Cross-linked fatty acid-based biomaterials
First Claim
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1. A coating for a medical device, comprising:
- fatty acids cross-linked to each other by one or more of ester bonds or lactone bonds, and a therapeutic agent, wherein the fatty acids are partially cross-linked to each other by one or more of ester bonds or lactone bonds before association with the therapeutic agent, and wherein the coating hydrolyzes in vivo.
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Abstract
Fatty acid-based, pre-cure-derived biomaterials, methods of making the biomaterials, and methods of using them as drug delivery carriers are described. The fatty acid-derived biomaterials can be utilized alone or in combination with a medical device for the release and local delivery of one or more therapeutic agents. Methods of forming and tailoring the properties of said biomaterials and methods of using said biomaterials for treating injury in a mammal are also provided.
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Citations
88 Claims
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1. A coating for a medical device, comprising:
- fatty acids cross-linked to each other by one or more of ester bonds or lactone bonds, and a therapeutic agent, wherein the fatty acids are partially cross-linked to each other by one or more of ester bonds or lactone bonds before association with the therapeutic agent, and wherein the coating hydrolyzes in vivo.
- View Dependent Claims (2, 3, 5, 6, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 88)
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4. A fatty-acid based, pre-cure-derived coating for a medical device, comprising:
- one or more therapeutic agents and fatty acids cross-linked to each other by one or more of ester bonds or lactone bonds, wherein the fatty acids are partially cross-linked to each other by one or more of ester bonds or lactone bonds before association with the therapeutic agent, wherein the fatty acids comprise approximately 5-50% C16 fatty acids, and wherein the coating hydrolyzes in vivo.
- View Dependent Claims (19)
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7. A fatty-acid based, pre-cure-derived coating for a medical device comprising a therapeutic agent and fatty acids cross-linked to each other by one or more of ester bonds or lactone bonds, wherein the fatty acids comprise approximately 5-25% C14 fatty acids and 5-50% C16 fatty acids, and wherein the coating hydrolyzes in vivo.
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8. A fatty-acid based, pre-cure-derived coating for a medical device comprising fatty acids and glycerides, wherein the fatty acids are cross-linked to each other by one or more of ester bonds or lactone bonds, wherein the fatty acids and glycerides have disordered alkyl groups, which cause the coating to be flexible and hydratable, and wherein the coating hydrolyzes in vivo into one or more of free fatty acids, glycerols, or glycerides.
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9. A fatty-acid based, pre-cure-derived coating for a medical device comprising a fatty acid-derived biomaterial, wherein the fatty acid-derived biomaterial comprises fatty acids and glycerides, wherein the fatty acids are cross-linked to each other by one or more of ester bonds or lactone bonds, and wherein the coating hydrolyzes in vivo into one or more of free fatty acids, glycerols, or glycerides.
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10. A fatty-acid based, pre-cure-derived coating for a medical device, wherein the coating comprises fatty acids and glycerides, wherein the fatty acids are cross-linked to each other by one or more of lactone bonds or ester bonds, as indicated by an infrared absorption spectrum having a peak from approximately 1740-1850cm−
- 1, and wherein the coating hydrolyzes in vivo into one or more of free fatty acids, glycerols, or glycerides.
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11. A fatty-acid based, pre-cure-derived coating for a medical device, comprising a cross-linked, fatty acid-derived biomaterial, wherein approximately 60-90% of the biomaterial is constituted by fatty acids with molecular weights below 500, wherein the coating comprises fatty acids cross-linked to each other by one or more of ester bonds or lactone bonds, and wherein the coating hydrolyzes in vivo into one or more of free fatty acids, glycerols, or glycerides.
- 12. A fatty-acid based, pre-cure-derived biomaterial suitable for achieving modulated healing in a tissue region in need thereof, wherein the biomaterial is administered in an amount sufficient to achieve the modulated healing, wherein the modulated healing comprises a modulation of platelet or fibrin deposition in or near the tissue region, wherein the biomaterial comprises one or more fatty acids cross-linked to each other by one or more of ester bonds or lactone bonds, and wherein the biomaterial hydrolyzes in vivo into one or more of free fatty acids, glycerols, or glycerides.
- 14. A fatty-acid based, pre-cure-derived biomaterial suitable for achieving modulated healing at a site of vascular injury in need thereof, wherein the biomaterial is formed from one or more of eicosapentaenoic acid (EPA), docosahexanoic acid (DHA) or alpha-linolenic acid (ALA), wherein the biomaterial comprises fatty acids cross-linked to each other by one or more of ester bonds or lactone bonds, wherein the biomaterial is administered in an amount sufficient to achieve the modulated healing, wherein the modulated healing comprises a modulation of at least one metric of organized tissue repair and wherein the biomaterial hydrolyzes in vivo into one or more of fatty acids, glycerols, or glycerides.
