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Pulmonary ventilation function detection method and device based on flow-volume loop graph and medium

A technology for functional testing and lung ventilation, applied in the field of medical testing, can solve the problems of inability to completely exclude cross-infection, inability to identify left lung or right lung function decline, inability to identify upper lung, etc., to achieve suitable popularization, no cross-infection, Experience relaxing effects

Active Publication Date: 2021-05-28
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing spirometer has certain limitations in detecting lung function. On the one hand, it can only detect changes in lung function but cannot identify whether the function of the left lung or the right lung has declined, let alone identify whether the function of the upper lung or the lower lung has decreased; On the one hand, in practical applications, the lung function instrument needs to exhale and inhale through the detection tube during the detection process. Although there are filters, the possibility of cross-infection cannot be completely ruled out.

Method used

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  • Pulmonary ventilation function detection method and device based on flow-volume loop graph and medium
  • Pulmonary ventilation function detection method and device based on flow-volume loop graph and medium
  • Pulmonary ventilation function detection method and device based on flow-volume loop graph and medium

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Embodiment 1

[0040]referencefigure 1 As shown, this embodiment provides a method of detecting a pulmonary ventilation based on a flow-volume ring diagram, including:

[0041]Step S1, obtain the electrical impedance signal to be tested, the electrical resistance signal includes four regions of the upper left (LU zone), the upper right (RU region), the lower left (LL area), and the left (LL area), and the lower right (RL area) in the upper right (RU region), the left (LL region) and the left (LL area) Electrical impedance signal ZLu (n), zRU (n), zLL (n) and zRL (n), where n is a sample sample number.

[0042]When the resistance signal is taken as the respiratory action required to be tested in accordance with the respiratory action required for the clinical lung function, the flow rate-flow vendor test is tested, and the biological resistance measurement system for the four-pair of composite electrodes attached to the chest surface designation is measured. .

[0043]In one embodimentfigure 2 The electrode...

Embodiment 2

[0068]This embodiment provides an electronic device comprising one or more processors, a memory, and one or more programs stored in a memory, the one or more programs comprising a chest impedance measurement for performing as in Example 1. The instruction of the pulmonary ventilation function detecting method based on the flow-volume loop diagram.

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Abstract

The invention relates to a pulmonary ventilation function detection method and device based on a flow-volume loop graph and a medium. The detection method comprises the following steps of obtaining an electrical impedance signal of a to-be-detected object; performing amplitude solving processing on the electrical impedance signals to obtain a thoracic impedance amplitude signal sequence reflecting the ventilation conditions of the four areas; fusing the thoracic impedance amplitude signal sequences of the four areas to obtain a thoracic impedance characteristic value sequence; converting the thoracic impedance characteristic value sequence into a lung volume sequence, performing digital differential processing on the lung volume sequence to obtain a lung ventilation flow sequence, and generating a total flow-volume loop graph and a flow-volume loop graph of each area; and obtaining a total pulmonary ventilation function and a pulmonary ventilation function detection result of each region based on the flow-volume loop graph. Compared with the prior art, the method has the advantages of simple measurement process, easiness in implementation, no cross infection risk, accuracy, reliability, capability of being popularized and applied and the like.

Description

Technical field[0001]The present invention relates to a medical detection method, and more particularly to a pulmonary ventilation function detecting method, apparatus, and medium based on a flow-volume loop.Background technique[0002]Chronic obstructive pulmonary Disease, COPD is a common respiratory chronic disease, which has become a global important public health issue. Currently, the use of pulmonary measuring is a gold standard for COPD diagnosis, which is important for early detection of lungs, airway lesions, and evaluating the severity and prognosis assessment of diseases. In the lung function test, the diagnostic criteria for COPD is, after inhalation of bronchure diastolic agents, if one second rate, the first second force exhalation volume (FEV1) / force pulmonary capacity (FVC), less than 70%, and FEV1 Percentage of expected value<80%, indicating that there is a limited airflow. However, the existing lung function detects the lung function has certain limitations. On ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/08A61B5/085A61B5/053A61B5/087A61B5/091
CPCA61B5/0809A61B5/0816A61B5/085A61B5/087A61B5/091A61B5/0536A61B5/72
Inventor 马艺馨葛浩刘恩康张明珠白子轩
Owner SHANGHAI JIAO TONG UNIV
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