Surgical bypass method
DCFirst Claim
1. A method for performing a bypass operation, comprising the steps of:
- providing a bypass graft comprising a tubular member having a sidewall provided with at least one fenestration including a plurality of fenestrations, the fenestrations each having a mid-longitudinal axis passing therethrough and a curved perimeter about the mid-longitudinal axis;
inserting said graft into a hollow organ an aorta of a patient;
positioning said graft in said organ so that the aorta to align at least a first and a second of said fenestration is aligned fenestrations with an internal organ junction junctions of the aorta with renal arteries of the patient, said first and second fenestrations each being aligned with one of the renal arteries, respectively; and
attaching said graft to said organ so that an upstream segment of the aorta to maintain the alignment of said fenestration remains aligned first and second fenestrations with said junction, thereby allowing communication the renal arteries and to allow blood flow between said hollow organ the aorta and an auxiliary organ the renal arteries through said junction said first and second fenestrations upon completion of said the bypass operation.
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Abstract
An endovascular bypass graft includes a tubular member, a first expandable mesh stent attached to one end of the tubular member, and a second expandable mesh stent attached to an opposite end of the tubular member. The second stent is provided with a plurality of fenestrations. The graft is inserted into a principal blood vessel such as the aorta and positioned in the vessel so that the fenestrations are aligned with junctions with ancillary blood vessels. The graft is attached to the principal blood vessel so that the fenestrations remain aligned with the respective junctions, thereby allowing blood flow between the principal vessel and the auxiliary vessels through the respective junctions upon completion of the bypass operation.
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Citations
37 Claims
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1. A method for performing a bypass operation, comprising the steps of:
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providing a bypass graft comprising a tubular member having a sidewall provided with at least one fenestration including a plurality of fenestrations, the fenestrations each having a mid-longitudinal axis passing therethrough and a curved perimeter about the mid-longitudinal axis; inserting said graft into a hollow organ an aorta of a patient; positioning said graft in said organ so that the aorta to align at least a first and a second of said fenestration is aligned fenestrations with an internal organ junction junctions of the aorta with renal arteries of the patient, said first and second fenestrations each being aligned with one of the renal arteries, respectively; and attaching said graft to said organ so that an upstream segment of the aorta to maintain the alignment of said fenestration remains aligned first and second fenestrations with said junction, thereby allowing communication the renal arteries and to allow blood flow between said hollow organ the aorta and an auxiliary organ the renal arteries through said junction said first and second fenestrations upon completion of said the bypass operation. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A method for performing a bypass operation, comprising the steps of:
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providing a bypass graft comprising a tubular member having sidewall including a plurality of fenestrations, the fenestrations each having a mid-longitudinal axis passing therethrough and a curved perimeter about the mid-longitudinal axis; inserting said graft into an aorta of a patient; positioning said graft in the aorta to align a first of said fenestrations with a junction of the aorta with a renal artery, said first fenestration being aligned with the renal artery, and to align a second of said fenestrations with a junction of the aorta with a superior mesenteric artery of the patient, said second fenestration being aligned with the superior mesenteric artery; and attaching said graft to an upstream segment of the aorta to maintain the alignment of said first and second fenestrations with the renal and the superior mesenteric arteries, respectively, and to allow blood flow between the aorta and the renal artery and between the aorta and the superior mesenteric artery through said first and second fenestrations upon completion of the bypass operation. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
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30. A method for performing a bypass operation, comprising the steps of:
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providing a bypass graft comprising a tubular member having a sidewall including a plurality of fenestrations, at least a first and a second of said fenestrations being separated from one another by a portion of the sidewall of said tubular member; inserting said graft into an aorta of a patient; positioning said graft in the aorta to align said first and second fenestrations with junctions of the aorta with renal arteries of the patient and to align a third of said fenestrations with a junction of the aorta with a superior mesenteric artery of the patient, said first and second fenestrations each being aligned with one of the renal arteries, respectively, said third fenestration being aligned with the superior mesenteric artery of the patient; and attaching said graft to an upstream segment of the aorta to maintain the alignment of said first and second fenestrations with the renal arteries and to allow blood flow between the aorta and the renal arteries through said first and second fenestrations upon completion of the bypass operation, and to maintain the alignment of said third fenestration with the junction of the aorta with the superior mesenteric artery to allow blood flow between the aorta and the superior mesenteric artery upon completion of the bypass operation. - View Dependent Claims (31, 32, 33, 34, 35, 36, 37)
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Specification