| 摘要 |
A plurality of different parameters related to carbon dioxide output in a patient (12) are routinely determined in ventilator/anaesthetic systems (4). An improved design of the ventilator/anaesthetic system (4) for determining carbon dioxide parameters is disclosed. The ventilator/anaesthetic system (4) comprises a ventilator unit (6), in which a first flow meter (20) is arranged to measure an expired flow of gas, and a carbon dioxide meter (22) is arranged to measure the concentration of carbon dioxide in expired gas. Arranging the carbon dioxide meter (22) in the ventilator/anaesthetic unit (6) minimizes the equipment which needs to be set up in the immediate vicinity of patient, and a faster, more sensitive carbon dioxide meter (22) can be used. <IMAGE> |
