The purpose of this early feasibility study is to provide information on the BlueLeaf System for the formation of one or more autogenous vein valves constructed from the vein wall of the femoral and/or popliteal vein, in subjects with CVI and who meet the specified eligibility criteria. In particular, the safety and technical feasibility of the procedure will be validated in patients in the United States, including the procedural steps, operator technique, and subject characteristics. The study will assess the safety and effectiveness of the study device acutely and through 5 years.
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