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公开(公告)号：EP3970616A1
公开(公告)日：2022-03-23
申请号：EP21197580.0
申请日：2021-09-18
摘要： The subject of the invention is a device for detecting the QRS complex of an ECG electrocardiogram signal applicable in biomedical diagnostics.
The device has ABS_DIFF_SHORT_MODULE 2 and ABS_DIFF_LONG_MODULE 3, the inputs of which are connected to the ECG_MODULE 1 measuring module output, and the ABS_DIFF_SHORT_MODULE 2 module output is connected to one of the COMP 4 comparator inputs, and the output of the ABS_DIFF_LONG_MODULE 3 module is connected to the input of the PEAK_DETECTOR 5 detection module. The COMP 4 comparator output is connected to the PULSE GENERATOR 6 pulse generator input. The output of the PULSE GENERATOR 6 pulse generator is connected to the gating input of the PEAK_DETECTOR detection module and to the R_AMPLITUDE_MEMORY 8 memory recording module input and to the R_TIMESTAMP_MEMORY 9 memory recording module input. The output of the PEAK_DETECTOR 5 detection module is also connected to the R_AMPLITUDE_MEMORY 8 and R_TIMESTAMP_MEMORY 9 memory module inputs, and the R_AMPLITUDE_MEMORY 8 memory module output is connected to the TH_MODULE 7 module input. The TH_MODULE 7 module output is also connected to one of the COMP 4 comparator inputs.-
公开(公告)号：EP3970615A1
公开(公告)日：2022-03-23
申请号：EP21197579.2
申请日：2021-09-18
摘要： The subject of the invention is a method of detecting a QRS complex in an electrocardiogram (ECG) signal, which can be used in biomedical diagnostics. In the method according to the invention, an ABS_DIFF_SHORT signal generated on an output of an ABS_DIFF_SHORT_MODULE module, which is the difference of the current instantaneous value of the ECG signal provided by an ECG_MODULE measuring module, and the mean value of a SHORT_AVG of the ECG signal calculated for a time interval T_SHORT, are monitored using the COMP comparator. Then, the COMP comparator detects the moment when an ABS_DIFF_SHORT signal reaches a threshold TH value previously determined with a TH_MODULE module, and then, when the ABS_DIFF_SHORT signal reaches the threshold TH value, the countdown of a SEARCHING_WINDOW time window starts with a PULSE_GENERATOR pulse generator which has fixed-length for search for a R wave in the QRS complex of the ECG signal. In the next step, using a PEAK_DETECTOR detection module, the maximum value of the ABS_DIFF_LONG_MODULE module produced at its output is recorded during the SEARCHING_WINDOW time window of the ABS_DIFF_LONG signal, which is the difference of the current instantaneous value of the ECG signal and the average LONG_AVG value of the ECG signal calculated for a segment of a T_LONG time segment while the PEAK_DETECTOR detection module the moment of the detected maximum value of the ABS_DIFF_LONG signal is recorded during the SEARCHING_WINDOW time window. After that, the maximum value of the ABS_DIFF_LONG signal detected by the PEAK_DETECTOR detection module is stored by means of a R_AMPLITUDE_MEMORY memory module, which is considered to be the R-wave amplitude in the QRS complex.
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