Download or read book Wireless Sleep Apnea Monitoring Device written by Vigan Shabani and published by . This book was released on 2007 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Microwave Sleep Apnoea Monitoring written by Nemai Chandra Karmakar and published by Springer. This book was released on 2017-12-21 with total page 307 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents the design, development and field trials of radio frequency based wireless monitoring system for sleep apnoea patients. It contains 4 major areas including general background of wireless monitoring technology and MIMO in wireless body area network (WBAN), microwave hardware designs, virtual MIMO in WBAN and hardware system level implementation and field trials. At components level, this book presents the design theory, process and examples of bandpass filters, lowpass filters, low profile patch antennas, power amplifiers and oscillators which are the key elements in transducer designs in the body area network and cooperative communication wireless sensor network system. At system level, this book features the hardware integration, field trial and network coding techniques. This book also gives a presentation of virtual MIMO applications, e.g. MIMO implementation using FPGA, correlation coefficient measurement. The book will create impact in the fields of wireless monitoring technology in biomedical engineering, which have been growing exponentially.

Download or read book Novel Technique in Sleep Apnea Monitoring written by Vishnoukumaar Sivaji and published by . This book was released on 2014 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sleep apnea is a condition in which there are periods of pauses in breathing called apnea during sleep. It is usually diagnosed in sleep labs with a polysomnography system which monitors various parameters during sleep. Portable sleep apnea monitors are becoming common for use at homes. Commercially available sleep apnea monitors connect to a base station using several cables which leads to patient discomfort arising from restriction of freedom of movement. This thesis explores the feasibility of a completely wireless and mostly battery-free monitor that is small and inconspicuous to the patient while sleeping. As a proof of concept, the P2110 RF power harvester evaluation board from Powercast has been used to wirelessly power the sensor nodes and to send their data to a base station using a 2.4GHz radio. The proposed final application would involve a custom IC for power harvesting, amplification and telemetry.

Download or read book Portable monitoring devices for diagnosis of obstructive sleep apnea at home written by and published by . This book was released on 2009 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The costs of using PSG in a sleep treatment of obstructive sleep apnea at laboratory are high because of the cost of the home? [...] As a result, the requirement of using laboratory The accurate diagnosis and monitoring of OSA PSG to obtain an accurate diagnosis of OSA has are important in its management, especially 17 been debated for years, and the use of portable among patients with severe disease. [...] Therefore, portable monitoring devices calculate the respiratory disturbance index (RDI) by dividing the sum of The costs that are associated with PSG apneas and hypopneas by the total monitoring investigations in a sleep laboratory are high time.20,27 There is some confusion surrounding because of the examination time required, the the RDI because alternative definitions28,29 are 1 Portable Monit [...] To improve efficiency and reduce 2. What is the accuracy of using portable the time spent in the laboratory, split-night monitoring devices for the diagnosis of studies are commonly used so that diagnosis and 41-43 obstructive sleep apnea at home compared CPAP titration occur on the same night. [...] What is the accuracy of using portable One RCT45 compared the utility of home monitoring devices for the diagnosis of diagnosis using the Remmers Sleep Recorder obstructive sleep apnea at home compared portable monitor (SagaTech, Calgary, AB, with laboratory-based testing?

Download or read book What is Sleep Apnea written by Oscar Arias and published by Oscar Arias. This book was released on 2014-06-20 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt: Does this sound like you? * Falling asleep at work? * Tired all the time? * Easily irritated? * Spouse/room mates complain about your snoring? Then you may have sleep apnea! According to the National Sleep Foundation, more than 18 million adults in America have sleep apnea, many of these people are unaware that they even have it! Untreated, sleep apnea can increase your risk for other serious medical conditions such as heart attacks, strokes, and even death! This book is an introduction to sleep apnea, you'll learn the symptoms, risks, and available treatments for sleep apnea. This book is a great resource for those who think that they (or a loved one) might have sleep apnea. We cover the treatements for sleep apena incuding CPAP therapy, Provent, and surgical options.

