Low cost electrodes for an iontophoretic device
US6584349B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 17, 1997 |
| Grant date | Jun 24, 2003 |
| Priority date | — |
| Expiry date | Nov 17, 2017 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N1/0448
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The present invention claims an apparatus for transdermal delivery of medicaments, with novel electrode systems, which avoids burns caused by changes in pH or excessive current applied at the sight of delivery, which is low in cost and easy to manufacture. In the present invention, preferably, the anode of the electrode system is predominantly formed from a low-cost bulk base metal which includes a coating of a precious metal thereon. The cathode of the electrode system is preferably formed from an chemically inert material which is a poor electron condutor and is coated on a good electron conductive material which has poor chemical stability. The electrode system of the present invention is highly efficient, easy to manufacture and cost-effective.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.