• Patient must between 1 and 60 years old

• Patients being clinically diagnosed with CoA or patients with post-operative anastomotic stenosis after CoA surgery，meanwhile meeting one of the following conditions:

• A：Pressure gradient of Carctation in a calm state. B：The degree of aortic stenosis is not less than 50% (degree of Carctation Of the Arota = (diameter of adjacent normal segment of blood vessel - residual vessel lumen diameter of stenotic segment)

⁃ diameter of adjacent normal segment of blood vessel×100% ) C：Peak velocity of echocardiographic Doppler in the CoA≥2.5m/s

• The patients and their families have high compliance, sign the informed consent and willing to undergo 1-year follow-ups and related examinations.

• The patient's expected lifespan is more than one year after successful treatment with the stent.

• Reference vessel (diameter of the adjacent normal segment vessel ) diameter：4-16mm