Breathing machine pressure adjustment method and device and breathing machine

Abstract

The invention discloses a breathing machine pressure adjustment method. The method comprises the steps that when a user breaths, the minute ventilation at the preset frequency is collected, and a first-order linear equation is constructed according to the minute ventilation; the magnitude of a monomial coefficient of the first-order linear equation is judged, and / or the relation of the slope of the first-order linear equation and the preset slope range is compared; according to the judging result of the magnitude of the monomial coefficient, and / or the comparison result of the relation of the slope of the first-order linear equation and the preset slope range, the breathing positive pressure is adjusted. The invention further discloses a breathing machine pressure adjustment device and a breathing machine. The breathing machine can adjust the inspiration pressure in a self-adaptive mode, the accuracy of the actual ventilation output by the breathing machine can be improved, and therefore the error between the actual ventilation and the set target ventilation is reduced. The breathing machine can provide the ventilation volume meeting the requirement for treatment and can meet the requirement of a patient, and therefore the best treatment effect is achieved.

Description

technical field [0001] The invention relates to the field of medical technology, in particular to a ventilator pressure adjustment method, device and ventilator. Background technique [0002] At present, when non-invasive ventilation is used to treat COPD (chronic obstructive pulmonary disease, chronic obstructive pulmonary disease), it mainly relies on non-invasive ventilator to provide sufficient pressure support to ensure that patients receive sufficient ventilation. One of the key points of non-invasive ventilation intervention in COPD treatment is Ensure that the patient gets enough ventilation, and the ventilation requirement varies from person to person, and during the entire treatment process, due to the influence of the patient's physical condition and environment, the required pressure support is not necessarily constant. Rather, a degree of adjustment is required at any time. Traditional ventilators only provide the set positive expiratory pressure EPAP and posit...

AI Technical Summary

Problems solved by technology

Traditional ventilators only provide the set positive expiratory pressure EPAP and positive inspiratory pressure IPAP during treatment. If the set pressure is insufficient, the patient will not be able to get enough ventilation, and the doctor will need to go through several titrations. Get the most suitable pressure value for the patient, and during the treatment process, if the patient's state changes, the demand for pressure support will also change. At this time, the ventilator still operates according to the set pressure, and the actual ventilation volume output by the ventilator Unable to perform self-adaptive adjustment, the accuracy is poor, resulting in a large error between the actual ventilation volume and the set target ventilation volume, so the existing ventilator cannot meet the needs of patients, and thus cannot achieve the best curative effect

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