Coated stents
First Claim
Patent Images
1. A coated stent comprisinga. a stent having a plurality of struts;
- b. a coating having an active agent and a bioabsorbable polymer, wherein the active agent is a macrolide immunosuppressive drug in crystalline form, wherein the active agent remains in crystalline form after being included in the coating;
wherein said coating is substantially conformal to abluminal, luminal, and sidewall surfaces of the struts of the stent to form a plurality of coated struts and a ratio of an abluminal coating thickness to a luminal coating thickness is at most 90;
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Abstract
Provided herein is a coated coronary stent, comprising: a. stent; b. a plurality of layers deposited on said stent to form said coronary stent; wherein at least one of said layers comprises a bioabsorbable polymer and at least one of said layers comprises one or more active agents; wherein at least part of the active agent is in crystalline form.
543 Citations
20 Claims
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1. A coated stent comprising
a. a stent having a plurality of struts; -
b. a coating having an active agent and a bioabsorbable polymer, wherein the active agent is a macrolide immunosuppressive drug in crystalline form, wherein the active agent remains in crystalline form after being included in the coating; wherein said coating is substantially conformal to abluminal, luminal, and sidewall surfaces of the struts of the stent to form a plurality of coated struts and a ratio of an abluminal coating thickness to a luminal coating thickness is at most 90;
10. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A coated medical device comprising
a. a medical device having first, second, third and fourth surfaces; -
b. a coating having an active agent and a bioabsorbable polymer, wherein the active agent is a macrolide immunosuppressive drug in crystalline form, wherein the active agent remains in crystalline form after being included in the coating; wherein said coating is substantially conformal to the first, second, third and fourth surfaces and a ratio of a first surface coating thickness to a second surface coating thickness is at most 90;
10. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A method of coating a stent comprising
a. depositing at least one bioabsorbable polymer layer on a plurality of struts of the stent; -
b. depositing at least one a macrolide immunosuppressive drug layer on the plurality of struts of the stent, the drug being in crystalline form and remaining in crystalline form after being included in the coating; and c. repeating at least one of steps (a) and (b), wherein said coating is substantially conformal to abluminal, luminal, and sidewall surfaces of the struts of the stent to form a plurality of coated struts and a ratio of an abluminal coating thickness to a luminal coating thickness is at most 80;
20. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification