Transdermal delivery device having delayed onset
US5271940A · kind A · utility
81Cited by
8References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 27, 1992 |
| Grant date | Dec 21, 1993 |
| Priority date | — |
| Expiry date | Mar 27, 2012 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2013/00906
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A transdermal delivery device has a reservoir containing an active compound, which is kept separate from the delivery layers of the device until administration. At the time of administration, the reservoir is laminated to the delivery layers, or is ruptured to place the active compound, vehicle, and/or permeation enhancers in contact with the delivery layers, which results in administration of the active compound to the skin after a delay period.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.