| 摘要 |
An implantable stent-graft ( 10 ) includes a radially distensible, tubular stent ( 20 ) having opposed open ends ( 12', 14' ) and a stent wall structure ( 16 ') having opposed exterior and luminal surfaces ( 30, 32 ); and a segmented, non-textile polymeric tubular structure ( 16 ) including a plurality of graft segments ( 18 ) circumferentially disposed about one of the stent surfaces ( 30, 32 ), the graft segments ( 18 ) including first portions ( 24 ) securably disposed to the one the stent surfaces ( 30, 32 ) and second portions ( 26 ) not securably disposed to the one the stent surfaces ( 30, 32 ); wherein adjacent graft segments ( 18 ) are disposed over one and the other to define overlaps ( 26 '), the overlaps ( 26 ') forming a fluid tight seal when implanted in a body lumen. |
