Patent ID: 8523931

Claim:
A self-expandable endoluminal vascular prosthesis deployment system, comprising: an endoluminal vascular prosthesis having at least a main graft portion having a lumen therethrough and a first branch graft portion having a lumen therethrough; a deployment catheter having a catheter body for deploying the endoluminal vascular prosthesis, said deployment catheter having a central tubular core having a guidewire lumen extending therethrough, and distal and proximal ends, wherein said first branch graft portion is constrained within a branch graft restraint member comprising a tubular sheath prior to deployment; a contralateral guidewire extending through the first branch graft portion and the branch graft restraint member in a predeployment state; and an inner core member slidably positionable within said contralateral guidewire; wherein: said contralateral guidewire comprises a hollow guidewire securely connected to said branch graft restraint member such that movement of the hollow guidewire and branch graft restraint member connected thereto away from the main graft portion simultaneously moves the branch graft restraint member away from the main graft portion and releases said first branch graft portion from said branch graft restraint member; the hollow guidewire comprises a distal end portion that extends through the lumen of the first branch graft portion and substantially into the lumen of the main graft portion in a predeployment state; and the hollow guidewire has a substantially uniform cross-sectional size and shape along an entire the length thereof, and has a proximal end portion that is advanceable through a patient's vasculature.