Ventilators apply volume and pressure to a patient’s lung, to deliver assisted breathing. They are a vital part of critical care, which means the accuracy of ventilation variables is fundamental to patient safety. It is important that set values and actual values are equal. Ensuring ventilator accuracies is part of preventative maintenance procedures and is regulated across the world.
Ventilators are sophisticated medical devices essential in supplying respiratory support to critical ill patients in clinical facilities and homes. They are also regularly used during surgery whilst patients are under anaesthesia. Long term ventilation at home is progressively becoming more common, initiated by an increase in severe respiratory diseases. Despite ventilators being a necessary life-saving device, unskilled patients are often operating them. Even with appropriate training ventilators carry inherent risks.
Ventilator testing involves assessing performance across a wide range of conditions to ensure safety and accuracy for different patient types. Medical ventilators vary by application, for example, infant ventilators deliver approximately 2 mL of volume at 100 mbar pressure and 120 breaths per minute, while adult ventilators may deliver up to 2000 mL at 20 mbar and 12 breaths per minute. A ventilator tester measures key parameters such as flow, volume, pressure and oxygen concentration across this full spectrum.
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