Apparatus and method for generating and concentrating fine particle aerosols
US10207062B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 11, 2016 |
| Grant date | Feb 19, 2019 |
| Priority date | — |
| Expiry date | Oct 11, 2036 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2206/10
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A system and a method for generating a respirable dry powder aerosol (15) from a liquid solution or liquid suspension at a respirable dry powder aerosol volume flow (91). A liquid aerosol generating nozzle (3) generates from the liquid solution or liquid suspension a liquid aerosol (13) that is diluted by dilution gas (4) and dried in a cylindrical evaporation chamber (6) to generate a dry powder aerosol (14) that is subsequently concentrated by a cylindrical single linear slit aerosol concentrator (9). The system and method may include heliox as a gas, specifically dilution gas (4), for enhancing both the drying process in the cylindrical evaporation chamber (6) and for enhancing the concentration efficiency, but also as a nozzle gas (2) for enhancing generating the liquid aerosol (13) from the liquid solution or liquid suspension.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.