A non-invasive procedure and an apparatus for determining the hemoglobin contentof blood

摘要

A non-invasive procedure for determining the hemoglobin content of blood plus apparatus for accomplishing the procedure. The invention relates to a magnetic procedure to evaluate the paramagnetic liquid blood, through the use of magnetic ac fields, penetrating the blood samples. After the blood volume is detected, the magnetic material constant is evaluated by high selective oscillator circuits and very fast electronics. This offers a gentle non-invasive evaluation method for the hemoglobin content in the blood used in order to measure changes in oxygen supply or to detect internal bleeding.