Stent graft for reinforcement of vascular abnormalities and associated method
First Claim
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1. A stent graft for treating a vascular abnormality in a lumen, the stent comprising:
- a flexible tubular structure comprising a proximal end and a distal end and having an expanded heat set configuration, wherein the tubular structure is configured to be constrained to a smaller diameter than the expanded heat set configuration, and wherein the tubular structure is heat set such that at least a portion of the proximal and/or distal ends is inverted against, and in direct contact with, itself when unconstrained.
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Abstract
A stent graft for reinforcement of a vascular abnormalities and an associated method are provided. According to one embodiment, the stent graft includes a flexible tubular structure comprising a proximal end and a distal end and having an expanded heat set configuration. The tubular structure is configured to be constrained to a smaller diameter than the expanded heat set configuration, and the tubular structure is heat set such that at least a portion of the proximal and/or distal ends is configured to fold over on itself when unconstrained.
74 Citations
31 Claims
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1. A stent graft for treating a vascular abnormality in a lumen, the stent comprising:
a flexible tubular structure comprising a proximal end and a distal end and having an expanded heat set configuration, wherein the tubular structure is configured to be constrained to a smaller diameter than the expanded heat set configuration, and wherein the tubular structure is heat set such that at least a portion of the proximal and/or distal ends is inverted against, and in direct contact with, itself when unconstrained. - 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 treating a vascular abnormality in a lumen, the method comprising:
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constraining a stent graft to a smaller diameter than an expanded heat set configuration; delivering the stent graft proximate to the vascular abnormality in the lumen; and deploying the stent graft such that at least a portion of the proximal and/or distal ends self expands from the constrained smaller diameter and returns to its expanded heat set configuration, inverts over against, and in direct contact with, itself, and engages the lumen. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26)
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27. A stent graft for treating a vascular abnormality in a lumen, the stent graft comprising:
a tubular structure comprising an occlusive material and having a proximal end and a distal end, wherein the tubular structure has an expanded heat set configuration and is configured to be elongated to a smaller diameter than the expanded heat set configuration whereby the tubular structure is unfolded prior to being deployed, and wherein the tubular structure is heat set such that at least a portion of the tubular structure is folded over against, and in direct contact with, itself when deployed. - View Dependent Claims (28, 29, 30)
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31. A stent graft for treating a vascular abnormality in a lumen, the stent comprising:
a flexible tubular structure having an expanded heat set configuration including one or more folded portions, wherein the tubular structure is configured to be constrained to a smaller diameter than the expanded heat set configuration whereby the tubular structure is unfolded prior to being deployed, and wherein the tubular structure is heat set such that at least a portion of the tubular structure is folded over against, and in direct contact with, itself when unconstrained.
Specification