Yang Benxun, a leading expert in this field, was a deputy director of the varicose veins faculty at People’s Liberation Army 403 hospital. Director Yang has often gone to the US and Korea to do advanced study and training. Since year 2000, Yang Benxun was the first to introduce the “Minimally invasive treatment of varicose veins on fixed position with Doppler Ultrasound guidance technology” in China. In 10 years, more than 10,000 varicose vein surgeries from domestic and overseas were performed using this technology which received great results.