Small-sized ECG acquisition device, ECG lead signal conversion method and detection method

Abstract

The invention discloses small electrocardiogram collection equipment, an electrocardiographic signal conversion method and a detection method. The small electrocardiogram collection equipment is simple in structure and built by adopting NORDIC NRF52832 and TI ADS1293. The method includes: using a wavelet decomposition method to decompose potential signals acquired by detection into different subspace signals; subjecting the subspace signals and a conversion coefficient to operation to convert the subspace signals; reconstructing all subspace signals after being converted to acquire final converted signals; comparing the converted signals acquired by the wavelet decomposition, conversion and reconstruction methods with standard lead signals. The electrocardiographic signal conversion method is high in correlation coefficient and small in standard mean square error, thereby being more accurate in conversion, and the problem that a user cannot detect by himself or herself caused by the fact that electrocardiogram monitoring equipment is inconvenient to carry is solved.

Description

technical field [0001] The invention relates to the technical field of medical equipment, in particular to a small electrocardiogram collection device, a method for converting a small electrocardiogram lead signal into a standard electrocardiogram lead signal, and a detection method. Background technique [0002] In the process of medical diagnosis, it is often necessary to analyze the lead waveform, such as electrocardiogram, electroencephalogram, electromyogram, etc., for pathological diagnosis and analysis. Lead, simply speaking, is to look at the change of heart current from different angles. By connecting two electrodes to any two points of the human body and connecting the electrocardiogram machine, the electrocardiogram can be traced. The commonly used lead is the standard lead. The electrical acquisition device collects the potential signal through two electrodes, and analyzes the difference between the potentials in the ECG acquisition device, so that the difference...

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Problems solved by technology

[0003] Existing acquisition equipment collects many electrodes, and the equipment is large in size, requiring patients to go to the hospital for special examinations. For small ECG acquisition equipment, linearization is generally used in the prior art to convert signals, so that The method is easily disturbed by noise, the obtained correlation coefficient is low, and the error is large, and the conversion effect is poor. The quality of the ECG signal directly affects the aesthetics, readability and analyzability of the waveform in the ECG report. The best waveform that meets the requirements of clinical diagnosis requires no or little interference

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