Endograft with at least two branch portions

An endograft for placement in a vessel of a patient, comprising:

• a tubular main body portion having a proximal upstream end with a proximal opening, a distal downstream end with a distal opening, and a lumen extending therebetween;
• first and second fenestrations through a wall of the tubular main body portion that are in fluid communication with the lumen and are longitudinally offset from each other;
• a first branch having a first open end at the first fenestration and a second open end extending away from the first fenestration and a second branch having a first open end at the second fenestration and a second open end extending away from the second fenestration;
• wherein the first branch is helically curved around a partial circumference of the main body,
• wherein the second branch is straight relative to the first helical branch, and
• wherein the first and second branches are entirely longitudinally offset from one another and do not overlap, such that no portion of the first branch and the second branch lie in the same longitudinal portion of the main tubular body,
• wherein the first open ends of the first and second branches are spaced apart less than 100 degrees relative to one another around a 360 degree perimeter of the main body, and wherein the second open ends of the first and second branches are between about 110 and about 250 degrees apart relative to one another around the perimeter of the main body.

An endograft for placement in a vessel of a patient, comprising:

• a tubular main body portion having a proximal end with a proximal opening, a distal end with a distal opening, and a lumen extending therebetween;
• first and second fenestrations through a wall of the tubular main body portion that are in fluid communication with the lumen;
• a first branch extending from the first fenestration and a second branch extending from the second fenestration, each of the first and second branches having an open end extending away from its fenestration;
• wherein the first branch is helically curved along a partial circumference of the main body,
• wherein the first and second fenestrations are spaced apart less than 100 degrees relative to one another around a 360 degree perimeter of the main body,
• wherein the distal downstream regions of the first and second branches are between about 110 and about 250 degrees apart relative to one another around the perimeter of the main body, and
• wherein the first branch second end extends away from the first fenestration in a first direction and the second branch end extends away from the second fenestration in a second direction opposite the first direction such that the first and second branches are entirely longitudinally non-overlapping.