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46. A preparation for deriving a coating for a medical device, the preparation comprising:
- fatty acids cross-linked to each other by one or more of ester bonds or lactone bonds, wherein the coating hydrolyzes in vivo into one or more of free fatty acids, glycerides, or glycerols, and wherein a portion of the preparation comprises a pre-cured natural oil.
- View Dependent Claims (47, 48, 49)
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50. A method for producing a fatty-acid based, pre-cure-derived coating for a medical device, wherein the method comprises:
- curing an oil-containing starting material according to a first curing condition to form a second material comprising partially cross-linked fatty acids and glycerides, wherein the fatty acids and glycerides are cross-linked to each other by one or more of ester bonds or lactone bonds;
combining a therapeutic agent with the second material to form a third material; and
curing the third material such that a coating is produced;
wherein the coating hydrolyzes in vivo into one or more of free fatty acids, glycerides, or glycerols. - View Dependent Claims (51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67)
- curing an oil-containing starting material according to a first curing condition to form a second material comprising partially cross-linked fatty acids and glycerides, wherein the fatty acids and glycerides are cross-linked to each other by one or more of ester bonds or lactone bonds;
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68. A fatty-acid based, pre-cure-derived coating for a medical device, the coating comprising:
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a hydrophobic, non-polymeric cross-linked fish oil comprising fatty acids cross-linked to each other by one or more of ester bonds or lactone bonds; and a therapeutic agent; wherein the coating can coating can withstand 16-22 psi of compressive force; and wherein the coating hydrolyzes in vivo. - View Dependent Claims (69)
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70. A fatty-acid based, pre-cure-derived coating for a medical device, comprising:
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fatty acids cross-linked to each other by one or more of ester bonds or lactone bonds; and a therapeutic agent; wherein the therapeutic agent is contained within the coating in such a way that the therapeutic agent has an enhanced release profile; and wherein the coating hydrolyzes in vivo into one or more of free fatty acids, glycerides, or glycerols.
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71. A preparation for deriving a coating for a medical device, the preparation comprising:
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fatty acids cross-linked to each other by one or more of ester bonds or lactone bonds; and a therapeutic agent; wherein the coating hydrolyzes in vivo into one or more of free fatty acids, glycerides, or glycerols.
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72. A fatty-acid based, pre-cure-derived coating for a medical device, comprising:
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fatty acids cross-linked to each other by one or more of ester bonds or lactone bonds; and a therapeutic agent; wherein the coating is prepared by; curing a natural oil-containing starting material to induce cross-linking of a portion of the fatty acids contained therein; adding a therapeutic agent to the partially-cross linked fatty acid oil to form a therapeutic agent-oil composition; and curing the therapeutic agent-oil composition to induce additional cross links of the fatty acids contained therein, such that the coating is formed; wherein the coating hydrolyzes in vivo into one or more of free fatty acids, glycerides, or glycerols. - View Dependent Claims (73, 74)
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75. A stand-alone film comprising a pre-cured fatty acid;
- wherein the pre-cured fatty acid comprises fatty acids cross-linked to each other by one or more of ester bonds or lactone bonds; and
wherein the stand-alone film hydrolyzes in vivo. - View Dependent Claims (76, 77, 78, 79, 80, 81, 82, 83, 84)
- wherein the pre-cured fatty acid comprises fatty acids cross-linked to each other by one or more of ester bonds or lactone bonds; and
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85. A stand-alone film, comprising:
- a cross-linked fatty acid oil, and a therapeutic agent;
wherein the stand-alone film is prepared by curing a natural oil-containing starting material to induce cross-linking of a portion of the fatty acids to each other by one or more of ester bonds or lactone bonds;
adding a therapeutic agent to the partially-cross linked fatty acid oil to form a therapeutic agent-oil composition; and
curing the therapeutic agent-oil composition to induce additional cross links in the fatty acids, such that the stand-alone film is formed;
wherein the stand-alone film hydrolyzes in vivo.
- a cross-linked fatty acid oil, and a therapeutic agent;
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86. A fatty-acid based, pre-cure-derived biomaterial comprising:
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fatty acids cross-linked to each other by one or more of ester bonds or lactone bonds; and a therapeutic agent; wherein the biomaterial comprises at least 40%, by weight, of the therapeutic agent; and wherein the coating hydrolyzes in vivo into one or more of free fatty acids, glycerides, or glycerols. - View Dependent Claims (87)
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Specification