Automatic analyzer

Abstract

Disclosed is an automatic analyzer that offers highly reliable analytic data and a high level of processing capacity while allowing a reagent sampling operation suitable for a given reagent container to be performed when a reagent container suitable for a given reagent is used. When the operation begins, whether a reagent bottle contains a liquid leakage prevention mechanism is checked (Steps 601, 602). If there is no liquid leakage prevention mechanism, the size of the opening of the reagent bottle is determined (Step 604). Then, when one cycle has passed after the reagent disk is stopped, anozzle is inserted and lowered into the reagent bottle and whether the nozzle has reached the liquid surface is determined by using a capacitive method (Step 607) if the opening is large, or a pressure detection method (Step 608) if the opening is small. If there is a liquid leakage prevention mechanism, the size of the opening of the reagent bottle is determined (Step 604), and the nozzle is inserted and lowered into the reagent bottle immediately after the reagent disk is stopped, and whether the nozzle has reached the liquid surface is determined by using a capacitive method (Step 605) if the opening is large, or a pressure detection method (Step 606) if the opening is small.

Description

technical field [0001] The invention relates to an automatic analysis device and method for qualitative and quantitative analysis of biological samples such as blood and urine. Background technique [0002] There are two types of reagent dispensing mechanisms in automatic analyzers: a reagent dropping system and a reagent pipetting system. In the reagent pipetting mode, the reagent probe descends into the reagent bottle to detect the liquid level of the reagent. After the liquid level of the reagent is detected, the reagent in the amount determined by the reagent is separated into the nozzle, and a certain amount of the reagent is dispensed into the reaction container. [0003] In order to separate with high precision in the reagent pipetting method, it is important to focus on the following: [0004] (1) The tip of the nozzle stops at a fixed position from the reagent liquid surface in the reagent container. [0005] (2) When the reagent is separated, there is little sha...

AI Technical Summary

Problems solved by technology

[0012] That is, in a high-speed automatic analyzer capable of multi-specimen processing, the amount of bubbles generated on the liquid surface of the reagent increases due to the large amount of vibration of the reagent bottle, so a "cartridge" is inserted into the reagent bottle, but the size of the reagent container cost increase

In an automatic analyzer for multi-specimen processing, a large-capacity reagent bottle is required, but the amount of bubbles generated in a large-capacity reagent bottle increases

In addition, in the sealed reagent bottle, because the reagent probe pierces the reagent bottle, it is difficult to perform high-speed processing

Images