Stent having variable properties and method of its use
First Claim
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1. A method of treating a carotid vessel comprising the steps of:
- a) providing a stent having a sidewall extending from a first end of the stent to a second end of the stent, the sidewall comprising a plurality of interconnected bands which define a plurality of fully bounded openings therein, each band having a first end defined by a plurality of turns and a second end defined by a plurality of turns, some of the fully bounded openings being larger than others of the fully bounded openings, b) delivering the stern to a desired region in the carotid vessel, and c) expanding the stent in the desired region in the carotid vessel.
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Abstract
A stent and method of its use, the stent in its expanded configuration, exhibiting varying outward radial force along its length. In use, the expanded stent is of a tapered configuration which provides greater force in vessel regions requiring greater force and less force in regions requiring less. In particular the stent is useful in the ostium regions and at areas of bifurcation in vessels. Varying force over the length of the stent is achieved by varying the number of elements, the density of elements, the thickness of the elements making up the stent body, and maintaining a substantially metal to artery ratio in the expanded stent over its length.
248 Citations
14 Claims
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1. A method of treating a carotid vessel comprising the steps of:
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a) providing a stent having a sidewall extending from a first end of the stent to a second end of the stent, the sidewall comprising a plurality of interconnected bands which define a plurality of fully bounded openings therein, each band having a first end defined by a plurality of turns and a second end defined by a plurality of turns, some of the fully bounded openings being larger than others of the fully bounded openings, b) delivering the stern to a desired region in the carotid vessel, and c) expanding the stent in the desired region in the carotid vessel. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method of treating a carotid vessel comprising the steps of;
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a) providing a stent having a sidewall extending from a first end of the stent to a second end of the stent the sidewall defined by a plurality of struts, the struts arranged in serpentine bands, each serpentine band having a first end and a second end, each strut connected at a distal end of the serpentine band to an adjacent strut and at a proximal end of the serpentine band to another adjacent strut, the stent including a plurality of openings in the sidewall which are bounded by four interconnected struts;
b) delivering the stent to a desired region in the carotid vessel; and
c) allowing the stent to expand in the desired region in the carotid vessel, the expanded stent having a tapered configuration.
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13. A method of treating a carotid vessel comprising the steps of:
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a) providing a stent having a sidewall extending from a first end of the stent to a second end of the stent, the sidewall defined by a plurality of struts, the struts arranged in serpentine bands, each serpentine segment having a first end and a second end, each strut extending from a first end of a serpentine segment to a second end of a serpentine segment, each strut connected at a first of the serpentine segment to an adjacent strut and at a second end of the serpentine segment to another adjacent strut, the stent including a plurality of openings in the sidewall which are bounded by four interconnected struts;
b) delivering the stent to a desired region in the carotid vessel; and
c) allowing the stent to expand in the desired region in the carotid vessel. - View Dependent Claims (14)
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Specification