Patent ID: 9463457
Filing Date: 2016-10-11
CPC Classification: B01L,G01N

Claim Text:
1. A measuring cell for carrying out chemical and biochemical analyses, the cell comprising: a cylindrical vessel having a bottom and an outer wall having a transparent measuring window; and a solid inner part being a piston and being capable of moving up and down inside the vessel; wherein the outer wall of the vessel having substantially the same height as the piston and the vessel having a liquid compartment and a waste storage at the bottom of the vessel and the liquid compartment and waste storage being separated from each other by a vertical wall shorter than the outer wall of the vessel and wherein the liquid compartment is filled with a washing reagent; the active surface area comprising in dry stage components and reagents necessary to carry out the analysis, wherein the active surface area is located on the piston such that when the piston is in the measuring position the active surface area is in the liquid compartment; the washing reagent washing the active surface area containing the dry stage components, reagents and the sample when the piston is pressed down to the measuring position, and the washing liquid flowing to the waste storage over the wall separating the liquid compartment and the waste storage; and wherein the cell transforms from an initial preparedness stage to a measuring stage when the piston is pressed down and the active surface is washed with washing liquid and a reaction on the active surface area creates a measurable signal that can be measured through the window of the outer wall and the signal is correlated to an amount of an analyte in the sample.