Covered stent
First Claim
Patent Images
1. A covered stent comprising:
- a coiled sheet stent having a plurality of radially overlapping sections at least one of which includes an open cell geometry portion having a plurality of interior peaks, at least one of the interior peaks being disconnected from the other of the interior peaks, at least two of the interior peaks being connected to one another; and
a graft material covering at least a portion of the open cell geometry portion so that the graft material is between the radially overlapping sections to separate the at least one of the disconnected interior peaks from the radially overlapping sections.
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Accused Products
Abstract
A covered stent comprises a coiled sheet stent having at least a portion with open cell geometry and a graft material covering at least a portion of the coiled sheet stent.
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Citations
18 Claims
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1. A covered stent comprising:
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a coiled sheet stent having a plurality of radially overlapping sections at least one of which includes an open cell geometry portion having a plurality of interior peaks, at least one of the interior peaks being disconnected from the other of the interior peaks, at least two of the interior peaks being connected to one another; and a graft material covering at least a portion of the open cell geometry portion so that the graft material is between the radially overlapping sections to separate the at least one of the disconnected interior peaks from the radially overlapping sections. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A method for making a covered stent comprising:
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providing a sheet stent at least a section of which includes an open cell geometry portion having a plurality of interior peaks, at least one of the interior peaks being disconnected from the other of the interior peaks, at least two of the interior peaks being connected to one another; providing a graft material having a sleeve including an interior region and at least one edge which is open; inserting the sheet stent into the interior region of the sleeve; collapsing the sleeve upon the sheet stent to cover the open cell geometry portion; and coiling the sheet stent such that sections thereof radially overlap wherein at least one of the radially overlapping sections includes the open cell geometry portion; the coiling providing for the graft material to be located between the radially overlapping sections to separate the at least one of the disconnected interior peaks from the radially overlapping sections.
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18. A method for making a covered stent comprising:
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providing a sheet stent at least a section of which includes an open cell geometry portion having a plurality of interior peaks, at least one of the interior peaks being disconnected from the other of the interior peaks, at least two of the interior peaks being connected to one another, the sheet stent having opposite sides and an edge from which the sides extend; providing a graft material having a sheet structure; locating the sheet structure to face one or more of the edge and opposite sides of the sheet stent; folding the sheet structure around the sheet stent to cover the edge and opposite sides thereof wherein the open cell geometry portion is covered by the sheet structure; and coiling the sheet stent such that sections thereof radially overlap wherein at least one of the radially overlapping sections includes the open cell geometry portion, the coiling providing for the graft material to be located between the radially overlapping sections to separate the at least one of the disconnected interior peaks from the radially overlapping sections.
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Specification