Test strip sample pouring groove, drying analyzer and sampling pouring and cleaning method of drying analyzer

Abstract

A test strip sample pouring tank (3) comprises a reaction tank (34) for containing a test strip (4); an openable and closeable negative-pressure cavity (32) communicated with the reaction tank (31) is arranged below the reaction tank (31); a drainage hole (33) for communication between the reaction tank (31) and the negative-pressure cavity (32) is arranged therebetween. The test strip (4) is placed in the reaction tank (31), the test strip (4) is completely soaked in a sample through sample pouring after the negative-pressure cavity (32) is closed, and after the test strip (4) is in full contact with the sample, the negative-pressure cavity (32) is opened to suck the sample into the negative-pressure cavity (32) via the drainage hole (33), and thus the sample within the test strip sample pouring tank (3) is removed by suction. Through the method of soaking the test strip (4) completely, the sample reacts with the test strip (4) accurately and sufficiently; furthermore, by means of the arrangement of the negative-pressure cavity (32), the sample is entirely removed so that erroneous results of detection of the test strip (4) caused by an inaccurate sample application, a missing sample application, excessive sample pouring and the like can be completely avoided, and therefore, the purpose of improving the accuracy of detection is realized. Also disclosed are a drying analyzer and a sample pouring and cleaning method thereof. The drying analyzer comprises a sampling needle (1) and the test strip sample pouring tank (3).

Description

technical field [0001] The invention relates to the technical field of medical in vitro diagnostic equipment, and more specifically relates to a test strip shower tank, a drying analyzer and a sample shower and cleaning method thereof. Background technique [0002] In the current in-vitro diagnostic equipment using test strips, there are three types of methods for handling test strips and samples. [0003] The first type of processing method is to use a precision syringe to control the amount of sample application, and directly place the sample drop by drop on the test pads of various items attached to the test strips. This type of processing method adopts a simple structure, and the sampling work can be completed by using a sampling needle that can move back and forth up and down with a precision syringe, and since the samples are added to each test paper pad one by one, mutual contamination between the test paper pads is avoided . [0004] However, the first type of samp...

AI Technical Summary

Problems solved by technology

[0004] However, the first type of sampling method also has many defects. First, adding samples one by one increases the instrument’s many mechanical actions, thereby reducing the detection speed. In addition, long-term sample addition causes mechanical wear and affects the positioning accuracy of the sampling needle. so that urine is not added to the test pad and affect the result

[0005] Second, in order to control the amount of urine sample placed on each test paper pad in the sample application method, the aperture of the sample injection needle is very small (less than 0.6mm). For such a small aperture of the needle tube, the urine will Crystallization often results in the blockage of the sample needle, causing the instrument to fail to work normally, or causing uneven sample addition, resulting in insufficient sample volume for some test paper pads, resulting in false negatives

[0006] Third, there is a certain error in the positioning of the sample needle and the test paper conveyor belt. This error may cause the sample to not be accurately added to the center of each test paper pad, resulting in uneven and insufficient reaction of the test paper pad, resulting in deviations in results.

[0007] Fourth, in the actual clinical test, it is found that the thickness and viscosity of the samples of each person are different. Different samples may cause the sampling needle to hang on the water and not drip down, resulting in leakage points, and even errors in some test items. serious consequences

[0012] However, in the actual clinical test, the test strip has a certain length. To ensure that it is completely soaked, the sample size must be large, which is uncontrollable in actual operation. It is not known whether it is completely soaked. If the test strip is not If it is completely soaked, some items above will result in inaccurate results

When the test strip is taken out after soaking, there are many residual samples on the test strip, which will be scattered everywhere, affecting the sanitation of the instrument, etc.

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