Optimizing structural design on biodegradable magnesium alloy vascular stent for reducing strut thickness and raising radial strength

•A structural optimization strategy for thin-walled (100 μm) magnesium alloy vascular stents was proposed.•The radial strength of the optimized thin-walled stent (100 μm) can match the effect of the original thick-walled stent (150 μm).•The foreshortening and coverage of the optimized thin-walled stent are significantly reduced, the vascular damage is smaller, which is expected to have better biocompatibility.