| 摘要 |
A respiratory gas delivery system 10 comprises a wearer interface 16 through which respiratory gas is supplied to a wearer's airway and a gas conditioning device 24 for conditioning the respiratory gas upstream of the interface. The conditioning device has a controller 78 and the interface has a sensor for measuring an operating variable so that the controller controls the operation of the conditioning device based on said sensor measurement. Preferably, the interface is an artificial airway such as an endotracheal tube and a temperature sensor (44, figure 3) is mounted in its wall and detects the core body temperature of the wearer. A heater 80 and water reservoir (70, figure 6) in the conditioning device maintain the gas at a desired temperature and humidity determined in response to the sensed core body temperature. A heated tube 22 may be used to transport the gas to the wearer. |
