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Details for Patent: 4,867,982

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Summary for Patent: 4,867,982

Title: Transdermal drug delivery device
Abstract:A medical device for the transdermal delivery of an active agent through sensitive intact skin is provided. The device comprises a matrix containing the drug having reinforcing means, preferably in the form of a fabric, embedded in the upper surface of the matrix. The matrix is formed of an agent permeable material which is tacky but does not adhesively bond to the skin. The device is sufficiently flexible and deformable that the combination of tackiness, flexibility, and deformation permits the device to be maintained in agent transmitting relationship upon skin at such sensitive areas as the scrotum, labia, breast, or penis, for example. In certain embodiments, the skin distal surface is provided with a layer of an agent impermeable material to reduce transfer of the agent from the patient to others.
Inventor(s): Campbell; Patricia S. (Palo Alto, CA), Eckenhoff; James B. (Los Altos, CA), Place; Virgil A. (Kawaihae, HI)
Assignee: ALZA Corporation (Palo Alto, CA)
Application Number:07/148,417
Patent Claim Types:
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Device; Use; Delivery;

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International Patent Family for Patent: 4,867,982

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Canada1257819► Subscribe
Germany3523065► Subscribe
Germany3687067► Subscribe
European Patent Office0232580► Subscribe
Spain296615► Subscribe
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The estimated expiration dates shown above are derived by simply adding 20 years to the priority date.
Due to the complexity of determining patent expirations even in a single country, compounded by the diversity of global patent laws, it is advisable to have patent counsel verify freedom to operate.

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