Centrifugal Fixation Device for Blood Catheters

Abstract

The invention discloses a blood catheter centrifugal fixing device. The blood catheter centrifugal fixing device is characterized by consisting of a centrifugal fixator and a centrifugal cup sleeved on the centrifugal fixator; the centrifugal fixator comprises an upper cover and lower cover which are rotatably connected through a connecting shaft and tightly buckled through a fastening buckle; the upper cover and the cover define an accommodating cavity which is used for straight-line fixing of a blood catheter, and two ends of the accommodating cavity is open; and the outer walls of the upper cover and the lower cover form a wedging block and a hanging boss. The blood catheter centrifugal fixing device has the advantages that blood cells and blood plasma (serum) in the blood catheter can be separated quickly within 30 minutes, the quality of a detection sample and the accuracy of a detection result are ensured; the accommodating cavity fixes the blood catheter in a straight line mode, so that the blood catheter is not bent under the action of centrifugal force, and a problem of the blood cells are hanged on the wall of blood catheter under the action of centrifugal force is solved, and the blood cells and the blood plasma (serum) in the blood catheter can be fully separated, and a problem of secondary hemolysis of the sample stored at low temperature of minus 20 DEG C is solved.

Description

technical field [0001] The invention relates to a centrifugal fixing device, in particular to a centrifugal fixing device suitable for blood catheters, and belongs to the field of chemical experiment equipment. Background technique [0002] At present, the method of separating blood cells and plasma (serum) in the blood duct (blood pigtail) mainly relies on suspension and natural sedimentation. This method requires the blood duct to be exposed at room temperature for a long time, which will seriously affect the titer of the antibody. Or cause RNA degradation in blood samples, directly affecting the accuracy of the test results. At the same time, due to individual differences in blood samples, blood cells cannot be completely separated from plasma (serum). When the blood catheter is stored at a low temperature below minus 20°C, the blood cells will be destroyed by the low temperature, resulting in hemolysis of the blood catheter (blood pigtail) sample. The hemolyzed sample w...

AI Technical Summary

Problems solved by technology

[0002] At present, the method of separating blood cells and plasma (serum) in the blood duct (blood pigtail) mainly relies on suspension and natural sedimentation. This method requires the blood duct to be exposed at room temperature for a long time, which will seriously affect the titer of the antibody. Or cause RNA degradation in blood samples, directly affecting the accuracy of test results

At the same time, due to individual differences in blood samples, blood cells cannot be completely separated from plasma (serum). When the blood catheter is stored at a low temperature below minus 20°C, the blood cells will be destroyed by the low temperature, resulting in hemolysis of the blood catheter (blood pigtail) sample. The hemolyzed sample has an impact on the experimental results, thus affecting the accuracy of the experimental results

[0003] In addition, there are also people who use a single-tube bending centrifugation method to separate blood cells and plasma (serum) in the blood conduit (blood pigtail). The sampling experiment brings a lot of inconvenience, and because the curved centrifuge is used, it is very easy to form the phenomenon of blood cell hanging on the wall

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