Control group :The treatment was performed using the intracavity radiofrequency closure generator ClosureRFGTM and the intracavity radiofrequency closure catheter ClosureFastTM manufactured by Medtron

A prospective, multicenter, randomized, controlled clinical trial to verify the safety and efficacy of varicose closure systems for the varicose veins in lower extremities

A long-term follow-up study of a prospective, multi-center, randomized, controlled clinical trial evaluating the safety and efficacy of a kit for sealing varicose veins (formerly known as the Varicose Vein Sealing System) for the treatment of varicose veins in the lower extremities.