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Biochemical analysis device

A centrifugal rotor and microchip technology, which is used in measurement devices, analysis materials, and material analysis by optical means to achieve the effects of high analysis accuracy, high measurement accuracy, and high reproducibility

Inactive Publication Date: 2007-12-05
ROHM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0020] As described above, in the current analysis method using a microchip to perform photometry while rotating the centrifuge rotor, target analysis cannot be performed with high accuracy and reliability.

Method used

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  • Biochemical analysis device
  • Biochemical analysis device
  • Biochemical analysis device

Examples

Experimental program
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Embodiment Construction

[0070] Fig. 1 is a perspective view showing the structural appearance of an example of the biochemical analysis device of the present invention, Fig. 2 is a schematic plan view showing the internal structure of the biochemical analysis device shown in Fig. 1 , and Fig. 3 is a schematic plan view showing the biochemical analysis device shown in Fig. 2 A cross-sectional view of the configuration of the measurement unit of the device.

[0071] This biochemical analysis device 10 is a device for analyzing and examining samples for biochemical analysis such as blood (which may be serum or plasma) using a microchip 60, and is provided with, for example, a box-shaped casing 11 as a whole. The measuring unit 20 arranged in the center, the light source unit 40 arranged at the right rear side of the measuring unit 20, the light receiving unit 50 arranged at the left side of the measuring unit 20, and the light receiving unit 50 arranged at the rear side of the measuring unit 20 and equip...

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Abstract

A biochemical analysis device using a microchip in which the base line of the analysis device can be stabilized. The biochemical analysis device has a centrifugal rotor which has a chip holding part for holding a microchip and which is subjected to rotary driving; a light source part; and a light detector, in which the microchip is a microchip in which the centrifugal force act by rotation of thecentrifugal rotor and in which pretreatments are performed in which the measurement cell of the microchip is irradiated with light from a light source, the light which has passed through the measurement cell being received in the light detector, and measuring of the light intensity in which the quantity of light absorption by the test liquid is measured within the measurement cell and the test liquid is analyzed, while rotation of the centrifugal rotor is stopped.

Description

technical field [0001] The present invention relates to a biochemical analysis device using a microchip for measuring the concentration of a component to be detected contained in a sample for biochemical analysis by absorptiometry or turbidimetry, and particularly relates to a microchip used for measuring, for example, A microchip biochemical analysis device for the activity of enzymes such as γ-GTP (γ-glutamyl transpeptidase) in blood, which are necessary for the diagnosis of human liver function. Background technique [0002] In recent years, the application of micromachine technology has made it possible to perform chemical analysis, etc., in a much smaller size than conventional devices. Analytical methods using microchips called "μ-TAS (Micro-Total Analysis System)" and "lab-on-a-chip" are attracting attention. [0003] An analysis system using such a microchip (hereinafter referred to as "microchip analysis system") refers to the process of mixing, reacting, separatin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/50G01N21/00G01N35/00
CPCG01N21/07G01N21/314
Inventor 松本茂树奥村善彦
Owner ROHM CO LTD
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