Iontophoresis electrode
US6327496A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 12, 1999 |
| Grant date | Dec 4, 2001 |
| Priority date | — |
| Expiry date | Jul 12, 2019 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N1/30
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An iontophoresis electrode (10) is disclosed including a backing layer (22) formed of PVC or similar material including plasticizers providing softness and conformability and a conductive layer (18) formed of carbon or similar polymer material having electrical characteristics which are negatively affected with the migration of the plasticizers. A barrier layer (26) is provided to prevent the undesired migration of plasticizers from the backing layer (22) into the conductive layer (18). In one preferred form, the barrier layer (26) is a sacrificial layer, such as of identical construction as the conductive layer (18), for acceptance of the migration of the plasticizers. In another form, the barrier layer (26) is an impermeable layer formed of material in which the plasticizer is immiscible so as to prevent the migration of the plasticizers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.