Dissertationen: „Mobile medical device“

1

Hrabar, Silvio. „Analysis of electromagnetic interference between mobile telephone and implanted medical device“. Thesis, Brunel University, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.341092.

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2

Gavefalk, Sofia, und Ludwig Widén. „International market selection : Assessing opportunities in the European Union for a mHealth consumer medical device start-up“. Thesis, KTH, Entreprenörskap och Innovation, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-188829.

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To date, there are no existing models for evaluating foreign markets, adapted to mobile health (mHealth) consumer medical device (CMD) start-ups seeking to launch their products or services in new countries. This calls for the development of a suitable international market selection (IMS) model that captures the complexity of and opportunities for mHealth. mHealth is a sub-segment of electronic health (eHealth), which furthermore is part of the wider phenomenon of digital health. mHealth covers medical and public health practice supported by mobile devices. This paper proposes a multidimensional IMS model comprising both macro and micro level factors. Our specialized approach integrates tools and theories by a number of researchers and is showcased in the assessment of the European Union (EU) for the mHealth CMD company AdhereBox. AdhereBox is a Swedish start-up that has developed a CMD consisting of a “smart” pillbox and a complementary mobile software application. We propose a number of dimensions that should be evaluated when assessing the potential of the different EU health care markets in regards to mHealth CMD start-ups. Our suggested approach includes factors which are categorized into two groups of parameters: (i) stakeholders (which comprises consumers, providers, payers, distributors and collaborators) and (ii) barriers & enablers (consisting of incentives, reimbursement models, technological infrastructure, regulations and existing solutions). In summary, our study identifies critical factors that mHealth CMD start-ups should consider when evaluating foreign markets in an IMS. By applying our IMS model on AdhereBox, we illustrate how our model can be used, its parameters assessed and the interdependencies between these analyzed in order to arrive at a set of recommendations for further market analysis and conclusions on country attractiveness. As such, we believe that our research could provide valuable insights and guidelines for firms within mHealth seeking to expand their business within the EU, as well as for governmental organizations that want to better leverage and stimulate the potentials of a flourishing domestic mHealth ecosystem.

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Gianessi, Leonardo. „Rassegna di dispositivi mobili per la raccolta di dati biomedici“. Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2010. http://amslaurea.unibo.it/1186/.

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4

Jahn, Haiko [Verfasser], Wilhelm [Gutachter] Behringer, James F. [Gutachter] Beck und Sebastian van [Gutachter] As. „Survey of mobile device and Medical App use in emergency care / Haiko Jahn ; Gutachter: Wilhelm Behringer, James F. Beck, Sebastian van As“. Jena : Friedrich-Schiller-Universität Jena, 2020. http://d-nb.info/1209196018/34.

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5

Berberich, Katelyn. „Evaluating Mobile Information Display System in Transfer of Care“. Wright State University / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=wright1503437044573349.

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6

Gan, Yajian. „Analysis of bioelectric mechanisms at the skin-electrode interface for mobile acquisition of physiological signals : application to ECG measurement for the prevention of cardiovascular diseases“. Electronic Thesis or Diss., Aix-Marseille, 2021. http://www.theses.fr/2021AIXM0045.

