Detection system for noninvasive ventilation interface

Abstract

The invention belongs to a detection system (01) for a noninvasive ventilation interface and particularly relates to a detection system for evaluating the air leakage and the comfortableness of interfaces such as a nasal mask, a mouth-nose mask and a full-face mask (08) for noninvasive ventilation by combining three-dimensional structure characteristics of human heads. The detection system comprises a detection air source (02), a human head three-dimensional model (03), a simulation trachea (05), a lung model (04) and a micro processing unit (07), wherein the detection air source (02) can be used for generating a designated ventilation waveform; the human head three-dimensional model (03) can be used for detecting the surface stress; the simulation trachea (05) and the lung model (04) are connected with the human head three-dimensional model and allow sensors (06) to be placed; and the micro processing unit (07) can be used for evaluating the air leakage and the comfortableness of the head and the face. The air leakage is detected by comparing the preset ventilation waveform of the air source with the actually-detected waveform of the trachea model, and the stresses of the mask worn at different positions of the head are measured by a plurality of pressure sensors arranged on the head model and are compared with a human tolerance threshold, and thus the comfortableness of the mask is judged.

Description

technical field [0001] The invention belongs to a non-invasive ventilation interface detection system, and in particular relates to the detection of air leakage of a non-invasive ventilation interface (nasal mask, mouth and nose mask, face mask, etc.) and the evaluation of the comfort of wearing the non-invasive ventilation interface. Background technique [0002] The incidence of respiratory diseases is increasing year by year, and the death rate of respiratory diseases ranks fourth among all diseases. Mechanical ventilation is an important means of life support in the treatment of respiratory diseases, among which non-invasive ventilation is mostly used for common respiratory diseases such as chronic obstructive pulmonary disease, acute cardiogenic pulmonary edema and sleep apnea syndrome. Compared with invasive ventilation, non-invasive ventilation does not require endotracheal intubation, and the patient wears a nasal mask, mouth and nose mask, face mask, etc. to connect...

AI Technical Summary

Problems solved by technology

At present, there are various types of interfaces for non-invasive ventilation, such as nasal masks, mouth and nose masks, face masks, etc., which are fixed on the face through different types of connections, and each connecting part produces a corresponding pressure on the head. When the pressure is too high, the patient will not tolerate it.

Sometimes in order to prevent air leakage from the gap between the facial skin and the non-invasive ventilation interface, the connection and fixation device is strengthened, which may cause wearing discomfort and reduce the patient's tolerance

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