Patent ID: 7306623
Filing Date: 2007-12-11
Classification: A61F

Abstract:
1. A graft system, comprising a tubular branch graft having a proximal end, a distal end and a lumen extending along a tubular branch graft axis longitudinally therethrough, said tubular branch graft comprising: a branch graft material; a first pocket material sewn to said branch graft material at a first pocket proximal pocket seam and a first pocket distal pocket seam to define a first circumferential graft pocket of said branch graft; and a second pocket material sewn to said branch graft material at a second pocket proximal pocket seam and a second pocket distal pocket seam to define a second circumferential graft pocket of said branch graft; a first self expanding support ring contained within said first circumferential graft pocket, said first circumferential graft pocket circumferentially encircling said branch graft at said proximal end; and a second self expanding support ring contained within said second circumferential graft pocket, said second circumferential graft pocket circumferentially encircling said branch graft at said proximal end; wherein said second circumferential graft pocket is disposed approximately parallel to and a pocket section separation length along said graft axis from said first circumferential graft pocket, wherein said second circumferential graft pocket is located closer to said distal end of said branch graft than said first circumferential graft pocket; a tubular main graft having main graft material with a side opening having a perimeter; wherein a pocket section separation portion of said branch graft material engages said perimeter of said side opening to form a seal between said main graft and said branch graft when said first self expanding support ring contained within said first circumferential graft pocket circumferentially encircling said branch graft at said proximal end is disposed inside said side opening of said main graft and said second self expanding support ring contained within said second circumferential graft pocket circumferentially encircling said branch graft at said proximal end is disposed outside said side opening of said main graft.