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Les maladies cardiovasculaires deviennent de plus en plus préoccupantes dans le monde entier. En 2020, le monde souffre de la crise du coronavirus Covid-19, dont le fort rythme de la contagion et les symptômes ont déjà provoqué la mort de plusieurs millions de personnes. Les résultats cliniques ont prouvé que le coronavirus et le médicament thérapeutique (chloroquine) peuvent tous deux endommager le cœur de manière irréversible, sous forme d’arythmies. Par rapport à l’appareil d’ECG utilisé dans les hôpitaux, les appareils d’ECG mobiles à simple dérivation sont la meilleure solution pour surveiller la santé cardiaque à tout moment et en tout lieu. Cependant, la plupart de ces appareils manquent de précision et d’exactitude des mesures, principalement dû au fait que le faible signal ECG est facilement perturbé par le mouvement de l’utilisateur et par l’environnement. Cette thèse étudie tout d’abord le matériau le plus approprié pour l’électrode à simple dérivation. Par la suite, des expériences approfondies ont été élaborées et réalisées pour analyser les sources d’interférence du signal ECG en s’appuyant sur un modèle physico-chimique de l’impédance peau-électrode proposé. Enfin, des méthodes de compensation directes et indirectes (fonction de transfert / intelligence artificielle) sont proposées pour éliminer les interférences dû au mouvement dans le signal ECG. L’objectif de cette recherche est d’appliquer ces résultats à l’optimisation du produit "Witcard" et de fournir des informations expérimentales précieuses à d’autres chercheurs qui travaillent à l’amélioration de la qualité de l’enregistrement des signaux ECG avec des équipements mobiles à simple dérivation
Cardiovascular diseases are becoming increasingly serious worldwide. Especially in the year 2020, when the world is suffering from the coronavirus. Clinical results have proved that both coronavirus and the therapeutic drug (chloroquine) can irreversibly damage the heart, such as arrhythmias. Compared to the ECG machine used in the hospitals that consumes plenty of patients’ time and money, single-lead mobile ECG monitors are the best solution for monitoring heart health anytime, anywhere. However, most of the handheld ECG monitoring devices on the market have not passed clinical testing due to the lack of accuracy and precision of measurement, mainly caused by the fact that the weak ECG signal is easily disturbed by the subject’s movement and the surrounding environment. This thesis investigates the most suitable material for the single-lead electrode at first. Secondly, extensive experiments have been designed and practiced analyzing the sources of ECG noise interference. The physicochemical model of the skin-electrode impedance is proposed at the same time. Finally, directly and indirectly method with the corresponding algorithm (transfer function/artificial intelligence) has been used to eliminate the interference in ECG signal when the motion artifact exists. This research aims to apply these findings to the optimization of the product “Witcard” and provide valuable experimental information to other researchers who work to improve the quality of ECG signal recording with signal-lead mobile ECG equipment

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Monsen, Karl Didrik. „Better medical apps for healthcare practitioners through interdisciplinary collaboration : lessons from transfusion medicine“. Thesis, University of Edinburgh, 2017. http://hdl.handle.net/1842/25771.

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Mobile applications (“apps”) are increasingly used in medical education and practice. However, many medical apps are of variable quality, lack supporting evidence and fall outside the remit of regulators. In this thesis, I explore how the quality and credibility of apps for healthcare practitioners could be improved. I argue that interdisciplinary collaboration throughout the app life-cycle is critical and discuss how this can be facilitated. My argument rests on prior work in eHealth and neighbouring disciplines, and on original research in transfusion medicine. Blood transfusion can be a life-saving medical treatment. However, it also carries risks. Failures to provide irradiated and cytomegalovirus-negative blood components according to guidelines are frequently reported in the UK. Such incidents put patients at risk of serious complications. Haemovigilance data indicates that enhancing practitioner knowledge may reduce mistakes. Thus, I worked with medical experts to develop and evaluate the Special Blood Components (SBC) mobile learning app. To facilitate this work, I created two tools: the Web App Editor (WAE) and the Web App Trial (WAT). The former is a collaborative editor for building apps in a web browser and the latter is a system for conducting online randomised controlled app trials. The results are reported in five studies. Studies 1 and 2, based on interviews with seven practitioners, revealed shortcomings in an existing transfusion app and the SBC prototype. Study 3 demonstrated how students using theWAE were able to collaborate on apps, including an app in stroke medicine. Study 4, an evaluation of the revised SBC app with 54 medical students, established the ease of use as acceptable. In study 5, a WAT pilot study with 61 practitioners, the SBC app doubled scores on a knowledge test and was rated more favourably than existing hospital guidelines. In conclusion, creating high quality medical apps that are supported by evidence is a considerable undertaking and depends on a mix of knowledges and skills. It requires that healthcare practitioners, software developers and otherswork together effectively. Hence, the WAE and WAT are key research outcomes. They enabled participants to contribute improvements and assess the usability and efficacy of the SBC app. The results suggest that the SBC app is easy to use and can improve practitioner knowledge. Further work remains to pilot and evaluate the SBC app in a hospital setting.

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Brunberg, Marike. „User optimized design of handheld medical devices -applications and casing“. Thesis, Umeå universitet, Institutionen för tillämpad fysik och elektronik, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-36270.

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9

Campoalegre, Vera Lázaro. „Contributions to the interactive visualization of medical volume models in mobile devices“. Doctoral thesis, Universitat Politècnica de Catalunya, 2014. http://hdl.handle.net/10803/285166.

