| 摘要 |
A ventilator (40), designed for connection to a patient (42) to provide assisted breathing, comprising a gas flow generator (52), a pressure meter (56, 60), a flow meter (58, 62) and a control unit (66), devised to determine a gas pressure, on the basis of a pre-set tidal volume for the patient (42) and measurement signals from the pressure meter (55, 60) and flow meter (58, 62), for each breath and to regulate the gas flow generator (52) so it generates the gas pressure, is described. An improved breathing mode, better tailored to the patient, is achieved when the control unit (66) is also devised to determine the gas pressure to be generated by the gas flow generator (52) on the basis of mechanical resistances and a variable corresponding to the aggregate effect of the resistance and elastance of the lungs. <IMAGE>
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