Breathing-machine inspiration triggering method and application
A ventilator, inspiratory pressure technology, applied in the direction of respirator, breathing mask, drug equipment, etc., can solve the problems of delay, real-time and accuracy impact, timeliness and accuracy discount, etc., to eliminate interference, effectively The effect of accurate judgment and avoidance of dependence
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[0034] Such as Figure 1~3 As shown, the present invention provides a method for triggering inhalation by a ventilator. The specific process is as follows:
[0035] First, make sure that the sampling frequency of the ventilator is set to 500 Hz, and collect the flow rate at the mask end of the ventilator. All flow data uses hardware (this embodiment uses hardware circuits on hardware for low-pass filtering. This filtering method is commonly used in the industry. The filtering method is mainly through the combination of capacitor and resistance, which will not be repeated here). Perform low-pass filtering to obtain the filtered real-time flow value xi; this process can basically ensure that the acquired data has no pulse interference, and the rest is only Lighter power frequency interference, the specific graphics are as figure 1 As shown, the horizontal axis in the figure represents time (in ms), and the vertical axis represents flow (in LPM).
[0036] Secondly, after obtaining ...
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