Forward-scattering signal inspection device and method, cell or particle analyzer

Abstract

The invention discloses a forward scattering optical signal detecting device used by a flow cell analyzer or a particle analyzer, a forward scattering optical signal detecting method and a cell or particle analyzer provided with the device. The forward scattering optical signal detecting device comprises a detecting unit and a collecting unit, wherein the detecting unit is provided with a plurality of subsidiary detecting units arranged in a one-dimensional position and used for detecting the forward scattering optical signals; the collecting unit used for collecting forward scattering optical signals and focusing the forward scattering optical signals on the detecting unit; and the optical signals detected by the subsidiary detecting units in different positions or intervals are used as the optical signals with different scattering angles. The invention can reduce the system cost and keep the miniaturized advantage, is easy to debug and can feely select the collected optical signals with different scattering angles so as to more precisely distinguish all subgroups in cells or particles to be detected.

Description

technical field [0001] The present invention relates to a flow cytometer or particle analyzer, in particular to a forward scattered light signal detection device for a cell or particle analyzer, a cell or particle analyzer containing the detection device, and a cell or particle analyzer A forward scattered light signal detection method for a particle analyzer. Background technique [0002] In clinical practice, detection of cell information in a patient's body fluids can assist doctors in making accurate judgments on the characteristics of a patient's disease, especially the examination of cells in blood, such as counting and classifying red blood cells, white blood cells, and platelets in blood. As a result, many cell analysis devices have been produced. These devices use electrical impedance methods and optical methods to analyze blood cells. Among them, the electrical impedance method can only detect the volume information of these cells, and obtain the number of cells an...

AI Technical Summary

Problems solved by technology

Therefore, it is very important to judge the position of the collimator lens, but in this technology, there is no standard for judging whether the collimator lens is in the collimation position, and the adjustment process can only be completed by experienced personnel;

[0020] 3. Even though the optical path adjustment in this technology can be realized by detecting the differential signals of each sub-detection surface of the photodetector, since the adjustment includes two-dimensional directions, that is, up and down and left and right directions, the adjustment process is cumbersome

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