Abstract: A set (FIG. 1&2) designed to provide a durable access to the portal vein and to divert portal blood to the systemic circulation in order to relieve congested portal system. The set is composed of a duct (1) and a shunt tube (7). The duct is composed of a covered flexible tubular braid with two opened ends. One end has flaring edges and forms the inner opening (2) while the other end is sealed to form a hub (3). To insert the duct into the intrahepatic portal vein through the percutaneous route the duct is mounted over a puncture needle (13) and contained in a small-constrained diameter by means of a peel-away sheath (16). After the position of the inner opening of the duct has been adjusted to the desired location the said sheath is peeled away to allow the duct to expand. The shunt tube (7) is composed of a long flexible vascular graft (8) equipped at its upper end with a head (9) while its lower end is free to be sutured with the femoral vein (21).