VNUS Medical Technologies, Inc. provides medical devices for the minimally invasive treatment of venous reflux disease primarily in the United States. Its primary product line, the VNUS Closure system, consists of a proprietary radio-frequency generator, and proprietary disposable endovenous catheters to close diseased veins through the application of temperature-controlled radio-frequency energy to treat venous reflux disease, a progressive condition caused by incompetent vein valves in the legs that results in symptoms, such as leg pain, swelling, fatigue, skin ulcers, and painful varicose veins. The company also provides products, including sterile supply kits and other accessory...