Wearable and Noninvasive Device for Integral Congestive Heart Failure Management in the IoMT Paradigm.

Noninvasive remote monitoring of hemodynamic variables is essential in optimizing treatment opportunities and predicting rehospitalization in patients with congestive heart failure. The objective of this study is to develop a wearable bioimpedance-based device, which can provide continuous measurement of cardiac output and stroke volume, as well as other physiological parameters for a greater prognosis and prevention of congestive heart failure. The bioimpedance system, which is based on a robust and cost-effective measuring principle, was implemented in a CMOS application specific integrated circuit, and operates as the analog front-end of the device, which has been provided with a radio-frequency section for wireless communication.

A wireless multi-channel bioimpedance measurement system for personalized healthcare and lifestyle.

Miniaturized, noninvasive, wearable sensors constitute a fundamental prerequisite for pervasive, predictive, and preventive healthcare systems. In this sense, this paper presents the design, realization, and evaluation of a wireless multi-channel measurement system based on a cost-effective high-performance integrated circuit for electrical bioimpedance (EBI) measurements in the frequency range from 1 kHz to 1 MHz. The resulting on-chip spectrometer provides high measuring EBI capabilities and together with a low-cost, commercially available radio frequency transceiver device.

Cork quality classification system using a unified image processing and fuzzy-neural network methodology.

Cork is a natural material produced in the Mediterranean countries. Cork stoppers are used to seal wine bottles, Cork stopper quality classification is a practical pattern classification problem. The cork stoppers are grouped into eight classes according to the degree of defects on the cork surface.

Electronic model as an aid in teaching fetal heart rate monitoring.

A model of the uterus-placenta-fetus system was designed using an electronic device which proportions at its outputs the representative signals of the fetal heart rate (FHR) and uterine contractions (UC). The uterus subsystem provides a voltage variable in time similar to the pressure of the UC. The placenta subsystem is controlled by the difference between the UC and the maternal arterial pressure as well as by the time in which the blood flow to the fetus is reduced.