近年来,人们所常见的心血管支架、食管支架等大多数种类的支架系统,仅仅有开通闭塞管道的功能。胆道支架是放置在胆道,缓解胆道梗阻的一种支架。主要用于不宜或不愿进行手术治疗的胆道良恶性狭窄和胆瘘患者。近年来,不断研发的新型胆道支架如生物可降解支架、覆 In recent years, most common types of stent systems, such as cardiovascular stents and esophageal stents, have only the function of opening and closing tubes. A biliary stent is a stent that is placed in the biliary tract to relieve biliary obstruction. It is mainly used for benign and malignant biliary stenosis and timid patients who are unfit or unwilling to undergo surgical treatment. In recent years, new biliary stents, such as biodegradable stents, have been continuously researched and developed.