Patent ID: 6100966
Filing Date: 2000-08-08
Classification: G01N

Abstract:
A diagnostic device for the detection of an analyte in a bodily fluid, comprising a light source (2), a porous carrier (1) with a bonded reagent capable of reacting with an analyte and light detector (3), arranged in such a way thatlight emitted from the light source may enter into the porous structure of the carrier, travel through the carrier and exit the carrier at a position suitable to be detected by the detector, andthe light absorbing properties of the carrier are altered dependent on the analyte concentration when the bodily fluid containing the analyte enters the carrier,wherein the light detector is arranged in such a way that it cannot receive light either directly from the light source or light which is reflected from the surface of the porous carrier, but instead can receive light that has travelled a prolonged path through the porous structure of the carrier.