Dispensing device and automatic analysis device

A technology of dispensing volume and pressure, applied in measuring devices, analyzing materials, sampling, etc., can solve problems such as rising manufacturing costs and high prices, and achieve the effect of maintaining manufacturing costs

Inactive Publication Date: 2009-07-01
BECKMAN COULTER INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in this case, probes, syringes, pressure sensors, etc

Method used

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  • Dispensing device and automatic analysis device
  • Dispensing device and automatic analysis device
  • Dispensing device and automatic analysis device

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0072] Hereinafter, a preferred mode for implementing the present invention (hereinafter referred to as "embodiment") will be described with reference to the drawings. figure 1 It is a diagram schematically showing the structure of a dispensing device according to an embodiment of the present invention. The dispensing device 1 shown in the figure has: a thin tube-shaped probe 2 that directly sucks or discharges the liquid Lq to be dispensed; Rotation action moves the probe 2 thereby; the syringe 4 sucks and discharges the cleaning liquid Wa as the pressure transmission medium for transmitting pressure to the probe 2; the tube 5 is connected to the probe 2 and the syringe 4 as the cleaning liquid Wa The flow path; and the pressure measuring section 6, which detects the pressure applied to the probe 2. Here, the cleaning liquid Wa is composed of an incompressible fluid such as ion exchange water or distilled water.

[0073] The syringe 4 has a cylinder 4a and a piston 4b. Through th...

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PUM

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Abstract

A dispensing apparatus in which, while the manufacturing cost is maintained, dispensing abnormality can be detected with high accuracy regardless of the characteristics of the dispensing apparatus, and an automatic analyzer including the dispensing apparatus are provided. The dispensing apparatus includes a probe (2) that directly sucks or discharges a liquid; a syringe (4) that generates a pressure necessary for the probe (2) to suck or discharge the liquid; a pressure measuring unit (6) that detects the pressure applied to the probe (2); a setting unit (14) that sets a correction coefficient used when correcting a physical amount based on characteristics of the dispensing apparatus; a storage unit (15) that stores therein information including the correction coefficient set by the setting unit (14), and a correcting unit (16) that corrects the physical amount using the correction coefficient stored in the storage unit (15).

Description

technical field [0001] The present invention relates to a dispensing device for dispensing a liquid, and an automatic analyzer equipped with the dispensing device for analyzing a sample. Background technique [0002] In an automatic analyzer for analyzing components of a sample, a dispensing device is used for dispensing a sample or a reagent into a reaction container. The dispensing device has a structure in which a tube-shaped probe is connected to a syringe that generates pressure required to suck or discharge a sample or reagent through the probe through a pipeline, and the pressure generated by the syringe is transmitted to the probe through the pipeline. [0003] In the past, the following technology is known: in the dispensing device having the above-mentioned structure, the pressure applied to the probe is detected using a pressure sensor, and dispensing abnormalities such as clogging at the tip of the probe are detected based on the detection result (for example, re...

Claims

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Application Information

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IPC IPC(8): G01N35/10G01N1/00
CPCG01N2035/1018G01N35/1016
Inventor 小楠博之
Owner BECKMAN COULTER INC
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