| 摘要 |
<p>The invention relates to a respiratory gas dispensing apparatus for delivering a precise volume of respiratory gas to a patient within less than about half of an inspiratory effort comprising a source (10) of respiratory gas in operative communication with a valve means (30) capable of releasing a pulsed dose of respiratory gas in synchronization with the initiation of the inspiratory effort wherein the volume of the pulsed dose is constant throughout an entire pulse period. The invention further relates to a method of using the subject apparatus, and to the valve means contained in the subject apparatus. <IMAGE></p> |
