Method and device for inflating cuff of non-invasive blood pressure measurement equipment

Abstract

The invention provides a method and a device for inflating a cuff of non-invasive blood pressure measurement equipment. The method comprises the following steps: obtaining a plurality of pressure values of the cuff at a plurality of time points; calculating a first inflation rate parameter according to the plurality of pressure values, a plurality of target pressure values of the cuff at the plurality of time points and a plurality of inflation rate parameters corresponding to the time interval between every two adjacent time points in the plurality of time points; and inflating the cuff at a rate corresponding to the first inflation rate parameter from the last time point in the plurality of time points to a first time point after the plurality of time points. In such a way, when the target pressure values of the cuff at the different time points uniformly change, the uniform inflation to the cuff can be realized, thereby reducing or avoiding overpressure or too slow inflation. In addition, through the introduction of the plurality of pressure values, even though the pressure value of the cuff obtained at a certain time point has a large error, the rate of inflation to the cuff can still be accurately controlled.

Description

technical field [0001] The present application relates to non-invasive blood pressure measurement, and more particularly to a method and apparatus for inflating a cuff of a non-invasive blood pressure measurement device. Background technique [0002] Compared with invasive blood pressure measurement, non-invasive blood pressure measurement is an indirect method of measuring human blood pressure. At present, there are two main types of non-invasive blood pressure measurement methods. [0003] One is the auscultation measurement method based on auscultation technology, that is, the Korotkoff sound method. In the Korotkoff method, the cuff is tied to the subject's arm and the stethoscope is placed at the brachial artery. First inflate the cuff until the arterial blood flow is blocked, and then deflate. During the deflation process, a sound change will be produced. This sound is named Korotkoff sound. The method in which doctors determine blood pressure by listening to change...

AI Technical Summary

Problems solved by technology

The scheme disclosed in CN101103908A can only solve the overpressure problem by deflation when the cuff pressure exceeds the calibrated overvoltage protection value, but cannot avoid or reduce the occurrence of overpressure during the process of inflating the cuff. And it doesn't solve the problem of slow cuff inflation rate

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