Blood analysis meter test tube detection device and method

Abstract

The invention discloses a blood analysis meter test tube detection device comprising a support and a photoelectric sensor assembly, wherein the photoelectric sensor assembly comprises an optical emitter and an optical receiver; the optical emitter and the optical receiver are connected to the support, and a test tube cap is located on the sensing paths of the optical emitter and the optical receiver. The invention also discloses a test tube detection method which is characterized in that after a test tube reaches a detection site, the test tube cap changes a signal sent out by the emitter, the receiver receives the signal and judges that a test tube exists in the detection site according to the received signal. In the invention, the self lightproof test tube cap of the test tube is utilized to stop or reflect light beams to implement test tube detection and other lightproof elements do not need to be additionally arranged to stop or reflect light, thereby simplifying the structure of the test tube detection device, and the reliability is high; meanwhile, the optical emitter and the optical receiver of the photoelectric sensor assembly are fixed in the direction which forms a specific angle with the test tube through the support, thereby ensuring that more test tubes with different dimensions can be compatible.

Description

【Technical field】 [0001] The invention relates to a blood analyzer test tube detection device, a blood analyzer and a test tube detection method. 【Background technique】 [0002] The automatic blood cell analyzer has a high degree of automation, and it is required that the test tubes loaded with samples can be detected quickly and reliably, and there should be no trial and error detection, otherwise there will be risks in medical diagnosis. [0003] At present, the main test tube detection method in blood cell analyzer is photoelectric detection. The main device of photoelectric detection is a photoelectric sensor, which uses the test tube itself or other additional components, such as using the baffle to reflect or block the emitted light, so as to change the strength of the signal at the receiving end to achieve detection. Since the test tube is transparent, the test tube itself is directly used to reflect or block light to achieve detection, and there are reliability prob...

AI Technical Summary

Problems solved by technology

Use additional components to reflect or block light. Additional components need to be in direct contact with the test tube, which is easy to get dirty, aging, and deformed. The angle is difficult to control, and the detection also has reliability problems.

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