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With current medical imaging improvements, specialists are being able to obtain correct information of anatomical structures of the human organism. By using different image visualization techniques, experts can obtain suitable images for bones, soft tissues, bloodstream among others. Present algorithms generate images with better and better resolution and information accuracy. Medical doctors are being more familiarized with three-dimensional structures reconstructed from bi-dimensional images. As a result, hospitals are becoming interested in tele-medicine and tele-diagnostic solutions. Client-server applications allow these functionalities. Sometimes the use of mobile devices is necessary due to their portability and easy maintenance. However, transmission time for the volumetric information and low performance hardware properties make quite complex the design of efficient visualization systems on these devices. The main objective of this thesis is to enrich user experience during the interactive visualization of volumetric medical models in low performance devices. To achieve this, a new transfer-function aware compression/decompression mechanism adapted to transmission, reconstruction and visualization has been studied. This work proposes several schemes to exploit the use of transfer functions (TFs) to enhance volume compression during data transmission to mobile devices. As far as we know, this possibility has not been considered by any of the described approaches in the previous work. The Wavelet-Based Volume Compression for Remote Visualization approach is a TF-aware compression scheme. It supports inspection of complex volume models with maximum level of detail in selected regions of interest (ROIs). It uses a GPU-based, ROI-aware ray-casting rendering algorithm in the client, with a limited amount of information being sent over the Network, decreasing storage size in the client side. Regarding the Remote Exploration of Volume Models using Gradient Octrees scheme, we have shown that this technique can efficiently encode volume datasets. It supports high-quality visualizations with Transfer Functions from a predefined TFs set. In the present implementation, Transfer Function sets can encode up to ten different volume materials. Gradient Octrees are multi-resolution, supporting progressive transmission and avoiding gradient computations in the client device. That is, Gradient Octrees encodes precomputed gradients to save costly computations in the client, and support illumination-based ray-casting without extra computations in the client GPU. The proposed scheme presents a minimum loss of visual quality as compared to state of the art ray-casting renderings. The octree structure is compacted into a small volume array and a set of texture-coded arrays, with only one bit per octree node. The proposed scheme supports planar volume sections which are visualized with high-resolution volume information, besides interactive extrusion of specific structures. As a final contribution, a Hybrid ROI-based Visualization Algorithm has been proposed. It inherits the advantages of the previously described contributions while keeping a good performance in terms of bandwidth requirements and storage needs in client devices. The scheme is flexible enough to represent several materials and volume structures in the ROI area at high resolution with a very limited information transmission cost. The Hybrid approach has been proved to be specially well suited in the case of large models. Experimental results show that this Hybrid approach is a scalable scheme, with compression rates that decrease when the size of the volume model increases.
Los adelantos actuales en imagenes médicas están permitiendo a los especialistas obtener información cada vez más precisa de las estructuras anatómicas del organismo humano. Mediante la utilización de diferentes técnicas de visualización, los expertos pueden obtener imágenes de calidad para los huesos, tejidos blandos y torrente sanguíneo, entre otros. Los actuales algoritmos de procesamiento de imágenes garantizan el equilibrio entre la resolución y la exactitud de la información. Paralelamente, los médicos están más familiarizados con las estructuras tridimensionales reconstruidas a partir de imágenes en dos dimensiones. Por otro lado, los hospitales están incorporando la tele-medicina y el tele-diagnóstico entre sus soluciones técnicas. Las aplicaciones cliente-servidor permiten estas funcionalidades. En ocasiones el uso de dispositivos móviles es necesario debido a su fácil mantenimiento y a su portabilidad. Sin embargo, el tiempo de transmisión de la información volumétrica así como el bajo rendimiento del hardware en estos dispositivos, hacen que el diseño de sistemas eficientes de visualización sea todavía una tarea compleja. El objetivo principal de esta tesis es enriquecer la experiencia del usuario en la visualización interactiva de modelos volumétricos de medicina en dispositivos de bajo rendimiento. Para conseguir esto, se ha puesto en práctica la implementación de un mecanismo de compresión/descompresión que depende de funciones de transferencia para optimizar la transmisión, reconstrucción y la visualización en estos dispositivos. Esta tesis, por lo tanto, propone varios esquemas para aprovechar el uso de las funciones de transferencia (TFs) e incrementar el ratio de compresión del volumen durante la transmisión a los dispositivos móviles. De acuerdo con nuestros conocimientos, ninguna de las técnicas descritas en los trabajos presentados anteriormente ha considerado esta posibilidad. El esquema de compresión de volumen basado en Wavelets para la visualización remota, es una propuesta para compresión que tiene en cuenta la función de transferencia. Permite la inspección de modelos de volumen complejos con máximos niveles de detalles en regiones de interés seleccionados. El rendering ejecuta un ray-casting adaptado a modelos con regiones de interés orientado a la GPU en el cliente con una cantidad de información muy limitada que se envía por la red. La otra contribución de esta tesis es la implementación de un esquema para la exploración remota de modelos volumétricos mediante Gradient Octrees. Esta técnica codifica de manera eficiente datos de volumen mientras garantiza visualizaciones de alta calidad con funciones de transferencias predefinidas en un determinado conjunto. La actual implementación permite codificiar hasta 10 materiales diferentes en los datos de Volumen. Gradient Octrees es una técnica multi-resolución, permite la transmisión progresiva y evita los cálculos del gradiente en el dispositivo cliente. En efecto, esta aproximación codifica gradientes previamente calculados para reducir el coste de los cálculos en la GPU del cliente y garantizar el ray-casting con iluminación en la GPU del dispositivo. En comparación con las propuestas estudiadas la pérdida de la calidad visual en los Gradient Octrees es mínima. La estructura del octree es compacta, compuesta de un pequeño vector de volumen y un conjunto de vectores de texturas codificadas, que utilizan solo 1 bit por nodo del octree. El esquema soporta además secciones planas de volumen que contienen información de alta resolución, además de la extrusión de estructuras en los modelos visualizados

