Detection Technology Based On The Principle Of Bioelectrical Impedance Cardiac Function

Heart disease is the highest death rate disease of human. Enhance the efficiency of premature diagnosis, control and treat it in good season is one of the best way to reduce the harm of it. Lung circulation and heart function examinations brought forward are based on this purpose. Lung circulation is one of inscapes of human circulation system. Many heart diseases, lung diseases and heart function incompleteness can cause its changes firstly or primarily. If we adopt certain methods to examine lung circulation and heart function, we could detect it prematurely and cure it in good season.In this passage, we accomplished the design and development of hardware and software of this apparatus. We also debugged it, and its effect is well. The primarily function of it is to judge if the heart is in the good circulation which is based on Right Chest Electric Admittance Plethysmogram(RCEAPm), and examine Pulmonary Circulation Admittance Plethysmography dynamicly. Another advantage of it is that person could be examined in freedom state. Therefore, in the detected Pulmonary Circulation Admittance Plethysmography, it can't avoid Respiratory Interference. To eliminate it, we adopt Digital Filter technology. It is the emphases of this passage. After simulated, the arithmetic is measured up.