| abstract |
An airflow control device (200) is described for an inhalation-actuated powder inhaler. The air flow control device includes a channel (202) having a proximal end (201) and a distal end, the proximal end providing fluid communication from the deagglomerator outlet to the distal end of the channel, and the air flow control device also contains means , 206, 210, 211, 212), allowing air to pass from the proximal end of the control device to the distal end of the control device regardless of the air flow in the channel when caused by inhalation transpose pressure is applied to the distal end of the air flow regulation device. |