How does the Respironics Coughassistᵀᴹ MI-E simulate a cough to help the patient?

Question

Quizplus · Accepted Answer

The Respironics Coughassistᵀᴹ is an electrically powered pneumatic insufflation/exsufflation device that applies both positive and negative pressure to the airway.This ventilator gradually applies a positive pressure to the airway until peak pressure is reached,and then rapidly shifts to applying negative pressure to the airway.This rapid shift from positive to negative pressure assists the patient in generating sufficient expiratory flow rates to facilitate coughing.

How Does the Respironics Coughassistᵀᴹ MI-E Simulate a Cough to Help