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Blood cell analyzer cleaning agent automatic filling method and device

A technology for blood cell analysis and cleaning liquid, applied in the field of automatic perfusion devices for cleaning liquid of blood cell analyzers, can solve problems such as blockage of liquid filters, contamination of cleaning liquid, and reduced reliability, so as to eliminate the possibility of failure, liquid Simple road design and high reliability

Active Publication Date: 2008-08-20
SHENZHEN MINDRAY BIO MEDICAL ELECTRONICS CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] This solution is low in cost, but at the same time, the reliability is also reduced: both the cleaning liquid and the waste liquid must pass through a common power source (pump PM), if the liquid filter (FLS) is not selected, the cleaning liquid will be polluted when passing through the pump (PM) ; If the liquid filter (FLS) is added, the maintenance cost of the machine itself will be increased; if the liquid filter (FLS) is not replaced in time, the liquid filter (FLS) will be blocked, and the cleaning liquid will not be able to realize automatic perfusion

Method used

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  • Blood cell analyzer cleaning agent automatic filling method and device
  • Blood cell analyzer cleaning agent automatic filling method and device
  • Blood cell analyzer cleaning agent automatic filling method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Embodiment 1 of the present invention provides an automatic cleaning liquid perfusion device for a blood cell analyzer, the schematic diagram of its liquid circuit is as follows Figure 4 As shown, it includes WBC counting pool, liquid supply device, liquid storage device and positive and negative pressure devices. The WBC counting pool is connected to the positive and negative pressure device through the third two-way valve 12 and connected to the liquid supply device through the second two-way valve 8 . The other end of the liquid supply device is controllably connected to the diluent 10 and the cleaning liquid 11 respectively. The WBC counting tank is also connected to the liquid storage device through the first two-way valve 2, and the other end of the liquid storage device is connected to a positive and negative pressure device.

[0034] Wherein the WBC counting pool includes the WBC counting pool front pool 1, the jewel hole 20 and the WBC counting pool back pool...

Embodiment 2

[0043] As shown in Figure 5, the cleaning solution automatic perfusion device of a blood cell analyzer provided in this embodiment has three channels, that is, the WBC counting pool 1, the diff (differential, classification) pool 23 and the RBC counting pool 34 can be cleaned The liquid is automatically filled.

[0044] The WBC counting channel includes: WBC counting tank 1, the first two-way valve 2, the first volume metering tube 3, the first pipeline 4, the WBC counting tank forebay 5, the first liquid storage tube 6, and the first three-way valve 7. Second two-way valve 8, second three-way valve 9, diluent 10, cleaning solution 11, third two-way valve 12, pressure sensor 13, pressure chamber 14, second liquid storage pipe 15, third three-way Valve 16 , first air filter 17 , gas-liquid dual-purpose pump 18 , fourth three-way valve 19 , jewel hole 20 of WBC counting tank 1 , fourth two-way valve 21 and second air filter 22 .

[0045] Wherein the jewel hole 20 is positioned ...

no. 3 example

[0067] Fig. 6 is a schematic diagram of the liquid circuit of the third embodiment of the cleaning liquid automatic filling device for the blood cell analyzer of the present invention. Compared with the first embodiment, the first two-way valve 2 and the fourth two-way valve 21 are changed to three-way valves, and the first three-way valve 7 is canceled, so that the same function as the first embodiment can be realized. For five-differentiation hematology analyzers, this scheme will cause too long counting time and is unsuitable for use, but it can be used for three-differentiation hematology analyzers.

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PUM

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Abstract

The invention discloses a blood cell analyzer automatic perfusion method, including absorbing cleaning liquid, emptying and cleaning three steps; wherein the cleaning step is back flush, that is the cleaning liquid goes from the counting pool back pool into the counting pool front pool through gem hole for cleaning. A kind of blood cell analyzer cleaning liquid automatic perfusion device, including counting pool, positive and negative pressure device, liquid storage device and liquid supplier; each of the liquid supplier and liquid storage device has one end connecting to the counting pool back pool; the cleaning liquid goes from the liquid supplier into the liquid storage device under the negative pressure which is produced by positive and negative pressure device; then the cleaning liquid goes from the counting pool back pool and gem hole, and back flushes into counting pool front pool for cleaning under positive pressure which is produce by positive and negative pressure device. The blood cell analyzer cleaning liquid automatic perfusion method provided by invention has high reliability, good cleaning effect, and the blood cell analyzer cleaning liquid automatic perfusion device liquid route has simple design and low cost.

Description

technical field [0001] The invention relates to a method for automatically pouring cleaning liquid of a blood cell analyzer and an automatic cleaning liquid pouring device for a blood cell analyzer realizing the method. Background technique [0002] The hematology analyzer is a medical precision instrument, which needs to be filled with cleaning solution for daily / regular maintenance. Currently on the market, there are two cleaning solution filling methods for hematology analyzers: one is outside the machine, and the operator manually assists the machine to complete the cleaning solution filling; the other is automatically filling the cleaning solution inside the machine. The former needs to absorb the cleaning solution outside the machine. Generally, the three-differentiation hematology analyzer adopts this operation method; while the five-differentiation hematology analyzer usually adopts the automatic perfusion method. At present, most of the machines on the market that ...

Claims

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Application Information

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IPC IPC(8): G01N35/00G01N33/48G01N15/00
Inventor 张诚赵丙强
Owner SHENZHEN MINDRAY BIO MEDICAL ELECTRONICS CO LTD
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