Abstract: A first conductive sheet film is disposed on a partial area of the skin-contact surface of an adhesive member. A conductive matrix is disposed on the first conductive film, the conductive matrix being dispersed with a drug to be permeated through skin. A second conductive film is disposed on the conductive matrix, the second conductive film having a plurality of openings distributed on the surface of the conductive matrix and having a standard single electrode potential lower than that of the first conductive film. An insulating film is disposed between the conductive matrix and the second conductive film in a manner such that an electric short path is not formed between the conductive matrix and the second conductive film. The insulating film has a plurality of openings distributed on the surface of the conductive matrix, and a connection member electrically interconnects the first and second conductive films.

Abstract: A skin-contact type medical treatment apparatus has a first conductive member having a contact surface made of single metal or alloy and a second conductive member having a contact surface made of semiconductor. The standard single-electrode potential of the semiconductor constituting the contact surface of the second conductive member is lower than a standard single-electrode potential of the metal constituting the contact surface of the first conductive member. The apparatus further includes a parallel circuit of a diode and a capacitor electrically connected to the first and second conductive members. The apparatus is used by making both the contact surfaces of the first and second conductive members in contact with skin.

Abstract: A skin-contact type medical treatment apparatus is provided which includes: a first conductive member having a first skin-contact surface in contact with a first surface of skin when in use, the first skin-contact surface being made of metal or its alloy; and a second conductive member having a second skin-contact surface in contact with a second surface of skin different from the first surface when in use together with the first conductive member, the second skin-contact surface being made of n-type semiconductor material having a standard single electrode potential lower than that of the first skin-contact surface. The first and second conductive members are electrically connected by a protective resistor at an area different from the first and second skin-contact surfaces, the protective resistor having a resistance value in the range of from 0.1 to 50 M.OMEGA..