In the early morning of February, Lin Chen, the teaching secretary of basic surgery of Peking Union Medical College Hospital, opened the window for the first time after getting up and took a deep breath of fresh air. After entering the Winter Olympics closed loop, this is one of the few times she can take off her N95 mask. In her words, the breath at this moment is particularly greedy. Unlike in the past, the medical security of the Beijing Winter Olympic Games is a full closed-loop security that takes into account the epidemic prevention and control, and each diagnosis and treatment process is linked. Every medical staff of the medical security team leaves their families temporarily and forms a medical umbrella for the Beijing Winter Olympics. First praise, precious! Just three minutes before the first team of the medical station of Peking Union Medical College Hospital stepped into the closed-loop line of the Winter Olympic venues, they received a call from a foreign guest complaining of chest pain for several hours. "The ambulances of the venue and the camp quickly transferred the patients to the first ward of the camp." Chen Gang, deputy chief physician of Nephrology Department of Peking Union Medical College Hospital, recalled that after a series of decisive and orderly treatment, the team received the first praise of the Winter Olympic trip. And, of course, the first thank-you note. At that time, a security uncle suddenly had a fever due to a cold. Peng Huiming, deputy chief physician of Beijing Union Medical College Hospital, timely inquired, recorded the epidemic history, explained the precautions for transportation, and completed complex processes such as medical information submission and infectious disease symptom monitoring. "Uncle, will you operate the closed-loop Olympic network to ask for a car back?" "This is our duty phone. Someone will answer it 24 hours a day. You can call back to your place of residence!" Peng Huiming explained the precautions to the patients without omission. Write the Hippocratic oath and act! Liu anlei, deputy chief physician of the emergency department of Peking Union Medical College Hospital, first made up for the knowledge of the Winter Olympics and specially invited a one-to-one foreign teacher to improve his oral English. "All kinds of strict online and offline training and assessment have enabled me to master the high-risk disease types and treatment processes of Winter Olympic sports." Liu anlei said. When on the day shift, Liu anlei started the planning and layout of the medical point less than 7 a.m., transferred medical materials, and assembled the manual elimination rack and UV lamp by himself. One morning, a cleaning aunt accidentally squeezed her hand while cleaning and was bleeding. In the case of initial diagnosis of little finger fracture, fan Junping, deputy chief physician of respiratory and critical care medicine department, stopped the blood instantly with pressure hemostasis, and quickly disinfected and bandaged it. Due to the particularity of the closed loop, doctors can not get the accurate information of patients. They can only rely on careful physical examination and past experience to eliminate greater risks and be afraid to break the patient's condition, which is a real test for every medical security team member. Liu anlei was impressed that BOCOG was not only equipped with a strong language support team, but also arranged professional medical assistants to provide patients with full escort and transfer services. "The medical security work of the Winter Olympic Games connects the medical staff of various countries. We all unreservedly fulfill the 'Hippocratic Oath'." Pick up your skis and go up the mountain! In xiaohaituo mountain, where the somatosensory temperature is more than minus ten degrees Celsius, four clinicians of Beijing Union Medical College Hospital: He Jia of thoracic surgery, Deng Kan of Neurosurgery, Li Qiyi of orthopedics and Che Lu of Anesthesiology began a day of intense preparations for alpine skiing projects. In the next three months, they will temporarily leave their white coats, change into ski clothes, carry rescue bags and provide medical security services at the national alpine skiing center in Yanqing competition area of Beijing Winter Olympic Games. The starting area at the top of xiaohaituo mountain is 2198 meters above sea level, which is the top three difficult track in the world. As soon as they settled in, ski doctors began to be familiar with the terrain and track, cooperate with the construction of medical stations and carry a large number of materials. Alpine skiing is an exciting event. The sliding speed of athletes can reach 150 kilometers per hour. Once there is a small deviation, the body may fall due to loss of balance, and the consequences are more serious. In the past, the probability of injury of athletes in this event was 14%. "Once an athlete needs help, we have to carry a 10kg medical bag, rush to the scene within 4 minutes, complete the athlete's injury assessment and treatment within 15 minutes, and then transfer." Che Lu said that this requires ski doctors to have a certain ability to slide on steep slopes, as well as trauma first aid knowledge and skilled operation skills. At dawn, the ski doctors are about to arrive at the medical station. Che Lu introduced that they have a complete set of operation procedures, check the rescue backpack, confirm whether the items are complete, whether the power of the power on equipment is sufficient, and check the storage of oxygen cylinders. "The body temperature on the mountain is very low, but the cold can't freeze the doctor's benevolence." Che Lu said. From carrying, counting and assembling epidemic prevention materials, to placing rescue boxes and drugs, posting hand hygiene and epidemic prevention signs, to placing patient reception beds and reception vehicles, and setting up patient streamline instructions and temperature measuring doors... 19 Xiehe Medical Support team members are practicing their original intention on the "battlefield" of the winter Olympics. (Xinhua News Agency)