Auxiliary sputum excretion method for non-invasive ventilator and non-invasive ventilator

Abstract

The invention relates to the technical field of medical treatment, in particular to an auxiliary sputum excretion method for a non-invasive ventilator and the non-invasive ventilator, and solves the technical problem how to help non-invasive ventilation patients excrete sputum. According to the auxiliary sputum excretion method for the non-invasive ventilator, during the normal mechanical ventilation for the patients by the non-invasive ventilator, after it is determined the patient needs sputum excretion, the sputum excretion operation is started in each respiratory cycle of the patient, andthe sputum excretion operation is not stopped until it is determined that the patient needs to stop sputum excretion. The non-invasive ventilator comprises inspiration and expiration branches, positive and negative pressure air sources, a sensor unit and a control unit, the sensor unit monitors physiological data used for determining whether or not the patient needs sputum excretion and needs to stop sputum excretion, the control unit analyzes the physiological data monitored by the sensor unit to determine whether or not the patient needs sputum excretion and needs to stop sputum excretion, after it is determined that the patient needs sputum excretion, the positive and negative pressure air sources are controlled to perform the sputum excretion operation, and the sputum excretion operation is not stopped until it is determined that the patient needs to stop sputum excretion.

Description

technical field [0001] The invention relates to the field of medical technology, in particular to an auxiliary expectoration method for a non-invasive ventilator and a non-invasive ventilator. Background technique [0002] 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. 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...

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.

Images