Dry powder delivery system
US6595209B1 · kind B1 · utility
28Cited by
21References
14Claims
0Family size
Inventors
Key dates
| Filing date | Jan 30, 1998 |
| Grant date | Jul 22, 2003 |
| Priority date | — |
| Expiry date | Jan 30, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/5196
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A dry powder delivery system and method for use, the system having an elongated tube containing a matrix having a measured amount of dry particles of a therapeutic compound and a porous element having a desiccant therein. The porous element with the desiccant can be combined with the powder-containing matrix or it can be two separate elements. The pressure drop induced by inhalation of the user causes air to flow through the tube and into contact with the particles of dry powder for discharging the particles for inhalation by the user.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.