Tonglu Youshi Medical Instrument Co., Ltd is the pioneer and manufacturer of medical endoscopic instruments in China. our products are widely being used clinical diagnosis and minimally invasive operation. and covering in the field of urology, gynecology, ENT, anus-enterology, orthopaedics and laparosurgery. We have contributed to the furtherance of dissemination and development of minimally invasion operation. Our company has complete quality management system. We passed the ISO900 1 : 2000 and ISO 13485 : 2003 quality management system and got CE certificate. meanwhile, we have got the FDA registration.