Medical Spirometer for Diagnosing COPD Base on the Measurement of FVC and FEV1

Abstract

Lung is one of the vital respiratory organs in the human body. Where during respiration, there is a process of gas exchange in the lungs by taking oxygen (O2) from the air and releasing carbon dioxide (CO2) into the air. Because in the process of respiration involves air in the surrounding environment, the more contamination of air is inhaled, can cause various lung diseases. If the lung diagnosis is done early, then lung disease can get health care earlier. Chronic Obstructive Pulmonary Disease (COPD) is a type of disease that blocks the flow of air into the lungs due to swelling and mucus or phlegm, so that the sufferer has difficulty breathing. In making this research, we want to make a design tool to detect COPD and determine its severity using medspiro (medical spirometer). COPD can be diagnosed by measuring the value of Forced Expiratory Volume in One Second (FEV1), Forced Vital Capacity (FVC) and comparing it with predictive values of FVC and FEV1. The results obtained from the manufacture of spirometers have FVC measurement errors of 5.8950%, and FEV1 measurement errors of 10.5030%.