Self-expanding nitinol superplastic shape memory alloy stent; Argyle knit design, ensure good stability and bearing properties Wave shaped flanges design, reduce the irritation. More Specifications is available; Unique pipe connection design, ensure that the delivery system is firmly connected. Radiopaque markers to identify the proximal anddistal ends of the stent to aid in accurate placement Selected pipe combination, make the delivery system use smoothly. Flexibletip design to reduce the irritation. Excellent Controlled Release