A device, comprising: a stent graft extending from a proximal end region to a distal end region and having an intermediate region positioned intermediate said proximal end region and said distal end region; said stent graft configurable from a contracted configuration to an expanded configuration; said stent graft defining a central lumen extending from the proximal end region to the distal end region in said expanded configuration and having a graft material portion in said intermediate region; said graft material portion having an inward-facing side that faces towards said central lumen and an outward-facing side that faces away from said central lumen; said proximal end region and said distal end region each having an average outer dimension when said stent graft is in said expanded configuration; said average outer dimensions, in said expanded configuration, of said proximal end region and said distal end region each being greater than an average outer dimension defined by said graft material of said intermediate region in said expanded configuration; and a first infusion/aspiration port in fluid communication with a first infusion/aspiration lumen; said first infusion/aspiration port opening on said outward-facing side of said graft material, and said first infusion/aspiration lumen extending proximally from said first infusion/aspiration port along said proximal end region of said stent graft, and extending along an outward-facing side of a graft material of said stent graft in said proximal end region. a stent graft extending from a proximal end region to a distal end region and having an intermediate region positioned intermediate said proximal end region and said distal end region; said stent graft configurable from a contracted configuration to an expanded configuration; said stent graft defining a central lumen extending from the proximal end region to the distal end region in said expanded configuration and having a graft material portion in said intermediate region; said graft material portion having an inward-facing side that faces towards said central lumen and an outward-facing side that faces away from said central lumen; said proximal end region and said distal end region each having an average outer dimension when said stent graft is in said expanded configuration; said average outer dimensions, in said expanded configuration, of said proximal end region and said distal end region each being greater than an average outer dimension defined by said graft material of said intermediate region in said expanded configuration; and said stent graft configurable from a contracted configuration to an expanded configuration; said stent graft defining a central lumen extending from the proximal end region to the distal end region in said expanded configuration and having a graft material portion in said intermediate region; said graft material portion having an inward-facing side that faces towards said central lumen and an outward-facing side that faces away from said central lumen; said proximal end region and said distal end region each having an average outer dimension when said stent graft is in said expanded configuration; said average outer dimensions, in said expanded configuration, of said proximal end region and said distal end region each being greater than an average outer dimension defined by said graft material of said intermediate region in said expanded configuration; and a first infusion/aspiration port in fluid communication with a first infusion/aspiration lumen; said first infusion/aspiration port opening on said outward-facing side of said graft material, and said first infusion/aspiration lumen extending proximally from said first infusion/aspiration port along said proximal end region of said stent graft, and extending along an outward-facing side of a graft material of said stent graft in said proximal end region.