Stent design for use in small vessels
An expandable stent design for use in small vessels, such as the distal regions of the coronary arteries, is disclosed. The stent consists of a plurality of radially expandable cylindrical elements generally aligned on a common longitudinal stent axis and interconnected by one or more interconnectin...
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Zusammenfassung: | An expandable stent design for use in small vessels, such as the distal regions of the coronary arteries, is disclosed. The stent consists of a plurality of radially expandable cylindrical elements generally aligned on a common longitudinal stent axis and interconnected by one or more interconnecting members placed so that the stent is flexible in a longitudinal direction. The strut width of the interconnecting members is narrower than the strut width of each cylindrical element thereby increasing the flexibility of the interconnecting members relative to the struts of the cylindrical elements. In one particular embodiment of the present invention, the strut width of the connecting segment between alternating peaks and valleys of the cylindrical element is designed to be wider than the width of the strut in the peak and valley portions of the cylindrical element to enhance the radiopacity of the stent. The stent pattern of the present invention is particularly well suited for use in small vessels having diameters of less than three millimeters, such as the distal vessels of the coronary arteries. |
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