Sample system of chemiluminescent immunoassay instrument

Abstract

The invention discloses a sample system of a chemiluminescent immunoassay instrument. The sample system comprises a base, wherein a sample rack is mounted on the base, a leftward-rightward pushing mechanism is mounted on the base in front of the sample rack, a test-tube rack is mounted on the sample rack, a stopping device is arranged at the front end of the sample rack, a stopping block of the stopping device is located at the front end of the test-tube rack so as to limit the forward movement of the test-tube rack, a supporting seat is mounted on the leftward-rightward pushing mechanism, a forward-backward pushing mechanism is mounted on the supporting seat, a grabbing mechanism is arranged on the forward-backward pushing mechanism, a grabbing hook of the grabbing mechanism directly faces to the stopping block of the stopping device, when the grabbing mechanism moves backwards, the grabbing hook shifts the stopping block and hooks the front end of the test-tube rack, and when the grabbing mechanism returns forwards, the grabbing hook drives the test-tube rack to move forwards. According to the sample system of the chemiluminescent immunoassay instrument, accurate locating can be realized through the action of magnetic force, so that the test-tube rack is stably mounted on the sample rack; the grabbing mechanism can simultaneously unlock the stopping device and grab the test-tube rack, so that automated control is realized.

Description

technical field [0001] The invention belongs to the technical field of medical devices, and in particular relates to a sample system of a chemiluminescence immunoassay analyzer. Background technique [0002] In hospitals and other medical testing centers, biochemical analyzers, urine analyzers, etc. are used to analyze physiological indicators of a large number of liquid samples. Nowadays, these analysis processes are often fully automatic. The operator only needs to place the test tube rack containing the test tubes in the analysis instrument, and the instrument will automatically complete a series of operations such as sampling or adding reaction reagents, and finally give the analysis results. . In some analytical instruments, the test tube rack is first sent to the designated position on the sample rack manually, and then the test tube rack is sent to the sampling place through the grabbing mechanism for sampling. Since the test tube rack is manually sent into the sampl...

AI Technical Summary

Problems solved by technology

In some analytical instruments, the test tube rack is first sent to the designated position on the sample rack manually, and then the test tube rack is sent to the sampling place through the grabbing mechanism for sampling. Since the test tube rack is manually sent into the sample rack, it is difficult Ensure that the test tube rack is placed in an accurate position, and there is no structure on the existing test tube rack that is convenient for the grasping mechanism; therefore, the accuracy of the test tube rack in the analyzer or on the sample rack will directly affect the detection and analysis Whether it can be carried out smoothly, when the amount of testing samples is small, the operator can accurately place the test tube rack in the position specified by the instrument according to the requirements, but when the sample volume is huge and the testing time is tight, the deviation rate of the test tube rack placement will be In addition, even if the operator puts the test tube rack accurately at the specified position of the instrument at the beginning, when the instrument is transporting the test tube rack with samples, the noise or vibration of the instrument will also cause the test tube rack to occur in the instrument. Displacement, so that the test tube rack deviates from the specified position of the instrument, or the test tube tilts on the test tube rack, resulting in the leakage of liquid samples and other pollution events

[0003] The disadvantages of the prior art are: when the existing test tube rack is transferred to the sampling place, it is not convenient for the grasping mechanism to grab, the existing test tube rack cannot be accurately positioned and locked in the analytical instrument or on the sample rack, and the test tube There is no mechanism on the rack and sample rack to facilitate the positioning of the test tube rack

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