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wireless continuous monitoring

Saeed Alighaleh, Leo K Cheng, Timothy R Angeli, Mina Amiri, Shameer Sathar, Gregory O'Grady, Niranchan Paskaranandavadivel
OBJECTIVE: The use of electroceuticals in the gastrointestinal field continues to advance, however, the efficacy and effectiveness of clinical gastric stimulation and pacing remains limited. In the stomach, rhythmic bioelectrical events known as slow waves coordinates the muscular contractions that aid digestion. A range of slow wave abnormalities have been shown to be associated with functional motility disorders, such as gastroparesis, chronic unexplained nausea and vomiting, and functional dyspepsia...
February 5, 2019: IEEE Transactions on Bio-medical Engineering
Christopher Zuidema, Sinan Sousan, Larissa V Stebounova, Alyson Gray, Xiaoxing Liu, Marcus Tatum, Oliver Stroh, Geb Thomas, Thomas Peters, Kirsten Koehler
Due to their small size, low-power demands, and customizability, low-cost sensors can be deployed in collections that are spatially distributed in the environment, known as sensor networks. The literature contains examples of such networks in the ambient environment; this article describes the development and deployment of a 40-node multi-hazard network, constructed with low-cost sensors for particulate matter (SHARP GP2Y1010AU0F), carbon monoxide (Alphasense CO-B4), oxidizing gases (Alphasense OX-B421), and noise (developed in-house) in a heavy-vehicle manufacturing facility...
January 22, 2019: Annals of Work Exposures and Health
Ralph J Mobbs, Christopher J Katsinas, Wen Jie Choy, Kaitlin Rooke, Monish Maharaj
We report a case of a 39-year-old male with sciatica who underwent an L5/S1 microdiscectomy with objective physical activity measurements performed preoperatively and continually postoperatively up to 3-month using wireless accelerometer technology linked to the surgical practice; collecting distance travelled, daily step count (DSC) and Gait Velocity (GV). Preoperative, the patient was walking with a GV of 0.97 m/s and a DSC of less than 2,500. After the first month following surgery, the patient had increased mobility, with a GV of 1...
December 2018: Journal of Spine Surgery (Hong Kong)
Mariska Weenk, Mats Koeneman, Tom H van de Belt, Lucien J L P G Engelen, Harry van Goor, Sebastian J H Bredie
BACKGROUND: Clinical deterioration regularly occurs in hospitalized patients potentially resulting in life threatening events. Early warning scores (EWS), like the Modified Early Warning Score (MEWS), assist care givers in assessing patients' clinical situation, but cannot alert for deterioration between measurements. New devices, like the ViSi Mobile (VM) and HealthPatch (HP) allow for continuous monitoring and can alert deterioration in an earlier phase. VM and HP were tested regarding MEWS calculation compared to nurse measurements, and detection of high MEWS in periods between nurse observations...
January 24, 2019: Resuscitation
Christopher John Lukas, Farah Yahya, Jacob Breiholz, Abhishek Roy, Xing Chen, Harsh Patel, NingXi Liu, Avish Kosari, Shuo Li, Divya Akella, Oluseyi Ayorinde, David Wentzloff, Benton Calhoun
Improving system lifetime and robustness is key to advancing self-powered platforms for real world applications. A complete self-powered, battery-less, wearable platform requires a microwatt-power SoC, operating reliably within this budget, capable of surviving long periods without charging, and recovering from power loss to its previous state. To meet these requirements, we designed a wireless sensing heterogeneous SiP containing an ULP SoC, a NVM, and a 2.4GHz FSK radio, all integrated with custom ULP interfaces...
January 24, 2019: IEEE Transactions on Biomedical Circuits and Systems
Jane L Phillips, Nicole Heneka, Melanie Lovell, Lawrence Lam, Patricia Davidson, Frances Boyle, Nikki McCaffrey, Sally Fielding, Tim Shaw
BACKGROUND: Variations in care models contribute to cancer pain being under-recognised and under-treated in half of all patients with cancer. International and national cancer pain management guidelines are achievable with minimal investment but require practice changes. While much of the cancer pain research over the preceding decades has focused on management interventions, little attention has been given to achieving better adherence to recommended cancer pain guideline screening and assessment practices...
