An expandable prosthesis comprising: an expandable main body device (40) maintained in a compressed state for endoluminal delivery, the expandable main body device (40) having a first open end (1), a second open end (2) , a wall that extends from the first open end (1) to the second open end (2), a lumen (3) that extends from the first open end (1) to the second open end (2) to receive a first guide wire ( 50) extending through the lumen (3) from the first open end (1) to the second open end (2), and at least one lateral opening (42) in the wall, where the main body device (40) it has an internal lateral branch support (44) which extends from the at least one lateral opening (42) towards the second open end (2) so that a second guide wire (54) is received in the internal lateral branch support (44) to extend through the ramif bracket Internal lateral location (44) between the at least one lateral opening (42), and the lumen (3) of the main body device to a point proximal to the second open end (2) while the expandable main body device (40) is maintained in the compressed state for endoluminal delivery, characterized in that the expandable prosthesis further comprises a sheath material (30) wrapped over the expandable prosthesis, and in that the sheath material (30) has at least one opening (60) there .Una prótesis expandible que comprende: un dispositivo de cuerpo principal expandible (40) mantenido en un estado comprimido para la entrega endoluminal, el dispositivo de cuerpo principal expandible (40) teniendo un primer extremo abierto (1), un segundo extremo abierto (2), una pared que se extiende del primer extremo abierto (1) al segundo extremo abierto (2), un lumen (3) que se extiende del primer extremo abierto (1) al segundo extremo abierto (2) para recibir un primer alambre guía (50) que se extiende a través del lumen (3) del primer extremo abierto (1) al segundo extremo abierto (2), y al menos una abertura lateral (42) en la pared, en donde el dispositivo de c
