Noninvasive ventilator

Abstract

The invention relates to the technical field of medical treatment, in particular to a noninvasive ventilator. The technical problem of how to help a noninvasive ventilation patient discharge sputum issolved. The noninvasive ventilator comprises inspiration and expiration branches, positive-pressure and negative-pressure air sources, a sensor unit and a control unit. The sensor unit monitors physiological data used for judging whether a patient needs sputum excretion or not and whether sputum excretion needs to be stopped or not. The control unit analyzes the physiological data monitored by the sensor unit to judge whether the patient needs sputum excretion or not and whether sputum excretion needs to be stopped or not, and after judging that the patient needs sputum excretion, the controlunit controls the positive pressure air source and the negative pressure air source to conduct sputum excretion operation till it is judged that the patient needs to stop sputum excretion.

Description

[0001] This application is a divisional application of an invention patent application with an application date of May 2, 2018, an application number of 201810409032.5, and an invention title of "Auxiliary expectoration method for non-invasive ventilator and non-invasive ventilator". technical field [0002] The invention relates to the field of medical technology, in particular to a non-invasive ventilator. Background technique [0003] Medical positive pressure ventilators can be roughly divided into two categories, invasive ventilators and non-invasive ventilators. Invasive ventilators need to establish artificial airways such as oral or nasal endotracheal intubation and tracheostomy tubes, and ventilate patients through artificial airways. Non-invasive ventilators usually use masks to complete the function of mechanical ventilation. Compared with invasive ventilators, non-invasive ventilators have the advantages of convenient use, non-invasiveness, and easy off-line. D...

AI Technical Summary

Problems solved by technology

Due to the traumatic nature of invasive mechanical ventilation, it will bring the following disadvantages: patients are more likely to get ventilator-associated pneumonia (VAP), and it is more likely to cause the loss of the patient's physiological function and form ventilator dependence; medical staff are required to provide higher care The normal physiological function of the patient is damaged, and normal communication cannot be carried out, which seriously affects the quality of life of the patient; it will also bring greater economic pressure to the patient's family

In principle, it is closer to the process of expectoration of normal people, but it has the following disadvantages: first, when it is necessary to expectorate and stop expectoration depends entirely on the judgment of medical staff, which increases the workload of medical staff; Sometimes the patient needs to take off the ventilator and replace it with MIE; third, there is no connection between the parameter settings of the ventilator and MIE, and it is easy to cause barotrauma during MIE ventilation; fourth, the simulated coughing action can only be simply completed, and cannot Help patients loosen sputum before expectoration

Also because of the above reasons, MIE has not been widely used clinically.

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