AUTION MAX AX-4280 PDF

Color Trading Sp. Japan site. After the development of this, ARKRAY continued to specialize in fully-automated urine analysis and continued to work to provide added values to its customers. An urine test strip consists of reagent filter pads attached a layer of film and is long, delicate and fragile. The fragile strips must be accurately supplied into the analyzer one by one from the test strip feeder.

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Color Trading Sp. Japan site. After the development of this, ARKRAY continued to specialize in fully-automated urine analysis and continued to work to provide added values to its customers. An urine test strip consists of reagent filter pads attached a layer of film and is long, delicate and fragile.

The fragile strips must be accurately supplied into the analyzer one by one from the test strip feeder. It is capable of feeding out hundreds of test strips one by one, at a rate of one every 16 seconds. This was the starting point for the complete automation of urine test strip measurement and was the component of much effort during the development phase.

The basic principle of the feeder has not changed over the past 30 years. There is a groove to ensure only one test strip is fed out onto the table at a time.

The table moves from left to right allowing the test strip to easily enter the groove and is fed under a dividing wall in the reagent housing, making sure that only a single test strip is offered up at a time. If this action is too quick, filter pads become separated from the base film and the test strip becomes useless. Yet, if this process is too slow, the test strips never come out. In the latest model, the grooved table has become a drum, and as it revolves it feeds out test strips.

Also two areas are available to store the test strips allowing the selection between two different types of strip. Also, the number of strips that can be loaded into the feeder has increased and a mechanism has been incorporated that can determine which way the strip is facing ensuring the test strips are always fed out facing up.

Two different types of test strips can be set in the feeder. Feeder mechanism It revolves like a drum to feed out only one test strip.

This is another area which received much attention and efforts during development. A single measurement is repeated at high speed every 16 seconds and in this 16 seconds, not only does the sample have to be applied to the test strip, but the nozzle must be cleaned prior to the next measurement.

If the nozzle cleaning is not performed adequately the current sample may become contaminated by traces of sample from the previous measurement. However, if the cleaning takes too long, there is a chance that cleaning fluid will remain in the nozzle and dilute the sample during aspiration. Our developers spent a good deal of energy racking their brains over how to achieve this delicate balance.

Of course it would have been easier if we had increased the amount of time available for each measurement, but it was a big challenge to achieve the best timing for all the necessary procedures within the limited 16 seconds. But then, developers struck upon the idea of having air segments inside the nozzle creating a barrier between sample and cleaning fluid, and between samples to reduce the risk of sample contamination. However, there was a disadvantage with the air-segment method.

The air would act like a buffer in the tubing but would increase and decrease as the machine tried to accurately move liquid around the system.

This proved to be a difficult problem. To cope with this, we added a mechanism that could effectively insert the air segment into the tubing during liquid movement. A special tube was introduced into the part that held the air segment and when switched to the tubing without the air segment it could perform aspiration, and switch back to the first air-segmented tube for cleaning.

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AUTION MAX™ AX-4030 Fully Automated Urine Chemistry Analyzer

Aution Max AX, an automated urine test-strip analyser, was evaluated in three centres. Method comparison, imprecision, carry-over, linearity, detection limit and drift studies were performed for glucose, protein, blood and leukocytes using Uriflet S 9UB strips. These strips enable measurement of pH, glucose, protein, blood, leukocytes, ketones, bilirubin, urobilinogen and nitrite. Specific gravity is determined by the refractive index method. Within-run and between-day imprecision, assessed using pooled urines and quality control materials, were good. No drift over 24 h or sample carry-over was observed.

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Evaluation of Aution Max AX-4280 Automated Urine Test-Strip Analyser

Skip to search form Skip to main content You are currently offline. Some features of the site may not work correctly. DOI: Abstract Aution Max AX, an automated urine test-strip analyser, was evaluated in three centres. Method comparison, imprecision, carry-over, linearity, detection limit and drift studies were performed for glucose, protein, blood and leukocytes using Uriflet S 9UB strips. These strips enable measurement of pH, glucose, protein, blood, leukocytes, ketones, bilirubin, urobilinogen and nitrite.

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