What are the functions of ceramic blood separation valves in blood cell analyzers

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Ceramic blood separation valve, as a key component in modern blood cell analyzers, plays an irreplaceable role in the blood testing process.

1、 Accurate quantitative sampling
The ceramic blood valve has multiple small holes designed according to a certain volume inside. When blood enters, the valve body rotates from the suction hole to the discharge hole. At this time, blood cannot enter anymore, and a fixed amount of blood retained in the holes enters the dilution part of the instrument. This design can precisely control the volume of sampling, ensuring that the amount of blood entering the analyzer is consistent each time, thereby providing accurate basic data for subsequent detection and improving the reliability of detection results.

2、 Blood distribution
In a blood cell analyzer, multiple different detection items need to be performed on blood, such as white blood cell classification, red blood cell and platelet counts, etc. Ceramic blood valves can distribute blood to different detection channels according to preset proportions and paths. For example, the ceramic blood separation valve of some blood cell analyzers can distribute blood to multiple channels such as WBC channel, RBC channel, WOC channel, RET channel, and NRBC channel. Through this method, different components in the blood can be detected simultaneously, improving detection efficiency.

3、 Reduce cross contamination
The structural design and material properties of ceramic blood distribution valves enable them to effectively reduce cross contamination during the blood distribution process. Its high-purity alumina material has good chemical corrosion resistance and smooth surface finish, which makes it difficult for blood to remain when flowing inside the valve body, reducing the risk of cross contamination between different samples. In addition, the hole position design of the blood separation valve has been carefully arranged, and it is not allowed for the hole position to cross during the rotation process, further ensuring consistent sample quantification for each suction, avoiding problems such as sample contamination, dilution, and inaccurate quantification.

4、 Improve the stability and durability of the instrument
Ceramic materials have the characteristics of high hardness and excellent wear resistance. The Rockwell hardness of alumina ceramics is HRA80-90, second only to diamond, far exceeding the wear resistance of wear-resistant steel and stainless steel. This high hardness and wear resistance enable ceramic blood separation valves to maintain good performance during frequent rotation and blood flow, making them less prone to wear and tear, thereby extending the service life of the instrument and improving its stability and reliability.

5、 Cleaning and maintenance
After each test is completed, the ceramic blood valve can clean the entire channel with backwash reagent. The reasonable chamfer design is beneficial for filling the sample with the aperture of the diversion block, reducing the formation of eddy currents, and making the backwash cleaning cleaner. This efficient cleaning method can effectively remove residual blood samples and mixed liquids, prevent samples from accumulating in the valve body, and ensure the long-term stable operation of the instrument.

Ceramic blood separation valves play a crucial role in blood cell analyzers, providing accurate quantitative sampling, blood distribution, reducing cross contamination, improving instrument stability and durability, and facilitating cleaning and maintenance. These functions provide strong guarantees for the efficient and accurate detection of blood cell analyzers.

Brudeze Ceramics supplies and sells a wide range of high-quality quartz glass, including alumina ceramics, zirconia ceramics, silicon nitride ceramics, aluminum nitride ceramics, silicon carbide ceramics, boron carbide ceramics, bioceramics, machinable ceramics, etc. We can meet the customization requirements of various ceramic products.