Mainstream type synchronous monitoring device and method for multiple kinds of breathing gas concentrations and breathing gas pressure
A breathing gas and monitoring device technology, which is applied in the field of biomedical engineering, can solve the problems of being easily disturbed by breathing air flow and limited range of use of breathing air pressure monitoring, and achieves the effect of convenient and fast synchronous monitoring
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[0032] The present invention will be described in further detail below in conjunction with the accompanying drawings.
[0033] The mainstream breathing gas concentration and breathing air pressure monitoring system consists of a host computer, a monitoring module and a breathing pipeline. The upper computer is a general-purpose computer or monitor. Monitoring modules such as figure 1 As shown, the differential pressure air pressure sensor is placed between the two pressure-taking holes 1 of the breathing tube, and the infrared light source and the four-channel infrared sensor are respectively placed on both sides of the monitoring window 6 of the breathing tube. When the respiratory airflow enters and flows in the pipeline through the air inlet 4, the infrared sensor outputs a modulation signal with a fixed period by controlling the flickering of the infrared light source, and the signal is collected by the acquisition processing circuit. At the same time, when the airflow e...
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