Intraluminal vascular prosthesis (10, 60； 70) for implantation in a blood vessel, with rings (12) arranged one behind the other in its longitudinal direction from peripheral supports (13) in the form of a meander and a prosthetic material (14 ), fixed to the rings (12) and joining them, with a fabric structure, which forms a hollow cylindrical base body (15) with circumferentially closed lining, the tissue structure of the prosthetic material (14) being formed from interwoven threads with a mesh density, being provided between two rings (12) arranged one behind the other of the vascular prosthesis (10； 60； 70) in the prosthetic material (14) at least one area of fenestration (16 ) for the configuration of at least one opening (22) for lateral branches (20； 61, 62, 63) leaving the hollow cylindrical base body (15), said fenestration area (16) having a tissue structure different from the material prosthetic (14) remaining, presenting the tissue structure, in the area of fenestration (16), a lower mesh density than in the remaining prosthetic material (14), as well as reinforcing elements (18) as a grid, characterized in that the elements of reinforcement as a grid are made of textile threads (18) interwoven in the area of fenestration (16) or applied adhesives and are only provided in the area of fenestration (16).Prótesis vascular intraluminal (10, 60； 70) para la implantación en un vaso sanguíneo, con anillos (12) dispuestos uno detrás de otro en su dirección longitudinal a partir de apoyos (13) periféricos en forma de meandro y un material protésico (14), fijado a los anillos (12) y que los une, con una estructura de tejido, que forma un cuerpo base (15) cilíndrico hueco con revestimiento circunferencialmente cerrado, estando formada la estructura de tejido del material protésico (14) a partir de hilos entretejidos entre sí y presentando una densidad de malla, estando previsto entre dos anillos (12) dispuestos uno detrás de otro de la prótesis vascular (10； 60； 70)
