An endoluminal vascular prosthesis deployment system for deploying an endoluminal vascular prosthesis having at least a main branch , a first branch , and a second branch comprising: a flexible catheter body that comprises an outer sheath with a proximal and distal end, an inner core that extends through the outer sheath and is axially moveable with respect to the outer sheath , and a distal tip that is positioned adjacent the distal end of the outer sheath and is coupled to the inner core ; a main branch restraint that comprises a tubular member that is configured to constrain at least the main branch , the tubular member having a first portion adjacent a first end of the tubular member, a second portion adjacent a second end of the tubular member, and an intermediate portion positioned between the first and second portions; the tubular member comprising a plurality of perforations ; and a first branch restraint that comprises a tubular member configured to releasably constrain the first branch , the first branch restraint coupled to a first branch release mechanism, a second branch restraint configured to releasably constrain the second branch portion of the endoluminal vascular prosthesis , the second branch restraint comprising a second branch release mechanism; characterized in that the system further includes a release wire extending through the plurality of perforations and configured to tear portions of the tubular member between the perforations to deploy the main branch when the release wire is proximally retracted by releasing at least one of the proximal portion and the intermediate portion before the distal portion; and an inner core wire configured to remain positioned through the central lumen of the expanded main branch portion . a flexible catheter body that comprises an outer sheath with a proximal and distal end, an inner core that extends through the outer sheath and is axially moveable with respect to the outer sheath , and a distal tip that is positioned adjacent the distal end of the outer sheath and is coupled to the inner core ; a main branch restraint that comprises a tubular member that is configured to constrain at least the main branch , the tubular member having a first portion adjacent a first end of the tubular member, a second portion adjacent a second end of the tubular member, and an intermediate portion positioned between the first and second portions; the tubular member comprising a plurality of perforations ; and a first branch restraint that comprises a tubular member configured to releasably constrain the first branch , the first branch restraint coupled to a first branch release mechanism, a second branch restraint configured to releasably constrain the second branch portion of the endoluminal vascular prosthesis , the second branch restraint comprising a second branch release mechanism; characterized in that the system further includes a release wire extending through the plurality of perforations and configured to tear portions of the tubular member between the perforations to deploy the main branch when the release wire is proximally retracted by releasing at least one of the proximal portion and the intermediate portion before the distal portion; and an inner core wire configured to remain positioned through the central lumen of the expanded main branch portion . <EOS>