Cured oil-hydrogel biomaterial compositions for controlled drug delivery
First Claim
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1. A coating material coating a medical device, comprising:
- a biomaterial layer comprising a biomaterial, wherein the biomaterial comprises fatty acids cross-linked to each other; and
a fixating material layer comprising a fixating material, wherein the fixating material comprises material selected from the group consisting of sodium carboxymethylcellulose (Na—
CMC), poly(ethylene glycol), poly(ethylene oxide), poly(HEMA), poly(N-vinyl pyrrolidone), poly(acrylic acid), carboxymethyl cellulose (CMC), and chitosan, and wherein the fixating material layer is disposed on an outer surface of the biomaterial layer relative to the medical device, and the biomaterial protonates the fixating material so as to alter a drug eluting property of the fixating material;
wherein the fixating material layer comprises one or more therapeutic agents; and
wherein the coating material effects controlled delivery in a patient of the one or more therapeutic agents from the coating material based on at least the altered drug eluting property of the fixating material.
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Abstract
The present invention is generally directed to materials, gels, coatings and films prepared using a biomaterial (e.g., a fatty acid-based material comprising a network of cross-linked fatty acids) and a fixating material, layer or film (e.g., a fixating material comprising Na—CMC). The materials, gels, coatings and films disclosed herein can be used to facilitate the delivery of one or more therapeutic agents to a targeted tissue and a desired rate of release.
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Citations
23 Claims
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1. A coating material coating a medical device, comprising:
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a biomaterial layer comprising a biomaterial, wherein the biomaterial comprises fatty acids cross-linked to each other; and a fixating material layer comprising a fixating material, wherein the fixating material comprises material selected from the group consisting of sodium carboxymethylcellulose (Na—
CMC), poly(ethylene glycol), poly(ethylene oxide), poly(HEMA), poly(N-vinyl pyrrolidone), poly(acrylic acid), carboxymethyl cellulose (CMC), and chitosan, and wherein the fixating material layer is disposed on an outer surface of the biomaterial layer relative to the medical device, and the biomaterial protonates the fixating material so as to alter a drug eluting property of the fixating material;wherein the fixating material layer comprises one or more therapeutic agents; and wherein the coating material effects controlled delivery in a patient of the one or more therapeutic agents from the coating material based on at least the altered drug eluting property of the fixating material. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A film, comprising:
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a biomaterial, wherein the biomaterial comprises fatty acids cross-linked to each other; and a fixating material, wherein the fixating material is disposed as a layer on an outer surface of the biomaterial, and the biomaterial protonates the fixating material so as to alter a drug eluting property of the fixating material; wherein the fixating material comprises sodium carboxymethylcellulose and one or more therapeutic agents; and wherein the film is implantable in a patient to effect controlled delivery of the one or more therapeutic agents to the patient based on at least the altered drug eluting property of the fixating material. - View Dependent Claims (21)
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22. A film, comprising:
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a biomaterial, wherein the biomaterial comprises fatty acids cross-linked to each other; and a fixating material, wherein the fixating material is disposed as a layer on an outer surface of the biomaterial, and the biomaterial protonates the fixating material so as to alter a drug eluting property of the fixating material; wherein the fixating material is sodium carboxymethylcellulose; and one or more therapeutic agents carried by the biomaterial, or carried by the fixating material, or carried by both the biomaterial and the fixating material; wherein the film is implantable in a patient to effect controlled delivery of the one or more therapeutic agents to the patient based on at least the altered drug eluting property of the fixating material. - View Dependent Claims (23)
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Specification