Method for manufacturing a controlled-release device
US5958317A · kind A · utility
6Cited by
5References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 18, 1997 |
| Grant date | Sep 28, 1999 |
| Priority date | — |
| Expiry date | Aug 18, 2017 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61Q15/00
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A method of manufacturing a controlled-release device is described. The method comprises taking a hollow tubular element which is permeable to the active substance to be released and injecting it with at least two plugs of hardenable material. These plugs form partitions which block the hollow tubular element and are spaced apart to form at least one discrete hollow chamber. The hardenable material is then hardened and an active substance is introduced into at least one of the discrete hollow chambers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.