Non-invasive blood pressure measuring device

A technology of air pressure and detection head, which is applied in the measurement of pulse rate/heart rate, diagnostic recording/measurement, blood vessel evaluation, etc. It can solve the problems of mercury drop height error, visual error, and uneven response, so as to achieve accurate diastolic blood pressure and avoid The effect of unavoidable possible errors
CN101912259BActive Publication Date: 2012-10-10SHENZHEN RAYCOME HEALTH TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHENZHEN RAYCOME HEALTH TECH
Publication Date
2012-10-10

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Abstract

The invention provides a non-invasive blood pressure measuring device and a measuring method thereof. In the device, a main machine is provided with a microprocessor connected with an air pressure sensor; a pressurizing band is an inflatable sac-shaped band with air tubes, is connected with the air pressure sensor, is tied on a limb where the flowing of arterial blood of a measured person can be completely blocked after inflation, and is provided with a pulse wave detector which is fixed at a downstream position of the pressurizing band in the arterial blood flowing direction; and the microprocessor processes a plurality of pulse wave amplitudes detected by the pulse wave detector in the gradual increasing process from zero and corresponding pressurizing band pressure thereof in real timeso as to determine the systolic pressure, and processes a plurality of pulse delay time in the process from variation to relative invariant of the delay time between the pulse wave and the corresponding pressure AC signal in real time so as to determine the diastolic pressure. The device converts discontinuous events to continuous measurement, avoids unavoidable possible errors caused by the discontinuity of cardiac impulse, and can accurately and non-invasively measure the systolic pressure and the diastolic pressure in blood pressure.
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Description

technical field

[0001] The invention relates to blood pressure measurement, in particular to a noninvasive blood pressure measurement device and a measurement method thereof. Background technique

[0002] Blood pressure is one of the most important medical basic parameters of the human body. Non-invasive blood pressure measurement is the most commonly used blood pressure inspection method, including the Korotkoff sound auscultation method used by mercury sphygmomanometers and the oscillometric method used by most electronic sphygmomanometers. The Korotkoff sound auscultation method is simple to measure. The disadvantage is that different people may measure different results, sometimes with large differences. The main reasons are: 1) The heart beat is discontinuous, which leads to the unavoidable drop in the height of mercury between two heartbeats. 2) Korotkoff sounds may not be produced when the blood flow is subtle, resulting in the inability to distinguish the appearance...

Claims

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