Artificial Ventilators
- Created by: Jasmin
- Created on: 09-04-13 17:10
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- Artificial Ventilators
- VENTILATION
- The movement of air into and out of the lungs
- Help people to breathe, who can't breathe by themselves
- Ventilators are machines that move air into and out of the lungs
- People struggle to breathe
- Tubes leading to lungs narrow so less air gets through
- Structure of alveoli can break down
- Accident or disease
- The Iron Lung - Negative Pressure
- Giant case neck to abdomen
- Air pumped out of gas, pressure dropped, lungs expanded so air drawn into lungs
- Modern version 'shell'
- Mini cylinder fits around chest - easier for patient to use
- Used mostly by the paralysed
- Positive pressure breathing
- Forces a carefully measured 'breath' of air into lungs
- Once lungs inflated, air pressure stops
- Lungs deflate, ribs move down, force air back out lungs
- ADV = equipment can be used at home, patients have control over machine, can link to computer systems - manage own breathing
- DIS = can occasionally cause damage (burst alveoli) if lungs can't cope with artificial air flow
- VENTILATION
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