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Details for Patent: 6,377,847

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Summary for Patent: 6,377,847

Title: Iontophoretic drug delivery device and reservoir and method of making same
Abstract:A reservoir electrode assembly of the present invention for an iontophoretic drug delivery device includes an electrode and a hydrophilic reservoir situated in electrically conductive relation to the electrode. The hydrophilic reservoir is formed from a bibulous hydrophilic cross-linked polymeric material having a first surface and a second surface that is adhesively adherent to the electrode. The first surface of the polymeric material is releasably adhesively adherent when applied to an area of a patient's skin. The polymeric material has a cohesive strength forms an adhesive bond with a bond strength between the second surface of the polymeric material to the electrode that is greater than the cohesive strength of the polymeric material. Additionally, an adhesive bond strength of the first surface of the polymeric material to the applied area of the patient is less than the cohesive strength of the polymeric material so that upon removal of the reservoir assembly of the invention from the applied area of the patient, substantially no polymeric material remains on the applied area and the hydrophilic reservoir remains substantially intact and adhesively adherent to the electrode.
Inventor(s): Keusch; Preston (Hazlet, NJ), Vilambi; NRK (Jamaica Estates, NY), Eliash; Bruce Michael (Franklin Lakes, NJ)
Assignee: Vyteris, Inc. (Fair Lawn, NJ)
Application Number:09/328,329
Patent Claim Types:
see list of patent claims
Delivery; Device; Formulation;
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Premature patent expiration for: 6,377,847

Expiration due to failure to pay maintenance fee

Patent Number Expiration Date
6,377,847 April 23, 2014

International Patent Family for Patent: 6,377,847

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Australia7845494<disabled in preview>
Canada2364414<disabled in preview>
European Patent Office1207936<disabled in preview>
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The estimated expiration dates shown above are derived by simply adding 20 years to the priority date.
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