Performances of Different Control Laws for Automatic Oxygen Supply for Copd Patients
Many of the patients with pulmonary insufficiency are administered to breath either pure oxygen (O2) or high concentrations of oxygen from a mask or an intranasal tube. Depending on the level of the lung insufficiency the physician administers a certain amount of oxygen the patient have to inhale. The purpose of the oxygen therapy is to ensure that the patient’s arterial partial pressure of oxygen (PaO2) is maintained near the correct value. However, exercise is known to induce a decrease in the oxygen concentration in the blood and it is hard to predict how much PaO2 decreases during exercise from the common pulmonary function tests such as spirometry or arterial blood gas analysis.
KeywordsChronic Obstructive Pulmonary Disease Oxygen Therapy Adaptive Observer Unknown Disturbance Adaptive Control Technique
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