Patent ID: 8357192

Claim:
An endoluminal vascular prosthesis deployment catheter for deploying an endoluminal vascular prosthesis having at least a main branch and a first branch, comprising: a flexible catheter body that supports the prosthesis in a pre-deployment state and 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 surrounds and constrains at least the main branch, the main branch restraint having a first end portion, a second end portion, and an intermediate portion positioned between the first and second end portions; a first branch restraint that comprises a tubular member configured to releasably constrain the first branch; and a withdrawal element that is coupled with the main branch restraint and the first branch restraint; wherein: the withdrawal element is coupled with the main branch restraint and the first branch restraint such that withdrawal of the withdrawal element withdraws the main branch restraint and the first branch restraint; the main branch restraint is coupled with the withdrawal element at a first position on the withdrawal element relative to a distal end of the withdrawal element; the first branch restraint is coupled with the withdrawal element at a second position on the withdrawal element relative to the distal end of the withdrawal element; and the first position is spaced apart along the length of the withdrawal element from the second position, the first position being further away from the distal end of the withdrawal element than the second position.