Iontopheretic delivery device

Surgery – Means for introducing or removing material from body for... – Infrared – visible light – ultraviolet – x-ray or electrical...

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128802, A61N 130

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active

050840061

ABSTRACT:
An iontophoretic agent delivery device having donor and counter electrodes comprised of either metal or a hydrophobic polymer loaded with a conductive filler is provided. The agent reservoir in the donor electrode assembly contains about 10 to 60 wt % hydrophobic polymer, about 10 to 60 wt % hydrophilic polymer, and up to 50% agent. Similarly, the electrolyte reservoir contains about 10 to 60 wt % hydrophobic polymer, about 10 to 60 wt % hydrophilic polymer, and up to 50% electrolyte. The agent reservoir, the electrolyte reservoir and the electrodes are preferably in the form of films which are laminated to one another. The hydrophobic polymer component in the agent/electrolyte reservoir prevents the reservoir from delaminating from the metal/hydrophobic polymer based electrode, even after hydration of the reservoirs.

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