Blood fluid characteristics analysis instrument

Details Blood fluid characteristics analysis instrument Blood fluid characteristics analysis instrument

1998-04-13

1999-11-30

Kim, Robert H.

Optics: measuring and testing

Of light reflection

356 39, G01N 2155, G01N 3348

Patent

active

059952369

ABSTRACT:
An apparatus for enhancing the analysis of light reflected from a blood exposed reagent is described. Light from sources, such as LED's, is used to detect the levels of glucose and fructosamine in the blood exposed reagent. A special optical arrangement is used ot obtain optical signals indicative of the optically sensitive chemicals in the reagent. The optical beams from respective LED's are directed at a common surface of an optical element used to redirect the light onto the reagent and reflect portions onto a reference detector. A main detector is strategically located adjacent a surface of the optical element to detect reflections from the reagent. A control circuit is described with which the light from the LED light sources can be held at substantially constant levels despite factors tending to cause light level changes.

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