Iontophoresis device
US7590444B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 30, 2005 |
| Grant date | Sep 15, 2009 |
| Priority date | — |
| Expiry date | Nov 21, 2026 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N1/0444
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An iontophoresis device for administering drug ions via the first ion-exchange membrane, comprising a first semi-permeable film having a number of pores passing through the film from a front surface to a back surface, a first ion-exchange membrane formed of ion-exchange resin filling the pores of the first semi-permeable film and selective ions of a first polarity, and a working electrode structure having a drug holding part placed on a back surface of the first ion-exchange membrane and holding a drug solution containing drug ions charged in the first polarity, wherein a layer of a water-soluble polymer compound is chemically bonded on the surface of the first semi-permeable film.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.