초록 ▼

A system for automatically controlling the amount of heat delivered to a human body through ventilator therapy so as to maintain the body at a desired core temperature. The temperature of the inspired and expired gas is measured by temperature sensors to control operation of an inhalation heater so

A system for automatically controlling the amount of heat delivered to a human body through ventilator therapy so as to maintain the body at a desired core temperature. The temperature of the inspired and expired gas is measured by temperature sensors to control operation of an inhalation heater so that the inspired gas temperature tracks the expired gas temperature with different adjusted separations. Automatic switching is under control of a body core temperature sensor detecting deviations from the desired body temperature.

대표청구항 ▼

In a respiratory gas breathing system having an inhalation gas heater, sensor means for measuring inhalation and exhalation gas temperatures, and power regulating means connected to the sensor means and the inhalation gas heater for controlling the amount of heat delivered by the heater such as the

In a respiratory gas breathing system having an inhalation gas heater, sensor means for measuring inhalation and exhalation gas temperatures, and power regulating means connected to the sensor means and the inhalation gas heater for controlling the amount of heat delivered by the heater such as the sensed inhalation gas temperature with respect to time is a tracking function of the sensed exhalation gas temperature and wherein the inhalation gas temperature normally tracks below the exhalation track temperature, the improvement residing in means for measuring body core temperature, and logic means connected to the body core temperature measuring means for comparing the measured body core temperature to a body core temperature threshold level and controlling the power regulating means to automatically change said tracking function in response to deviation of the body core temperature from said threshold level such that said sensed inhalation gas temperature tracks above said sensed exhalation gas temperature when said measured body core temperature is below said threshold level thereby restoring said measured body core temperature to said threshold level.