Analyzer with automatically actuated movable closure of pipetting openings

An automatic analysis and pipetting technology, which is applied in the field of clinical chemical analysis instruments, can solve problems affecting reliability, etc.

Inactive Publication Date: 2008-09-03
F HOFFMANN LA ROCHE & CO AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These are undesired effects that affect the reliability of the measurements performed by the analytical instrument

Method used

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  • Analyzer with automatically actuated movable closure of pipetting openings
  • Analyzer with automatically actuated movable closure of pipetting openings
  • Analyzer with automatically actuated movable closure of pipetting openings

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0102] Preferred embodiments will be described below with reference to the drawings.

[0103] Analyzer example

[0104] Figure 1 shows an overall perspective view of an instrument according to the present invention, such as a clinical chemistry analyzer for the automatic analysis of a plurality of samples of biological fluids in which assayed amounts of said samples are mixed with assayed amounts of selected reagent liquids in reaction cuvettes to form a sample reagent mixture contained in multiple reaction tubes. FIG. 2 shows a perspective view of the instrument of FIG. 1 without the cover as part of the housing 11 .

[0105] The analyzer shown in FIGS. 1 and 2 has a housing 11 and an automatic pipetting unit 12 .

[0106] A reagent container array and a reaction tube array described hereinafter are arranged inside the housing 11 . Each of the reagent container and the reaction tube has an opening at its top end.

[0107] The automatic pipetting unit 12 has a pipetting ne...

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PUM

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Abstract

A clinical chemistry analytical apparatus for automatically analyzing a plurality of biological fluids samples is disclosed. The apparatus provides a movable cover having a pipetting opening which allows insertion of a pipetting needle therethrough, a closure mechanism which in a first state closes the pipetting opening and in a second state leaves it open, a conveyor automatically transporting a reagent container to a pipetting position, at which an opening of the reagent container is aligned with the pipetting opening, and an actuation mechanism which automatically brings the closure mechanism into the second state before introducing the pipetting needle through the pipetting opening and which brings the closure mechanism into the first state after withdrawal of the pipetting needle from the pipetting opening. The actuation mechanism is adapted to actuate the closure mechanism by a displacement of a transport device that moves the pipetting needle to and from at least one pipetting position.

Description

technical field [0001] The invention relates to a clinical chemistry analysis device according to the preamble of claim 1 . Background technique [0002] Analytical instruments of the type described above contain a plurality of reagent containers, each of which contains a liquid reagent. Each reagent container has an opening at its upper end. The operation of the instrument includes a pipetting operation, which includes inserting a pipetting needle of the automatic pipetting unit into the upper opening of the reagent container to aspirate a test volume of reagent liquid, and dispense the test volume into selected reaction tubes. [0003] Because the reagent containers should be kept open to facilitate the pipetting operations described above, and because the reagent containers are refrigerated at a constant temperature to prevent deterioration and ensure long-term stability of the reagents, some reagents will be lost due to evaporation and a certain amount will be lost. Mo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N35/00
CPCB01L3/0217B01L2200/142B01L2200/16B01L2300/045B01L2300/049G01N35/025G01N35/1002G01N2035/00287
Inventor G·沙彻R·古特
Owner F HOFFMANN LA ROCHE & CO AG
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