This trail is conducted in several centers all around China. 202 subjects with below the knee arterial stenosis or occlusion will be recruited and randomized, this trail compares the efficacy and safety of Drug-coated Balloon (Zylox-Tonbridge) with a similar balloon catheter producted by Acotec. The subjects will be followed up when discharged /in 30 days/ 6 months.
This is a prospective, multicenter, randomized controlled trail using drug-coated balloon to treat below the knee arterial stenosis or occlusion.