Download or read book Portable Monitoring Devices for Diagnosis of Obstructive Sleep Apnea at Home written by Sarah Ndegwa and published by . This book was released on 2009 with total page 25 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Effectiveness of Portable Monitoring Devices for Diagnosing Obstructive Sleep Apnea written by Linda J. Lux and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: CONTEXT: Obstructive sleep apnea (OSA) is a serious public health problem. Approximately 2 percent to 4 percent of middle-aged women and men, respectively, have this condition; the majority are undiagnosed. Undiagnosed and thus untreated, OSA is associated with significant morbidity and mortality. Effective treatment modalities should not be applied without an accurate diagnosis of OSA, but medical history and physical examination are insufficient to establish the diagnosis or its severity. Using the accepted reference standard test - attended, in-laboratory polysomnography (PSG) - can be expensive and involve long waiting times for studies, so various groups have developed portable technologies to classify patients in terms of the presence or absence of OSA and, for the former, level of severity. Such devices are intended for use in sleep laboratories or in the home. OBJECTIVES: We updated a 2002-2003 systematic review of OSA diagnostic testing to address the key questions of how portable sleep testing devices compared to PSG in diagnosing OSA and, assuming equivalent effectiveness, what sleep and physiologic factors and what patient and technician conditions were important to measure or have in place. The Centers for Medicare and Medicaid Services commissioned the Agency for Healthcare Research and Quality to provide a technology assessment that addressed the following: 1. How does the diagnostic test performance of unattended portable multi-channel home sleep testing compare to facility-based polysomnography in the diagnosis of obstructive sleep apnea?1.1. If unattended portable multi-channel home sleep testing is as effective as polysomnography in the diagnosis of obstructive sleep apnea, which parameters of sleep and cardiorespiratory function (i.e., sleep staging, body position, limb movements, respiratory effort, airflow, oxygen saturation, electrocardiogram) are required?1.2. If unattended portable multi-channel home sleep testing is as effective as polysomnography in the diagnosis of obstructive sleep apnea, what conditions (i.e., patient education, technician support) are required so that it is done correctly in the home? DATA SOURCES: We searched for studies published since the original review (i.e., from 2002 on) in MEDLINE, The Cochrane Library, the National Guidelines Clearinghouse, and the International Network of Agencies for Health Technologies Assessment (INAHTA) database; we also handsearched bibliographies of included articles. In MEDLINE, we used the following main terms in various combinations: polysomnography, oximetry, physiologic monitoring, and sleep apnea (with limits of human, adults, and English language); we refined searches using the terms airway resistance, upper airway resistance syndrome, respiratory disturbance index, autoset, snoring, and respiratory events related arousals as well as reproducibility of results, predictive value of tests, and sensitivity and specificity. STUDY SELECTION: We included studies of humans, both sexes, ages 18 and over, with any diagnosis of OSA; studies of any type of portable device used for diagnosis that also included a reference standard test (PSG or another acceptable test for diagnosing OSA); studies in which each analysis group, after the end of the study, included at least 10 subjects; and studies published in English. Specifically excluded were studies in which results from portable devices were not compared with results from PSG. Also excluded were reviews, meta-analyses, case reports, abstracts, letters, and editorials. DATA EXTRACTION: One investigator recorded abstracted data onto data abstraction forms used for the original review and created detailed evidence tables. A second investigator checked entries against the original articles. One investigator assigned initial classifications for level of evidence and presence or absence of eight quality indicators and a second investigator reviewed these; disagreements