Ventilator pressure control method and ventilator based on breathing conversion

Abstract

The invention relates to a breathing switching based breathing machine pressure control method and a breathing machine. The breathing switching based breathing machine pressure control method comprises the steps that gas flow data of the breathing machine is acquired, an expiration time point corresponding to an expiration inflection point of a user during expiration in each expiration period is determined according to the acquired gas flow data; whether a breathing state of the user is rapid breathing or normal breathing is judged based on the gas flow data corresponding after the expiration time point within the same expiration period, and whether an inspiration time point when the user begin to inspire corresponding in a breathing period is determined according to a judgement result; a breathing machine pressure is controlled based on the gas flow data corresponding to the expiration time point in each breathing period and the gas flow data corresponding to the inspiration time point. The breathing switching can accurately control the breathing machine pressure, discomfort brought to the user in the using process is avoided, and the usage experience of the user is improved.

Description

technical field [0001] The invention relates to the technical field of medical equipment, in particular to a breathing conversion-based ventilator pressure control method and a ventilator. Background technique [0002] At present, non-invasive ventilators used in hospitals generally have only one pipeline connected to the user's mouth and nose. When inhaling, the ventilator increases the pressure to Inspiratory Positive Airway Pressure (IPAP), and the pressurized gas passes through the tube. The way to enter the user's lungs, there is still positive pressure when exhaling, the gas exhaled by the user is generally discharged into the air through the exhaust hole on the mask, and if the pressure provided by the ventilator is greater when exhaling, it will pass through the mask. The larger the amount of gas emitted. In addition, the mask is fixed on the user's cheek by straps. If the user's body moves or the mask is not worn properly, air may leak between the mask and the user...

AI Technical Summary

Problems solved by technology

In addition, the mask is fixed on the user's cheek by straps, if the user's body moves or the mask is not worn properly, there may be air leakage between the mask and the user's face

When the ventilator is applying pressure to control the flow of gas, based on the above-mentioned exhaust hole exhaust and the possible air leakage between the mask and the user's face, it is difficult for the ventilator to accurately control the pressure, and it is easy to use Sometimes it causes discomfort to the user, and the user experience is not good

Images