Methods and apparatus for a drug-coated stent having an expandable web structure
First Claim
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1. A stent comprising:
- a tubular body having proximal and distal ends and a lumen extending therebetween, and a wall defining a web structure configured for expansion from a collapsed delivery configuration to an expanded deployed configuration, wherein the web structure comprises a plurality of neighboring web patterns of alternating concavity that extend circumferentially around the wall, each web pattern including a plurality of arcuate webs interconnected by bends, neighboring web patterns interconnected by connection elements, wherein at least two of the connection elements are separated, around the circumference of the wall, by at least three arcuate webs; and
a coating on the web structure that comprises a therapeutic agent.
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Abstract
The present invention provides a drug-coated stent comprising a tubular flexible body having a wall with a web structure that is expandable from a contracted delivery configuration to deployed configuration. The web structure comprises a plurality of neighboring web patterns, where each web patterns is composed of adjoining webs, and the web patterns are interconnected by connection elements. Each adjoining web comprises a central section interposed between two lateral sections to form concave or convex configurations.
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Citations
51 Claims
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1. A stent comprising:
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a tubular body having proximal and distal ends and a lumen extending therebetween, and a wall defining a web structure configured for expansion from a collapsed delivery configuration to an expanded deployed configuration, wherein the web structure comprises a plurality of neighboring web patterns of alternating concavity that extend circumferentially around the wall, each web pattern including a plurality of arcuate webs interconnected by bends, neighboring web patterns interconnected by connection elements, wherein at least two of the connection elements are separated, around the circumference of the wall, by at least three arcuate webs; and
a coating on the web structure that comprises a therapeutic agent. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A stent comprising:
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a tubular body having proximal and distal ends and a lumen extending therebetween, and a wall defining a web structure configured for expansion from a delivery configuration to a deployed configuration, wherein the web structure comprises a plurality of neighboring web patterns of alternating concavity that extend circumferentially around the wall, each web pattern including a plurality of arcuate webs interconnected by bends, at least some of the neighboring web patterns interconnected by connection elements separated, around the circumference of the wall, by at least two bends; and
a coating on the web structure that comprises a therapeutic agent. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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27. Apparatus for supporting a vessel comprising:
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a tube having proximal and distal ends and a lumen extending therebetween, the tube comprising a web structure having a collapsed state and an expanded state, wherein the web structure comprises a plurality of neighboring web patterns of alternating concavity, each web pattern including a plurality of arcuate webs, at least some of the neighboring web patterns interconnected by connection elements that define apertures having at least three intercommunicating S-shaped openings; and
a coating on the web structure that comprises a therapeutic agent. - View Dependent Claims (28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38)
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39. A stent comprising:
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a tube having a web structure configured to transition between a contracted state and an expanded state, wherein the web structure comprises a plurality of neighboring web patterns of alternating concavity, each web pattern including a plurality of arcuate webs interconnected by bends, neighboring web patterns interconnected by connection elements, the connection elements between any two neighboring web patterns being arranged around a circumference of the tube with a common orientation and offset by at least one intervening bend; and
a coating on the web structure that comprises a therapeutic agent. - View Dependent Claims (40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51)
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Specification