Closed automatic detection device for blood rheology measurement

Abstract

The invention discloses a closed automatic detection device for blood rheology measurement, which includes a test tube rack support plate, a barcode scanner, a test tube rack moving device, a blood sample automatic transmission device for a test tube rack position monitor, and a sampling / measurement needle assembly , needle-feeding driving device, quantitative sampling controller, upper sphere, heating assembly, cleaning device, sampling and measuring system for station conversion driving device, including elastic clamping device, elastic clamping device rotation drive motor, up and down moving device, horizontal movement The mixing device of the device, as well as the air pump, single-chip microcomputer, etc., can realize the automatic transmission of blood samples without opening the cover for blood rheology measurement, the automatic upside-down mixing device of blood samples, automatic quantitative sampling, automatic measurement of blood samples, automatic cleaning The measuring device can automatically identify and record, and realize the automatic measurement of blood viscosity in a fully enclosed state, which can not only avoid cross-contamination, but also reduce the labor intensity of the staff, improve the measurement effect, and shorten the measurement time.

Description

technical field [0001] The invention relates to the field of blood measuring devices, in particular to a closed automatic detection device for blood rheology measurement related to blood viscosity measurement. Background technique [0002] In clinical medicine, blood viscosity is the most important index to characterize the rheological properties of blood and its changing rules under physiological and pathological conditions. It includes whole blood viscosity and plasma viscosity, usually referred to as blood rheology. The determination of blood viscosity parameters is of great significance to understand the fluidity of blood and its changing rules under physiological and pathological conditions, and to diagnose and prevent diseases caused by abnormal blood viscosity. There are many types of instruments for measuring blood viscosity, among which capillary viscometers with simple operation, fast measurement and low price are more commonly used. The most commonly used capilla...

AI Technical Summary

Problems solved by technology

It can be seen that the traditional device has many disadvantages: First, the blood sample must be drawn from an open test tube

This device for quickly measuring blood viscosity can shorten the measurement and cleaning routes, and can carry out closed sample injection, which can avoid cross-contamination. However, since vacuum blood collection tubes need to be installed batch by batch on the tray, The vacuum blood collection tubes are manually inserted into the tray holes of the cleaning mechanism one by one to fix the shutdown, and the vacuum blood collection tubes are removed one by one when the machine is shut down, which cannot realize the uninterrupted replacement of the vacuum blood collection tubes when the device is working, which affects the detection efficiency. At the same time, the staff must Sampling registration with a high degree of concentration to prevent mistakes in recording confusion

At the same time, because a batch of blood samples in vacuum blood collection tubes are mixed on the tray at the same time, when the mixed blood samples are sampled and measured one by one, there is a queuing waiting period, and during this waiting time, the blood samples that have been mixed It will precipitate and coagulate again, affecting the accuracy of measurement

Moreover, the tray with an inclination angle of 45 degrees is rotated around the axis for mixing. The maximum axial angle change of the vacuum blood collection tube with the rotation of the tray is only 90 degrees. The vacuum blood collection tube can only be mixed within this range, and it cannot exceed 90 degrees. If you want to improve the mixing effect of blood samples, you must prolong the mixing time, which will prolong the time for measuring blood viscosity and affect the detection efficiency.

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