ABO, RhD blood typing reagent card, preparation method thereof

Abstract

The invention discloses an ABO, RhD blood typing reagent card, a preparation method thereof and an antibody diluting solution adopted in the preparation method. In the preparation method, the pH value of a system is maintained by virtue of a sodium phosphate buffer system, tween 80 is added, the component of a gel preservation solution is removed, and proper lubrication capability can be obtained when erythrocyte passes through the gap of gel, so that unaggregated erythrocytes have the capability of passing through gaps of gel particles, and aggregated erythrocytes cannot pass; nonspecific adsorption of the gel is eliminated by adding bovine serum albumin to protect the titer of the antibody; microbial contamination is reduced by adopting sodium azide, the preservation period of the product is prolonged, and blood typing error caused by microbial contamination is eliminated; and the gel is screened in the preparation process, and the gel raw material which is obtained by virtue of screening is required to be swelled, wet heat sterilization and cleaning, so that microbes contained in the gel are eliminated, the components of the gel preservation solution and broken gel particles are eliminated, and the product quality is greatly improved.

Description

technical field [0001] The invention relates to the field of blood typing test, in particular to an ABO and RhD blood typing reagent card, a preparation method thereof and an antibody diluent used therein. Background technique [0002] In clinical treatment, blood transfusion is an important means and measure to save the lives of the wounded and sick. In order to ensure the safety of blood transfusion, it is very important to choose reliable experimental methods and adopt experimental techniques with high specificity and sensitivity. [0003] Blood type is one of the main characteristics of human blood, expressing the genetic traits of various blood component antigens, among which ABO blood type and RhD blood type have become important blood group systems in blood transfusion and organ transplantation. [0004] As early as 1907, Hoktoen first proposed the importance of blood group testing for blood transfusion therapy. In 1908, Ottenberg et al. further proposed the concept ...

AI Technical Summary

Problems solved by technology

[0017] At home and abroad, some manufacturers have already produced ABO / RhD blood typing detection reagent cards for ABO blood typing and RhD typing according to the above method, but there are two shortcomings: on the one hand, the gel used is dextran gel , the particles are larger, and the gaps between the gels are larger, which reduces the sensitivity of ABO blood typing; on the other hand, the medium of the suspension gel is mostly normal saline or low ionic strength solution, which cannot effectively protect the stability of the antibody , which affects the accuracy of positive stereotypes of products

These two shortcomings reduce the accuracy of ABO blood typing and easily lead to errors in ABO blood typing. In addition, the existing ABO blood typing cards only perform ABO positive typing and do not perform ABO reverse typing, which is inconvenient to use.

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