January 18, 2019: Trials
Stacey M Anderson, Eyal Dassau, Dan Raghinaru, John Lum, Sue A Brown, Jordan E Pinsker, Mei Mei Church, Carol Levy, David Lam, Yogish C Kudva, Bruce Buckingham, Gregory P Forlenza, R Paul Wadwa, Lori Laffel, Francis J Doyle, J Hans DeVries, Eric Renard, Claudio Cobelli, Federico Boscari, Simone Del Favero, Boris P Kovatchev
BACKGROUND: Use of artificial pancreas (AP) requires seamless interaction of device components, such as continuous glucose monitor (CGM), insulin pump, and control algorithm. Mobile AP configurations also include a smartphone as computational hub and gateway to cloud applications (e.g., remote monitoring and data review and analysis). This International Diabetes Closed-Loop study was designed to demonstrate and evaluate the operation of the inControl AP using different CGMs and pump modalities without changes to the user interface, user experience, and underlying controller...
January 16, 2019: Diabetes Technology & Therapeutics
Mohammed Attia, Mona F Taher, Aliaa Rehan Youssef
Lateral ankle sprain is one of the most common ankle injuries, especially in sports. When not treated properly, chronic ankle instability (CAI) may develop causing recurrent sprains and permanent damage to ankle ligaments. In this study, the design, implementation and validation of a smart wearable device connected to a smartphone application is described. This device can predict and prevent the occurrence of ankle sprain. Prediction of potentially harmful motion is achieved by continuous monitoring of ankle kinematics using inertial motion sensors...
January 16, 2019: Journal of Medical Engineering & Technology
Peihuang Huang, Wenxing Zhu, Longkun Guo
Given a set of sensors distributed on the plane and a set of Point of Interests (POIs) on a line segment, a primary task of the mobile wireless sensor network is to schedule covering the POIs by the sensors, such that each POI is monitored by at least one sensor. For balancing the energy consumption, we study the min-max line barrier target coverage (LBTC) problem which aims to minimize the maximum movement of the sensors from their original positions to their final positions at which the coverage is composed...
January 11, 2019: Sensors
Amanda Hoerst, Adnan Bakar, Steven C Cassidy, Martha Clabby, Erica Del Grippo, Margaret Graupe, Ashraf S Harahsheh, Anthony M Hlavacek, Stephen A Hart, Alaina K Kipps, Nicolas L Madsen, Dora D O'Neil, Sonali S Patel, Courtney M Strohacker, Ronn E Tanel
BACKGROUND: The Pediatric Acute Care Cardiology Collaborative (PAC3 ) was established in 2014 to improve the quality, value, and experience of hospital-based cardiac acute care outside of the intensive care unit. An initial PAC3 project was a comprehensive survey to understand unit structure, practices, and resource utilization across the collaborative. This report aims to describe the previously unknown degree of practice variation across member institutions. METHODS: A 126-stem question survey was developed with a total of 412 possible response fields across nine domains including demographics, staffing, available resources and therapies, and standard care practices...
January 3, 2019: Congenital Heart Disease
Tejal Dave, Utpal Pandya
Uninterrupted monitoring of multiple subjects is required for mass causality events, in hospital environment or for sports by medical technicians or physicians. Movement of subjects under monitoring requires such system to be wireless, sometimes demands multiple transmitters and a receiver as a base station and monitored parameter must not be corrupted by any noise before further diagnosis. A Bluetooth Piconet network is visualized, where each subject carries a Bluetooth transmitter module that acquires vital sign continuously and relays to Bluetooth enabled device where, further signal processing is done...
November 2018: Biomedical Engineering Letters
Meera Joshi, Hutan Ashrafian, Lisa Aufegger, Sadia Khan, Sonal Arora, Graham Cooke, Ara Darzi
Monitoring a patient's vital signs forms a basic component of care, enabling the identification of deteriorating patients and increasing the likelihood of improving patient outcomes. Several paper-based track and trigger warning scores have been developed to allow clinical evaluation of a patient and guidance on escalation protocols and frequency of monitoring. However, evidence suggests that patient deterioration on hospital wards is still missed, and that patients are still falling through the safety net...
December 22, 2018: Expert Review of Medical Devices
Nicole R Gavin, Benjamin K Kogutt, William Fletcher, Linda M Szymanski
OBJECTIVE: The primary purpose of this study was to examine maternal and fetal responses to a typical, moderate-intensity yoga session in healthy pregnant women during the third trimester using continuous monitoring. METHODS: This prospective observational study in low-risk, pregnant women used the Monica AN24 Abdominal ECG wireless maternal-fetal monitor to measure fetal heart rate, maternal heart rate, and uterine activity during a prenatal yoga session. Sessions included 4 time periods: (1) 20-minute rest, (2) 50 minutes standard prenatal yoga, (3) 10-minute meditation, (4) 20-minute recovery...
