Finding resonant frequency of mucus in patient

[jaggz]

I'm trying to find a way to discover the resonant frequencies of music in a patient's airway or lungs (depending on the day), to try to then vibrate it with audio to help the patient (with a weak cough) clear it out.
Anyone have any ideas on how I might go about this?
Notes: They breath on a ventilator, and do not have the muscle strength/control to maintain their chest (lungs) in a particular position. The ventilator is on their nose, though, so their mouth->airway can be open. Usually laying in a prone position, if we stop the ventilator for some seconds, gravity will cause an exhalation. (They can block this exhalation (ie. they can hold their breath, using their mouth/throat), but I don't know a way that they can otherwise regulatete and keep a completely open airway with filled lungs.

 

[ddude003]

Don't know how much this helps... And... The first thing that comes to mind is Peter Frampton's "Talk Box"... Do you feel like we do... It is basically a horn compression driver connected to a plastic hose... The driver connects to an amp and the hose goes in the mouth... You could have another plastic hose for the return sound to connect to a microphone to take measurements via something like REW... REW can supply tone sweeps to the "Talk Box" as well as take the returned measurements... Sounds like a multi-million dollar idea... Should we sign a nondisclosure...