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Díaz, García Jesús. „Real-time quality visualization of medical models on commodity and mobile devices“. Doctoral thesis, Universitat Politècnica de Catalunya, 2018. http://hdl.handle.net/10803/586049.

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This thesis concerns the specific field of visualization of medical models using commodity and mobile devices. Mechanisms for medical imaging acquisition such as MRI, CT, and micro-CT scanners are continuously evolving, up to the point of obtaining volume datasets of large resolutions (> 512^3). As these datasets grow in resolution, its treatment and visualization become more and more expensive due to their computational requirements. For this reason, special techniques such as data pre-processing (filtering, construction of multi-resolution structures, etc.) and sophisticated algorithms have to be introduced in different points of the visualization pipeline to achieve the best visual quality without compromising performance times. The problem of managing big datasets comes from the fact that we have limited computational resources. Not long ago, the only physicians that were rendering volumes were radiologists. Nowadays, the outcome of diagnosis is the data itself, and medical doctors need to render them in commodity PCs (even patients may want to render the data, and the DVDs are commonly accompanied with a DICOM viewer software). Furthermore, with the increasing use of technology in daily clinical tasks, small devices such as mobile phones and tablets can fit the needs of medical doctors in some specific areas. Visualizing diagnosis images of patients becomes more challenging when it comes to using these devices instead of desktop computers, as they generally have more restrictive hardware specifications. The goal of this Ph.D. thesis is the real-time, quality visualization of medium to large medical volume datasets (resolutions >= 512^3 voxels) on mobile phones and commodity devices. To address this problem, we use multiresolution techniques that apply downsampling techniques on the full resolution datasets to produce coarser representations which are easier to handle. We have focused our efforts on the application of Volume Visualization in the clinical practice, so we have a particular interest in creating solutions that require short pre-processing times that quickly provide the specialists with the data outcome, maximize the preservation of features and the visual quality of the final images, achieve high frame rates that allow interactive visualizations, and make efficient use of the computational resources. The contributions achieved during this thesis comprise improvements in several stages of the visualization pipeline. The techniques we propose are located in the stages of multi-resolution generation, transfer function design and the GPU ray casting algorithm itself.
Esta tesis se centra en la visualización de modelos médicos de volumen en dispositivos móviles y de bajas prestaciones. Los sistemas médicos de captación tales como escáners MRI, CT y micro-CT, están en constante evolución, hasta el punto de obtener modelos de volumen de gran resolución (> 512^3). A medida que estos datos crecen en resolución, su manejo y visualización se vuelve más y más costoso debido a sus requisitos computacionales. Por este motivo, técnicas especiales como el pre-proceso de datos (filtrado, construcción de estructuras multiresolución, etc.) y algoritmos específicos se tienen que introducir en diferentes puntos de la pipeline de visualización para conseguir la mejor calidad visual posible sin comprometer el rendimiento. El problema que supone manejar grandes volumenes de datos es debido a que tenemos recursos computacionales limitados. Hace no mucho, las únicas personas en el ámbito médico que visualizaban datos de volumen eran los radiólogos. Hoy en día, el resultado de la diagnosis son los datos en sí, y los médicos necesitan renderizar estos datos en PCs de características modestas (incluso los pacientes pueden querer visualizar estos datos, pues los DVDs con los resultados suelen venir acompañados de un visor de imágenes DICOM). Además, con el reciente aumento del uso de las tecnologías en la clínica práctica habitual, dispositivos pequeños como teléfonos móviles o tablets son los más convenientes en algunos casos. La visualización de volumen es más difícil en este tipo de dispositivos que en equipos de sobremesa, pues las limitaciones de su hardware son superiores. El objetivo de esta tesis doctoral es la visualización de calidad en tiempo real de modelos grandes de volumen (resoluciones >= 512^3 voxels) en teléfonos móviles y dispositivos de bajas prestaciones. Para enfrentarnos a este problema, utilizamos técnicas multiresolución que aplican técnicas de reducción de datos a los modelos en resolución original, para así obtener modelos de menor resolución. Hemos centrado nuestros esfuerzos en la aplicación de la visualización de volumen en la práctica clínica, así que tenemos especial interés en diseñar soluciones que requieran cortos tiempos de pre-proceso para que los especialistas tengan rápidamente los resultados a su disposición. También, queremos maximizar la conservación de detalles de interés y la calidad de las imágenes finales, conseguir frame rates altos que faciliten visualizaciones interactivas y que hagan un uso eficiente de los recursos computacionales. Las contribuciones aportadas por esta tesis són mejoras en varias etapas de la pipeline de visualización. Las técnicas que proponemos se situan en las etapas de generación de la estructura multiresolución, el diseño de la función de transferencia y el algoritmo de ray casting en la GPU.

