Method for identifying QRS waves in heart pacemaker patient electrocardiogram

A technology of cardiac pacemaker and identification method, which is applied in the fields of sensors, medical science, diagnostic recording/measurement, etc., and can solve the problems such as the inability of the airbag to flush and exhaust normally, and the interference of the pacing signal pulse.

Inactive Publication Date: 2017-09-19
CHONGQING PSK HEALTH SCI TECH DEV
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AI Technical Summary

Problems solved by technology

[0005] (1) The ECG simulator MPS450 simulates the ECG signal of the pacemaker wave type as NON-CAPTURE, and uses this signal as the ECG input signal in the ECP device. During the operation of the ECP device, the airbag cannot be flushed and exhausted normally.
[0006] (2) The ECG simulator MPS450 simulates the ECG signal of the pacemaker wave type as AV SEQUENTIAL, and uses this signal as the ECG input signal in the ECP device. During the operation of the ECP device, the airbag cannot be flushed and exhausted normally.
[0007] (3) The ECG simulator MPS450 simulates the ECG signal of the pacemaker wave type ASYNC 75BPM, and uses this signal as the ECG input signal in the ECP device. During the operation of the ECP device, the airbag cannot be flushed and exhausted normally.
The reason for this false detection is the interference of the pace signal pulse

Method used

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Embodiment Construction

[0016] Below in conjunction with embodiment the present invention will be further described:

[0017] A method for identifying QRS waves in the electrocardiogram of a cardiac pacemaker patient, carried out according to the following steps:

[0018] Step 1. Sampling for N seconds, N>0, and obtain the maximum slope slope_down_max of the descending branch and slope_up_max of the ascending branch in the waveform;

[0019] Step 2. The 0Ecg_Wave_RecordInfo array records the maximum slope_up_max of the ascending branch of each wave, the maximum slope_down_max of the descending branch, the maximum amplitude amp, the position pos of the maximum amplitude, the sequence number seq of this wave and the interval time between the appearance of this wave interval; determine the wave with the maximum slope of the descending branch. The basis for repeated appearance is to satisfy Ecg_Wave_RecordInfo[wavecounter].slope_down_max>2)+(slope_down_max>>3)), Ecg_Wave_RecordInfo[wavecounter].slope_up_...

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Abstract

The invention discloses a method for identifying QRS waves in a heart pacemaker patient electrocardiogram, and belongs to the field of medical diagnosis. By finding the relation between slope characteristics of each wave, the maximum value characteristic, occurrence periodic characteristics and adjacent wave, the characteristics of the QRS waves are analyzed and identified, and the QRS waves and occurrence positions of the QRS waves are captured according to the characteristics. The method is capable of correctly identifying the QRS waves and the positions of the QRS waves from common electrocardiowaves, NON-CAPTURE type pacemaking electrocardiowaves, AV SEQUENTIAL type pacemaking electrocardiowaves and ASYNC 75BPM type pacemaking electrocardiowaves.

Description

technical field [0001] The invention belongs to the field of electrocardiogram waveform detection, in particular to a QRS wave recognition method. Background technique [0002] Heart disease is a common multiple chronic disease, and it has become a major disease that threatens human life due to its high risk of onset. Therefore, the prevention and diagnosis of heart disease has become the main problem facing the medical field today. One of the main techniques for diagnosing heart disease is electrocardiogram-ECG. Electrocardiogram is a science that records and interprets the body surface potential difference generated during cardiac excitation. Because the method of electrocardiogram is simple, the diagnosis is reliable, and there is no harm to the patient. The advantages of the present become the main diagnostic technology. The QRS wave group detection is the primary problem in ECG waveform detection. Reliable QRS wave group detection is the most important basis for diagn...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/0402A61B5/0452
CPCA61B5/7235A61B5/7282A61B5/316A61B5/318A61B5/349
Inventor 代贞勇唐兴明
Owner CHONGQING PSK HEALTH SCI TECH DEV
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