Expandable stents and method for making same
First Claim
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1. A longitudinally flexible stent for implanting in a body lumen, comprising:
- a plurality of cylindrical elements each having undulations, the cylindrical elements being expandable in the radial direction and interconnected to be generally aligned on a common longitudinal axis;
a plurality of interconnecting elements for interconnecting the cylindrical elements, the interconnecting elements configured to interconnect only the cylindrical elements that are adjacent to each other;
the undulations having peaks connected by a pair of sides; and
at least one interconnecting element between adjacent cylindrical elements, the at least one interconnecting element being attached along one of the sides of the undulations.
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Abstract
The invention is directed to an expandable stent for implantation in a body lumen, such as an artery, and a method for making it from a single length of tubing. The stent consists of a plurality of radially expandable cylindrical elements generally aligned on a common axis and interconnected by one or more interconnective elements. The individual radially expandable cylindrical elements consist of ribbon-like material disposed in an undulating pattern. Portions of the expanded stent project outwardly into engagement with the vessel wall to more securely attach the stent.
311 Citations
9 Claims
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1. A longitudinally flexible stent for implanting in a body lumen, comprising:
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a plurality of cylindrical elements each having undulations, the cylindrical elements being expandable in the radial direction and interconnected to be generally aligned on a common longitudinal axis;
a plurality of interconnecting elements for interconnecting the cylindrical elements, the interconnecting elements configured to interconnect only the cylindrical elements that are adjacent to each other;
the undulations having peaks connected by a pair of sides; and
at least one interconnecting element between adjacent cylindrical elements, the at least one interconnecting element being attached along one of the sides of the undulations. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification