Abuse resistant transdermal drug delivery patch
AssigneeHarrogate Holdings
InventorRobert B. Royds
Life of this patent
Estimating the term…
Abstract
A transdermal drug delivery patch has an excipient matrix containing an agonist for administration across the skin of a user, with the matrix further containing a plurality of spaced apart hollow cilia filled with an antagonist, whereby if an abuser attempts to physically remove the agonist the cilia will break releasing the antagonist, or if the abuser attempts to use a solvent to remove the agonist the cilia will dissolve releasing the antagonist, thereby blocking the effect the abuser is attempting to attain by concentrating the agonist for oral ingestion or by hypodermic needle injection.
Claims22
A transdermal drug delivery patch for the delivery of a drug across the skin of a user comprising:
- a main body providing an occlusive covering on the skin of a user, including:
- an outer face;
- an inner face in combination with said outer face forming a hollow cavity below said inner face;
- a hollow core being formed between said outer and inner faces;
- a plurality of parallel elongated cilia projecting from said inner face into said hollow cavity, said plurality of cilia being spaced apart and each having a diameter along their lengths ranging from 0.01 mm to 1.0 mm, and a hollow tubular core extending from the hollow core formed between said outer and inner faces;
- an excipient matrix filling portions of said cavity between said plurality of parallel elongated cilia;
- an agonist contained in said matrix between said plurality of elongated cilia, respectively;
- an antagonist being contained both within the hollow tubular core of each of said plurality of cilia, respectively, and within the hollow core between said outer and inner faces, respectively;
- said plurality of cilia being rigid, and having thinner walls than the walls of said outer face, whereby upon rupture or dissolvement of said plurality of cilia by an abuser, said cilia will release their associated antagonist to block the desired effect an abuser is attempting to obtain by concentrating said agonist to ingest it orally or through injection;
- and
- means for securing said main body to a desired location on the skin of a user.
Dependencies are inferred from the claim text.