Controlled release drug delivery device
US5681584A · kind A · utility
207Cited by
9References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 22, 1996 |
| Grant date | Oct 28, 1997 |
| Priority date | — |
| Expiry date | Mar 22, 2016 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K9/209
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A drug delivery device for delivering a drug either intermittently or to a pre-selected region of the gastro-intestinal tract, particularly to the colon, consists of an a solid core comprising an active agent coated with a delay jacket, then coated with a semi-permeable membrane which is optionally drilled to provide a release orifice, and then optionally further coated with an enteric material. The device delivers substantially all of the active agent to the targeted site.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.