Medical breathing machine control method

Abstract

The invention discloses a medical breathing machine control method. The method comprises the following steps: in response to the start of an inspiration action of a user, starting a first flow sensor arranged at an air outlet of a fan of a breathing machine; in response to the start of the expiration action of the user, acquiring first air output recorded by the first flow sensor; starting a second flow sensor disposed in a mask; according to the first air output, acquiring a preset expiration tidal volume corresponding to the first air output; in response to the start of the next inspiration action of the user, acquiring the actual expiration tidal volume recorded by the second flow sensor; comparing the preset expiration tidal volume with the actual expiration tidal volume, and judging whether the breathing machine leaks air or not; in response to air leakage of the breathing machine, according to the first air output, the preset expiration tidal volume and the actual expiration tidal volume, acquiring second air output, corresponding to the preset expiration tidal volume, of the fan under an air leakage condition; and adjusting the fan of the breathing machine according to the second air output. According to the invention, air leakage detection and compensation are carried out on the breathing machine.

Description

technical field [0001] The invention relates to the medical field, in particular to a method for controlling a medical ventilator. Background technique [0002] In modern clinical medicine, the ventilator, as an effective means of artificially replacing the spontaneous ventilation function, has been widely used in respiratory failure caused by various reasons, anesthesia respiratory management during major surgery, respiratory support treatment and emergency resuscitation. It occupies a very important position in the field of modern medicine. Ventilator is a vital medical equipment that can prevent and treat respiratory failure, reduce complications, save and prolong the life of patients. [0003] According to the ventilation mode, ventilators are mainly divided into two types, constant pressure ventilator and constant volume ventilator. The constant pressure ventilator is a type of ventilator that only has a constant pressure ventilation mode, the airway pressure is const...

AI Technical Summary

Problems solved by technology

However, during the use of constant-volume ventilators, the ventilator will leak air due to various reasons (such as incorrect wearing of the mask, damage to the air pipeline, loose mask during use, etc.), and the leak of the ventilator will prevent the user from inhaling. Low tidal volume, hypoxemia

At present, there is no good way to detect and compensate for the air leakage of constant volume ventilators

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