| 主权项 |
1. An endovascular delivery system, comprising:
a bifurcated and inflatable prosthesis comprising a main tubular body having an open end and opposed ipsilateral and contralateral legs defining a graft wall therein between, said graft wall having an inner graft wall surface and an outer graft wall surface, and said ipsilateral and contralateral legs having open ends; an elongate outer tubular sheath having an open lumen and opposed proximal and distal ends with a medial portion therein between, the proximal end of the outer tubular sheath securably disposed to a first handle at a handle assembly; an elongate inner tubular member having a tubular wall with an open lumen and opposed proximal and distal ends with a proximal portion near the proximal end, a distal portion near the distal end and a medial portion therein between, the inner tubular member having a longitudinal length greater than a longitudinal length of the outer tubular sheath, the inner tubular member being slidably disposed within the open lumen of the outer tubular sheath, the proximal end of the inner tubular member securably disposed to a second handle at the handle assembly; wherein the distal end of the outer tubular sheath being slidably disposed past and beyond the distal end of the inner tubular member to define a prosthesis delivery state and slidably retractable to the medial portion of the inner tubular member to define a prosthesis unsheathed state; a first elongate guidewire slidably disposed within the inner tubular member and extending from the handle assembly, through the ipsilateral leg of the prosthesis and through the main tubular body of the prosthesis in the prosthesis delivery state; a second elongate guidewire slidably disposed within the inner tubular member and having a proximal portion extending from the handle assembly or from a proximal portion of the inner tubular member, a medial portion extending through the ipsilateral leg of the prosthesis and a distal portion extending through at least a portion of the contralateral leg of the main tubular body of the prosthesis in the prosthesis delivery state; whereby the distal portion of the second elongate guidewire is engageable with a catheter to facilitate delivery of a contralateral graft extension within a portion of the contralateral leg of the main tubular body of the prosthesis in the prosthesis unsheathed state upon proximally retracting the second elongate guidewire. |
