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US 7,611,531 B2Granted
Stent
AssigneeAbbott Laboratories Vascular Enterprises Limited
InventorJorge Calisse
Life of this patent
Estimating the term…
Abstract
A stent has a tubular flexible body with a wall formed of a web structure. The web structure has a plurality of neighboring web patterns which include webs arranged side by side. The web patterns are interconnected via at least one connection element. To prevent the connection element from moving out of the plane of the wall during expansion, the connection elements are each provided with connection webs arranged at an angle relative to one another and interconnected via hinges.
Claims14
A stent comprising:
- a web structure defining an essentially tubular body having a tubular wall with a longitudinal axis and a circumferential diameter, the web structure being expandable from a contracted configuration to an expanded configuration;
- a plurality of longitudinally adjacent circumferential web patterns defining the web structure;
- each web pattern being defined by a plurality of sequentially adjoined webs, the plurality of sequentially adjoined webs being disposed circumferentially around a longitudinal axis of the essentially tubular body;
- and
- at least one connection element extending between and connecting adjacent pairs of the web patterns configured to shorten and/or lengthen along the longitudinal axis within a curved plane defined by the tubular wall in the contracted configuration and/or the expanded configuration, the at least one connection element being formed by three connection webs, at least two being substantially non-parallel relative to one another and at least two being substantially parallel to one another, the three connection webs being disposed at an angle relative to one another, a rounded notch reducing a dimension of the connection element being formed at the junction of adjacent connection webs and at least one rounded notch disposed between a proximal end and distal end of the connection element.
2 more elements
Dependencies are inferred from the claim text.