MEASURING DEVICE FOR DETERMINING AT LEAST ONE BLOOD SAMPLE PARAMETER Russian patent published in 2012 - IPC G01N21/05 G01N21/63 G01N21/64 G01N21/77 

FIELD: physics.

SUBSTANCE: invention relates to a measuring device for determining at least one parameter of a blood sample, with a flow-through measuring cell (1), in which there is at least one luminescence-optical sensor element (ST, SO, SG), which can be brought into contact with the blood sample, and at least one light source (4) for exciting the luminescence-optical sensor element and at least one photodetector (6) for receiving the luminescence radiation emitted by the luminescence-optical sensor element. The light source (4) and the photodetector (6) are located on opposite sides (7) and (8) of the flow-through measuring cell (1). According to the invention, at least one luminescence-optical sensor element (ST, SO, SG) is placed on an excitation side (7) of the flow-through measuring cell (1), which faces the light source (4). The light source (4) emits excitation radiation of wavelength less than 600 nm, while the luminescence radiation of the sensor elements (ST, SO, SG) lies in a wavelength range greater than 600 nm.

EFFECT: simple optical structure, high signal intensity, minimum signal background, synchronous photometric characteristic of the sample and simultaneous determination of arterial pO₂.

9 cl, 5 dwg