were resolved by consensus discussion. A third investigator combined level of evidence and quality indicators into a summary quality grade; the other investigators reviewed these grades, with differences resolved by consensus. DATA SYNTHESIS: We identified 172 unique titles and abstracts from the literature searches, and excluded 157 articles as not meeting inclusion criteria; reasons included the fact that PSG studies were not performed on all patients, that the portable device was an electroencephalogram (EEG), and that the study assessed a telemedicine approach that did not compare a portable device to the PSG. We obtained 15 articles for full review and retained 12 for inclusion here. These 12 studies fell into four categories: Type 3 devices used in laboratory settings (four studies); Type 3 devices tested in homes whether or not they were also tested in facilities (two studies); Type 4 devices in laboratory settings (six studies); and Type 4 devices tested in homes (whether or not in facilities, three studies). Type 3 devices include a minimum of four channels and must monitor at least two channels of respiratory movement or respiratory movement and airflow, and heart rate or ECG and oxygen saturation to define an event; generally, no electroencephalogram (EEG) signals are monitored. Level 4 devices include only one or two channels of physiologic signals and generally use only one channel (either saturated oxygen or airflow) to define a sleep-disordered breathing event; no EEG signals are monitored. Most articles provided only comparisons of the results from portable monitoring done simultaneously with full PSG in the laboratory, i.e., "a side-by-side" study. The in-laboratory simultaneous studies, which used technologies identical or similar to those in the previous review, produced sensitivity and specificity results for diagnosing OSA similar to those reported earlier; that is, the newer studies produced no meaningful changes in the level or quality of evidence for the effectiveness for home monitoring devices in diagnosing OSA. Only four of these studies (two of Type 3 and two of Type 4 devices) were graded good or fair quality. Ultimately, we focused on the five studies with in-home testing, because the questions we were asked concerned the effectiveness of unattended monitoring in the home. Four in-home studies employed technologies similar or identical to those reviewed before; of these, two studies (one of good quality, one poor) used Type 3 devices and two (one of fair quality , one poor) used Type 4 devices. Reported sensitivity and specificity values were similar to those from older studies, so the newer studies yielded no major information that would change the previous basic conclusions about portable devices used in the home. The one in-home study using a new technology, of fair quality, produced likelihood ratios that indicated that the test had little effect in changing pretest probabilities of the presence or absence of OSA. Reported data loss in the home studies ranged from a low of 3 percent to a high of 33 percent, in a subgroup of patients who did their own hookup. Automated scoring appeared to agree less closely with the reference standard than manual scoring. Internal validity of the five in-home studies was mixed: one study of good quality, two of fair quality, and two of poor quality. In terms of external validity, the patient populations were mostly male, middle-aged, and with high pretest probabilities of OSA; comorbidities were generally not specified or taken into account in analyses. Finally, these studies typically did not evaluate the accuracy of clinical management decisions based on portable results compared to those based on the reference standard. CONCLUSIONS: This newer body of evidence does not materially change earlier findings regarding in-home devices for diagnosing OSA. Choices of cutoffs for determining OSA by AHI or RDI differed widely across these studies, making cross-study comparisons impossible. The better studies yielded sensitivity and specificity values (or LRs) that provided modes changes in the probability of OSA over the pretest probability. In studies that directly compared automated versus manual scoring from home monitoring devices, manual scoring correlated better with data from laboratory PSG than did automated scoring.

