Method for realizing noninvasive blood pressure measurement based on Goertzel algorithm

A technology of blood pressure measurement and blood pressure measurement device, which is applied in vascular assessment, cardiac catheterization, etc., can solve the problems of slow measurement speed, poor anti-interference ability, and susceptibility to movement, etc., and achieve the effect of fast measurement and fast measurement speed
CN102488504AInactive Publication Date: 2012-06-13深圳市杰纳瑞医疗仪器股份有限公司
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
深圳市杰纳瑞医疗仪器股份有限公司
Publication Date
2012-06-13
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a method for realizing noninvasive blood pressure measurement based on Goertzel algorithm. In an inflating process of a blood pressure cuff, by the aid of the Goertzel algorithm, a plurality of corresponding values of energy strength P are calculated according to the frequency fi of each of sample points, the values of the energy strength P are connected to form a fluctuated curve according to a time sequence, the amount of the sample points is M, so that the amount of the fluctuated curves is M, and a perfect fluctuated curve is checked from the M fluctuated curves; and average pressure, contraction pressure and expansion pressure are calculated in the perfect fluctuated curve. In the inflating process of the blood pressure cuff, noninvasive blood pressure measurement is realized, and the method further has the advantages of high interference resistance and fast measurement speed.
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Description

technical field

[0001] The invention relates to the field of medical electronic instruments, in particular to an electronic system non-invasive blood pressure measurement technology. Background technique

[0002] At present, measuring blood pressure with the oscillation method is a method widely used in various electronic sphygmomanometers in clinical practice.

[0003] The principle of the oscillation method to measure blood pressure:

[0004] Use the cuff to block the arterial blood flow, detect the envelope of the pulsating oscillation wave originating from the vessel wall during the slow deflation process, and find out the inherent relationship between the envelope and arterial blood pressure, and then achieve the purpose of measuring blood pressure. When measuring blood pressure, while the pressure in the air cuff drops due to deflation, there is also a regular oscillation, called pulse wave, whose waveform is as follows figure 1 shown. It can be seen from the figure...

Claims

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