Coating comprising an adhesive polymeric material for a medical device and method of preparing the same
OwnerKalpana Kamath, Hatal Patelinventors
Life of this patent
Estimating the term…
Abstract
This invention is directed to a coating for a medical device in which the coating comprises an adhesive polymeric material, having a certain degree of surface tack, disposed on at least a portion of the medical device surface. The coating also comprises an outermost coating layer comprising a biologically active material in particulate form disposed on and adhering to at least a portion of the first coating layer. The coating is capable of delivering a biologically active material to a patient. The invention is also directed to a method for manufacturing such a coated medical device.
Claims37
A medical device comprising a surface and a coating disposed on at least a portion of the surface;
- wherein the coating comprises
- (a) a first layer comprising an adhesive polymeric material having a surface tack of about 1 to about 25 grams;
- and
- (b) an outermost layer adhering to at least a part of the first layer, wherein the outermost layer comprises a first biologically active material in particulate form and wherein the outermost layer is substantially free of any polymeric material.
A stent comprising a surface and a coating disposed on at least a portion of the surface;
- wherein the coating comprises
- (a) a first layer comprising an adhesive polymeric material having a surface tack of about 1 to about 25 grams when measured by a texture analyzer when the compressive force is about 40 grams, the compressive force time is about 5 seconds, the test speed is about 0.25 mm/s and the pulling distance is about 2 mm;
- and
- (b) an outermost layer adhering to the first layer, wherein the outermost layer comprises a first biologically active material in particulate form and wherein the outermost layer is substantially free of any polymeric material.
A method for coating a medical device having surface comprising:
- (a) forming a first coating layer comprising an adhesive polymeric material having a surface tack of about 1 to about 25 grams on a portion of the surface;
- and
- (b) adhering an outermost coating layer comprising a biologically active material in particulate form on at least part of the first coating layer, wherein the outermost layer is substantially free of any polymeric material.
Dependencies are inferred from the claim text.