| 摘要 |
A method for delivering a dose of a gaseous drug to a patient with a respiratory disorder including powering a control circuit via a power supply, determining a normal resting breath rate for the patient via the control circuit, determining a current breath rate for the patient via the control circuit, comparing the current breath rate to the normal resting breath rate; determining a dose of the gaseous drug for the patient based on the comparison, positioning a spool valve within a spool valve assembly; and delivering the determined dose through the low flow valve, the high flow valve, and/or a combination of the low flow valve and the high flow valve, and the continuous flow valve based on the position of a spool valve. The control circuit may control a low flow valve, a high flow valve, and a continuous flow valve.
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