Wearable Bioimpedance Measuring Devices

• Main Author: Morcelles K.F.*
• Publication Date: 2022
• Other Authors: Bertemes Filho, Pedro
• Format: Book part
• Language: eng
• Source: Repositório Institucional da Udesc
• Download full: https://repositorio.udesc.br/handle/UDESC/3408

© 2022, The Author(s), under exclusive license to Springer Nature Switzerland AG.Medical wearable technologies have been growing since the last two decades with the launch of new generation diagnostic devices, due to its mobility and low cost. Electrical Bioimpedance (BIA) technique has been widely used for being considered one of such innovative technologies, contributing for lowing costs and time in the characterization of biological materials. BIA is considered an intelligence support tool in medical and biological applications, such as: detection of cancerous tissues, body composition, blood glucometer, water and bovine milk quality meter. BIA devices have promising advantages, such as simplicity, sensitivity, selectivity, low detection limit, low cost, low power consumption and miniaturization. However, in some cases, the diagnostic feature with impedance measurements requires a mathematical model to reduce possible uncertainty values, as well as an accurate hardware for working wireless at low power supply. Thus, this book chapter focus in a generic wearable bioimpedance, presenting the basic concepts, definition, main measuring circuits and the models for data analysis. It also contains a brief review of some medical wearable applications using BIA, discussing advantages and limitations of these devices.