Patent ID: 7590444
Filing Date: 2009-09-15
Classification: A61N

Abstract:
1. An iontophoresis device comprising a working electrode structure, comprising: a first ion-exchange membrane of the working electrode structure including a first semi-permeable film of the working electrode structure with a number of pores communicating a front surface and a back surface of the first semi-permeable film of the working electrode structure and an ion-exchange resin filled in the pores of the first semi-permeable film of the working electrode structure, said first ion-exchange membrane of the working electrode structure selecting ions of a first polarity; and a drug holding part placed on a back surface side of the first ion-exchange membrane of the working electrode structure and holding a drug solution containing drug ions charged in the first polarity, wherein a first layer of the working electrode structure having a water-soluble polymer compound chemically bonded to a material constituting the first semi-permeable film of the working electrode structure is formed on the front surface of the first semi-permeable film of the working electrode structure.