ABSTRACT
Minimally invasive technique has been widely applied and recognized in gastrointestinal surgery. In recent years, technological innovation related to minimally invasive technology emerges in endlessly. The application of 4K ultra-high definition video display technology has played impartment roles in promoting the development of surgery, technical specifications and training of minimally invasive gastrointestinal surgery. Clearly understand the anatomical structure of the inferior pyloric region is an important theoretical basis for the dissection of No. 6 lymph node. Careful anatomy with good patience of the surgeons, and good cooperation between the surgeon and assistants are helpful to reduce and prevent complications. The authors investigate the infrapyloric lymph node dissection in 4K laparoscopic radical gastrectomy with the surgeon on right position.