MEDICAL EQUIPMENT, AND METHOD FOR IMMUNITY COUNTERMEASURES OF MEDICAL EQUIPMENT

摘要

PROBLEM TO BE SOLVED: To provide an electrocardiograph capable of satisfying the MIL and STD demands and efficiently eliminating the influence of the noise led to a patient code with a simple constitution, and immunity countermeasures of the electrocardiograph. SOLUTION: A coupling plate 132 is connected to a floating GND of a patient input circuit substrate 131 opposite to a frame GND 135 across an insulated flake 133 to perform the electrostatic coupling to the frame GND 135 by using an extensive area and greatly improve the noise resistant characteristic of the substrate 131.