Control and characterization of micro-nano structure properties of biodegradable metal tubes for vascular stents

Biodegradable vascular stents have great application potential in cardiovascular clinical therapy because of their good biocompatibility and biodegradability. Aiming at the problems of slow degradation of zinc alloy stent in body fluid environment and fast degradation of magnesium alloy stent in body fluid environment, this study used plastic deformation to refine and control the microstructure of alloy stent and adjust the degradation rate of alloy stent in body fluid, so as to meet the requirements of clinical application of alloy stent.