Professor Jiang Gening, Director of Thoracic Surgery at Shanghai Pulmonary Hospital, Tongji University, in collaboration with Professor Chen Xiaofeng and Associate Professor Wang Hao, has successfully performed transcervical thymectomy for more than 20 patients with thymic disease through a small incision in the neck with a self-developed transcervical thymic retractor. This operation has successfully pioneered the minimally invasive surgery for thymic diseases in China. According to the introduction, most of the previous thymus surgeries went through a median splitting of the sternum, and the surgical incision was more than 20 cm long and the surgery was traumatic; while the thoracoscopic or robotic surgery developed in recent years also required 3-5 small holes to complete the surgery. At the same time, both methods inevitably have the problem of long-term chronic chest wall pain after surgery. In Europe and the United States, thymic surgery through a small incision in the neck has been carried out, but this procedure requires special surgical retractors, which have not been carried out in China so far. With years of clinical experience in thoracic surgery and mechanical mechanics experiments, Prof. Jiang Gning and Dr. Song Nan, with the support of Shanghai Medical Equipment Factory, have innovated a similar surgical retractor, which is highly innovative. With this instrument, the anterior mediastinum can be fully exposed, increasing the operating space and making minimally invasive thymectomy through a small neck incision a reality.