DRUG-RELEASING STENT HAVING EXTENSION(S) FOR TREATING LONG LESIONS
First Claim
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1. A system for treating a lumen comprising:
- a first stent having a surface, a first end, a second end, and a coating composition comprising a first polymer and a first therapeutic agent disposed on the surface;
a first tubular extension attached to the second end of the first stent, wherein the first extension comprises a second polymer and a second therapeutic agent anda second stent having a surface, a first end and a second end, wherein the first end of the second stent forms an overlap with the first extension.
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Abstract
This invention generally relates to a system for treating body lumens, comprising stents, such as intravascular stents. More particularly, the invention is directed to stents having extensions attached on the ends thereof. The invention is also directed to methods for making and using such stents.
60 Citations
54 Claims
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1. A system for treating a lumen comprising:
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a first stent having a surface, a first end, a second end, and a coating composition comprising a first polymer and a first therapeutic agent disposed on the surface; a first tubular extension attached to the second end of the first stent, wherein the first extension comprises a second polymer and a second therapeutic agent and a second stent having a surface, a first end and a second end, wherein the first end of the second stent forms an overlap with the first extension. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32)
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33. A system for treating a blood vessel comprising:
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a first intravascular metal stent having a surface, a first end, a second end, and a coating composition comprising a first polymer and an agent for inhibiting the proliferation of smooth muscle cells disposed on the surface; and a first tubular extension attached to the second end of the first stent, wherein the first extension comprises a second polymer and the agent for inhibiting the proliferation of smooth muscle cells; and a second intravascular metal stent having a surface, the coating composition disposed on the surface of the second stent, a first end and a second end, wherein the first end of the second stent forms an overlap with less than the entire first extension.
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34. A system for treating a blood vessel comprising:
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a first intravascular metal stent having an abluminal surface, a first end, a second end, and a coating composition comprising a first biostable polymer and an anti-restenosis agent disposed on the abluminal surface; and a first tubular extension attached to the second end, wherein the first extension comprises a second biostable polymer and the anti-restenosis agent and a second intravascular metal stent having an abluminal surface, a first end and a second end, wherein the first end of the second stent forms an overlap with less than the entire first extension.
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35. A system for treating a bifurcated lumen comprising:
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a bifurcated stent comprising a surface, a first tubular portion, a second tubular portion, a third tubular portion having an end and a tubular extension attached to the end of the third tubular portion; and a non-bifurcated stent comprising a surface, a first end and a second end, wherein the first end of the non-bifurcated stent forms an overlap the extension. - View Dependent Claims (36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53)
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54. A system for treating a bifurcated blood vessel comprising:
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a bifurcated intravascular metal stent comprising a surface, a first tubular portion, a second tubular portion, a third tubular portion having an end and a tubular extension attached to the end of the third tubular portion;
wherein the extension comprises a first polymer anda non-bifurcated intravascular metal stent comprising a surface, a first end and a second end, wherein the first end of the non-bifurcated stent forms an overlap with less than the entire extension; and a graft comprising the first polymer disposed within the bifurcated stent.
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Specification