| 摘要 |
The device increases the range that aerosols are broadcast from nebulisers without interfering with the aerosol generation process. The device generates an independent carrier airflow underneath the nebuliser aerosol output port. Air is drawn into the two separate channels 2, 2 of a conduit which is of greater cross sectional area at one end (the base) than the other (the top) by independently controllable fans 5, 5. Air drawn in at the base is forced to the top where the two channels merge just behind a hooded outlet. By controlling the relative airflows in the two channels turbulence and pulsing may be induced in the expelled carrier airstream which is directed on an upwards trajectory. This independent carrier airflow passes through the generated aerosol and carries it much further from the nebuliser than without the device. |
