Artificial nose and breathing circuit having the artificial nose

摘要

A moisture permeable and water resistant film 6 that is disposed around the outer shell 4 and the entire inner surface of the outer shell 4, forms a water retaining region 10 between the outer shell 4, and forms a ventilation region 12 on the inner surface side, and a water retaining region 10. A water supply port 16 provided in the outer shell 4 for supplying water to the outer shell 4, a thermal moisture exchange element 14 mounted in the ventilation region 12, and a heater 8 disposed outside the outer shell 4, Water supplied from the water supply port 16 is held in the water retention region 10 by the moisture permeable and water resistant film 6, and the artificial nose through which the inspiratory gas and the exhaled gas pass through the thermal moisture exchange element 14 attached to the vent region 12. The heat and moisture exchange element 14 captures and holds the heat and moisture of the exhaled gas passing through it, and then releases the heat and moisture to the intake gas passing through it. Water generated by heating and humidifying process 1 and heating of heater 8 Only the air passes through the moisture-permeable and water-resistant film 6 and is supplied to the intake gas passing through the heat and moisture exchange element 14 to heat and humidify the intake gas. An artificial nose 2 and a breathing circuit including the artificial nose 2 are provided for performing a second heating and humidifying process for heating an inhaled gas.