Non-invasive chemical species delivery apparatus and method
US4250878A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 22, 1978 |
| Grant date | Feb 17, 1981 |
| Priority date | — |
| Expiry date | Nov 22, 1998 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N1/306
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A bioelectrode for non-invasive and inotophoretic delivery of chemical species (such as ions, polar molecules, etc.) into the skin of a person. The bioelectrode includes a pouch having flexible walls, at least a portion of which is composed of a microporous, permeable or semipermeable membrane. The pouch holds fluid which contains the chemical species to be delivered through the skin. An electrode is attached to the pouch so that when the pouch is placed against the skin, with the membrane portion in contact with the skin, and an electric potential is applied to the electrode, chemical species in the pouch are caused to migrate through the membrane and into the skin.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.