Sample absorbing device capable of automatically blending blood sample

Abstract

The utility model relates to a sample suction device for automatically mixing and homogenizing blood samples used in conjunction with a hemorheology measuring instrument. It includes a controller, a sampling mechanism controlled by the controller, and a sampling control mechanism. The sampling mechanism is fixed on the horizontal shaft of the sampling control mechanism; it is characterized in that a sample mixing mechanism is arranged directly above the sampling mechanism, and the sample mixing mechanism includes a drive The motor and the test tube rack, the test tube rack is vertically installed on the rotating shaft of the driving motor, the test tube rack is provided with a test tube placement hole that can be vertically downward corresponding to the sampling mechanism during the rotation with the rotating shaft, and the test tube placement hole A test tube clamp is arranged inside, and the driving motor is connected with the controller through a signal line. Due to the adoption of the above technical solution, the present invention can automatically and fully mix multiple blood samples to be tested at the same time under the premise of avoiding damage to blood components, which significantly shortens the time for mixing the blood samples to be tested, and has a high degree of automation.

Description

technical field [0001] The invention relates to medical equipment, in particular to a sample suction device for automatically mixing blood samples used in conjunction with a blood rheometer. Background technique [0002] Due to the strong aggregation and specificity of red blood cells, the blood leaving the human body will naturally settle and stratify after being left for a long time. Therefore, when a blood sample is sucked and measured by a medical measuring device, the blood sample must be fully mixed first, so as to ensure the accuracy of the measurement result. At present, people usually use a hemorrheometer to measure blood. Before measuring the blood sample, it first mixes the blood sample through the corresponding blood sample mixing and its control mechanism. It uses the method of aspirating and spitting the sample, that is, using the aspirating needle to insert the bottom of the test tube containing the blood sample, and repeatedly sucking and spitting the blood ...

AI Technical Summary

Problems solved by technology

Using the above method to mix blood samples has the disadvantages of long mixing time, insufficient uniformity and sufficient mixing, and it is easy to cause some red blood cells to be damaged during the mixing process, resulting in large errors in the measurement data of the hemorheology measuring instrument, which makes the final measurement results Inaccurate

Of course, there are also methods of manually shaking the blood sample to be tested. Although this method can fully shake the blood sample to be tested, it will not damage the red blood cells, but it is inefficient and not easy to automate.

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