Method and apparatus for pulmonary administration of dry powder .alpha.1-antitrypsin
US5993783A · kind A · utility
56Cited by
72References
46Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 13, 1998 |
| Grant date | Nov 30, 1999 |
| Priority date | — |
| Expiry date | Jul 13, 2018 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/073
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Dry powders of .alpha.1-antitrypsin are administered pulmonarily to patients to treat, for example, certain types of emphysema. The dry powder compositions may comprise aggregates of fine particles, which aggregates are friable and break-up upon dispersion in a flowing gas stream. Typically, the dispersed powders are captured in a chamber and subsequently inhaled by a patient for pulmonary treatment of emphysema and other conditions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.