Noninvasive continuous blood pressure measuring device

Abstract

The invention discloses a noninvasive continuous blood pressure measuring device. The noninvasive continuous blood pressure measuring device comprises a signal obtaining module, a signal preprocessing module and a signal processing module, wherein the signal obtaining module is used for collecting intensity signals of transmission light absorbed by the human body finger end; the signal preprocessing module is used for preprocessing the transmission light intensity signals to obtain blood volume wave (PPG) signals; the signal processing module receives the PPG signals, divides the PPG signals beat by beat, converts each beat of PPG signals into a frequency domain from a time domain, selects multiple sets of amplitudes and phases from the PPG signals converted into the frequency domain, transmits the multiple sets of selected amplitudes and phases into a preset neural network to be calculated so as to obtain blood pressure values and displays the values on an own display screen of the signal processing module. The technical problems that a pulse wave measuring method is insufficient in information quantity, and blood pressure measurement accuracy is low due to nonlinear problems are solved.

Description

technical field [0001] The present invention relates to a blood pressure measuring device, more specifically, the present invention relates to a non-invasive continuous blood pressure measuring device. Background technique [0002] Hypertension can cause heart disease, aortic aneurysm, stroke, peripheral vascular disease, chronic kidney disease, etc., and has a high risk of death. This year, its incidence has continued to rise, bringing serious economic burdens to the country and individuals. The effective way to manage hypertension is continuous monitoring, but mood swings, physical activity and sleep can all have an impact on blood pressure, and more than 50% of patients have not been effectively managed, so there is an urgent need for a non-invasive, rapid and continuous measurement of blood pressure devices to avoid serious complications. The photoelectric continuous blood pressure measurement method is low in cost and can continuously measure blood pressure. It is a me...

AI Technical Summary

Problems solved by technology

[0005] Another object of the present invention is to provide a non-invasive continuous blood pressure measurement device, which is based on a single sensor, and solves the blood pressure measurement accuracy caused by insufficient information and nonlinear problems in the pulse wave measurement method by analyzing the complete waveform beat by beat Not high technical problems, improve the accuracy of non-invasive blood pressure measurement, and the pressure on blood vessels is very small, comfortable to wear

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