Controlled-release system with constant pushing source
US5082668A · kind A · utility
129Cited by
21References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 9, 1990 |
| Grant date | Jan 21, 1992 |
| Priority date | — |
| Expiry date | Oct 9, 2010 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K9/0004
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A device is disclosed comprising a wall that surrounds a compartment. The compartment comprises a beneficial agent composition and a push composition. A passageway in the wall connects the compartment with the exterior of the device for delivering the beneficial agent at a rate governed, in combination, by the wall, the beneficial agent composition and the push composition through the passageway of the device over time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.