Stent having cover with drug delivery capability
First Claim
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1. A prosthesis, comprising:
- a cylindrical stent having an outer periphery; and
a cover provided about the outer periphery of the stent, the cover comprising at least two layers of materials, with at least one layer of material being permeable to drugs;
wherein the two layers of material are stitched to the stent.
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Abstract
A prosthesis has a cylindrical stent, and a cover provided about the outer periphery of the stent. The cover has at least two layers of materials, with at least one layer of material being permeable to drugs. The layers of material can define at least one chamber therebetween, with a drug loaded into the at least one chamber. Alternatively, the drug can be loaded into the material of one or more layers.
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Citations
39 Claims
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1. A prosthesis, comprising:
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a cylindrical stent having an outer periphery; and
a cover provided about the outer periphery of the stent, the cover comprising at least two layers of materials, with at least one layer of material being permeable to drugs;
wherein the two layers of material are stitched to the stent. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 21, 22, 23, 24)
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13. A prosthesis, comprising:
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a cylindrical stent having an outer periphery;
a cover provided about the outer periphery of the stent, the cover comprising at least two layers of materials, with at least one layer of material being permeable to drugs; and
wherein the at least two layers comprises three separate layers of material that define two separate chambers. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 25)
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26. A cover for use in surrounding an outer periphery of a stent, comprising at least two layers of materials, with at least one layer of material being permeable to drugs;
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wherein the at least two layers comprises three separate layers of material that define two separate chambers. - View Dependent Claims (27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38)
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39. A method of delivering drugs to the lumen of a body vessel, comprising:
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providing a prosthesis having a cylindrical stent having an outer periphery, and a cover provided about the outer periphery of the stent, the cover comprising at least two layers of materials, with at least one layer of material being permeable to drugs;
loading the cover with a releasable drug;
defining a first chamber in the cover and loading the drug in the first chamber;
defining a second chamber in the cover and loading a second drug into the second chamber;
delivering the prosthesis intraluminally to a desired location in a body vessel; and
releasing the drug from the cover.
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Specification