MORE ABOUT VENTILATORS

Last updated 26/05/2004

     I've been on a ventilator for 17 years since my nineteenth birthday when I had
     pnumonia, it started two days before with a normal chest infection that turned
     very quickly during the night making it very difficult to breath so we called the
     doctor and the rest as they say is history!
     respirator The respirator is a mechanical device used to ventilate the lungs of patients who cannot
     readily breathe by themselves.These devices, also known as ventilators and resuscitators, are used
     during and immediately after certain kinds of surgery and in other medical emergencies. Persons
     with paralysed or very weak respiratory systems may need them permanently. Respirators are
     either negative- or positive-pressure. The negative-pressure type acts by alternately creating a partial
     vacuum that causes a patient's lungs to expand and draw air in, then destroying the vacuum and letting
     the lungs release their used air. One such device, the IRON LUNG, was developed in the 1930s
     for completely paralysed persons. Modified forms include the cuirass respirator, which surrounds
     only chest and abdomen. The positive-pressure type of respirator acts by forcing air into the lungs
     and then letting the air escape. Such devices include the demand, or assist respirator which is
     triggered by the user's drawing in of breath.