Iontophoresis device

An iontophoresis device, comprising:

• a working electrode assembly and a non-working electrode assembly, for use in administering an ionic drug by iontophoresis, the ionic drug is formed of a photosensitized reactive material to be activated by absorbing light, and an irradiation optical system for applying light from a vicinity of a tip of the working electrode assembly carried by the holding portion;
• a DC electric power source connected to the working electrode assembly and the non-working electrode assembly with opposite polarities;
• a rod-shaped member that supports the working electrode assembly and the non-working electrode assembly;
• a holding portion for detachably supporting the rod-shaped member;
• the working electrode assembly and the non-working electrode assembly being disposed at a tip of the rod-shaped member, and
• a predetermined amount of spacing being provided between the working electrode assembly and the non-working electrode assembly.

An iontophoresis device, comprising:

• a working electrode assembly and a non-working electrode assembly, for use in administering an ionic drug by iontophoresis;
• a DC electric power source connected to the working electrode assembly and the non-working electrode assembly with opposite polarities;
• a rod-shaped member that supports the working electrode assembly and the non-working electrode assembly;
• a holding portion for detachably supporting the rod-shaped member, the working electrode assembly and the non-working electrode assembly being disposed at a tip of the rod-shaped member, and
• a predetermined amount of spacing being provided between the working electrode assembly and the non-working electrode assembly, and wherein
• the working electrode assembly comprises:
• the working electrode connected to the DC electric power source having the same polarity as that of a charged ion of the ionic drug;
• an electrolyte solution holding portion holding an electrolyte solution, the electrolyte solution holding portion being placed on a front surface of the working electrode;
• a second ion exchange membrane selecting an ion having a polarity opposite to that of the charged ion of the ionic drug, the second ion exchange membrane being placed on a front surface of the electrolyte solution holding portion;
• a drug solution holding portion holding the ionic drug, the drug solution holding portion being placed on a front surface of the second ion exchange membrane;
• and
• a first ion exchange membrane selecting an ion having the same polarity as that of the charged ion of the ionic drug, the first ion exchange membrane being placed on a front surface of the drug solution holding portion;
• and
• the non-working electrode assembly comprises:
• the non-working electrode connected to the DC electric power source having a polarity opposite to that of the charged ion of the ionic drug;
• a second electrolyte solution holding portion holding a second electrolyte solution, the second electrolyte solution holding portion being placed on a front surface of the non-working electrode;
• a third ion exchange membrane selecting an ion having the same polarity as that of the charged ion of the ionic drug, the third ion exchange membrane being placed on a front surface of the second electrolyte solution holding portion;
• a third electrolyte solution holding portion holding a third electrolyte solution, the third electrolyte solution holding portion being placed on a front surface of the third ion exchange membrane;
• and
• a fourth ion exchange membrane which is the ion exchange membrane selecting an ion having a polarity opposite to that of the charged ion of the ionic drug, the fourth ion exchange membrane being placed on a front surface of the third electrolyte solution holding portion.