A Low-Power Bio-Potential Acquisition System with  Flexible PDMS Dry Electrodes for Portable Ubiquitous Healthcare Applications

Chen, Chih Yuan; Chang, Chia‐Lin; Chang, Chih Wei; Lai, Shin Chi; Chien, Tsung Fu; Huang, Hong; Chiou, Jin-Chern; Luo, Ching Hsing

doi:10.3390/s130303077

Cited by 57 publications

(25 citation statements)

References 28 publications

(38 reference statements)

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“…The possible materials used for dry-electrode systems in wearable long-term ECG devices is still an open issue. Several studies have proposed textile and flexible electrodes [7,17], non-contact capacitive electrodes [13,14,18,19] and traditional bio-compatible metallic disc electrodes [20]. In particular, the works of Chi et al [8] and Meziane et al [21] present extensive literature reviews on dry-electrode technologies for ECG recording applications.…”

Section: Dry Ecg Electrode Systemmentioning

confidence: 99%

Arm-ECG Wireless Sensor System for Wearable Long-Term Surveillance of Heart Arrhythmias

2019

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This article presents the devising, development, prototyping and assessment of a wearable arm-ECG sensor system (WAMECG1) for long-term non-invasive heart rhythm monitoring, and functionalities for acquiring, storing, visualizing and transmitting high-quality far-field electrocardiographic signals. The system integrates the main building blocks present in a typical ECG monitoring device such as the skin surface electrodes, front-end amplifiers, analog and digital signal conditioning filters, flash memory and wireless communication capability. These are integrated into a comfortable, easy to wear, and ergonomically designed arm-band ECG sensor system which can acquire a bipolar ECG signal from the upper arm of the user over a period of 72 h. The small-amplitude bipolar arm-ECG signal is sensed by a reusable, long-lasting, Ag–AgCl based dry electrode pair, then digitized using a programmable sampling rate in the range of 125 to 500 Hz and transmitted via Wi-Fi. The prototype comparative performance assessment results showed a cross-correlation value of 99.7% and an error of less than 0.75% when compared to a reference high-resolution medical-grade ECG system. Also, the quality of the recorded far-field bipolar arm-ECG signal was validated in a pilot trial with volunteer subjects from within the research team, by wearing the prototype device while: (a) resting in a chair; and (b) doing minor physical activities. The R-peak detection average sensibilities were 99.66% and 94.64%, while the positive predictive values achieved 99.1% and 92.68%, respectively. Without using any additional algorithm for signal enhancement, the average signal-to-noise ratio (SNR) values were 21.71 and 18.25 for physical activity conditions (a) and (b) respectively. Therefore, the performance assessment results suggest that the wearable arm-band prototype device is a suitable, self-contained, unobtrusive platform for comfortable cardiac electrical activity and heart rhythm logging and monitoring.

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Section: Dry Ecg Electrode Systemmentioning

confidence: 99%

Arm-ECG Wireless Sensor System for Wearable Long-Term Surveillance of Heart Arrhythmias

2019

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“…The SMP chip, 127.8 mm in length, 85.5 mm in width and 2 mm in height, was fabricated in a laminated PMMA slide on the carbon dioxide laser engraving machine (Feilijia ® H4030, Liaocheng, China) [20]. Every chamber is around 1.1 mm in length, 1 mm in width and 0.4 mm in depth, which volume is about 4.4 × 10 −1 m 3 .…”

Section: Methodsmentioning

confidence: 99%

Design and Fabrication of Low-Cost 1536-Chamber Microfluidic Microarrays for Mood-Disorders-Related Serological Studies

Zhao

Dong²

2013

Sensors

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Mood disorders are common mental diseases, but physiological diagnostic methods are still lacking. Since much evidence has implied a relationship between mood disorders and the protein composition of blood sera, it is conceivable to develop a serological criterion for assisting diagnosis of mood disorders, based on a correlative database with enough capacity and high quality. In this pilot study, a low-cost microfluidic microarray device for quantifying at most 384 serological biomarkers at the same time was designed for the data acquisition of the serological study. The 1,536-chamber microfluidic device was modeled on a 1,536-well microtiter plate in order to employ a common microplate reader as the detection module for measuring the chemiluminescent immunoassay tests on the chips. The microfluidic microarrays were rapidly fabricated on polymethylmethacrylate slides using carbon dioxide laser ablation, followed by effective surface treatment processing. Sixteen types of different capture antibodies were immobilized on the chips to test the corresponding hormones and cytokines. The preliminary tests indicated that the signal-to-noise ratio and the limit of detection of microfluidic microarrays have reached the level of standard ELISA tests, whereas the operation time of microfluidic microarrays was sharply reduced.

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“…Other authors have surveyed literature or developed prototypes using WBAN and complementary technology to more efficiently acquire ECG and other patient vitals, as well as integrate data with smart sensing systems, telemedicine hubs, and fourth-generation (4G) telecardiology. 5,12,33,34,38 Yilmaz et al 37 reviewed recent progress involving noninvasive monitoring technologies for managing chronic diseases such as diabetes. Impedance spectroscopy can be used to measure changes in electrical properties of blood noninvasively, which then can be translated to blood glucose readings through the use of an arm module affixed with electrode sensors.…”

Section: Featuresmentioning

confidence: 99%

Review: Emerging Trends in Healthcare Adoption of Wireless Body Area Networks

Rangarajan¹

2016

Biomedical Instrumentation & Technology

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Real-time personal health monitoring is gaining new ground with advances in wireless communications. Wireless body area networks (WBANs) provide a means for low-powered sensors, affixed either on the human body or in vivo, to communicate with each other and with external telecommunication networks. The healthcare benefits of WBANs include continuous monitoring of patient vitals, measuring postacute rehabilitation time, and improving quality of medical care provided in medical emergencies. This study sought to examine emerging trends in WBAN adoption in healthcare. To that end, a systematic literature survey was undertaken against the PubMed database. The search criteria focused on peer-reviewed articles that contained the keywords "wireless body area network" and "healthcare" or "wireless body area network" and "health care." A comprehensive review of these articles was performed to identify adoption dimensions, including underlying technology framework, healthcare subdomain, and applicable lessons-learned. This article benefits healthcare technology professionals by identifying gaps in implementation of current technology and highlighting opportunities for improving products and services.

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A Low-Power Bio-Potential Acquisition System with Flexible PDMS Dry Electrodes for Portable Ubiquitous Healthcare Applications

Cited by 57 publications

References 28 publications

Arm-ECG Wireless Sensor System for Wearable Long-Term Surveillance of Heart Arrhythmias

Arm-ECG Wireless Sensor System for Wearable Long-Term Surveillance of Heart Arrhythmias

Design and Fabrication of Low-Cost 1536-Chamber Microfluidic Microarrays for Mood-Disorders-Related Serological Studies

Review: Emerging Trends in Healthcare Adoption of Wireless Body Area Networks

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