The application discloses a tracheal
catheter device with rotating permanent
magnet positioning and selective
brain cooling function and a
temperature control method thereof, wherein a plurality of flexible
semiconductor refrigerating sheets and a plurality of temperature and
humidity sensors are inlaid on the inner wall side along the extension direction of the
catheter and the side close to the outer wall of the flexible tracheal
catheter; the function of heating the humidified gas entering the tracheal catheter is realized; the local low-temperature environment is realized by cooling the outer wall of the
tracheal intubation tube, so that the brain is protected to a certain extent. The low temperature reduces the
metabolic rate of brain cells and reduces the
oxygen consumption of the brain, which helps to reduce brain injury and improve the
brain function recovery effect of the patient; the flexible
semiconductor refrigerating sheet and the temperature and
humidity sensor are used for accurate
temperature control, the temperature of the outer wall of the
tracheal intubation tube is accurately adjusted, and the
adverse effect of excessive temperature fluctuation on the
brain protection effect is avoided, so that the method is more targeted and controllable than the traditional cooling method.