Flow chamber of blood analyzer

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...

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