A stent system (118, 138, 148, 180, 180 ) comprising: a first stent (120, 150, 181, 18]) containing: a first stent (121, 151, 182): a first graft inner (122a. 152) held by the first stent (121, 151) a second inner graft (122b, 152) held by the primerstent (121.151) an opening (190, 190 ) or a gap between the first inner and second inner graft graft and an outer graft (123, 153) wherein: the opening (190, 190 ) or gap between the first inner graft (122a, 152) and the second inner graft (122b, 152) is positioned so that a portion of the first stent (121, 151) is not covered by the first inner graft (122a, 152) or the second inner graft (122b, 152) a first portion and a second portion of the outer graft (123, 153) are connected to the first stent (121.151) Outside graft (123, 153) is held by the first stent (121, 151) enters the first and second portions of the outer graft (123, 151) to form a fillable space between at least the outer graft (123 , 153) and the first (122a, 152) and second (22b, 152) internal slips the stent system also includes a second stent (125, 141, 155) deployable within the first stent (120, 151) to cover tightly the opening or the gap between the first inner graft (122a , 152) and the second inner graft (122b, 152) having the second stent (125, 141, 155) a second stent graft and a second and longer than the opening (190, 190 ) or hollow.Un sistema de endoprótesis (118, 138, 148, 180, 180) que comprende: una primera endoprótesis (120, 150, 181, 18 ]) que contiene: un primer stent (121, 151, 182): un primer injerto interior (122a. 152) sujeto por el primer stent (121, 151) un segundo injerto interior (122b, 152) sujeto por el primerstent (121,151) una abertura (190, 190) o un hueco entre el primer injerto interior y el segundo injerto interior y un injerto exterior (123, 153) donde: la abertura (190, 190) o el hueco entre el primer injerto interior (122a, 152) y el segundo injerto interior (122b, 152) está posicionado de forma que una porción del
