Medical device, namely, an electro-mechanical cough machine used to assist patients with an ineffective cough to clear secretions from the lungs by gradually applying positive pressure to the airway then rapidly shifting to negative pressure to produce a high expiratory flow rate from the lungs, simulating a cough

'airway':31 'appli':26 'assist':12 'clear':19 'cough':8,17,50 'devic':2 'electro':6 'electro-mechan':5 'expiratori':42 'flow':43 'gradual':25 'high':41 'ineffect':16 'lung':23,47 'machin':9 'mechan':7 'medic':1 'name':3 'negat':36 'patient':13 'posit':27 'pressur':28,37 'produc':39 'rapid':33 'rate':44 'secret':20 'shift':34 'simul':48 'use':10

COUGH ASSIST

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