The invention is to provide an electrode structure of an iontophoresis device
and a method of producing the same, excellent in an economical property, an operational
property, stability and safety. The electrode structure for the iontophoresis device
comprises a backing having a substrate film (1) having a molding portion,
an anode side and a cathode side electrode layers (14), (15) formed
passing the outer circumferential portion from the inner bottom of the molding
portion, and an insulating layer 3 formed in the outer circumferential portion
of the molding portion. The molding portion of the backing has a dent portion and
an anode side and a cathode side conductive layers (12), (13) are
separately installed therein. A cover member (8) is installed to seal between
these conductive layers (12), (13) and the insulating layer (3).
An adhesive sheet (10) for attachment to the skin is provided to the rear
face of the substrate film (1) and a liner (16) for the adhesive
sheet is provided on the cover member (8).
