| 摘要 |
An apparatus for automatically controlling a ventilator is provided. The apparatus includes: a data processing means indicative of a measured oxygen level of a patient, and for providing output data indicative of required concentration of oxygen in inspiratory gas of the patient (FIO2) and positive end-expiratory pressure (PEEP) for a next breath of the patient; where FIO2 is determined to reduce the difference between the measured oxygen level of the patient and a desired value; where PEEP is determined to keep a ratio of PEEP/FIO2 within a prescribed range and, while keeping the ratio within the prescribed range, to keep the measured oxygen level of the patient above a predefined value; and second means, operatively coupled to the processing means, for providing control signals, based on the output data provided by the processing means, to the ventilator; where the control signals provided to the ventilator automatically control PEEP, and FIO2, for a next breath of the patient. A method to control the apparatus is also disclosed. |
