Apparatus and method for decreasing stent gap size
First Claim
1. An expandable intraluminal stent, comprising:
- a plurality of rings aligned along a common axis to form a tubular shape;
wherein each ring includes a plurality of cells, each cell being defined by at least two V struts of different amplitudes that are aligned in phase and nested within one another, wherein each of said V struts is defined by two arm segments converging at one end to define a first vertex that is otherwise unattached to any other stent structure and diverging at the opposite end such that each defines a second vertex with an arm segment of a V strut with which it is nested, and wherein each second vertex is attached to a second vertex of an adjacent cell by a link; and
a connecting element extending between a link between adjacent cells in one ring with a link between adjacent cells of an adjacent ring.
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Accused Products
Abstract
An expandable intraluminal stent having a strut pattern made from a plurality of triangular cells is disclosed. Each triangular cell is formed from at least two V struts of different magnitudes aligned in phase and joined at opposite ends forming two opposed vertices of the triangle. A series of triangular cells are joined at the vertices to form a ring. The series of triangular cells may be arranged to form peaks in the ring, peaks and valleys in the ring, or a combination thereof. A plurality of the rings are aligned coaxially and joined by connecting elements to form a tubular shape. Use of the double V strut formation in the rings increases vessel wall coverage, reduces gap sizes, and does not impair the compressability of the stent for a small profile for delivery.
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Citations
16 Claims
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1. An expandable intraluminal stent, comprising:
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a plurality of rings aligned along a common axis to form a tubular shape; wherein each ring includes a plurality of cells, each cell being defined by at least two V struts of different amplitudes that are aligned in phase and nested within one another, wherein each of said V struts is defined by two arm segments converging at one end to define a first vertex that is otherwise unattached to any other stent structure and diverging at the opposite end such that each defines a second vertex with an arm segment of a V strut with which it is nested, and wherein each second vertex is attached to a second vertex of an adjacent cell by a link; and a connecting element extending between a link between adjacent cells in one ring with a link between adjacent cells of an adjacent ring. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An expandable intraluminal stent, comprising:
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a plurality of rings aligned along a common axis to form a tubular shape; wherein each ring includes a plurality of cells; wherein each cell is formed from at least two nested V struts of differing amplitudes converging from common points to define peaks, wherein said common points of adjacent cells are linked by valleys, and wherein said peaks of each cell are free to shift relative to one another during expansion of said stent; and a connecting element extending between valleys of adjacent rings. - View Dependent Claims (11, 12, 13, 14, 15, 16)
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Specification