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Venson, José Eduardo. „Medical image analysis based on mobile and virtual reality interfaces“. reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2017. http://hdl.handle.net/10183/165261.

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A radiologia é especialidade médica mais informatizada, graças a difusão de protocolos e a digitalização dos processos. Com os avanços da tecnologia, o diagnóstico por imagens se mantém em constante evolução e tais mudanças nunca tiveram tanta repercussão sobre o trabalho dor profissionais de saúde como agora. Nosso desafio enquanto pesquisadores de computação é propor abordagens que facilitem o trabalho médico, instigue a colaboração e, por fim, como objetivo mais audacioso, melhore os cuidados à saúde das pessoas. Nesse contexto, esta dissertação investiga a inserção de interfaces alternativas para análise de imagens médicas diagnósticas. Ela está organizada em duas áreas principais, a primeira diz respeito ao diagnóstico móvel, desde o desenvolvimento de ferramentas que permitam o acesso a imagens digitais em ambientes com recursos limitados, até a avaliação do diagnóstico realizado nesses ambientes comparado a dispositivos tradicionais (workstations radiológicas). A segunda etapa está relacionada a visualização avançada de exames volumétricos, nesse caso investigamos a capacidade diagnóstica de visualizar em realidade virtual, bem como a qualidade das reconstruções nesse ambiente, usabilidade e desconfortos dos usuários. Toda a experimentação e desenvolvimento foi realizada sobre sistemas profissionais e validados por médicos especialistas em imagens diagnósticas. As principais contribuições referentes a aplicações móveis são técnicas para acesso eficiente a imagens médicas em ambientes com recursos limitados, como tablets e smartphones, um estudo do comportamento típico de médicos radiologistas ao utilizarem um visualizador móvel e as respectivas avaliações de usabilidade dessa aplicação. Para o diagnóstico móvel, destaca-se a alta taxa de acerto para avaliação de exames de tomografia computadorizada (TC), ressonância magnética (RM) e radiografias, quando comparado a computadores desktop. Além disso, resultados obtidos na visualização de imagens médicas em realidade virtual mostraram uma alta taxa de acerto na identificação de fraturas expostas (para imagens 3D de TC). A percepção dos radiologistas após utilizar a aplicação imersiva trouxe indicativos de quais áreas da medicina a realidade virtual pode trazer reais benefícios, como no planejamento de cirurgias, visualização de fraturas complexas, distração de pacientes em procedimentos dolorosos, entre outros. À luz dos resultados apresentados, verifica-se o potencial dos dispositivos móveis para avaliação de imagens diagnósticas, principalmente em casos de emergência, sendo fundamental para agilidade no cuidado à saúde de pacientes. A realidade virtual na radiologia tem o potencial de revolucionar as interfaces para manipulação de dados clínicos, criando uma novo paradigma de interpretação em imagens médicas diagnósticas.
Radiology is considered the most digital medical specialty because of the diffusion of protocols and the digitization of processes. With fast technological advances, the imagingbased diagnosis remains in constant evolution and such changes have never had as much repercussion on the health workers as today. Our challenge as computer scientists is to propose new approaches that facilitate medical work, instigate collaboration and, finally, as the most audacious goal, improve people’s healthcare. In such context, this thesis investigates the use of alternative interfaces for medical images analysis. Our research is organized in two main areas. The first one concerns mobile diagnosis, from the development of tools that allow access to medical images in computation environments with limited resources, to the evaluation of the diagnosis performed in these environments when compared to traditional devices (radiological workstations). The second stage is related to advanced approaches to visualize volumetric exams. In this case, we investigate the diagnostic capability of visualizing in virtual reality, as well as the quality of the reconstructions provided in such environments, usability and user discomforts. All the experimentation and development were carried out on professional systems and validated by specialists in diagnostic imaging. Techniques for efficient medical images access in environments with limited resources, such as tablets and smartphones, are the main contributions regarding mobile applications. This also includes a study of the typical behavior of radiologist physicians when using a mobile viewer and the respective usability evaluations of that application. For the mobile diagnosis, the high accuracy rate for the evaluation of computed tomography (CT), magnetic resonance