Iontophoretic delivery device and power supply therefor
US5374242A · kind A · utility
33Cited by
2References
33Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 7, 1993 |
| Grant date | Dec 20, 1994 |
| Priority date | — |
| Expiry date | Dec 7, 2013 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N1/30
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An iontophoretic drug-delivery device incorporating a power supply which minimizes the cost of the batteries needed by operating the batteries in a series configuration at the start of delivery, when the patient's skin resistance is high, and by switching the batteries into a parallel configuration when skin resistance drops. An automatic switching circuit for achieving this transition is included.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.