VNUS Medical Technologies

VNUS Medical Technologies is a medical device company that pioneered the use of radiofrequency ablation for the treatment of venous reflux disease, the underlying cause of varicose veins. The company's flagship product, the VNUS Closure system, provides a minimally invasive alternative to traditional vein stripping surgery by using thermal energy to seal diseased veins. Since its inception, the technology has become a standard of care in phlebology and vascular surgery, enabling office-based treatments with faster recovery times. In 2009, the company was acquired by Covidien, which was subsequently acquired by Medtronic, where the VNUS technology continues to be marketed under the ClosureFast brand.