blood pressure measuring equipment

Abstract

The present invention provides a blood pressure measuring device, comprising: a final inflation cut-off pressure value acquisition module, which acquires a pulse signal, and if a pulse amplitude is greater than the previous pulse amplitude and the next pulse amplitude, then the pulse amplitude corresponding to the The pressure value is increased by the first margin to obtain the first predicted inflation cut-off pressure value, and continue to detect changes in the pulse amplitude. If the ratio of the current pulse amplitude to a pulse amplitude is less than the first threshold, the current pulse amplitude corresponds to the The pressure value is used as the second predicted inflation cut-off pressure value, and the first predicted inflation cut-off pressure value or the second predicted inflation cut-off pressure value is used as the final inflation cut-off pressure value; the uniform linear deflation adjustment module is used to adjust the final inflation cut-off pressure value according to , set the initial pulse width modulation value, adjust the size of the initial pulse width modulation value according to the pulse amplitude detected in real time, and realize uniform linear deflation. The blood pressure measurement device provided by the embodiments of the present invention can obtain more accurate blood pressure measurement values.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of detection, and in particular, to a method and device for measuring blood pressure. Background technique [0002] Epidemiological surveys and large-scale prospective studies have shown that hypertension is an independent risk factor for cardiovascular diseases, and self-service daily blood pressure monitoring with electronic sphygmomanometers is an important way to prevent serious cardiovascular events. The oscillation method of non-invasive blood pressure monitoring mainly relies on the overall coordination of hardware and software to complete the blood pressure monitoring. The hardware part mainly includes the cuff pressure and pressure pulse signal amplification circuit, overvoltage protection and digital circuit, and air release valve. Most of the deflation valves use non-continuous deflation valves. At present, most of them adopt the traditional step deflation method. Each time t...

AI Technical Summary

Problems solved by technology

When the patient's blood pressure is low, it is also inflated to the specified value, and the deflation process is slow. If the inflation pressure is too high, the patient's arm will be compressed and painful; when the patient is a hypertensive patient, after the specified pressure is charged, a second When the pressurization and supplementary pressure are insufficient, even three pressurizations are required, which will cause the inflation process to be too long, and will also cause the deflation measurement time to be too long, causing the patient's arm to feel oppressed and painful

Images