Pleated stent assembly
First Claim
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1. A pleated stent assembly comprising:
- a balloon; and
a tube having an original diameter, wherein at least a portion of said balloon is contained within said tube, wherein said tube and said balloon are co-pleated along longitudinal pleating lines to form a substantially cylindrical pleated tube/balloon assembly having a delivery width, and wherein said delivery width of said assembly is less than said original diameter of said tube.
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Abstract
The present invention is directed to a pleated medical device assembly, preferably a pleated stent assembly, comprising a tube co-pleated with a balloon to a delivery width suitable for intraluminal delivery. Because the tube of the present invention transitions between its original diameter and its delivery diameter by folding and unfolding, rather than by radial contraction and expansion, the wall of the tube of the present invention may be substantially non-expandable, and thus may be substantially solid. The pleated stent assembly of the present invention is particularly suited for the treatment of neurovascular aneurysms.
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Citations
31 Claims
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1. A pleated stent assembly comprising:
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a balloon; and
a tube having an original diameter, wherein at least a portion of said balloon is contained within said tube, wherein said tube and said balloon are co-pleated along longitudinal pleating lines to form a substantially cylindrical pleated tube/balloon assembly having a delivery width, and wherein said delivery width of said assembly is less than said original diameter of said tube. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. A medical or veterinary stent comprising:
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a tubular wall, wherein said wall comprises at least one annular body section and at least one annular anchor section, wherein said body section is substantially non-expandable radially, and wherein said anchor section is expandable radially. - View Dependent Claims (23, 24, 25, 26)
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27. A method for delivering a pleated stent assembly comprising:
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obtaining a pleated stent assembly comprising a stent longitudinally pleated onto and with a balloon;
inserting said pleated stent assembly into a vessel of a subject;
advancing said pleated stent assembly to a desired position within the vessel;
increasing the pressure within the balloon to simultaneously unfold the stent and balloon until the stent and balloon are fully unpleated;
decreasing the pressure within the balloon; and
removing the balloon from the stent and the vessel. - View Dependent Claims (28, 29, 30)
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31. A method for forming a pleated stent assembly comprising:
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inserting at least a portion of a balloon within a tube having an original diameter; and
co-pleating said balloon and said tube along longitudinal pleating lines to form a substantially cylindrical pleated tube/balloon assembly having a delivery width, wherein said delivery width of said assembly is less than said original diameter of said tube.
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Specification