Automatic chemistry analyzer with improved heated reaction...

B - Operations – Transporting – 01 – L

Patent

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Details

B01L 7/00 (2006.01) G01N 21/03 (2006.01) G01N 35/00 (2006.01)

Patent

CA 2265655

The invention provides an automatic analyzing machine comprising a unique reaction cup combination for running high volume chemical analyses, such as analyses for sodium, potassium, glucose, creatinine and BUN (blood urea nitrogen). The reaction cup combination includes an aluminum body having at least one flat smooth side. A planar heating element is sandwiched between the flat side and a planar outer sidewall. Within the planar outer sidewall is disposed a reagent inlet conduit coiled or otherwise disposed in planar fashion. By this design, heating of inlet reagent is more efficient and control of the temperature within the reaction cup is more precise. In a preferred embodiment, the reaction cup assembly includes a pair of such heating element and inlet conduit combinations so that the reaction cup can be rinsed with heated water instead of heated reagent. Such a design not only reduces the use of expensive reagent, but minimizes toxic waste disposal needs.

L'invention concerne un appareil d'analyse automatique comprenant une combinaison unique de cuves de réaction qui permet d'effectuer des analyses chimiques de volume élevé, telles que le dosage du sodium, du potassium, du glucose, de la créatinine et de l'azote uréique du sang. La combinaison de cuves de réaction comprend un corps en aluminium présentant au moins un coté lisse plat. Un élément chauffant plan est disposé entre le côté plat et une paroi externe plane. Cette dernière comporte un conduit d'entrée des réactifs, disposé en spirale ou autrement dans un plan. Cette conception rend le chauffage du réactif d'entrée plus efficace et la régulation de la température à l'intérieur de la cuve plus précise. Dans un mode de réalisation préféré, l'ensemble cuve comprend une paire d'éléments chauffants et de combinaisons de conduits d'entrée, ce qui permet de le rincer avec de l'eau chaude plutôt qu'avec un réactif chaud. Une telle conception réduit l'utilisation de réactif cher et, de plus, minimise le rejet de déchets toxiques.

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