Iontophoresis electrode with reservoir and injection site

Details Iontophoresis electrode with reservoir and injection site Iontophoresis electrode with reservoir and injection site

A - Human Necessities

61

N

A61N 1/30 (2006.01)

Patent

CA 2044287

ABSTRACT OF THE DISCLOSURE An iontophoresis electrode (10) configured for positioning on a patient's skin during a drug treatment. The electrode includes a flexible backing layer having a first surface with an adhesive layer (12) for holding the electrode (10) together and for securing the electrode (10) to the skin. A conductive material layer (14) adheres to the adhesive layer (12). An absorbent pad layer (16), positioned adjacent the conductive material layer (14), holds a drug solution during the treatment. A dispersive material layer (48) overlies the absorbent pad layer (16) to disperse the solution evenly about a skin-electrode interface. The dispersive material layer (18) and the flexible backing layer enclose the conductive material layer (14) and the absorbent pad layer (16). A plurality of radially oriented slits (44) extend through the conductive material layer (14) at an aperture (42) in the adhesive backing layer (12) to form a site (40) at which the drug solution can be injected into the absorbent pad layer (16). A snap-type electrical contact (22) is attached to the conductive material layer (14).

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