Self-retaining gastrointestinal delivery device
US5198229A · kind A · utility
44Cited by
29References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 5, 1991 |
| Grant date | Mar 30, 1993 |
| Priority date | — |
| Expiry date | Jun 5, 2011 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K9/0004
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present invention is directed to a fluid-imbibing drug delivery device having a first, low density such that it floats in the stomach contents for a predetermined prolonged period of time, during which prolonged period of time it dispenses a drug or other active agent to the stomach, and having a second, higher density such that the device exits the stomach at the end of the predetermined prolonged period of time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.