December 20, 2018: Journal of Maternal-fetal & Neonatal Medicine
Asside Christian Djedouboum, Ado Adamou Abba Ari, Abdelhak Mourad Gueroui, Alidou Mohamadou, Zibouda Aliouat
Data collection is one of the main operations performed in Wireless Sensor Networks (WSNs). Even if several interesting approaches on data collection have been proposed during the last decade, it remains a research focus in full swing with a number of important challenges. Indeed, the continuous reduction in sensor size and cost, the variety of sensors available on the market, and the tremendous advances in wireless communication technology have potentially broadened the impact of WSNs. The range of application of WSNs now extends from health to the military field through home automation, environmental monitoring and tracking, as well as other areas of human activity...
December 18, 2018: Sensors
Alexander M Reyzelman, Kristopher Koelewyn, Maryam Murphy, Xuening Shen, E Yu, Raji Pillai, Jie Fu, Henk Jan Scholten, Ran Ma
BACKGROUND: Over 30 million people in the United States (over 9%) have been diagnosed with diabetes. About 25% of people with diabetes will experience a diabetic foot ulcer (DFU) in their lifetime. Unresolved DFUs may lead to sepsis and are the leading cause of lower-limb amputations. DFU rates can be reduced by screening patients with diabetes to enable risk-based interventions. Skin temperature assessment has been shown to reduce the risk of foot ulceration. While several tools have been developed to measure plantar temperatures, they only measure temperature once a day or are designed for clinic use only...
December 17, 2018: Journal of Medical Internet Research
Yili Zheng, Yandong Zhao, Weiping Liu, Shengbo Liu, Ruting Yao
Based on Internet-of-Things and multi-sensor technology, an intelligent wireless monitoring system was developed to obtain field ecological parameters and provide forest fire warning in real-time. The GPRS and China's Beidou satellite communication were selectively used for date transmission in the field with weak cell phone signals. This monitoring system is mainly composed of several field ecological monitoring stations, a cloud server, and online system software. Atmosphere, soil, sunlight and plant parameters of different regions are obtained real-time by sensors stably and reliably...
December 16, 2018: Sensors
Sunil Deshpande, Jordan E Pinsker, Stamatina Zavitsanou, Dawei Shi, Randy Tompot, Mei Mei Church, Camille Andre, Francis J Doyle Iii, Eyal Dassau
BACKGROUND: There is an unmet need for a modular artificial pancreas (AP) system for clinical trials within the existing regulatory framework to further AP research projects from both academia and industry. We designed, developed, and tested the interoperable artificial pancreas system (iAPS) smartphone app that can interface wirelessly with leading continuous glucose monitors (CGM), insulin pump devices, and decision-making algorithms while running on an unlocked smartphone. METHODS: After algorithm verification, hazard and mitigation analysis, and complete system verification of iAPS, six adults with type 1 diabetes completed 1 week of sensor-augmented pump (SAP) use followed by 48 h of AP use with the iAPS, a Dexcom G5 CGM, and either a Tandem or Insulet insulin pump in an investigational device exemption study...
December 14, 2018: Diabetes Technology & Therapeutics
Candice Downey, Rebecca Randell, Julia Brown, David G Jayne
BACKGROUND: Vital signs monitoring is a universal tool for the detection of postoperative complications; however, unwell patients can be missed between traditional observation rounds. New remote monitoring technologies promise to convey the benefits of continuous monitoring to patients in general wards. OBJECTIVE: The aim of this pilot study was to evaluate whether continuous remote vital signs monitoring is a practical and acceptable way of monitoring surgical patients and to optimize the delivery of a definitive trial...
December 11, 2018: Journal of Medical Internet Research
Changwon Wang, Young Kim, Se Dong Min
Spatiotemporal analysis of gait pattern is meaningful in diagnosing and prognosing foot and lower extremity musculoskeletal pathologies. Wearable smart sensors enable continuous real-time monitoring of gait, during daily life, without visiting clinics and the use of costly equipment. The purpose of this study was to develop a light-weight, durable, wireless, soft-material-based smart insole (SMSI) and examine its range of feasibility for real-time gait pattern analysis. A total of fifteen healthy adults (male: 10, female: 5, age 25...
November 30, 2018: Materials
M Brložnik, Š Likar, A Krvavica, V Avbelj, A Domanjko Petrič
OBJECTIVES: To evaluate the diagnostic utility of electrocardiogram data obtained by a wireless sensor from 36 dogs and four cats with suspected arrhythmias caused by cardiac or systemic diseases. MATERIALS AND METHODS: Wireless electrocardiographic recordings were obtained via two precordial electrodes attached to an electrocardiogram sensor connected to a smart device via low-power Bluetooth technology. Cardiac rate, rhythm and duration of P-QRS-T waves were evaluated with VisECG® software...
November 25, 2018: Journal of Small Animal Practice
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