It was the assistive breathing device of the day, using negative pressure to create a vacuum which would cause the lungs to draw air. Now the most common approach is positive-pressure ventilation, in which a machine delivers a measured volume of gas into the lungs. The machinery has become very advanced. There are a number of portable products that can be installed on a wheelchair. Machines even have the ability to simulate a sigh, to recreate the normal pattern of breathing as much as possible.
Settings control respiratory rate, humidity, and pressure.
I have had my trach and vent for a couple of years now, and it just seems like it has been part of me for a long time. But I do remember when they took me off of the hospital vent and put me on my personal one that I coughed and choked a lot until they got the vent settings adjusted correctly. I must say that the training was excellent. The tracheal tube With a ventilator, breathing occurs through a tube inserted through the neck, nose, or mouth. An inflatable cuff tracheostomy tube is often used in the neck to maintain pressure into the opening and prevent respiratory gases from escaping around the outside.