Ion mobility limiting iontophoretic bioelectrode

Details Ion mobility limiting iontophoretic bioelectrode Ion mobility limiting iontophoretic bioelectrode

A - Human Necessities

61

N

326/17.2

A61N 1/30 (2006.01)

Patent

CA 1181490

A B S T R A C T A bioelectrode for use in the iontophoretic delivery of ions into the skin or tissue of a person includes either a recep- tacle or a composition of material suitable for holding ions to be delivered, a metallic foil disposed on one side of the receptacle or composition of matter, and a coupling device for electrically coupling the foil to an electrical source. The other side of the receptacle or composition of material is for placement against a person's skin or tissue so that ions may be delivered thereinto. The receptacle or composi- tion of material both include features or characteristics which inhibit the migration of ions laterally therein, i.e., in a direction generally parallel to the surface of the skin or tissue, but which allow migration in a direction generally perpendicular to the surface of the skin or tissue, and in particular from the metal foil toward the person's skin or tissue. The advantage of this capability is to provide a substantially uniform movement of ions into the skin or tissue over surface area of contact of the bioelectrode with the skin.

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