Mixing device used for hematology analyzer

Abstract

The invention discloses a mixing device used for a hematology analyzer. The mixing device comprises a mounting rack, a first fixing base, a second fixing base, a motor, a pinion, a big gear, a fixing body, a supporting body and a sample fixing rack, wherein the first fixing base is arranged at one side of the mounting rack; a fixing body bearing is embedded into the first fixing base; a fixing body is mounted on the inner ring of the fixing body bearing; the big gear is arranged at one end of the fixing body in a sleeving mode; the pinion is arranged at one side of the big gear; one end of the pinion is connected with the motor; the sample fixing rack is mounted on the fixing body; one end of the sample fixing rack is mounted at one end of the supporting body; the supporting body is mounted in the supporting body bearing; the supporting body bearing is embedded into the second fixing base. The mixing device is compact in structure, wide in range of application of power and shake-up speed, capable of carrying out shake-up while mounting more than 10 samples once and improving the mixing efficiency, accurate in transmission ratio, high in transmission efficiency, capable of controlling a sample to swing by any angle, and capable of sufficiently shaking up.

Description

technical field [0001] The invention relates to the technical field of medical and health instruments, in particular to a mixing device for a blood cell analyzer. Background technique [0002] Blood cell analyzer is one of the most widely used instruments in hospital clinical examination. With the rapid development of computer technology, blood cell analysis has also changed from three-dimensional to five-group, from two-dimensional space to three-dimensional space, and we have also noticed that modern blood cell The analyzer's five-differentiation technology uses the same technology as today's most advanced flow cytometers, such as scattered light detection technology, sheath flow technology, laser technology and so on. [0003] In existing blood cell analysis instruments, the blood sample needs to be fully mixed before automatic sampling, so that further sampling and detection can be performed. There are two types of mixing devices for blood analyzers on the market. One i...

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Problems solved by technology

[0005] Chinese patent application 201210088033.7 discloses a mixing device for a blood cell analyzer, including a roller capable of rotating 360° and a roller carrying a test tube rack. The roller is provided with a belt, which is driven by a belt to cooperate with the first motor. The rollers of the drum are fixed together, and the inside of the drum has a space for accommodating a test tube rack; the test tube rack can hold a plurality of test tubes, and the mixing device of the invention realizes the shaking operation of multiple test tubes in the test tube rack at one time , which improves the mixing efficiency of the hematology analyzer, but it has the disadvantages that it is difficult to accurately control the swing angle of the test tube, and the mechanism occupies a large space, and the life of the belt is short.

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