Abstract: An oval-shaped extra-venous support for venous valve repair, including a cylindrical channel mesh shell, the cross-section whereof is oval, which is a one-piece one (1), laterally open (g) and includes anchor means (101?, 101?, 101??; 103?; 103?, 103??) in correspondence with at least a cross-section thereof at both the opposite extremities of the major axis thereof. Such major axis is made longer than the intercommissural diameter of an incompetent native valve to be cured, so that it is capable of operating as a traction-acting device in cooperation with fastening means to stretch the intercommissural walls of the valve so as to extend the free edges (C1, C2) of the cusps thereof up to recover the capability thereof of coapting with each other.