Method and system for detecting triggering of breathing machine

Abstract

The invention discloses a method and a system for detecting triggering of a breathing machine. The method comprises the following steps: a, setting flow triggering sensitivity Fsens or pressure triggering sensitivity Psens of the breathing machine; b, detecting a value of base flow Fbase or a positive end-expiratory pressure Peep; c, adopting a controller to control a negative flow generator to generate negative flow or a negative pressure which is linearly changed with time according to the triggering sensitivity; d, adopting the controller to monitor a flow or pressure catastrophe point and obtaining different of Fbase or Peep and a mutation value, i.e. an actual triggering value; e, calculating a triggering deviation of the breathing machine. The system comprises a pressure flow detection part (1), the negative flow generator (3), the controller (2), a breathing three-way joint (4) and a threaded pipe. The method nad the system implement automatic detection on the triggering deviation of the breathing machine and accuracy of detection is improved.

Description

technical field [0001] The invention belongs to the field of medical equipment detection, and relates to a ventilator trigger detection method and system. technical background [0002] Ventilator is a medical device commonly used in the treatment of critical illness. In the spontaneous breathing mode, the goal is to take care of the patient’s inspiratory needs as much as possible. When the patient wants to inhale, there will be a change in pressure or flow inside the pipeline, and the ventilator control system will judge the change. The valve for this judgment The value is the trigger sensitivity. If the threshold is reached, one ventilation will be given. If the threshold is not reached, it will be judged that there is no need for inhalation, and no ventilation will be given. [0003] The judgment threshold is called the trigger sensitivity, which corresponds to the two trigger modes of pressure and flow, respectively corresponding to the pressure trigger sensitivity Psens...

AI Technical Summary

Problems solved by technology

[0006] Existing technical solutions require a lot of manual intervention, especially the pumping link cannot guarantee the law of linear increase; in the judging and reading link, it is necessary to observe both the screen of the ventilator and the pressure or flow meter, and it is difficult to read the effective time at the trigger moment. value

There is currently no automated solution

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