he therapeutic strategy of replacing diseased non⁃vascular lumen with artificial tubular stent is widely used in trachea/bronchus, esophagus, intestine, biliary tract, urethra and other lumens, which is an important means to restore lumen patency, improve symptoms and ameliorate the quality of life of patients. Based on the physiological characteristics of different non⁃vascular lumens, this paper focuses on the structural design optimization strategy of artificial tubular stent, the research and development progress on functional stent, and discusses the future development direction of artificial tubular stent at the same time, aiming to promote the development of non⁃vascular lumen interventional therapy to a more accurate, safer and long⁃term direction.

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