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Method and device for detecting atrial fibrillation

A detection device and technology for atrial fibrillation, which is applied in diagnostic recording/measurement, medical science, sensors, etc., can solve the problem of low detection accuracy of atrial fibrillation, and achieve the effect of short detection time and high accuracy

Active Publication Date: 2014-03-05
SHENZHEN BIOCARE BIO MEDICAL EQUIP CO LTD
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Problems solved by technology

[0003] In order to solve the technical problem of low accuracy of atrial fibrillation detection in the prior art, the present invention provides a method and device for atrial fibrillation detection

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  • Method and device for detecting atrial fibrillation
  • Method and device for detecting atrial fibrillation
  • Method and device for detecting atrial fibrillation

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Embodiment Construction

[0046] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0047] figure 2 It is a schematic diagram of the ECG signal of the embodiment of the present invention. figure 2 The wave with the highest peak in the center is the R wave, which is the characteristic wave of the ECG signal, which can be used to detect physiological parameters such as heart rate and heart events such as PVC (premature ventricular contraction). The core idea of ​​the present invention is to use the R wave interval (that is, the RR interval) to detect atrial fibrillation, that is, to judge whether atrial fibrillation occurs by preprocessing and comparing the variance of the normal...

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Abstract

The invention provides a method and a device for detecting atrial fibrillation. The method includes the steps of S1, acquiring RR interval sequences of electrocardiogram signals in a time period; S2, pretreating the RR interval sequences; S3, performing normalization to the pretreated RR interval sequences; S4, calculating variance of the normalized RR interval sequences; and S5, comparing the variance with a threshold value, and determining occurrence of the atrial fibrillation in the time period if the variance is larger than the threshold value. Since the occurrence of the atrial fibrillation is determined by the aid of variance comparison after pretreatment and normalization, detecting time is short and accuracy is high.

Description

technical field [0001] The invention relates to the field of bioelectrical signal detection, in particular to a method and device for detecting atrial fibrillation. Background technique [0002] Atrial fibrillation, referred to as atrial fibrillation, is the most common persistent cardiac arrhythmia. The total incidence of atrial fibrillation is 0.4%. During atrial fibrillation, the frequency of atrial excitement reaches 300-600 beats / min. The heartbeat frequency is often fast and irregular, and sometimes it can reach 100-160 beats / min. Effective retraction function. Atrial fibrillation is generally detected by electrocardiographic signals. The current ECG (cardiogram) signals are collected through the body surface, and the collected signals are composite signals of ventricular electrical signals, atrial electrical signals and other electrical signals. Although there is a method of separating the atrial signal from the ventricular signal to detect atrial fibrillation, sin...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B5/046A61B5/0456A61B5/361A61B5/352
Inventor 王燕李德东邹健洪洁新
Owner SHENZHEN BIOCARE BIO MEDICAL EQUIP CO LTD