Oscillator

[Britney]

An [oscillator] is an [HFOV].
2. An oscillator is a medical device used in the hospital when a conventional [ventilator] isnt working, and/or the patients lungs are to fragile to tollerate opening, and closing. It shoots several hundred breaths per minute into the patients lungs at very small puffs, so the lungs can rest, and they dont have to open and close, and while they are resting, the patient is still being ventilated.

[Oralee]

A device for generating oscillatory electric currents or voltages by non-mechanical means.