Transdermal or interdermal drug delivery devices
First Claim
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1. A drug delivery device for delivering a liquid drug to a subject via the subject'"'"'s skin, comprising:
- a housing;
a liquid reservoir in said housing for a liquid drug to be delivered;
and a drug delivery body of resilient deformable material carried by said housing and having one side communicating with one side of the liquid reservoir, and the opposite side exposed to engage the skin of the subject to receive the drug;
characterized in that said drug delivery body includes a plurality of stiff tubular elements extending through the body, each having an inlet end communicating with said liquid reservoir, and an outlet end at said opposite side of the drug delivery body to conduct the liquid drug directly to said opposite side.
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Abstract
A transdermal drug delivery device includes a liquid reservoir for a liquid drug to be delivered, and a drug delivery body which includes a plurality of tubular elements extending through the body, each having an inlet end communicating with the liquid reservoir, and an outlet end engageable with the subject'"'"'s skin to conduct the liquid drug directly to the subject'"'"'s skin.
437 Citations
21 Claims
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1. A drug delivery device for delivering a liquid drug to a subject via the subject'"'"'s skin, comprising:
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a housing; a liquid reservoir in said housing for a liquid drug to be delivered; and a drug delivery body of resilient deformable material carried by said housing and having one side communicating with one side of the liquid reservoir, and the opposite side exposed to engage the skin of the subject to receive the drug; characterized in that said drug delivery body includes a plurality of stiff tubular elements extending through the body, each having an inlet end communicating with said liquid reservoir, and an outlet end at said opposite side of the drug delivery body to conduct the liquid drug directly to said opposite side. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 15)
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14. A drug delivery device for delivering a liquid drug to a subject via the subject'"'"'s skin, comprising:
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a housing; a liquid reservoir in said housing for a liquid drug to be delivered; a drug delivery body carried by said housing and having one side communicating with one side of the liquid reservoir, and an opposite side exposed to engage the skin of the subject to receive the drug; a plurality of stiff tubular elements extending through the body, each having an inlet end communicating with said liquid reservoir, and an outlet and at said opposite side of the drug delivery body to conduct the liquid drug directly to said opposite side; a first electrode exposed for contact with the skin of a subject; a second electrode in contact with the liquid drug in said reservoir; and means for applying a voltage between said first and second electrodes.
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16. A transdermal drug delivery device for delivering a liquid drug to a subject via the subject'"'"'s skin, comprising:
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a housing attachable to the subject'"'"'s body; a liquid reservoir in said housing for a liquid drug to be delivered; a drug delivery body carried by said housing and having one side communicating with one side of the liquid reservoir and the opposite side exposed to engage the skin of the subject to receive the drug; a plurality of stiff tubular elements extending through said body, each having an inlet end communicating with said liquid reservoir and an outlet end engageable with the subject'"'"'s skin; and control means including a displaceable membrane for controlling the rate of delivery of the drug from said reservoir via said tubular elements to the subject'"'"'s skin at a rate controlled by the displacement of said membrane. - View Dependent Claims (17, 18, 19, 20, 21)
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Specification