| 摘要 |
Apparatus for controlling gas or drug delivery to a patient, said delivery being adapted to maintain effective respiratory function. The apparatus includes means (2, 3, 4) for monitoring one or more physiological variables such as breathing airflow sound, EEG, EOG, EMG and/or patient position associated with the patient. The apparatus also includes means (4) for deriving from the variables, data representing a physiological state associated with the patient and means (5) for determining from the data, a gas pressure or drug quantity which substantially prevents a deterioration in the state. The determining means may include an algorithm adapted to generate a gas pressure signal which is substantially 180 DEG out of phase relative to the phase of the patient breathing and/or sound. The apparatus may include a gas delivery means (6) for delivering gas to the patient in accordance with the determined gas pressure. The apparatus may include a drug delivery module (7) for delivering a drug to the patient. |
