Rotary reagent adding reaction device

Abstract

The invention discloses a rotary reagent adding reaction device, and the device comprises a reaction cup body; a bracket is inserted into the reaction cup body, a sealing column is arranged on the bracket, and a reagent is packaged in a liquid storage cavity by the sealing column; the liquid storage cavity is in spiral fit with the support, and the liquid storage cavity moves upwards or downwardsin the support through rotation; a push rod is further arranged above the liquid storage cavity; a reagent outlet is also formed in the bracket, and the liquid storage cavity is communicated with thereaction cup body through the reagent outlet. The sealing column is adopted for packaging the liquid storage cavity, the liquid storage cavity in the initial state is sealed through cooperation of thesealing column, internal reagents cannot flow out, only the sealing column needs to be separated from the liquid storage cavity when the reagents are added, so the structure is safer, and a user doesnot need to worry that the liquid storage cavity is punctured by a needle tip in the turnover process; the push rod is further arranged above the liquid storage cavity; in the using process, reagentsin the liquid storage cavity are completely added into the reaction cup body through the reagent outlet by means of the push rod, so the adding dosage is accurate, and the testing precision is high.

Description

technical field [0001] The invention belongs to the technical field of medical equipment, in particular to a rotary reagent adding reaction device. Background technique [0002] In the current testing situation, first add 500 μL of diluent (A) to the cuvette, then use a pipette to sample (B) 2 μL, add the sample to the cuvette after sampling, and shake the cuvette to mix the sample and diluent evenly. Then replace the pipette with 50μL or 100μL range, add 50μL reagent (C) and mix well before testing. The whole operation process needs to use at least two pipettes with different ranges, and the operation process is relatively complicated, especially for samples below 2 μL, the sampling error is large and the cost is high. [0003] In the Chinese patent document CN102072949A, a kind of integrated quantitative sampling and reagent addition device is disclosed. One-piece, the bracket is located at one end of the kit body, the other end of the kit body is equipped with a piston,...

AI Technical Summary

Problems solved by technology

[0004] However, the integrated quantitative sampling and reagent adding device in the above-mentioned technical scheme still has unsatisfactory places in the actual use process. For example, after the needle tip punctures the sealing film, there is a high possibility that unflowed reagents will remain in the kit, and the test accuracy will be reduced. Great impact; when sampling, the quantitative capillary has inaccurate sampling and cannot take multiple samples

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