Non-invasive blood pressure detection method based on mixing of photoelectric green-light pulses and electrocardiogram

Abstract

The invention relates to the technical field of non-invasive blood pressure detection, in particular to a non-invasive blood pressure detection method based on mixing of photoelectric green-light pulses and an electrocardiogram. A multi-mode bioelectricity sensor is adopted in the non-invasive blood pressure detection method. The non-invasive blood pressure detection method includes the following steps that a conventional method based on photoelectric plethysmography (PPG) is adopted, the characteristic parameters in PPG signals are extracted, a measurement model of the blood pressure of the human body is built, blood pressure calibration is carried out, the calibration parameters closely related to the blood pressure value of the human body are obtained, and then the calibration parameters are used to carry out blood pressure measurement of pulse waves based on PPG waveform and ECG waveform; a multi-parameter blood-pressure estimation model is built with the wave velocity measurement method of the pulse waves based on the PPG waveform and the ECG waveform, and the final measured data is compared, analyzed and corrected. According to the non-invasive blood pressure detection method, as the mixing mode of the PPG waveform and the ECG waveform is used for detection, the detection accuracy is effectively increased; the non-invasive blood pressure detection method and the multi-mode bioelectricity sensor have the extremely-high hardware integrating degree, and good conditions are created for convenience and miniaturization of products.

Description

technical field [0001] The invention relates to the technical field of non-invasive blood pressure detection, in particular to a non-invasive blood pressure detection method based on the combination of photoelectric green light pulse and electrocardiogram. Background technique [0002] With the development of science and technology, non-invasive blood pressure detection is becoming more and more accurate, and due to its non-invasiveness, convenience and practicality, its application in daily measurement is also becoming more and more extensive. However, traditional blood pressure measurement is bound by the inflatable cuff of the sphygmomanometer and cannot achieve long-term continuous blood pressure monitoring. In order to get rid of such problems, many scholars have carried out research on non-invasive and continuous blood pressure monitoring based on PPG. The current research on non-invasive blood pressure monitoring based on PPG can be divided into three types: the blood...

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Problems solved by technology

[0003] Aiming at the deficiencies of the existing technology, the present invention provides a non-invasive blood pressure detection method based on the combination of photoelectric green light pulse and electrocardiogram. The non-invasive blood pressure measurement method and the pulse wave velocity measurement method based on PPG waveform and ECG waveform are used to measure non-invasive blood pressure. The method of using the two methods of measurement and then performing secondary calibration effectively improves the accuracy of measurement and avoids the current non-invasive blood pressure. Defects with low accuracy in measurement

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