Download or read book Home Portable Monitoring for Obstructive Sleep Apnea an Issue of Sleep Medicine Clinics written by Michael R. Littner and published by Saunders. This book was released on 2011 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Portable Sleep monitoring is a very important method of diagnosis and follow-up for sleep-disordered breathing. This state-of-the-art issue reviews the most recent information on classification, technical specifications and types of portable monitors, use and limitations of portable monitoring with integration into positive airway pressure treatment. use of portable monitors in children and in patients with oral appliances. Use of portable monitoring for SDB treatment with upper airway surgery is also discussed. Current published standards incliding CMS requirements for portable monitoring are reviewed. Outcome measures, illustrative cases, and a comparison with polysomnogram are included. Finally, future directions are discussed.

Download or read book Radio Frequency based Wireless Monitoring of Sleep Apnoea Patient written by Yang Yang and published by . This book was released on 2012 with total page 404 pages. Available in PDF, EPUB and Kindle. Book excerpt: Radio frequency (RF) technology plays a significant role in the development of portable devices. Well-designed RF circuits may reduce the dimensions of portable medical devices, which will provide a more comfortable monitoring environment and may lead to more accurate diagnosis. This research is focused on the use of RF technology to develop a wearable wireless multi-parameter human monitoring system suitable for sleep apnoea research. In this thesis, an innovative system prototype employing RF and microwave technology is proposed. The thesis focusses on research into specified passive and active microwave circuits, 5.8 GHz signal propagation and concept approval at the system level. Specially-designed microwave bandpass (BPF) and lowpass filters (LPF) are presented in the thesis. These filters are designed based on the required specifications for the system. The designed BPF uses a combination of compact microstrip resonant cell (CMRC) and defected ground structure (DGS) technologies, which is able to satisfy a narrow bandwidth of 60 MHz and a selectivity of 0.22 dB/MHz, as required in the system specification. The LPF designs also use CMRC and DGS technologies. The achieved LPFs have the characteristics of sharp roll-off, low insertion loss, compact size and wide stop-bandwidth. 2.4 GHz and 5.8 GHz circular patch antennas are designed for the proposed wireless on-body transducer system, and the 5.8 GHz signal penetration capability has been tested in a simulated monitoring environment. The results prove that the 5.8 GHz microwave signal can be applied in the wireless monitoring of sleep apnoea patients. In the active design section, the design principles of a Class AB power amplifier and Class E oscillator using GaN HEMT technology are introduced. The designed circuits are able to achieve an appropriate output power level with a high power-added efficiency. These designs can be applied in a wireless power transmission system. Therefore, the battery can be completely removed from the on-body transducer, leading to significant saving of space. The cost of the portable transducer device may also be reduced at the same time. The sleep apnoea wireless monitoring system consists of two building blocks: an RF-based wireless on-body transducer and remote base station. The on-body prototype has a microstrip circular patch antenna, a project-oriented microstrip BPF, a frequency mixing circuit, a modulation circuit and a differential circuit for biomedical signal detection. The development of the on-body prototype was divided into five stages. For each of the developmental stages, the prototype underwent the phases of design, modelling, simulation, fabrication and measurement. The testing results for each phase and stage are very promising. The proposed prototype has been tested from baseband to 2.4 GHz RF band with excellent results.The research will benefit both sleep apnoea patients and hospitals by reducing the cost of the device, and the reduced size of the portable wireless patient monitoring device will enable patients to be more comfortable during diagnosis. The research reported in this thesis has made significant contributions in the following fields: (1) the development of a novel design of microstrip filters using CMRC and DGS, (2) successful 5.8 GHz signal penetration capability in a simulated environment for sleep apnoea monitoring, (3) the development of a high efficiency and high output power amplifier and oscillator for wireless power transmission and (4) concept approval of the proposed novel wireless on-body transducer.

Download or read book Advanced RFID Systems Security and Applications written by Karmakar, Nemai Chandra and published by IGI Global. This book was released on 2012-09-30 with total page 412 pages. Available in PDF, EPUB and Kindle. Book excerpt: As modern technologies continue to transform and impact our society, Radio Frequency Identification has emerged as one of the top areas of study to do just that. Using its wireless data capturing technique and incredible capabilities such as automatic identification, tracking, handling large amounts of data, and flexibility in operation, RFID aims to revamp the new millennium. Advanced RFID Systems, Security, and Applications features a comprehensive collection of research provided by leading experts in both academia and industries. This leading reference source provides state-of-the- art development on RFID and its contents will be of the upmost use to students and researchers at all levels as well as technologists, planners, and policy makers. RFID technology is progressing into a new phase of development.

