Filtering method of procoagulant type test tube sample

Abstract

The invention provides a method for filtering educts after a sample in a procoagulant type test tube is subjected to a centrifugal action. The technical scheme is realized by comprising the following steps of: a. collecting blood into the procoagulant type test tube by using a vacuum blood taking technology, wherein the procoagulant type test tube is internally provided with a filter screen; and b. enabling the procoagulant type test tube to be subjected to the centrifugal action so that a solution in the procoagulant type test tube forms a zone belt with different levels, wherein a blood corpuscle layer and a blood serum layer are positioned in the procoagulant type test tube from bottom to top, and the filter screen sinks on the blood corpuscle layer along a tube wall under the action of centrifugal force. The invention can effectively filter out floating fiber protein filaments and separation gel educts in the blood serum obtained after centrifugation, reduces the pollution of the fiber protein filaments and the separation gel educts on a sampling probe and a colorimetric cuvette, and ensures the detection result of a blood sample to be more accurate.

Description

Technical field: [0001] The invention provides a method for filtering the precipitate in the sample in the coagulation-promoting test tube after centrifugation. Background technique: [0002] At present, the coagulation-promoting test tubes on the market include coagulation-promoting tubes, ordinary tubes and separation rubber tubes, and the three test tubes have the same purpose. The coagulation accelerator is added to the coagulation accelerator tube to accelerate the coagulation of blood samples; there is no coagulant accelerator in the ordinary tube, and the blood sample coagulates relatively slowly; the separation rubber tube is added with coagulant accelerator and separation gel at the same time to quickly separate serum. [0003] After blood is drawn and centrifuged in procoagulant test tubes, there are more or less precipitates of fibrin filaments and separating gel floating in the serum. The main reasons are: [0004] 1. If you use coagulation-promoting tubes or or...

AI Technical Summary

Problems solved by technology

If it is partially blocked, the sampling volume is not enough, the ratio of serum and reagent will change, so the result will be inaccurate; if there is oil in the serum, the sampling needle will suck the oil into the cuvette, and the oil will be adsorbed on the cuvette, and after a long time The light transmittance of the cuvette will decrease. The automatic biochemical analyzer calculates the result by measuring the absorbance of the solution with a certain wavelength of light. If the light transmittance decreases, it will affect the absorbance measurement, thereby affecting the test result and causing blood sample detection. The result is inaccurate, affecting the doctor's diagnosis of the disease

[0007] After centrifugation of blood samples in procoagulant tubes and ordinary tubes, the red blood cells will dissolve after a certain period of time due to the absence of separation gel for blood cells and serum, resulting in hemolysis of the blood samples, which will affect the test results when the samples are re-examined. Not conducive to long-term preservation of specimens

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