A bovine pericardial conduit with a pulmonary porcine valve inserted at mid-segment of the conduit, with distal and proximal portions of graft fully opened. Blood flow direction is clearly indicated by external suture marks at mind-section, at the point where pulmonary valve is located. These features make Velum® the best solution for congenital diseases, palliative or definitive procedures. Indications: Velum® is indicated for Reconstruction of the Right Ventricular Outflow tract (RVOT) in patients less than 18 years of age. Can also be used in the following congenital pathologies: Pulmonary Stenosis Pulmonary Atresia Tetralogy of Fallot Truncus Arteriosus Transposition with Ventricular Septal Defect