Dispenser comprising hydrophilic osmopolymer
US5000957A · kind A · utility
114Cited by
60References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 28, 1989 |
| Grant date | Mar 19, 1991 |
| Priority date | — |
| Expiry date | Mar 28, 2009 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M31/002
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A dispensing system is disclosed comprising a wall surrounding a lumen. The lumen comprises (1) a thermo responsive composition comprising a beneficial agent, (2) means for occupying space in the lumen for pushing the thermo responsive composition from the dispensing system, and (3) means for enhancing the amount of the beneficial agent dispensed from the system positioned between the thermo responsive composition and the means for occupying space.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.