Intravascular stent
First Claim
Patent Images
1. A flexible intravascular stent for use in a body lumen, comprising:
- a plurality of cylindrical rings aligned along a common longitudinal axis; and
a plurality of links connecting adjacent cylindrical rings, two or more of the plurality of links being an undulating link, each undulating link having a curved portion extending transverse to the common longitudinal axis and an arm being straight and parallel to the common longitudinal axis;
wherein each cylindrical ring includes an open W-pattern, the open W-pattern being connected to no more than one adjacent ring, each of the cylindrical rings having a plurality of first peaks, second peaks, and third peaks, each of the first, second and third peaks having a height and an apex, the first peaks being taller than the second peaks, and the second peaks being taller than the third peaks along with a plurality of first valleys, second valleys, and third valleys, each of the first, second and third valleys having a depth and an apex, the first valleys being deeper than the second valleys, and the second valleys being deeper than the third valleys, each third peak of at least one of the cylindrical rings being connected to an adjacent cylindrical ring by one of the undulating links and the open W-pattern is formed between one of the first peaks and one of the second peaks.
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Accused Products
Abstract
An expandable stent for implanting in a body lumen, such as a coronary artery, peripheral artery, or other body lumen. In one aspect, the stent includes a butterfly pattern to which connecting links are attached. In another aspect, the stent embodies a non-directional structure.
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Citations
16 Claims
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1. A flexible intravascular stent for use in a body lumen, comprising:
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a plurality of cylindrical rings aligned along a common longitudinal axis; and a plurality of links connecting adjacent cylindrical rings, two or more of the plurality of links being an undulating link, each undulating link having a curved portion extending transverse to the common longitudinal axis and an arm being straight and parallel to the common longitudinal axis; wherein each cylindrical ring includes an open W-pattern, the open W-pattern being connected to no more than one adjacent ring, each of the cylindrical rings having a plurality of first peaks, second peaks, and third peaks, each of the first, second and third peaks having a height and an apex, the first peaks being taller than the second peaks, and the second peaks being taller than the third peaks along with a plurality of first valleys, second valleys, and third valleys, each of the first, second and third valleys having a depth and an apex, the first valleys being deeper than the second valleys, and the second valleys being deeper than the third valleys, each third peak of at least one of the cylindrical rings being connected to an adjacent cylindrical ring by one of the undulating links and the open W-pattern is formed between one of the first peaks and one of the second peaks. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A flexible intravascular stent for use in a body lumen, comprising:
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a plurality of cylindrical rings aligned along a common longitudinal axis; and a plurality of links connecting adjacent cylindrical rings; wherein each cylindrical ring includes an open W-pattern, the open W-pattern being connected to no more than one adjacent ring, each of the cylindrical rings having a plurality of first peaks, second peaks, and third peaks, each of the first, second and third peaks having a height and an apex, the first peaks being taller than the second peaks, and the second peaks being taller than the third peaks along with a plurality of first valleys, second valleys, and third valleys, each of the first, second and third valleys having a depth and an apex, the first valleys being deeper than the second valleys, and the second valleys being deeper than the third valleys, each third peak of at least one of the cylindrical rings being connected to an adjacent cylindrical ring by one of the links and the open W-pattern is formed between one of the first peaks and one of the second peaks and each cylindrical ring includes a plurality of a first strut, a second strut, and a third strut, the first struts being longer than the second struts, and the second struts being longer than the third struts and the open W-pattern is defined by a pair of third struts, one first strut and one second strut.
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14. A flexible intravascular stent for use in a body lumen, comprising:
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a plurality of cylindrical rings aligned along a common longitudinal axis; and a plurality of links connecting adjacent cylindrical rings; wherein each cylindrical ring includes an open W-pattern, the open W-pattern being connected to no more than one adjacent ring, each of the cylindrical rings having a plurality of first peaks, second peaks, and third peaks, each of the first, second and third peaks having a height and an apex, the first peaks being taller than the second peaks, and the second peaks being taller than the third peaks along with a plurality of first valleys, second valleys, and third valleys, each of the first, second and third valleys having a depth and an apex, the first valleys being deeper than the second valleys, and the second valleys being deeper than the third valleys, each third peak of at least one of the cylindrical rings being connected to an adjacent cylindrical ring by one of the links and the open W-pattern is formed between one of the first peaks and one of the second peaks and each cylindrical ring includes a plurality of a first strut, a second strut, and a third strut, the first struts being longer than the second struts, and the second struts being longer than the third struts and at least one of the second valleys includes one of the second struts connected with another of the second struts by one of the apexes.
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15. A flexible intravascular stent for use in a body lumen, comprising:
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a plurality of cylindrical rings aligned along a common longitudinal axis; and a plurality of links connecting adjacent cylindrical rings; wherein each cylindrical ring includes an open W-pattern, the open W-pattern being connected to no more than one adjacent ring, each of the cylindrical rings having a plurality of first peaks, second peaks, and third peaks, each of the first, second and third peaks having a height and an apex, the first peaks being taller than the second peaks, and the second peaks being taller than the third peaks along with a plurality of first valleys, second valleys, and third valleys, each of the first, second and third valleys having a depth and an apex, the first valleys being deeper than the second valleys, and the second valleys being deeper than the third valleys, each third peak of at least one of the cylindrical rings being connected to an adjacent cylindrical ring by one of the links and the open W-pattern is formed between one of the first peaks and one of the second peaks and each cylindrical ring includes a plurality of a first strut, a second strut, and a third strut, the first struts being longer than the second struts, and the second struts being longer than the third struts and at least one of the second struts is of dissimilar length than at least one other of the second struts.
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16. A flexible intravascular stent for use in a body lumen, comprising:
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a plurality of cylindrical rings aligned along a common longitudinal axis; and a plurality of links connecting adjacent cylindrical rings; wherein each cylindrical ring includes an open W-pattern, the open W-pattern being connected to no more than one adjacent ring, each of the cylindrical rings having a plurality of first peaks, second peaks, and third peaks, each of the first, second and third peaks having a height and an apex, the first peaks being taller than the second peaks, and the second peaks being taller than the third peaks along with a plurality of first valleys, second valleys, and third valleys, each of the first, second and third valleys having a depth and an apex, the first valleys being deeper than the second valleys, and the second valleys being deeper than the third valleys, each third peak of at least one of the cylindrical rings being connected to an adjacent cylindrical ring by one of the links and the open W-pattern is formed between one of the first peaks and one of the second peaks and each cylindrical ring includes a plurality of a first strut, a second strut, and a third strut, the first struts being longer than the second struts, and the second struts being longer than the third struts and each of the second peaks includes one of the second struts connected with another of the second struts at the apex which defines that second peak.
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Specification