A coated medical device (10) including a structure (12) adapted for introduction into a passage or vessel of a patient. The structure is formed of preferably a non-porous base material (14) having a bioactive material layer (18) disposed thereon. The medical device is preferably an implantable stent
A coated medical device (10) including a structure (12) adapted for introduction into a passage or vessel of a patient. The structure is formed of preferably a non-porous base material (14) having a bioactive material layer (18) disposed thereon. The medical device is preferably an implantable stent or balloon (26) of which the bioactive material layer is deposited thereon. The stent can be positioned around the balloon and another layer of the bioactive material posited over the entire structure and extending beyond the ends of the positioned stent. The ends of the balloon extend beyond the ends of the stent and include the bioactive material thereon for delivering the bioactive material to the cells of a vessel wall coming in contact therewith. The balloon further includes a layer of hydrophilic material (58) positioned between the base and bioactive material layers of the balloon.
대표청구항▼
1. A coated medical device, comprising: a vascular stent comprised of a non-porous base material, said base material having a first surface that faces outwardly toward a wall of a vessel when the stent is implanted in the vessel, wherein said first surface has a first surface roughness;a coating adh
1. A coated medical device, comprising: a vascular stent comprised of a non-porous base material, said base material having a first surface that faces outwardly toward a wall of a vessel when the stent is implanted in the vessel, wherein said first surface has a first surface roughness;a coating adhered directly to said first surface of said base material, the coating have a first coating side adhered directly to said first surface and a second coating side opposite said first coating side and positioned to contact the wall of the vessel when in the stent is implanted in the vessel, with said second coating side having a second surface roughness that is greater than said first surface roughness, and said coating comprising paclitaxel; andsaid coating being the only coating on the vascular stent. 2. The coated medical device of claim 1, wherein said first surface has a mean surface roughness of about 10 μin and a surface roughness range between about 1 μin to about 100 μin. 3. The coated medical device of claim 1, wherein said coating comprises a mixture including paclitaxel in combination with an antiplatelet agent. 4. The coated medical device of claim 1, wherein said coating comprises a mixture including paclitaxel in combination with a vasodilation inducing agent. 5. The coated medical device of claim 1, wherein said coating comprises a mixture including paclitaxel in combination with a phosphodiesterase inhibiting agent. 6. The coated medical device of claim 1, wherein said coating consists essentially of paclitaxel. 7. The coated medical device of claim 1, wherein said coating consists of paclitaxel. 8. The coated medical device of claim 1, wherein said coating includes a coating material or layering material in combination with the paclitaxel. 9. The coated medical device of claim 1, wherein said first surface has been roughened by abrading or etching. 10. A coated medical device, comprising: a vascular stent comprised of a non-porous base material, said base material having a first surface that faces outwardly toward a wall of a vessel when the stent is implanted in the vessel, wherein said first surface has been roughened by abrading or etching to form a roughened surface, with said first surface having a first surface roughness;a coating adhered to said first surface of said base material, said coating having a first coating side adhered directly to said first surface and a second coating side opposite said first coating side and positioned to contact the wall of the vessel when in the stent is implanted in the vessel, with the second coating side having a second surface roughness that is greater than said first surface roughness, said coating comprising a mixture of bioactive agents, and the mixture comprising paclitaxel in combination with an antiplatelet agent, a vasodilation inducing agent, or a phosphodiesterase inhibiting agent; andsaid vascular stent being free from any layer atop said coating, free from any containment layer containing said mixture of bioactive agents, and free from any time release layer containing said mixture of bioactive agents. 11. The coated medical device of claim 10, wherein said first surface has a mean surface roughness of about 10 μin and a surface roughness range between about 1 μin to about 100 μin. 12. A coated medical device, comprising: a vascular stent for implantation in a vessel, the vascular stent comprised of a non-porous base material, said base material having a first surface that faces outwardly toward a wall of the vessel when the vascular stent is implanted, wherein said first surface has a first surface roughness, and a second surface facing oppositely to said first surface;a coating adhered to the first surface of the base material, said coating having a first coating side adhered directly to said first surface and a second coating side opposite the first coating side and positioned to contact the wall of the vessel when the stent is implanted in the vessel, with the second coating side having a surface roughness greater than said first surface roughness, and said coating comprising paclitaxel;said vascular stent being free from any layer atop said coating; andwherein said first surface has a mean surface roughness of about 10 μin and a surface roughness range between about 1 μin to about 100 μin. 13. The coated medical device of claim 12, wherein the vascular stent is comprised of metal, wherein said first surface is a metal surface, and wherein said first coating side is adhered directly to the metal surface. 14. The coated medical device of claim 12, wherein said coating includes a coating material or layering material in combination with the paclitaxel. 15. The coated medical device of claim 12, wherein said first surface has been roughened by abrading or etching. 16. A coated medical device, comprising: a vascular stent for implantation in a vessel, the vascular stent comprised of a non-porous base material, said base material having a first surface that faces outwardly toward a wall of the vessel when the vascular stent is implanted, wherein said first surface has a first surface roughness, and a second surface facing oppositely to said first surface;a coating adhered to the first surface of the base material, said coating having a first coating side adhered directly to said first surface and a second coating side opposite the first coating side and positioned to contact the wall of the vessel when the stent is implanted in the vessel, with the second coating side having a surface roughness greater than said first surface roughness, and said coating consisting essentially of paclitaxel; andsaid vascular stent being free from any layer atop said coating. 17. A coated medical device, comprising: a vascular stent for implantation in a vessel, the vascular stent comprised of a non-porous base material, said base material having a first surface that faces outwardly toward a wall of the vessel when the vascular stent is implanted, wherein said first surface has a first surface roughness, and a second surface facing oppositely to said first surface;a coating adhered to the first surface of the base material, said coating having a first coating side adhered directly to said first surface and a second coating side opposite the first coating side and positioned to contact the wall of the vessel when the stent is implanted in the vessel, with the second coating side having a surface roughness greater than said first surface roughness, and said coating consisting of paclitaxel; andsaid vascular stent being free from any layer atop said coating. 18. A coated medical device, comprising: a vascular stent for implantation in a vessel, the vascular stent comprised of a non-porous base material, said base material having a first surface that faces outwardly toward a wall of the vessel when the vascular stent is implanted, wherein said first surface has a first surface roughness, and a second surface facing oppositely to said first surface;a coating adhered to the first surface of the base material, said coating having a first coating side adhered directly to said first surface and a second coating side opposite the first coating side and positioned to contact the wall of the vessel when the stent is implanted in the vessel, with the second coating side having a surface roughness greater than said first surface roughness, and said coating comprising paclitaxel;said vascular stent being free from any layer atop said coating; andwherein said vascular stent is free from any containment layer containing the paclitaxel, and free from any time-release layer containing the paclitaxel.
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