Method and device for delivering aerosolized medicaments
US6681767B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 1, 2000 |
| Grant date | Jan 27, 2004 |
| Priority date | — |
| Expiry date | May 1, 2020 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2206/16
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A device for accurately delivering aerosolized doses of a medicament disperses a measured amount of drug in a measured volume of carrier gas and transfers the resulting aerosol to a chamber prior to inhalation by a patient. The chamber is filled efficiently with the aerosol, and inhalation by the patient draws the aerosol dose into the lungs. This is followed by the inhalation of atmospheric air that will push the initial dose well into the lung interiors. The apparatus optimally includes a dose regulator, a counter, a clock, a dose memory and a signal to indicate when a dose is ready for inhalation. Optimal chamber designs are disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.