Telemedicine focuses on improving the quality of health care, particularly in out-of-hospital\nsettings. One of the most important applications is the continuous remote monitoring of vital\nparameters. Long-term monitoring of biopotentials requires skin-electrodes. State-of-the-art\nelectrodes such as Ag/AgCl wet electrodes lead, especially during long-term application, to\ncomplications, e.g., skin irritations. This paper presents a low-cost, on-demand electrode approach\nfor future long-term applications. The fully printed module comprises a polymeric substrate\nwith electrodes on a flexible membrane, which establishes skin contact only for short time in\ncase of measurement. The membranes that produce airtight seals for pressure chambers can be\npneumatically dilated and pressed onto the skin to ensure good contact, and subsequently retracted.\nThe dilatation depends on the pressure and membrane thickness, which has been tested up to 150 kPa.\nThe electrodes were fabricated in screen and inkjet printing technology, and compared during\nexemplary electrodermal activity measurement (EDA). The results show less amplitude compared to\nconventional EDA electrodes but similar behavior. Because of the manufacturing process the module\nenables high individuality for future applications.
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