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
at least one link connecting adjacent cylindrical rings;
wherein at least one cylindrical ring includes an open W-pattern, the open W-pattern being connected to no more than one adjacent ring.
1 Assignment
0 Petitions
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. One embodiment is a stent in which one or both ends are more flexible than the center portion. Also, the stent may have a non-uniform drug coating. Another embodiment relates to a stent having ends that are more radiopaque than the center portion.
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Citations
56 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 at least one link connecting adjacent cylindrical rings; wherein at least one cylindrical ring includes an open W-pattern, the open W-pattern being connected to no more than one adjacent ring. - 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 flexible non-directional intravascular stent for use in a body lumen, comprising:
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a plurality of cylindrical rings aligned along a common longitudinal axis, the stent having a proximal end and a distal end, each cylindrical ring having a plurality of peaks and a plurality of valleys; at least one cylindrical ring having an open W-structure facing in a first direction and at least one cylindrical ring having an open W-structure facing in a second direction different from the first direction; at least one link attaching each cylindrical ring to an adjacent cylindrical ring, the link having a curved portion; wherein the proximal and distal ends of the stent are mirror images. - View Dependent Claims (23, 24, 25, 26, 27, 28)
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29. A non-directional stent for use in a body lumen, comprising:
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a plurality of cylindrical rings aligned along a common longitudinal axis and interconnected to form the stent; at least one link attaching each cylindrical ring to an adjacent cylindrical ring, the link having a curved portion extending substantially transverse to the stent longitudinal axis; wherein the curved transverse portion of at least one link facing in an opposite circumferential direction from the curved transverse portion of another link; wherein a proximal end of the stent is a mirror image of a distal end of the stent. - View Dependent Claims (30, 31, 32, 33)
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34. 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 at least one link connecting adjacent cylindrical rings; wherein the stent has a first end portion, a center portion, and a second end portion, with at least one of the end portions being more flexible than the center portion; and the stent has a drug coating, the drug coating having greater coverage on the center portion than on at least one of the end portions. - View Dependent Claims (35, 36, 37, 38, 39, 40)
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41. 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
at least one link connecting adjacent cylindrical rings;wherein the stent has a first end portion, a center portion, and a second end portion; and at least one of the end portions is more radiopaque than the center portion. - View Dependent Claims (42, 43, 44, 45, 46, 47, 48)
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49. 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 at least one link connecting adjacent cylindrical rings; wherein the stent has a first end portion, a center portion, and a second end portion; and at least one of the end portions is more flexible than the center portion. - View Dependent Claims (50, 51, 52, 53, 54, 55, 56)
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Specification