Method and device for detecting sample absorption of sample analyzer

Abstract

The invention relates to the technical field of blood sample detection, and discloses a method and a device for detecting sample absorption of a sample analyzer, and the method comprises the followingsteps: a sampling needle enters a wbc pool under the movement of a movement assembly to discharge blood at the head section, and an instrument absorbs a sample; a collection instruction is issued toa hemoglobin concentration detection device, and a current liquid voltage signal AD value in the wbc pool is read; it is judged whether the AD value belongs to a preset range or not; and if the AD value is within the preset range, the detection instrument executes a detection time sequence and outputs a detection result. The instrument cost is not increased; whether an instrument normally sucks asample or not can be detected, judgment can be made in time, the called test time sequence is adjusted, unnecessary actions and reagent consumption are reduced, and the working efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of blood sample detection, in particular to a method and a device for sucking a sample by a detection sample analyzer. Background technique [0002] In recent years, my country's laboratory medicine has developed rapidly, and various blood analyzers have spread rapidly in the country. Hematology analyzers have gradually replaced microscopic examination as an important means of blood routine analysis, which not only improves the efficiency of test results , It also provides more reliable test indicators for the clinic, and plays an important role in the diagnosis and identification of diseases. The blood cell analyzer, hence the name Siyi, is an instrument for drawing blood samples for analysis, so to ensure the accuracy of the analysis results, the first step is to ensure that the instrument draws blood samples normally from the test tube containing the blood samples. [0003] At present, only a small number...

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Problems solved by technology

[0004] But this method has its limitations, such as figure 1 As shown, when sampling, the sampling syringe is pulled down, under the action of negative pressure, the sample is sucked into the sampling needle, and then passes through the transparent pipeline of the photoelectric sensor

However, because the sampling needle is made of stainless steel, it is opaque. If the photoelectric sensor is to work, the sample liquid level must be pulled to the transparent tube, beyond the sensor position

At present, the general volume of domestic puncture sampling needles is 30ul. If you want to pull it to the position of the photoelectric sensor, you need at least 40ul. However, the general detection mode of blood routine five-category plus CRP or SAA blood samples does not need to exceed 30ul, so this method unless used On comprehensive instruments with relatively large blood consumption, otherwise it is difficult to trigger the photoelectric sensor model

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