Download or read book Effectiveness of Portable Monitoring Devices for Diagnosing Obstructive Sleep Apnea written by and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Context aware Algorithms for Sleep Apnea Monitoring and Sensor Acceptance Using Unobtrusive Pressure Sensors Arrays written by Daphné Townsend and published by . This book was released on 2012 with total page 294 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Wearable Personal Monitoring Devices Present to Future written by Gaetano D. Gargiulo and published by Springer Nature. This book was released on 2021-10-26 with total page 298 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book discusses recent advances in wearable technologies and personal monitoring devices, covering topics such as skin contact-based wearables (electrodes), non-contact wearables, the Internet of things (IoT), and signal processing for wearable devices. Although it chiefly focuses on wearable devices and provides comprehensive descriptions of all the core principles of personal monitoring devices, the book also features a section on devices that are embedded in smart appliances/furniture, e.g. chairs, which, despite their limitations, have taken the concept of unobtrusiveness to the next level. Wearable and personal devices are the key to precision medicine, and the medical community is finally exploring the opportunities offered by long-term monitoring of physiological parameters that are collected during day-to-day life without the bias imposed by the clinical environment. Such data offers a prime view of individuals’ physical condition, as well as the efficacy of therapy and occurrence of events. Offering an in-depth analysis of the latest advances in smart and pervasive wearable devices, particularly those that are unobtrusive and invisible, and addressing topics not covered elsewhere, the book will appeal to medical practitioners and engineers alike.

Download or read book Advances in the Diagnosis and Treatment of Sleep Apnea written by Thomas Penzel and published by Springer Nature. This book was released on 2022-10-10 with total page 387 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book focuses on biomedical innovations related to the diagnosis and treatment of sleep apnea. The latest diagnostic tools are described, including sleep laboratory equipment, wearables, and even smartphone apps. Innovative medical devices for treatment are also covered, such as CPAP, Auto-PAP, hypoglossal nerve stimulation, phrenic nerve stimulation, acoustic brain stimulation and electrical brain stimulation. This is an ideal book for biomedical engineers, pneumologists, neurologists, cardiologists, physiologists, ENT physicians, pediatrics, and epidemiologists who are interested in learning about the latest technologies in treating and diagnosing sleep apnea. Chapter 12 is available open access under a Creative Commons Attribution 4.0 International License via link.springer.com.

Download or read book Wireless Algorithms Systems and Applications written by Zhe Liu and published by Springer Nature. This book was released on 2021-09-08 with total page 635 pages. Available in PDF, EPUB and Kindle. Book excerpt: The three-volume set LNCS 12937 - 12939 constitutes the proceedings of the 16th International Conference on Wireless Algorithms, Systems, and Applications, WASA 2021, which was held during June 25-27, 2021. The conference took place in Nanjing, China.The 103 full and 57 short papers presented in these proceedings were carefully reviewed and selected from 315 submissions. The following topics are covered in Part I of the set: network protocols, signal processing, wireless telecommunication systems, blockchain, IoT and edge computing, artificial intelligence, computer security, distributed computer systems, machine learning, and others.

Download or read book Building a Better Delivery System written by Institute of Medicine and published by National Academies Press. This book was released on 2005-10-20 with total page 277 pages. Available in PDF, EPUB and Kindle. Book excerpt: In a joint effort between the National Academy of Engineering and the Institute of Medicine, this books attempts to bridge the knowledge/awareness divide separating health care professionals from their potential partners in systems engineering and related disciplines. The goal of this partnership is to transform the U.S. health care sector from an underperforming conglomerate of independent entities (individual practitioners, small group practices, clinics, hospitals, pharmacies, community health centers et. al.) into a high performance "system" in which every participating unit recognizes its dependence and influence on every other unit. By providing both a framework and action plan for a systems approach to health care delivery based on a partnership between engineers and health care professionals, Building a Better Delivery System describes opportunities and challenges to harness the power of systems-engineering tools, information technologies and complementary knowledge in social sciences, cognitive sciences and business/management to advance the U.S. health care system.

Download or read book Development of a Noninvasive Multiple Patient Sleep Apnea Monitor written by Jerome Peirick and published by . This book was released on 1983 with total page 382 pages. Available in PDF, EPUB and Kindle. Book excerpt: