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Liquid delivery control method and liquid delivery control system

A control method and control system technology, applied in fluid controllers, chemical instruments and methods, transportation and packaging, etc., capable of solving problems such as complex structures and electrolysis of liquid 98

Inactive Publication Date: 2011-03-23
ARKRAY INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This current may cause the liquid 98 to be electrolyzed
In the case of using light for detection, the above-mentioned reflective film and the light-transmitting part must be provided in the cylinder 92, which will still cause the structure of the cylinder 92 to become complicated.
In addition, the analyzer 91 must be equipped with light-emitting components such as LED modules and light-receiving components such as photodiodes.

Method used

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  • Liquid delivery control method and liquid delivery control system
  • Liquid delivery control method and liquid delivery control system
  • Liquid delivery control method and liquid delivery control system

Examples

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Embodiment Construction

[0034] Hereinafter, preferred embodiments of the present invention will be specifically described with reference to the drawings.

[0035] Figure 1 ~ Figure 3 An example of the liquid feeding control system of the present invention is shown. The liquid delivery control system of this embodiment includes an analyzer 1 and a cartridge 2 . The analysis device 1 and the cartridge 2 use the liquid supply control method of the present invention, for example, to optically analyze specific components such as hemoglobin or C-reactive protein in blood, or to count blood cells such as red blood cells or white blood cells.

[0036] The analysis device 1 can be loaded with a cartridge 2 and includes a pressure sensor 5 , a pump 6 and a CPU 7 . In addition to these components, the analysis device 1 is equipped with light-emitting components such as LED modules and light-receiving components such as photodiodes for optical analysis.

[0037] A pressure sensor 5 is provided in the path co...

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PUM

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Abstract

Provided is a liquid delivery control method for delivering a liquid (8) to a microchannel (3) where the liquid (8) is present by using a pump (6) to hold the liquid (8) in the microchannel (3) and generate a differential pressure, wherein a pressure loss varying part (31) for varying the pressure loss in the flow direction is provided in the microchannel (3), and the tip end (8a) of the liquid (8) is judged to have reached the pressure loss varying part (31) when a fluctuation in pressure between the liquid (8) and the pump (6) is detected. With this configuration, it is possible to appropriately detect the position of the tip end of the liquid (8) without making the structure forming the microchannel (3) any more complex.

Description

technical field [0001] The present invention relates to a liquid feeding control method and a liquid feeding control system capable of properly grasping the position of the leading end of a liquid fed in a fine channel. Background technique [0002] The technique of transporting a liquid through a microscopic channel is used, for example, in a blood analysis device that analyzes specific components in blood. In a blood analysis device, for example, after diluting blood as a sample by a predetermined ratio with a diluent, the diluted blood reacts with a reagent to detect the color, thereby analyzing the presence or absence of a specific component or its concentration. In addition, in the blood analyzer, blood cells such as red blood cells and white blood cells are counted based on changes in electrical resistance when diluted blood passes through a narrow cross section. In order to carry out these analyses, it is required that a certain amount of blood or diluent and dilute ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N35/08G01N37/00
CPCB01L2300/0816B01L2300/14G01N2035/1034B01L2300/16B01L3/50273B01L2400/0415G01N35/1095B01L2300/087B01L2200/14B01L2200/0642B01L3/502746Y10T137/0379Y10T137/8593
Inventor 花房昌弘
Owner ARKRAY INC
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