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This session will provide a brief overview of the IEEE Standards development process from securing sponsorship, submitting the project authorization request (PAR), forming the working group, to drafting the standard. The process continues with the invitation-to-ballot, then the Review Committee evaluation and finally, the Final Vote from the Standards Board. As an example, the session will include...
Non-invasive measurement of beat-to-beat arterial blood pressure (BP) is an interesting but currently unsolved topic in long-term physiological monitoring by wearable devices and body sensor networks. Although it is suggested that pulse transit time (PTT) is related to and can be used to estimate BP, few studies showed how their relationship changes over time. This study reported the beat-to-beat...
This article discusses some of the unique demographic and epidemiological changes that China faces. As China is still a developing country, most of its people cannot afford expensive healthcare solutions. Especially in the poor rural areas, healthcare service is a luxury for some people. Therefore, this article summarizes several key strategies to reduce medical expenditures at the national level...
To meet the needs of the increasingly aging population, development of wearable medical devices and body sensor networks technologies for applications in telemedicine and mobile health are imperative. In this direction, we have developed a cuff-less and noninvasive pulse transit time (PTT)-based approach to overcome the shortcomings of conventional invasive or cuff-based blood pressure (BP) measurement...
The pulse transit time (PTT)-based approach has been proposed as a noninvasive and cuffless alternative to the conventional occluding-cuff approaches to be used in wearable medical devices for long-term and continuous monitoring of blood pressure (BP). Nevertheless, the PTT-based technique requires an individualized calibration procedure. In order to derive a simple procedure for estimating individualized...
Blood pressure (BP) can be measured cufflessly and noninvasively by using pulse transit time, which is obtained from simultaneously recorded electrocardiogram (ECG) and photoplethysmogram (PPG). To apply this BP monitoring technique in daily life, an office chair was modified into a contactless and cuffless BP-monitoring device using e-textile materials. In this study, twelve normotensive subjects,...
The two widely used standards for validating the conventional cuff-based BP devices are those set up by the American Association for the Advancement of Medical Instrumentation (AAMI) and the British Hypertension Society (BHS) respectively. It was reported that although both standards work well for most BP devices, they do not agree with each other in all circumstances. Previous attempts to model the...
This paper proposes a health-shirt (h-Shirt) using e-textile materials for long-term and continuous monitoring of physiological parameters, including arterial blood pressure (BP) by a cuffless approach. BP measurements using the h-Shirt and the setup of a calibration technique for this approach were tested on 10 and 5 subjects respectively. The results demonstrated the potential of integrating the...
The onset of second heart sound is triggered by the closure of aortic valve due to the interaction of left ventricle and arterial system. Noninvasive experiments found that RS2 defined by the time delay from the peak of ECG R wave to the onset of the second heart sound had a close inverse correlation with arterial systolic blood pressure. However, no theoretical study has been carried out to investigate...
The onset of second heart sound is triggered by the closure of aortic valve due to the interaction of left ventricle and arterial system. Noninvasive experiments found that RS2 defined by the time delay from the peak of ECG R wave to the onset of the second heart sound had a close inverse correlation with arterial systolic blood pressure. However, no theoretical study has been carried out to investigate...
Previous studies have shown that it is possible to estimate pulmonary and systemic blood pressure using the spectral information of the second heart sound. A mathematical model for the vibration of the closed aortic valve is proposed in the paper with the introduction of the nonlinear elasticity of the aortic wall tissue. Based on the parametric analysis, the effect of the aortic blood pressure at...
Previous studies have shown that it is possible to estimate pulmonary and systemic blood pressure using the spectral information of the second heart sound. A mathematical model for the vibration of the closed aortic valve is proposed in the paper with the introduction of the nonlinear elasticity of the aortic wall tissue. Based on the parametric analysis, the effect of the aortic blood pressure at...
It is suggested using wearable medical devices and sensors as the nodes of body sensor networks (BSN) could allow better long-term monitoring of health condition. Nonetheless, the protocol and criteria for validating these nodes in clinical settings is often overlooked. By using the validation of blood pressure (BP) measurement devices as an example, this paper reveals the need for new standards for...
Pulse transit time (PTT) has attracted great interest for developing continuous and noninvasive blood pressure (BP) monitoring devices. This study investigated the effect of finger cold exposure on PTT. 13 healthy and normotensive subjects, including 6 males and 7 females took part in the experiment. Cold exposure was performed by asking subjects to immerse one finger into cold water (9plusmn2degC)...
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