Stent having increased scaffolding expandable bar arms
AssigneeAdvanced Cardiovascular Systems, Inc.
InventorsDaniel L. Cox, Andreina P. Gomez, Timothy A. Limon
Life of this patent
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Abstract
The invention is directed to a stent that is relatively flexible along its longitudinal axis but can be crimped or reduced to a very low profile while maintaining the ability to expand radially outwardly to any number of diameters to support a body lumen such as a coronary artery. The stent includes a plurality of cylindrical rings connected to each other by links. The cylindrical rings have curved portions that are attached by arms having slits that, when expanded, form apertures or holes to permit the stent to be reduced to a very low profile for delivery purposes, yet be able to expand the stent to various diameters and to provide sufficient vessel wall coverage when implanted.
Claims10
An intravascular stent for use in repairing a body lumen, comprising:
- a plurality of cylindrical rings, each ring having a proximal edge and a distal edge so as to define a width, at least some of the rings having curved sections positioned on one of said edges and attached to substantially straight arms extending between said edges, wherein said arms and curved sections define a non-linear pattern extending about a circumference of a ring and wherein the arms have an expandable slit formed therein and wherein said expandable slit is completely surrounded by said at least one arm;
- and
- a plurality of links connecting the cylindrical rings.
Dependencies are inferred from the claim text.