Porous shaped delivery devices and method of producing thereof
US5516530A · kind A · utility
24Cited by
4References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 1, 1994 |
| Grant date | May 14, 1996 |
| Priority date | — |
| Expiry date | Jun 1, 2014 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K9/2095
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
High strength, high porosity delivery devices have a shaped surface and disintegrate quickly in an aqueous medium. The devices can be prepared by disposing a formulation in a die to form a frozen predevice. A second die is contacted with the frozen formulation surface at a pressure and temperature for a time sufficient to locally momentarily liquify and shape the device surface. The shaping is followed by lyophilization.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.