A transdermal drug delivery device comprising a drug formulation-containing reservoir defined by a backing layer and a drug-permeable membrane layer, a peelable inner liner that underlies the reservoir and a portion of the backing/membrane outwardly of the reservoir periphery, an adhesive layer that...http://www.google.es/patents/US4983395?utm_source=gb-gplus-sharePatente US4983395 - Device for administering an active agent to the skin or mucosa
Device for administering an active agent to the skin or mucosa