Continuous blood pressure measuring device based on pulse waves

Abstract

The invention discloses a continuous blood pressure measuring device based on pulse waves. The continuous blood pressure measuring device comprises a pulse wave signal collecting module, a pulse wave signal denoising module, a pulse wave waveform extraction module, a pulse wave feature parameter collecting module and a blood pressure prediction module. Errors during the estimation of diastolic pressure can be reduced by adopting a dicrotic wave feature parameter method; during the denoising processing, the baseline drift and the high-frequency noise are removed, so that the interference is effectively reduced; the pulse wave time domain features can be further obtained only through collecting one path of pulse wave signals and only through detecting the starting point of the pulse waves; the feature obtaining method is simple; the detection speed is high; the calculation quantity is small; and the waveform quality is high. A blood pressure regression model can be conveniently built; the systolic pressure and the diastolic pressure can be well predicted; the prediction errors are small; and the important basis can be provided for clinic diagnosis and family health care.

Description

technical field [0001] The invention relates to a blood pressure measuring device, in particular to a pulse wave-based continuous blood pressure measuring device. Background technique [0002] Blood pressure (BP) is the lateral pressure of the blood in the blood vessel on the blood vessel wall per unit area. As an important physiological parameter reflecting the function of the human cardiovascular system, it is an important basis for clinical diagnosis and family health care, including systolic blood pressure (SBP) and diastolic blood pressure. (DBP). Effective measurement of blood pressure is of great significance to the prevention and treatment of cardiovascular diseases. Continuous blood pressure measurement can measure blood pressure in each cardiac cycle, and can monitor changes in blood pressure in real time. However, the current clinical blood pressure measurement is still mainly intermittent measurement, that is, only a single measurement can be performed at a cer...

AI Technical Summary

Problems solved by technology

When using this method to measure blood pressure, it is necessary to calculate multiple pulse wave characteristic parameters by detecting more pulse wave feature points, which requires a large amount of calculation, and the quality of the pulse wave waveform will directly affect the final measurement accuracy

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