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A method and device for measuring blood pressure volume with multiple samples according to the change of transmittance

A transmittance, multi-sample technology, applied in the field of blood pressure volume measurement, can solve the problems of expensive equipment, slow speed, and high data reliability, and achieve the effects of high precision, stable action and high precision

Inactive Publication Date: 2017-02-22
陈玉梅
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Blood pressure volume is an important parameter for the characterization of blood samples in medical testing, and is an important auxiliary judgment data in the measurement and utilization of blood viscosity. However, there are few methods and devices for one-time determination of blood pressure volume of multiple blood samples in the prior art. There are several ways to detect the blood pressure volume in the prior art: 1) visual detection, measure the amount of plasma and blood viscosity through visual detection, and then calculate it. This method is not only time-consuming and laborious, but also cannot guarantee accuracy; 2) Measure with a pressure sensor. This method is used in the CN102866083B document. In the blood sample, the pressure sensor of the rod head is used to sense the difference in pressure sensing into the plasma layer and the blood cell layer, and then the data is used to calculate the blood pressure volume. The equipment of the method is expensive, and only one sample can be measured at a time, and the speed is relatively slow; 3) In the measurement of other professional instruments, the blood pressure volume is roughly calculated by using the amount of plasma and blood cells obtained, such as blood viscosity, whole blood , or professional equipment for erythrocyte sedimentation rate. The problem with this method is that these instruments are often not designed for the purpose of blood pressure measurement. It is difficult to guarantee that the measured plasma and blood cell data are measured according to the same standard. For example, plasma may be measured according to Volume, or the volume value occupied in the chromatographic column, blood cells may be based on weight, the blood pressure volume measured by using these data, the data reliability is not necessarily high, and it cannot be used in clinical ways, or in experiments, data comparison and other occasions To ensure the accuracy of the data, but without enough accurate blood pressure volume data, it is impossible to guarantee the correct reference for the determination of general blood viscosity, such as the study of thrombus

Method used

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  • A method and device for measuring blood pressure volume with multiple samples according to the change of transmittance
  • A method and device for measuring blood pressure volume with multiple samples according to the change of transmittance
  • A method and device for measuring blood pressure volume with multiple samples according to the change of transmittance

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Experimental program
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Embodiment 1

[0042] The device used is a multi-sample blood pressure measurement device according to the change of transmittance, which includes a light source array, a detector array, a detection frame, a sample tube, a sample tube holder, a detection lifting system, a control module, and a PC;

[0043] Its light source array is composed of multiple monochromatic light sources arranged in a row, and each monochromatic light source includes two parts: the light source body and the mask;

[0044] The detection frame includes a detection array bracket, a side frame, and a light source array bracket that are sequentially connected together;

[0045] The detector array is composed of multiple detectors, and each monochromatic light source is directly opposite to a detector on a horizontal line across a sample tube; the light emitted by the monochromatic light source is aligned with the light receiving surface of the detector through the sample tube, The detector receives the preset monochromat...

Embodiment 2

[0067] The difference between the implementation of Example 2 and Example 1 is that the wavelength of the monochromatic light source used is 680nm, the added anticoagulant is sodium citrate lower than 1% by mass fraction, and no obvious leukocyte and platelet layer is formed in the blood sample , there was a sudden change in the transmittance of the blood cell layer at 5.5cm; the black marking line of the sample tube can be the preset 12cm, combined with the above values, the blood pressure product value of multiple blood samples to be measured can be obtained through simple calculation.

Embodiment 3

[0069] The difference between the implementation of Example 3 and Example 2 is that the wavelength of the monochromatic light source used is 670nm, the height of the sample tube is different, and the distance from the black marking line of the sample tube to the bottom can be 10cm, 12cm, and 14cm. The terminal generates three images in real time, and the data of the three sample tubes of 10cm, 12cm, and 14cm are divided into three images for display, which are used for comparative research and analysis respectively.

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Abstract

The invention relates to a blood pressure product measuring method and device, in particular to a multi-sample blood pressure product measuring method and device based on transmissivity changing. A scanning type transmissivity measuring method is used, transmissivity data of a whole sample tube from top to bottom are captured, the mutational site from the centrifuged plasma to the red blood cell is determined according to the transmissivity curve changing point sharply changing, accordingly, proportional calculation is carried out, and the blood pressure product is obtained. To cope with multiple sample pressures measured actually, a scheme for measuring multiple sample tubes at the same time is further provided, the blood pressure product values of the sample tubes are measured at the same time, and the actual application effect is absolutely superior to the effect of ordinary visual detection, pressure sensing detection excessively long in consumed time, and the like.

Description

technical field [0001] The invention relates to the field of measuring blood pressure volume, in particular to a device and method for measuring blood pressure volume according to changes in transmittance. Background technique [0002] Blood pressure volume is an important parameter for the characterization of blood samples in medical testing, and is an important auxiliary judgment data in the measurement and utilization of blood viscosity. However, there are few methods and devices for one-time determination of blood pressure volume of multiple blood samples in the prior art. There are several ways to detect the blood pressure volume in the prior art: 1) visual detection, measure the amount of plasma and blood viscosity through visual detection, and then calculate it. This method is not only time-consuming and laborious, but also cannot guarantee accuracy; 2) Measure with a pressure sensor. This method is used in the CN102866083B document. In the blood sample, the pressure ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N11/08
Inventor 陈玉梅韩希芹
Owner 陈玉梅