Device for collecting and detecting analytes in fluid sample

Abstract

The invention provides a device for collecting and detecting analytes in a fluid sample, which comprises a detection chamber for containing testing elements, a collection chamber for collecting the fluid sample, a piston chamber positioned between the detection chamber and collection chamber, a piston and an opening, wherein the piston has a first position and a second position in the piston chamber; when the piston is in the first position, the piston chamber is communicated with the collection chamber through the fluid at the opening; and in the process of the piston moving to the second position from the first position, the opening is sealed by the piston, and meanwhile, the fluid in the piston chamber is released into the detection chamber. The device can be used for precisely detecting the fluid sample, and can enhance the detection accuracy and operational comfort.

Description

technical field [0001] The invention relates to a detection device, in particular to a detection device for detecting illegal drugs in fluid samples. Background technique [0002] At present, it is easier and easier for ordinary people to obtain illegal drugs, so the use of illegal drugs is also increasing. In order to ensure the safety of the working environment and the fair competition of sports, enterprises, units and sports organizations need to test the body fluids of employees and athletes, such as urine, to know whether employees and athletes have used illegal drugs. Therefore, more and more body fluid sample collection and detection devices are used, and they need to be operated by non-professionals in common situations. For example, a fluid sample is removed from a container and added dropwise to a chemical or immunological reagent strip. During such operation, samples and tests will be exposed to the outside, which will cause pollution or damage to the operator o...

AI Technical Summary

Problems solved by technology

Such a device leaks because the piston and the piston wall are not airtight enough. In addition, due to relying on the rotation of the piston to extract part of the fluid sample, more inconvenience and safety problems will also occur in actual operation. In particular, during the rotation process, the The fluid in the piston is not easy to flow into the detection chamber, because in a confined space, the transfer of the fluid sample is not smooth enough, resulting in the inconsistency of the fluid sample, or even the amount of the fluid sample is too small to complete the test

[0005] Another fluid sample collection and detection device is also disclosed in US7270959, which discloses that the fluid sample is sampled by relying on the lateral movement of the piston, but in actual operation, the user needs to spend a lot of effort to push the piston to move, It is also disclosed that the piston hand used to push the piston can be separated from the piston, so that in actual operation, the piston push hand may be lost due to some factors and cannot complete the movement of the piston

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