EP0252732A2 — Transdermal drug delivery device
Assigned to Elan Transdermal Ltd · Expires 1988-01-13 · 38y expired
What this patent protects
A disposable electrode (3) for use in a transdermal device comprises a first surface adapted for contact with human skin and through which a drug substance contained in the electrode passes to the skin under the influence of an iontophoretic or electro-osmotic force and a second …
USPTO Abstract
A disposable electrode (3) for use in a transdermal device comprises a first surface adapted for contact with human skin and through which a drug substance contained in the electrode passes to the skin under the influence of an iontophoretic or electro-osmotic force and a second surface (4) which is electrically conducting, the electrode has a surface area in contact with the skin, in use, in the range 0.1 to 30 cm² and a drug dissolved or dispersed in a hydrophilic medium (5) at a concentration in the range 0.1 to 15% (w/v) based on the hydrophilic medium.
Drugs covered by this patent
Bibliographic data sourced from FDA Orange Book + USPTO public records. Plain-English summary generated by AI grounded in source text. Patent term extensions (PTR, SPC, pediatric) may shift the effective expiry. Not legal advice.
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