On the possibility of detecting the electrical bioimpedance of human body by using non-contact electrodes in capacitive connection

Metshein, Margus; Gordon, Rauno

doi:10.1109/bec.2016.7743756

Cited by 2 publications

(3 citation statements)

References 7 publications

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“…In the case of 10 MHz, the amplitude of the signal of RR in the case of chosen EPC of ES1 is two times lower than in other frequencies. This can be explained by the influence of the parasitic capacitances and inductances, caused for example by the length of the wires [13].…”

Section: Discussionmentioning

confidence: 99%

“…The usage of sine wave as excitation signal and the switching onto battery power will be researched. The plans include also the development of next generation of electrode shirt according to the previously published [13] and the current results, with the attention to the influence and reduction of the motion artifacts. The final outcome is presumed to be constituted as a wearable device for monitoring the RR and HR.…”

Section: Discussionmentioning

confidence: 99%

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Realization and Evaluation of the Device for Measuring the Impedance of Human Body for Detecting the Respiratory and Heart Rate

Metshein¹,

Parve²,

Annus³

et al. 2017

ElAEE

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The idea of a device for measuring the impedance of human body with the target of monitoring the respiratory and heart rate is proposed in this paper. Hardware realization of the proposed idea is described with the illustration of the custom designed printed circuit board. Preparation of electrode shirts with various electrode placement configurations is introduced. Series of experimental measurements in the cases of dynamic bioimpedance reference and single human subject are described and results shown to evaluate the custom made device. The excitation frequencies in the range of 2 MHz-20 MHz are utilized in the cases of large foil and textile electrodes to focus on the use of the capacitive connection to the object-constituting the novelty of the current paper. The results are analysed concerning the dependency of the visual availability of the interesting signal of breathing and heart rate of the material and the placement of the electrodes. Availability of breathing is found to be evident in all of the experimented cases. The heart rate is found to be challenging because of the presence of high frequency noise.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Realization and Evaluation of the Device for Measuring the Impedance of Human Body for Detecting the Respiratory and Heart Rate

Metshein¹,

Parve²,

Annus³

et al. 2017

ElAEE

Self Cite

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show abstract

“…As the contact electrodes like Ag/AgCl are not suitable for continuous use, new methods based on conductive textiles and other noncontact coupling methods are being investigated. The use of noncontact electrodes can solve this problem, but it raises others as a greater sensitivity to the artifacts of movement and the electrical conditions of the environment and the human body [350]. Although the specific placement of the electrodes for BIA, ICG, EIT, and TIP applications has been widely discussed in the literature, there is a lack of information on the performances and issues about their application in a compact configuration more suitable for a portable environment, such as a patch or a textile garment [351].…”

Section: Future Challenges Of Bioimpedancementioning

confidence: 99%

Fundamentals, Recent Advances, and Future Challenges in Bioimpedance Devices for Healthcare Applications

2019

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This work develops a thorough review of bioimpedance systems for healthcare applications. The basis and fundamentals of bioimpedance measurements are described covering issues ranging from the hardware diagrams to the configurations and designs of the electrodes and from the mathematical models that describe the frequency behavior of the bioimpedance to the sources of noise and artifacts. Bioimpedance applications such as body composition assessment, impedance cardiography (ICG), transthoracic impedance pneumography, electrical impedance tomography (EIT), and skin conductance are described and analyzed. A breakdown of recent advances and future challenges of bioimpedance is also performed, addressing topics such as transducers for biosensors and Lab-on-Chip technology, measurements in implantable systems, characterization of new parameters and substances, and novel bioimpedance applications.

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On the possibility of detecting the electrical bioimpedance of human body by using non-contact electrodes in capacitive connection

Cited by 2 publications

References 7 publications

Realization and Evaluation of the Device for Measuring the Impedance of Human Body for Detecting the Respiratory and Heart Rate

Realization and Evaluation of the Device for Measuring the Impedance of Human Body for Detecting the Respiratory and Heart Rate

Fundamentals, Recent Advances, and Future Challenges in Bioimpedance Devices for Healthcare Applications

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