VenoScreen® Measuring device for venous and arterial vascular diagnostics using Light-Ref lection-Rheography (LRR) and Photo-Plethysmography (PPG) non-invasive • automated • compact intuitive • self-calibrating • time-efficient

Measuring Methods Technical Data Light-Reflection-Rheography (LRR / D-PPG) is a non-invasive examination to measure the venous pump volume and the refilling time after a muscle pump test to diagnose the function of venous valves and the eff i ciency of the venous muscle pump. Therefore, non-visible infrared light is emitted into the skin surface of the lower legs and the absoption of light is measured. The changes, dependant on the venous blood volume in the surface veins, refect the processes in the deeper veins. Photo-Plethysmography (PPG) enables the non-invasive measurement of arterial pulse...