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Flow chamber of blood analyzer

A blood analyzer and flow chamber technology, applied in the field of blood analyzer flow chamber, can solve the problems of high cost and difficult processing, and achieve the effects of saving materials, shortening working time, and simple process structure

Inactive Publication Date: 2015-03-25
南昌百特生物高新技术股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the deficiencies of the prior art and to provide a flow chamber of a five-differentiation hematology analyzer with a relatively simple structure and low cost for the problems of difficult processing and high cost of the flow chamber of the existing five-differentiation hematology analyzer

Method used

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Embodiment Construction

[0014] First add the sample (blood sample) to the flow chamber through 100, then add the diluent and mix well, after adding hemolysin through the hemolysin inlet 107, there will be a negative pressure at the sampling port 104 to draw the mixture of the sample and other solutions from the flow chamber According to Coulter's principle, the DC signal of white blood cells will be generated at this time; at the same time, combined with the optical system designed for it, when the laser passes through the designed optical path and passes through the quartz window 109, the focus will be converged on the Coulter At the center of the microwell, the focused light spot will illuminate the entire Coulter microwell. When the cells pass through the Coulter micropore, a light scattering signal will be generated, and the light scattering signal will pass through the quartz window plate 110 coated with an anti-reflection film to keep the light signal intensity from attenuating, and then the car...

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Abstract

The invention discloses a flow chamber of a blood analyzer. A HGB emitting tube installation hole and a receiving tube installation hole are formed in the two sides of the upper part of the flow chamber of the blood analyzer, wherein an electrode plate installation hole is formed in a position, adjacent to the lower part of the HGB emitting tube; a sampling opening and a cleaning fluid inlet are formed in the two sides below the electrode plate installation hole; a quartz window plate is formed in each of front and rear parts below the electrode plate installation hole; a Kurt precious stone micropore is formed in one position, on a coaxial line on the center position of the quartz window plate, at one side of the sampling hole; and the Kurt precious stone micrpore is formed by processing a precious stone sheet. The flow chamber of the blood analyzer is relatively simple in structure, free of a sheath flow tube and a spray nozzle tube, and low in cost. Unlike the conventional mode of using the flow chamber and a dilution cup separately, the dilution cup and the flow chamber are combined for use in the invention, so that the electrical impedance detection and the optical signal detection are performed in the same part, the samples and the reagent are further saved while the materials are saved, and the working time of the apparatus is greatly shortened.

Description

technical field [0001] The invention relates to a medical device, in particular to a flow chamber of a blood analyzer. Background technique [0002] The flow chamber is the core component of the five-differential hematology analyzer. The traditional flow chamber is composed of sample tube, sheath liquid tube and nozzle, etc., and is usually made of transparent and stable materials such as optical glass and quartz. The design and production are very delicate, and it is the heart of the liquid flow system. The sample tube stores the sample, and a single cell suspension is ejected from the sample tube under the action of the liquid flow pressure; the sheath liquid flows from the sheath liquid tube to the nozzle hole, surrounds the sample, and then ejects from the nozzle. In order to ensure that the liquid flow is stable, the liquid flow velocity is generally limited to less than 10m / s. Due to the effect of the sheath fluid, the detected cells are confined to the axis of the f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N15/12
Inventor 聂子坤黄凯赵雄锋龙伟张星原罗亮李富贵袁俊梁志伟
Owner 南昌百特生物高新技术股份有限公司
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