A deployment system for vascular repair of a transected body vessel is provided. The system can include a prosthesis, an inner sheath, and an outer sheath. The inner sheath can be configured to selectively retain a first portion of the prosthesis in the compressed configuration, leaving a remaining portion of the prosthesis uncovered by the inner sheath. The outer sheath can be configured to retain the remaining portion of prosthesis in the compressed configuration and the first portion of the prosthesis within the inner sheath. The outer sheath is removable from the prosthesis to allow an expansion of the remaining portion of the prosthesis to the expanded configuration at a first opening in the transected vessel. The inner sheath is removable from the prosthesis first portion to allow an independent expansion of the first portion to the expanded configuration at a second opening in the transected vessel.