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Tele-health is an inter-disciplinary area where the delivery of health, medical information and services over large and small distances is possible by combining electronic information with communication technologies. Deaths from cardiovascular diseases have decreased substantially over the past two decades, largely as a result of advances in acute care and cardiac surgery. These developments have...
Cardiovascular Disease (CVD) is one of the leading causes of death which underlie one third of the world's death. The online monitoring and early warning message to cardiovascular system might protect sudden heart disease and save human's life. Scientists have used various vital signs to detect and predict CVD, such as blood pressure (BP), electrocardiogram (ECG), sphygmogram (SPG) and pulse wave...
The monitoring blood pressure at home is an important part of managing hypertension. We have developed a home healthcare system to monitor blood pressure. Our system has operated for about 1 year. In this study, we focused on blood pressure monitoring and discussed the motivation of subjects, and the importance of monitoring. We tested two different locations: one was a non-interventional location...
We studied the feasibility of application of consecutive hydrostatic pressure changes to assess accuracy of measurement of finger blood pressure changes in 11 normal volunteers. The results demonstrated that specific physiological responses to hand postural changes were small in healthy subjects and the consecutive hydrostatic pressure changes of controlled magnitude can be applied to assess accuracy...
A programmable hysteresis comparator with tunable asymmetry for blood pressure peak detection is proposed. The hysteresis can be controlled by two programmable width transistors independently. The total current for the designed comparator is approximately 3.4 ??A with a 3.0 V supply. The hysteresis change does not affect the comparator's power consumption. The measured results show that with the flexible...
This paper presents a novel implementation methodology of ISO/IEEE11073 standards for use in real monitoring platforms based on patterns paradigm. These monitoring platforms include several medical devices based on low voltage-low power microprocessors. As a proof of the concept, INTENSA project which aims to develop and evaluate a heart failure follow-up interoperable system including weigh scale,...
In this paper, an unconstrained and noninvasive system to detect heart rate (HR), respiratory rate and extract pulse arrival time (PAT) during sleep is proposed. The system consists of PPG sensor module embedded in a pillow and CC-ECG (capacitor coupled-ECG) sensor module. From the PPG sensor, we acquired heart rate and respiratory rate during sleep with simple peak detection algorithm. Besides, by...
We studied the feasibility of application of consecutive hydrostatic pressure changes to assess accuracy of measurement of finger blood pressure changes in 11 normal volunteers. The results demonstrated that specific physiological responses to hand postural changes were small in healthy subjects and the consecutive hydrostatic pressure changes of controlled magnitude can be applied to assess accuracy...
Intradialytic hypotension (IDH) is a much common complication during a hemodialysis. The prevalence of IDH is about 10-50%. Elderly people, patients with diabetes, and cardiovascular dialysis patients have the highest rate of incidences. IDH may lead to nausea, vomiting, or anxiety. In some severe cases, there will be accident like shock and death. The purpose of this paper is to integrate the technologies...
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