pH buffered electrode for medical iontophoresis
US4973303A · kind A · utility
32Cited by
12References
37Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 5, 1989 |
| Grant date | Nov 27, 1990 |
| Priority date | — |
| Expiry date | Sep 5, 2009 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N1/0448
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A pH buffered electrode for receiving electrical energy and producing an electric field. The pH buffered electrode includes a first conductive layer and a pH buffer layer adjacent the first conductive layer. The pH buffer layer includes a pH buffer covalently coupled to an immobilizing material such as resin beads or polymers. The immobilizing material renders the pH buffer immobile in the presence of an electric field and allows H.sup.+ and OH.sup.- ions to be scavenged.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.