Changsha city in Hunan province, China. Place: Changsha Center Hospital, Hunan province. City Area: 11,819 square kilometers City population: 714.66 million   I watched the whole process of chest drainage surgery, introduced by Yang Jicheng, who is a thoracic surgeon attending doctor at this capital. During the field research in China, I also had research opportunity of chest drainage management, mostly performed by nurses, where I found out lots of design opportunities about the Chong canister, which was the most popular chest drainage canister used all over the  China Then I went back to Umea, Sweden, met Fredrik Homner who is a thoracic surgery doctor working in Norrlands University Hospital for almost 30 years. I told him what I saw in China and we exchanged lots of opinion about chest drainage. I realized that Chinese chest drainage patients were suffering unnecessary pain from outmoded equipment, which in Sweden they had already updated since 20 years ago. Whit help of Fredrik Holmner, I had opportunity to watch the whole process of pulmonary resection and endoscope technical, the focus of this process was the insertion of chest drainage tube at the end of this 5 hours surgery. After I had seen so many materials related to chest drainage, I found out my design focus, which was the Maquet Oasis Drain,  that had been recognized as the most advanced chest drainage equipment in the world and had been widely used in Europe and United States.