A Multichannel EMG System for Spatial Measurement of Diaphragm Activities

An important aspect of mechanical ventilation is the recognition and quantification spontaneous respiratory effort. However, a measurement flows pressures often used for this purpose prone to error. A promising alternative detect diaphragmatic contractions, directly. method recently proposed acquire diaphragm electromyography (EMG) signals using surface electrodes. limited by disturbances electrode placements some applications in which patient moving, such as rehabilitation or breathing training. In work, we present novel noninvasive that addresses these problems. This based on dry belt, can be comfortably derive EMG from thorax, combination with developed electrical system. The modular multichannel system capable simultaneously deriving digitizing 32 differential channels sending them personal computer (PC). specific digital signal processing chain allows combining data into one robust overall signal. addition, derived thorax obtain information regarding spatiotemporal propagation EMG. To verify functionality, characterized. Subsequently, subject measurements are performed. From these, identified. For better visualization, graphically displayed 3-D model. it shown how all control ventilators.