Human body breathing simulation device and simulation method

A technology of breathing device and simulation method, which is applied in the field of breathing simulation, can solve problems such as difficulty in meeting analysis requirements, insufficient reliability, and inability to simulate, and achieve the effects of enhancing reliability evaluation, improving the degree of reflection, and verifying reliability

Active Publication Date: 2022-05-13
SHANDONG UNIV
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Problems solved by technology

However, in the state of periodic breathing in the human body, patients have various forms of mouth and nose breathing. When analyzing the aerodynamic characteristics of various upper respiratory diseases, the role of mouth breathing and its proportion in respiratory diseases cannot be ignored. Therefore, The existing fluid dynamics simulation ignoring the oral cavity does not match the real breathing condition of the patient, and cannot simulate different oral and nasal breathing conditions, resulting in insufficient reliability and difficulty in meeting the analysis needs

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  • Human body breathing simulation device and simulation method

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Embodiment 1

[0028] In an exemplary embodiment of the present invention, as figure 1 As shown, a simulated human breathing apparatus is given.

[0029] like figure 1 The simulated human breathing device shown is used to simulate the airflow state of the upper respiratory tract under the periodic breathing of the human body, and to monitor the pressure of multiple positions of the airflow passage in the upper respiratory tract to obtain different ratios of mouth breathing and nasal breathing. Airflow data inside the airway to simulate the patient's breathing data in different states.

[0030] Due to the complexity of respiratory diseases in clinical patients, there is often a situation where mouth and nose breathing is shared, and it is necessary to simulate mouth breathing while simulating nasal breathing. combine figure 1 , the simulated human breathing apparatus mainly includes an air supply component and an upper airway model 9, corresponding to the state of mouth breathing and nasal...

Embodiment 2

[0049] In another exemplary embodiment of the present invention, as figure 1 As shown, a method of human breathing simulation is given.

[0050] Utilize the simulated human breathing apparatus as in embodiment 1, and comprise the following steps:

[0051] The upper airway model 9 is established according to the three-dimensional scanning data of the upper airway of the patient, and the installation position of the load cell is selected according to the anatomical structure of the upper airway;

[0052] The air supply components corresponding to the nasal cavity and the oral cavity of the upper respiratory tract model 9 work to form a simulated breathing airflow in the airflow channel;

[0053] Measure the airflow flow of the nasal cavity and oral cavity respectively, and obtain the airflow pressure at the set position in the airflow channel;

[0054] Adjust the gas flow in the nasal cavity and oral cavity, and distribute the ratio of nasal cavity and oral breathing flow to s...

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Abstract

The invention provides a human body breathing simulation device and method, and relates to the technical field of breathing simulation, the human body breathing simulation device comprises an upper respiratory tract model and air supply assemblies, an airflow channel is formed in the upper respiratory tract model, and the airflow channel is connected with the air supply assemblies corresponding to the nasal cavity part and the oral cavity part of the upper respiratory tract model; the air supply assembly is communicated with the airflow channel through the flow adjusting element so as to adjust airflow flow of the oral cavity part and the nasal cavity part of the upper respiratory tract model. A plurality of pressure measuring elements are arranged in the upper respiratory tract model along the airflow channel; aiming at the problem that an upper respiratory tract state does not accord with a real breathing state of a patient when being simulated at present, an upper respiratory tract model is established, an oral cavity part and a nasal cavity part are respectively communicated with an air supply assembly, and mouth breathing of the patient in different proportions is simulated by adjusting air supply flow of the nasal cavity part and the oral cavity part to fit the real breathing state of the patient; and the monitoring element is matched to obtain fluid mechanics characteristic changes of the upper respiratory tract so as to obtain data meeting analysis requirements.

Description

technical field [0001] The invention relates to the technical field of breathing simulation, in particular to a breathing apparatus for simulating human body and a simulation method. Background technique [0002] Using computational fluid dynamics methods to study the physical mechanism of the development and treatment of upper respiratory tract related diseases, and achieved effective progress. However, in the process of its research, when using particle image velocimetry technology and or pressure sensor technology to characterize the regional deposition characteristics of aerosol particles in the respiratory tract and the changes in respiratory hydrodynamic characteristics, a single flow is often used instead of the real patient's cycle. Sexual breathing, separating the processes of inhalation and exhalation, or giving ventilation only through the nasal passages. [0003] At present, in the analysis of obstructive sleep apnea syndrome, for patients who only use nasal bre...

Claims

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Application Information

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IPC IPC(8): G09B23/28
CPCG09B23/28Y02T90/00
Inventor 王京盈陈帅刘正刚雷丽刘东旭
Owner SHANDONG UNIV
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