imaging (MRI) and radiography when compared to desktop computers, stands out. In addition, results obtained in the virtual reality visualization showed a highly accurate rate for the identification of superficial fractures (in 3D CT studies). The radiologists perception after using the immersive application has brought indications of what areas in medicine virtual reality can bring real benefits. Examples include surgeries planning, visualization of complex fractures and distraction of patients in painful procedures, among others. In light of the presented results, the potential of the mobile devices for the evaluation of diagnostic images, mainly in cases of emergency, being fundamental for agility in the patients health care is noticeable. Virtual reality in radiology has the potential to revolutionize the interfaces for manipulation of clinical data, creating a new paradigm of interpretation in diagnostic medical images.

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Wu, Longfei. „Designing Effective Security and Privacy Schemes for Wireless Mobile Devices“. Diss., Temple University Libraries, 2017. http://cdm16002.contentdm.oclc.org/cdm/ref/collection/p245801coll10/id/469736.

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Computer and Information Science
Ph.D.
The growing ubiquity of modern wireless and mobile electronic devices has brought our daily lives with more convenience and fun. Today's smartphones are equipped with a variety of sensors and wireless communication technologies, which can support not only the basic functions like phone call and web browsing, but also advanced functions like mobile pay, biometric security, fitness monitoring, etc. Internet-of-Things (IoT) is another category of popular wireless devices that are networked to collect and exchange data. For example, the smart appliances are increasingly deployed to serve in home and office environments, such as smart thermostat, smart bulb, and smart meter. Additionally, implantable medical devices (IMD) is the typical type of modern wireless devices that are implanted within human body for diagnostic, monitoring, and therapeutic purposes. However, these modern wireless and mobile devices are not well protected compared with traditional personal computers (PCs), due to the intrinsic limitations in computation power, battery capacity, etc. In this dissertation, we first present the security and privacy vulnerabilities we discovered. Then, we present our designs to address these issues and enhance the security of smartphones, IoT devices, and IMDs. For smartphone security, we investigate the mobile phishing attacks, mobile clickjacking attacks and mobile camera-based attacks. Phishing attacks aim to steal private information such as credentials. We propose a novel anti-phishing scheme MobiFish, which can detect both phishing webpages and phishing applications (apps). The key idea is to check the consistency between the claimed identity and the actual identity of a webpage/app. The claimed identity can be extracted from the screenshot of login user interface (UI) using the optical character recognition (OCR) technique, while the actual identity is indicated by the secondary-level domain name of the Uniform Resource Locator (URL) to which the credentials are submitted. Clickjacking attacks intend to hijack user inputs and re-route them to other UIs that are not supposed to receive them. To defend such attacks, a lightweight and independent detection service is integrated into the Android operating system. Our solution requires no user or app developer effort, and is compatible with existing commercial apps. Camera-based attacks on smartphone can secretly capture photos or videos without the phone user's knowledge. One advanced attack we discovered records the user's eye movements when entering passwords. We found that it is possible to recover simple passwords from the video containing user eye movements. Next, we propose an out-of-band two-factor authentication scheme for indoor IoT devices (e.g., smart appliances) based on the Blockchain infrastructure. Since smart home environment consists of multiple IoT devices that may share their sensed data to better serve the user, when one IoT device is being accessed, our design utilizes another device to conduct a secondary authentication over an out-of-band channel (light, acoustic, etc.), to detect if the access requestor is a malicious external device. Unlike smartphones and IoT devices, IMDs have the most limited computation and battery resources. We devise a novel smartphone-assisted access control scheme in which the patient's smartphone is used to delegate the heavy computations for authentication and authorization. The communications between the smartphone and the IMD programmer are conducted through an audio cable, which can resist the wireless eavesdropping and other active attacks.
Temple University--Theses

