ELECTROCHEMICAL BIOSENSOR WITH IMPROVED ACCURACY

摘要

The present invention relates to an electrochemical biosensor for measuring blood glucose concentration with improved accuracy in the measurement of hematocrit. The electrochemical biosensor according to the present invention comprises: a first electrode unit for correcting a hematocrit measurement value; a second electrode unit for measuring glucose concentration; and an insulation cover thinner than an operating electrode and an auxiliary electrode, so as to not only enable a first operating electrode and a first auxiliary electrode of the first electrode unit exposed to a blood sample to have the same area, but also maintain a constant spacing between the first operating electrode and the first auxiliary electrode. Further, an electrode area and electrode spacing can be kept constant by means of the insulation cover even when a location error may occur during electrode printing, and therefore the accuracy of a hematocrit measurement value may be improved, and the accuracy of a measurement value of a blood glucose concentration in which the hematocrit measurement value is used for a correction may be further improved.