Blood pressure measuring method and equipment

Abstract

The embodiment of the invention provides a blood pressure measuring method and equipment. The method comprises the following steps of obtaining a pulse signal, if the phase amplitude is greater than the previous pulse amplitude and the next pulse amplitude, increasing pressure value corresponding to the pulse amplitude by a first allowance to obtain a first predicted inflation end pressure value,continuing detecting the change of the pulse amplitude, if when the ratio of the current pulse amplitude to the pulse amplitude is smaller than a first threshold, using pressure value corresponding tothe current pulse amplitude as a second predicted inflation end pressure value, and using the first predicted inflation end pressure value or the second predicted inflation end pressure value as a final inflation end pressure value; and according to the final inflation end pressure value, setting an initial pulse width value, according to the pulse amplitude which is detected in a real time manner, adjusting the size of the initial pulse width value, and realizing uniform velocity liner deflation. The blood pressure measuring method and equipment provided by the embodiment of the invention can obtain accurate blood pressure measurement value.

Description

Technical field [0001] The embodiment of the present invention relates to the field of detection technology, in particular to a blood pressure measurement method and device. Background technique [0002] Epidemiological investigations and large-scale prospective studies have shown that hypertension is an independent risk factor for cardiovascular disease. The use of electronic blood pressure monitors for self-service daily blood pressure monitoring 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 blood pressure monitoring. The hardware part mainly includes amplifying circuits for cuff pressure and pressure pulse signals, overpressure protection and digital circuits, and a vent valve. Most deflation valves use non-continuous deflation valves. At present, most of them use the traditional step deflation method. Each time the ste...

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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

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