Carrier particles for use in dry powder inhalers
US6521260B1 · kind B1 · utility
51Cited by
5References
25Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 6, 2000 |
| Grant date | Feb 18, 2003 |
| Priority date | — |
| Expiry date | Oct 6, 2020 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61P11/08
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A powder for use in a dry powder inhaler includes active particles and carrier particles for carrying the active particles. The powder further includes additive material (4) on the surfaces of the carrier particles to promote the release of the active particles from the carrier particles on actuation of the inhaler. The powder is such that the active particles are not liable to be released from the carrier particles before actuation of the inhaler. The inclusion of additive material (4) in the powder has been found to give an increased respirable fraction of the active material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.