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13

Yetisen, Ali Kemal. „Holographic point-of-care diagnostic devices“. Thesis, University of Cambridge, 2014. https://www.repository.cam.ac.uk/handle/1810/246754.

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Developing non-invasive and accurate diagnostics that are easily manufactured, robust and reusable will provide monitoring of high-risk individuals in any clinical or point-of-care environment, particularly in the developing world. There is currently no rapid, low-cost and generic sensor fabrication technique capable of producing narrow-band, uniform, reversible colorimetric readouts with a high-tuneability range. This thesis aims to present a theoretical and experimental basis for the rapid fabrication, optimisation and testing of holographic sensors for the quantification of pH, organic solvents, metal cations, and glucose in solutions. The sensing mechanism was computationally modelled to optimise its optical characteristics and predict the readouts. A single pulse of a laser (6 ns, 532 nm, 350 mJ) in holographic “Denisyuk” reflection mode allowed rapid production of sensors through silver-halide chemistry, in situ particle size reduction and photopolymerisation. The fabricated sensors consisted of off-axis Bragg diffraction gratings of ordered silver nanoparticles and localised refractive index changes in poly(2-hydroxyethyl methacrylate) and polyacrylamide films. The sensors exhibited reversible Bragg peak shifts, and diffracted the spectrum of narrow-band light over the wavelength range λpeak ≈ 500-1100 nm. The application of the holographic sensors was demonstrated by sensing pH in artificial urine over the physiological range (4.5-9.0), with a sensitivity of 48 nm/pH unit between pH 5.0 and 6.0. For sensing metal cations, a porphyrin derivative was synthesised to act as the crosslinker, the light absorbing material, the component of a diffraction grating, as well as the cation chelating agent. The sensor allowed reversible quantification of Cu2+ and Fe2+ ions (50 mM - 1 M) with a response time within 50 s. Clinical trials of a glucose sensor in the urine samples of diabetic patients demonstrated that the glucose sensor has an improved performance compared to a commercial high-throughput urinalysis device. The experimental sensitivity of the glucose sensor exhibited a limit of detection of 90 µM, and permitted diagnosis of glucosuria up to 350 mM. The sensor response was achieved within 5 min and the sensor could be reused about 400 times without compromising its accuracy. Holographic sensors were also tested in flake form, and integrated with paper-iron oxide composites, dyed filter and chromatography papers, and nitrocellulose-based test strips. Finally, a generic smartphone application was developed and tested to quantify colorimetric tests for both Android and iOS operating systems. The developed sensing platform and the smartphone application have implications for the development of low-cost, reusable and equipment-free point-of-care diagnostic devices.

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Shozi, Nobubele Angel. „Factors affecting the use of mobile devices for remote data collection in home community based care“. Thesis, Nelson Mandela Metropolitan University, 2012. http://hdl.handle.net/10948/d1012621.

