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Method and apparatus for predicting ventricular fibrillation

A technology for ventricular fibrillation and predictive devices, applied in diagnostic recording/measurement, medical science, sensors, etc.

Active Publication Date: 2011-05-18
FUDAN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, these methods are not yet effective for short-term prediction of ventricular fibrillation

Method used

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  • Method and apparatus for predicting ventricular fibrillation
  • Method and apparatus for predicting ventricular fibrillation
  • Method and apparatus for predicting ventricular fibrillation

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Experimental program
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Embodiment Construction

[0028] The ventricular fibrillation prediction device proposed by the present invention includes:

[0029] The data acquisition module is used to obtain the ECG signal with a sampling frequency of 250 Hz and a time length of 5 beats;

[0030] The filter module is used to filter out the power frequency and EMG interference of the ECG signal and eliminate the baseline drift;

[0031] A signal conversion module, which converts the ECG signal of each beat after preprocessing into a network;

[0032] Subgraph analysis module, which first calculates the difference between the subgraph C and the percentage of subgraph A of the network generated by each beat of the five-beat continuous ECG signal , and calculate the average ;if , the ventricular fibrillation predictor sounds an alarm that ventricular fibrillation is about to occur.

[0033] Execution steps are as follows when the present invention works:

[0034] A, through the data acquisition module, it is 250Hz that the sam...

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Abstract

The invention belongs to the technical field of medical equipment, and in particular relates to a method and apparatus for predicting ventricular fibrillation. The method comprises the steps of: collecting electrocardiosignals of continuous five beats; pre-treating the signals; converting the electrocardiosignal of each beat into a network via a visible graph algorithm; calculating the percentage difference between a sub-graph C and a sub-graph A in the network corresponding to the electrocardiosignal of each beat and calculating the average value of the differences of the electrocardiosignals of five beats; and if the average value is smaller than 5%, sending an alarm through a ventricular fibrillation predictor and considering that ventricular fibrillation will occur. The device comprises a data collection module, a filter module, a signal conversion module and a sub-graph analyzing module. The method and the apparatus, which are provided by the invention, can be applied to instruments such as a monitor, a defibrillator, an implanted defibrillator and the like so as to improve diagnosis and treatment of ventricular fibrillation with the type of products.

Description

technical field [0001] The invention belongs to the technical field of medical equipment, and in particular relates to a method and a device for predicting ventricular fibrillation. Background technique [0002] The epidemiological survey of sudden cardiac death in 2009 found that the incidence of sudden cardiac death (SCD) in China was 41.84 cases per 100,000 people. If calculated with a population of 1.3 billion, the number of sudden cardiac deaths in my country is as high as 544,000 cases per year, ranking first in the world The head of the nations. Therefore, it is very important to accurately identify high-risk groups for sudden cardiac death, and it is a challenging medical problem. Ventricular fibrillation is the main mechanism leading to sudden cardiac death and is the result of the development of various malignant arrhythmias. In ventricular fibrillation, the ventricular rate exceeds 300 beats / min, arrhythmia, QRS width, shape and amplitude vary greatly, the myocar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/046A61B5/361
Inventor 李翔董昭
Owner FUDAN UNIV
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