ELECTROCARDIOGRAM MEASUREMENT APPARATUS

An electrocardiogram measuring device includes: a first second electrodes configured to receive a first and second electrocardiogram voltages of a first and second body parts in contact therewith, respectively; two amplifiers configured to receive the first and second electrocardiogram voltages from the first and second electrodes; a third electrode configured to contact a third body part and transfer a third electrocardiogram voltage of the third body part; an electrode driver configured to receive the third electrocardiogram voltage and output a driving voltage; a fourth electrode placed adjacent to one of the three electrodes and configured to receive and transmit the output of the electrode driver to one of the three body parts in contact therewith; an AD converter connected to an output terminal of each of the two amplifiers; a microcontroller configured to receive the two digital signals; and a communication means configured to transmit the two digital signals.