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Vflower? venous stent system is intended for the treatment of non-thrombotic iliac vein lesions （NIVL）post-thrombotic syndrome(PTS) and deep vein thrombosis(DVT). In order to solve the clinical defects of braided stent, an integrated braided design combining dense and sparse cell is adopted to achieve both high radial force and excellent flexibility, from the perspective of structural design of stent and delivery system. The proximal dense woven cell can continue to support stenosis and occlusion lesions to ensure long-term patency, and the distal sparse cell has excellent flexibility and can comply with the physiological and anatomical structure of human vein. Achieve accurate position by post-release unit and avoid foreshortening by unique delivery system, that the outer sheath is withdrawn while the ejecting catheter is moved forward, cover the lesions accurately ensuring long-term patency. In addition, design with a reduced stent diameter provide physicians with more options.

● Dense woven cell with high radial force, sparse woven cell with excellent flexibility 

● Achieve accurate position by post-release unit and avoid foreshortening by unique delivery system, that the outer sheath is withdrawn while the ejecting catheter is moved forward cover the lesions accurately ensuring long-term patency

● Design with a reduced stent diameter provide physicians with more options