Stent with drug coating
First Claim
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1. A stent comprising:
- a tubular body including a plurality of structural elements, sections of the structural elements lie on an imaginary cut plane perpendicular to a central axis of the tubular body, the sections together forming a perimeter; and
a coating on the body, the coating including a drug, the amount of the drug on the body varying along the perimeter.
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Abstract
Coatings for stents that include a polymer and a drug are provided. A method of forming the coatings is also provided.
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Citations
28 Claims
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1. A stent comprising:
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a tubular body including a plurality of structural elements, sections of the structural elements lie on an imaginary cut plane perpendicular to a central axis of the tubular body, the sections together forming a perimeter; and a coating on the body, the coating including a drug, the amount of the drug on the body varying along the perimeter. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A stent comprising:
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a network of structural elements forming a tube having sections on an imaginary cut plane perpendicular to a central axis of the tube, the sections together forming a circumference; and a drug carried on the structural elements, the amount of drug on a first half of the circumference being greater than the amount of the drug on a second half of the circumference due to a difference in surface area or surface roughness between the first half of the circumference and the second half of the circumference. - View Dependent Claims (13, 14, 15)
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16. A stent comprising:
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a tubular body having sections on an imaginary cut plane perpendicular to a central axis of the tubular body, the sections together forming a perimeter; and a coating carried by the tubular body, the coating including a drug at an amount that is greater on a first side of the perimeter than on a second side of the perimeter located opposite the first side. - View Dependent Claims (17, 18, 19)
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20. A stent comprising:
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a network of struts forming a tubular body, the struts intersecting an imaginary cut plane perpendicular to a central axis of the tubular body, the strut together forming a circumference; and a drug carried by the struts, the amount of the drug carried by each strut in a first segment of the circumference being greater than the amount of the drug carried by each strut in a second segment of the circumference. - View Dependent Claims (21, 22, 23)
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24. A stent comprising:
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a tubular body having sections on an imaginary cut plane perpendicular to a central axis of the tubular body, the sections together forming a circumference; and a drug carried by the body, the drug having a drug concentration that varies along the circumference due to a difference in surface area or surface roughness between a first portion of the body and a second portion of the body. - View Dependent Claims (25, 26, 27, 28)
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Specification