Apparatus for a stent having an expandable web structure and delivery system
First Claim
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1. A system for supporting a body lumen, the system comprising:
- a tubular body having a longitudinal axis, and having proximal and distal ends and a lumen extending longitudinally therebetween, and a wall having areas thereof that define a web structure configured for circumferential expansion from a contracted delivery configuration to an expanded deployed configuration;
the web structure comprising a plurality of web patterns interconnected with one another at a plurality of transition sections, and that are arranged so that the web patterns are situated side-by-side along the longitudinal length of the tubular body, with each web pattern also extending circumferentially around the wall;
at least one of said interconnected web patterns comprising,at least three webs joined end-to-end so as to extend between a pair of transition sections with no other transition sections between the pair of transition sections;
said three webs that are joined end-to-end being joined by two bends so that the bends permit the three webs to be generally foldable between the pair of transition sections when said tubular body is in the contracted delivery configuration, and then unfolded when said tubular body is expanded to the deployed configuration; and
said at least three webs each comprising a plurality of web sections, with one of the web sections being angled relative to one other web section when the stent is in the expanded deployed configuration; and
a catheter configured to accept the tubular body in the contracted delivery configuration, the catheter configured to deliver the tubular body intravascularly and to transition the tubular body from the contracted delivery configuration to the expanded deployed configuration.
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Abstract
The present invention provides a 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 transition sections. Each adjoining web comprises a central section interposed between two lateral sections to form concave or convex configurations. A delivery system for the stent is also provided.
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Citations
22 Claims
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1. A system for supporting a body lumen, the system comprising:
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a tubular body having a longitudinal axis, and having proximal and distal ends and a lumen extending longitudinally therebetween, and a wall having areas thereof that define a web structure configured for circumferential expansion from a contracted delivery configuration to an expanded deployed configuration; the web structure comprising a plurality of web patterns interconnected with one another at a plurality of transition sections, and that are arranged so that the web patterns are situated side-by-side along the longitudinal length of the tubular body, with each web pattern also extending circumferentially around the wall; at least one of said interconnected web patterns comprising, at least three webs joined end-to-end so as to extend between a pair of transition sections with no other transition sections between the pair of transition sections; said three webs that are joined end-to-end being joined by two bends so that the bends permit the three webs to be generally foldable between the pair of transition sections when said tubular body is in the contracted delivery configuration, and then unfolded when said tubular body is expanded to the deployed configuration; and said at least three webs each comprising a plurality of web sections, with one of the web sections being angled relative to one other web section when the stent is in the expanded deployed configuration; and a catheter configured to accept the tubular body in the contracted delivery configuration, the catheter configured to deliver the tubular body intravascularly and to transition the tubular body from the contracted delivery configuration to the expanded deployed configuration. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A system for supporting a body lumen, the system comprising:
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a tubular body having a longitudinal axis, and having proximal and distal ends and a lumen extending longitudinally therebetween, and a wall having areas thereof that define a web structure configured for circumferential expansion from a contracted delivery configuration to an expanded deployed configuration; the web structure comprising a plurality of web patterns interconnected with one another at a plurality of transition sections, and that are arranged so that the web patterns are situated side-by-side along the longitudinal length of the tubular body, with each web pattern also extending circumferentially around the wall; at least one of said interconnected web patterns comprising, at least three webs joined end-to-end so as to extend between a pair of transition sections with no intervening transition sections between the pair of transition sections; said three webs that are joined end-to-end being joined by two bends so that the bends permit the three webs to be generally foldable between the pair of transition sections when said tubular body is in the contracted delivery configuration, and then unfolded when said tubular body is expanded to the deployed configuration; each web comprising three web sections, with one of the web sections being a central section joined at opposite ends thereof to two lateral sections, each of the lateral sections being angled relative to the central section when the stent is in the expanded deployed configuration; and a catheter configured to accept the stent in the delivery configuration, the catheter configured to deliver the stent intravascularly and to transition the stent from the contracted delivery configuration to the expanded deployed configuration. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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Specification