Breath-actuated nebulizer for medicine inhalation
US11291780B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 2, 2015 |
| Grant date | Apr 5, 2022 |
| Priority date | — |
| Expiry date | Oct 20, 2039 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/8225
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Breath-actuated nebulizers for delivering medicine are provided, including an outlet port; an opening; and a medicine cup coupled to the opening through a venturi tube. The medicine cup receives a medicine to be delivered through the outlet port, and is coupled to the outlet port. Some embodiments include a jet nozzle coupled to a pressurized gas source and protruding into the medicine cup, and a sleeve in the medicine cup fluidically coupling the venturi tube to the medicine cup and forming a capillary volume with the jet nozzle. In some embodiments, a rib supports a diverter disposed above a nozzle tip to form a radial flow of the pressurized gas away from a nozzle axis. Also provided is a method for manufacturing and using the above nebulizer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.