Transdermal drug delivery device and method for its manufacture
First Claim
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1. A transdermal drug delivery device which comprises:
- a) a drug-storing matrix of flexible cellular structure fabricated from a flexible cellular thermoplastic resin workpiece;
b) at least one drug stored in the drug-storing matrix; and
,c) at least one drug delivery device-securing component adjacent the drug-storing matrix for securing the drug delivery device to a surface of unbroken skin, the drug delivery device-securing component possessing a flexible component of collapsed cellular structure resistant to penetration of drug from the drug-storing matrix and fabricated from the same thermoplastic resin workpiece as the drug-storing matrix, the drug delivery device-securing component together with the drug-storing matrix constituting a seamless unitary whole.
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Abstract
A transdermal drug delivery device possessing a drug-storing matrix and at least one drug delivery device-securing component is manufactured from the same flexible cellular thermoplastic resin workpiece.
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Citations
19 Claims
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1. A transdermal drug delivery device which comprises:
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a) a drug-storing matrix of flexible cellular structure fabricated from a flexible cellular thermoplastic resin workpiece; b) at least one drug stored in the drug-storing matrix; and
,c) at least one drug delivery device-securing component adjacent the drug-storing matrix for securing the drug delivery device to a surface of unbroken skin, the drug delivery device-securing component possessing a flexible component of collapsed cellular structure resistant to penetration of drug from the drug-storing matrix and fabricated from the same thermoplastic resin workpiece as the drug-storing matrix, the drug delivery device-securing component together with the drug-storing matrix constituting a seamless unitary whole. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method for manufacturing a transdermal drug delivery device possessing a drug-storing matrix having at least one drug stored therein and at least one drug delivery device-securing component, which comprises:
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a) designating a first region of a flexible cellular thermoplastic workpiece as a region in which the cellular structure of the workpiece is to be irreversibly collapsed and a second region of the workpiece as a region in which a drug-storing cellular structure is to be retained; b) irreversibly collapsing the cellular structure in the first region of the workpiece prior to or following storing at least one drug in the second region of the workpiece, the second region of drug-storing cellular structure providing the drug-storing matrix of the drug delivery device, the first region of collapsed cellular structure and the second region of drug-storing cellular structure constituting a seamless unitary whole; and
,c) providing the first region of collapsed cellular structure with means for securing the drug delivery device to a surface of unbroken skin, the first region of collapsed cellular structure and the means for securing the drug delivery device providing the drug delivery device-securing component of the drug delivery device. - View Dependent Claims (15, 16, 17, 18, 19)
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Specification