Deforming surface of drug eluting coating to alter drug release profile of a medical device
First Claim
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1. A method for altering a drug release profile of a coating on a medical device, comprising:
- providing a medical device with a drug eluting coating on the medical device;
providing a crimping apparatus adapted to indent the coating on the medical device; and
using the crimping apparatus to indent the coating on the medical device, thereby increasing the surface area of the coating of the medical device to obtain an altered drug release profile.
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Abstract
A method is provided for altering a drug release profile of a coating of a medical device by increasing a surface area of the coating of the medical device. The method may include indenting the coating using a crimping apparatus, a rolling apparatus, or a clamping device. The method may alternatively or additionally include changing a chemical composition of at least one coating component to increase a roughness of a texture of the coating, and/or drying or partially drying the coating before the coating impacts the medical device.
47 Citations
20 Claims
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1. A method for altering a drug release profile of a coating on a medical device, comprising:
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providing a medical device with a drug eluting coating on the medical device; providing a crimping apparatus adapted to indent the coating on the medical device; and using the crimping apparatus to indent the coating on the medical device, thereby increasing the surface area of the coating of the medical device to obtain an altered drug release profile. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method for improving a drug release profile of a coating of a medical device, comprising:
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determining an expected drug release profile of the coating of the medical device using first process parameters of a coating method; determining an increased surface area necessary to obtain an improved drug release profile; and altering the first process parameters to second process parameters of the coating method to achieve the increased surface area; wherein the altering of the first process parameters to the second process parameters comprises changing a chemical composition of at least one coating component to increase a roughness of a texture of the coating.
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8. A method for improving a drug release profile of a coating of a medical device, comprising:
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determining an expected drug release profile of the coating of the medical device using first process parameters of a coating method; determining an increased surface area necessary to obtain an improved drug release profile; and altering the first process parameters to second process parameters of the coating method to achieve the increased surface area; wherein the altering of the first process parameters to the second process parameters comprises one of drying and partially drying the coating before the coating strikes the medical device.
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9. A method for altering a drug release profile of a coating on a medical device, comprising:
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providing a medical device with a drug eluting coating on the medical device; providing a rolling apparatus adapted to indent the coating on the medical device by causing the medical device to roll against at least one indenting surface; and using the rolling apparatus to indent the coating on the medical device, thereby increasing the surface area of the coating of the medical device to obtain an altered drug release profile. - View Dependent Claims (10, 11, 12, 13, 14)
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15. A method for altering a drug release profile of a coating on a medical device, comprising:
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providing a medical device with a drug eluting coating on the medical device; providing a clamping device adapted to indent the coating on the medical device; and using the clamping device to indent the coating on the medical device, thereby increasing the surface area of the coating of the medical device to obtain an altered drug release profile. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification