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US 7,887,577 B2Granted
Apparatus for a stent having an expandable web structure
AssigneeAbbott Laboratories Vascular Enterprises Limited
InventorsRandolf Von Oepen, Gerd Seibold
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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 connection elements. Each adjoining web comprises a central section interposed between two lateral sections to form concave or convex configurations.
Claims20
A stent 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.
4 more elements
A stent 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 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.
3 more elements
Dependencies are inferred from the claim text.