Interventional therapy is the new treatment between surgical and medical treatment

and the non-vascular interventional treatment includes bile duct

esophagus

trachea and other bureaucratic.Non-vascular biodegradable stents have great biocompatible with bureaucratic

and they will degrade into harmless small molecules out of the body during a certain time after stents are replanted in body.In this paper

the research progress of non-vascular biodegradable stents were reviewed

and material selection

shape design

stent process (including stent molding

film modification and drug treatment)

Performance tests (including physical properties

mechanical properties

biocompatibility

degradation properties

etc.) and progress in clinical application of non-vascular biodegradable stents were mainly introduced.