Detection system for noninvasive ventilation interface

An interface detection and air source technology, applied in the direction of measuring the acceleration and deceleration rate of fluids, using liquid/vacuum for liquid tightness measurement, instruments, etc., can solve the problem of reducing patient tolerance, patient intolerance, wearing discomfort, etc. question

Inactive Publication Date: 2013-02-27
BEIHANG UNIV
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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 pres

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  • Detection system for noninvasive ventilation interface
  • Detection system for noninvasive ventilation interface
  • Detection system for noninvasive ventilation interface

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Embodiment Construction

[0043] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0044] Such as figure 1 A non-invasive ventilation interface detection system shown includes: a controllable detection gas source that can generate a specified waveform, a three-dimensional human head model with a surface pressure sensor, a human respiratory system model including a simulated trachea and a simulated lung, and a human respiratory system model for detection controlled microprocessor. in:

[0045] (1) The system constructs a 3D head model according to the actual head characteristics of the patient by 3D scanning and other means, and connects the 3D head model to the simulated lung through the simulated trachea.

[0046] (2) if Figure 2-4 As shown, pressure sensors are placed on the 25 feature points of the three-dimensional head model:

[0047] Feature point 1: The nasal bone is close to the root of the nose, which ...

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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...

Claims

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Application Information

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IPC IPC(8): G01M3/26G09B23/28
Inventor 乔惠婷李德玉张琪裴葆青王丽斌
Owner BEIHANG UNIV
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