Thoracic cavity electrical impedance simulation method based on human tissue conductivity refined modeling design

A simulation method, human tissue technology, applied in CAD circuit design, medical science, diagnosis, etc., can solve problems such as high detection cost, high risk of cross-infection, and single-mode measurement

Active Publication Date: 2021-01-15
CHONGQING UNIV
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Problems solved by technology

[0007] In view of this, the purpose of the present invention is to provide a thoracic electrical impedance simulation method based on refined modeling and design of human tissue conductivity, aiming at the high detection cost, high risk of cross-infection and single mode of existing lung function detection technology. In order to solve problems such as chemical measurement, build a thoracic electrical impedance ci

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  • Thoracic cavity electrical impedance simulation method based on human tissue conductivity refined modeling design
  • Thoracic cavity electrical impedance simulation method based on human tissue conductivity refined modeling design
  • Thoracic cavity electrical impedance simulation method based on human tissue conductivity refined modeling design

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[0096] Embodiments of the present invention are described below through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the illustrations provided in the following embodiments are only schematically illustrating the basic idea of ​​the present invention, and the following embodiments and the features in the embodiments can be combined with each other under the condition of no conflict.

[0097] see Figure 1 to Figure 10 , figure 1 It is a schematic diagram of the thoracic electrical impedance simulation method based on the fine modeling of human tissue ...

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Abstract

The invention relates to a thoracic cavity electrical impedance simulation method based on human tissue conductivity refined modeling design, and belongs to the technical field of medical detection. According to the method, classification modeling is performed according to cell composition, components and conductivity of each tissue of the thoracic cavity, simulation excitation source parameters and electromagnetic field constraint conditions, field domain equations and boundary conditions of each region are determined, a thoracic cavity mathematical physical model is constructed in a partitioned manner, and then a finite element simulation method is utilized to realize construction of a thoracic cavity simulation model. Simulation experiment analysis and various parameter tests are carried out, and the change relation between lung air parameters and thoracic cavity electrical impedance simulation values is determined. According to the invention, the detection situation of the actual thoracic cavity electrical impedance can be well simulated, the electrical characteristics and various parameters of each part of the thoracic cavity can be effectively reflected according to the excitation signal, a theoretical basis is provided for subsequent related thoracic cavity electrical impedance measurement and lung function detection, namely lung respiratory capacity detection experiments, and the invention has high reference and guidance values.

Description

technical field [0001] The invention belongs to the technical field of medical detection, and relates to a chest cavity electrical impedance simulation method based on fine modeling and design of human tissue conductivity. Background technique [0002] In the prior art, there are two main methods for common pulmonary function testing schemes: the first is the volumetric measurement type, the instrument measures the gas volume change of the buoy or piston cavity connected to the respiratory tract of the tester, so as to realize the measurement of the lung gas volume. The detection of the change rule; the second is the flow measurement type, the instrument measures the gas flow through a certain cross-sectional area, and then integrates the time to obtain the volume of the breathing gas, so as to realize the detection of the change of the lung gas volume. [0003] Both of the above two detection methods have some problems that cannot be ignored: [0004] 1) When a volumetri...

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Application Information

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IPC IPC(8): G06F30/30A61B5/053
CPCG06F30/30A61B5/053
Inventor 汪金刚闫阳天张一鸣
Owner CHONGQING UNIV
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