, 97% closure rate at 12 months without tumescent anesthesia. According to INVAMED, clinical publications report a success rate of around 96%. According to INVAMED, cyanoacrylate-modified polymer rapidly polymerizes in under one second. 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. Cyanoacrylate closure is a non-thermal method that deposits a small volume of medical adhesive inside the vein, which polymerizes and seals the lumen. Radiofrequency ablation uses a catheter that heats the vein wall through radiofrequency energy rather than laser light, typically in controlled segmental cycles.
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.
- Because varicose disease reflects an ongoing tendency, follow-up and surveillance help detect new reflux early.
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.
Is endovenous ablation done as day surgery?
Endovenous ablation is typically an outpatient, minimally invasive procedure performed under local anesthesia, though the exact setting is determined by the clinician and facility.
What is the regulatory status of these devices?
Device availability and regulatory status vary by country. Please contact INVAMED or your authorized local distributor for current regulatory information applicable to your region.
Related on INVAMED
- Varicose Vein — product category
- How soon can I walk after vein ablation?
- What is the difference between thermal and non-thermal vein ablation?
- Vein glue (cyanoacrylate) or Radiofrequency ablation? A Technical Comparison
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.