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Blood cell analyzer

A blood cell analysis and liquid inlet technology, which is applied in the field of blood cell analyzers, can solve the problems affecting the counting accuracy and achieve the effects of improving accuracy, reducing the probability of air bubbles, and reducing interference

Active Publication Date: 2018-01-09
LEADWAY HK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When these splashed liquids fall into the bottom of the container, they will impact the liquid level at the bottom of the container, which will easily generate air bubbles that affect the counting accuracy

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] Please refer to figure 1 , The sheath flow impedance counting device of the present invention includes: a liquid storage tank 100 , an isolation tank 200 and a counting tank 300 . Wherein, the counting tank 300 includes a rear tank 400 , a front tank 500 and a counting hole 600 between the rear tank 400 and the front tank 500 . The isolation tank 200 includes a container body 201 , a liquid inlet 202 and a liquid outlet 204 , wherein the container body 201 includes a top wall 203 , a bottom wall 205 , and a side wall 207 . The top wall, bottom wall and side walls enclose the inner cavity 209 of the isolation pool. The container body 201 may be a cylinder, a cube, a regular polygon, a sphere, an ellipsoid, or a combination of a cylinder, a hemisphere or a cone, and the like. The liquid inlet 202 of the isolation tank is connected to the liquid storage tank 100 through a pipeline 700 (collectively referred to as all pipelines, the same throughout), and the liquid outle...

Embodiment 2

[0057] figure 2 and Figures 2A-2F Shown is a second embodiment of the invention. The main difference between the second embodiment and the first embodiment is that the angle between the stopper 206 and the top wall 203 of the isolation tank is 45 degrees, that is, the stopper 206 is isolated from the top wall 203 of the isolation tank. The inner cavity 209 of the pool extends and forms an angle of 45 degrees or 135 degrees with all planes of the top wall 203 of the isolation pool. The inventors have shown through experiments that the included angle between the stopper 206 and all the planes of the top wall 203 of the isolation tank can also be selected from: the angle greater than or equal to 30 degrees is less than or equal to the angle of 60 degrees, the angle greater than or equal to 60 degrees is less than the angle of 90 degrees , the angle is equal to 900 degrees, the angle greater than 90 degrees is less than or equal to 120 degrees, and the angle greater than 120 deg...

Embodiment 3

[0060] image 3 and Figures 3A-3F Shown is a third embodiment of the invention. The main difference between the third embodiment and the first embodiment is: A) the isolation tank 200 is placed vertically (of course it can also be placed inclined, but the effect is better when placed vertically); B) the liquid inlet 202 of the isolation tank is located at On the top wall 203 of the isolation tank, the liquid outlet 204 of the isolation tank is positioned at the bottom of the side wall 207 of the isolation tank or on the bottom wall 205; C) the device 206 for controlling the liquid flow rate is a disc shape (such as Figure 3D shown) or a conical structure (such as Figure 3A shown). At this time, the disc-shaped or cone-shaped structure is fixed on the inner wall of the isolation pool, and a gap is designed between the edge of the disc-shaped or cone-shaped structure and the inner wall 207 of the isolation pool to allow liquid to pass through. Such as Figure 3B As shown...

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PUM

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Abstract

The invention relates to a blood cell analyzer. The blood cell analyzer comprises a sheath fluid rear tank cleaning device, the sheath fluid rear tank cleaning device comprises a fluid storage tank, an isolation tank and a counting tank which are connected through a pipeline, wherein the counting tank comprises a rear tank, a front tank and a counting hole between the rear tank and the front tank;the isolation tank comprises a fluid inlet connected to the fluid storage tank and a fluid outlet connected to the rear tank; a device used for controlling the fluid velocity is arranged near the fluid inlet of the isolation tank, and protrudes out of the inner wall of a container body or is installed on the inner wall of the container body and is at least partially opposite to the fluid inlet ofthe isolation tank. The device used for controlling the fluid velocity is arranged on or near the fluid inlet, so that when an added fluid touches the inner wall of the isolation tank or a fluid surface at the bottom part of the tank, the velocity of the added fluid is less than the velocity of a fluid flowing out of the fluid inlet just now, the probability of generating a bubble is reduced, theinterference of the bubble on a counter is reduced, and the detection accuracy of the analyzer is improved.

Description

technical field [0001] The invention relates to a blood cell analyzer, in particular to a cleaning device for the sheath flow pool of the blood cell analyzer. technical background [0002] With the improvement of human living standards, human needs for health are also increasing. In developed countries and some economically developed areas in some developing countries, annual physical examination has become a part of daily life. The components contained in the blood are the barometer of human health. Therefore, by analyzing the components in a person's blood, the health status of the person can be known. Therefore, blood cell analyzers specially used to analyze the material components in blood have been widely used. Hematology analyzers generally include three-differentiation hematology analyzers and five-differentiation hematology analyzers. The core components of the blood cell analyzer are usually the sheath flow impedance counter and the corresponding device for preven...

Claims

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Application Information

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IPC IPC(8): G01N33/48G01N15/14
Inventor 张学锋武林管海兵徐伟
Owner LEADWAY HK