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The health care systems of developing countries, which are already weak, have to carry an additional strain brought on by the burden of infectious diseases. This added strain means that the health care provided is not of the highest quality. The use of home community based care (HCBC) was introduced as an attempt to provide basic health care services to people through the services of community health care workers (CHCW). With the development of HCBC in developing countries and the CHCW playing a vital role in ensuring that the lives of people living with diseases are improved, the need for information and communication technology (ICT) solutions is increased. The information that is collected by the CHCW is paper-based and it cannot be analysed and used efficiently and effectively. This study embraces the adoption of a socio-technical perspective when an ICT solution is introduced in an environment. A socio-technical perspective focuses on three dimensions: the user, the environment and the technology used. These three need to be in coherence to ensure that the technology is used effectively by the user within the environment. Therefore the objective of this study is to identify a list of socio-technical factors that affect CHCWs when they are using mobile phones for data collection purposes in home community based care. In order to achieve this it was necessary to understand how the socio-technical subsystems of the HCBC environment are constituted. The study followed a qualitative approach, including interviews and observations, to collect the data which will best enable the researcher to understand the home community based care environment, its people and the use of the technology to collect data in this environment, in particular mobile phones. A qualitative content analysis approach was followed to analyse the data and constitute a list of factors affecting the use of mobile devices for remote data collection in home community based care. It is hoped that this research will assist to inform the design of appropriate mobile health applications to both ease the burden of CHCWs (i.e. it should be faster and easier to use than paper) and improve the healthcare service provided through enabling access to patient records to all partners in the care continuum.

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Kativu, Tatenda Kevin. „A framework for the secure consumerisation of mobile, handheld devices in the healthcare institutional context“. Thesis, Nelson Mandela Metropolitan University, 2017. http://hdl.handle.net/10948/18630.

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The advances in communication technologies have resulted in a significant shift in the workplace culture. Mobile computing devices are increasingly becoming an integral part of workplace culture. Mobility has several advantages to the organisation, one such example is the “always online” workforce resulting in increased productivity hours. As a result, organisations are increasingly providing mobile computing devices to the workforce to enable remote productivity at the organisations cost. A challenge associated with mobility is that these devices are likely to connect to a variety of networks, some which may insecure, and because of their smaller form factor and perceived value, are vulnerable to loss and theft amongst other information security challenges. Increased mobility has far reaching benefits for remote and rural communities, particularly in the healthcare domain where health workers are able to provide services to previously inaccessible populations. The adverse economic and infrastructure environment means institution provided devices make up the bulk of the mobile computing devices, and taking away the ownership, the usage patterns and the susceptibility of information to adversity are similar. It is for this reason that this study focuses on information security on institution provided devices in a rural healthcare setting. This study falls into the design science paradigm and is guided by the principles of design science proposed by Hevner et al. The research process incorporates literature reviews focusing on health information systems security and identifying theoretical constructs that support the low-resource based secure deployment of health information technologies. Thereafter, the artifact is developed and evaluated through an implementation case study and expert reviews. The outcomes from the feedback are integrated into the framework.

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Franklin, Paula. „First aid when and where you need it, development of first aid self-care, patient education for web and mobile devices /“. Online version of thesis, 2008. http://hdl.handle.net/1850/7903.

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Benjamin, Valencia. „Experiences of professional nurses with regard to accessing information at the point-of-care via mobile-computing devices at a public hospital“. Thesis, Nelson Mandela Metropolitan University, 2013. http://hdl.handle.net/10948/d1020193.

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Mobile computing devices are capable of changing how healthcare is delivered in the future, since they aim to merge and integrate all services into one device that is versatile, customisable, and portable. The aim of this study was to explore and describe the experiences of professional nurses with regard to accessing information at the point-of-care of the patient, in order to develop guidelines that could assist other professional nurses with implementing the mobile computing device for accessing information at the point-of-care of patients. To achieve the purpose of the study, a qualitative, explorative, descriptive, and contextual design was used to conduct this research – to gain an understanding of how the professional nurses experienced accessing information at the point-of-care via mobile computing devices. The study was conducted among the professional nurses employed at the public hospital, who were trained and provided with the mobile computing device for accessing information at the point-of-care for more than two years. In-depth interviewing was conducted to obtain the data. Data analysis was done using Tesch‘s method to make sense out of text and data. Four themes were identified, namely, the professional nurses‘ expression of various experiences regarding the training received; the need for support in implementing the mobile computing device; the accessing of information at the point-of-care as beneficial for educational purposes; and the accessing of information at the point-of-care as beneficial to patient care. Two main guidelines were developed. The study concludes with recommendations made with regard to the areas of nursing practice, education and research. Throughout the study, the researcher abided by the ethical considerations. The aspects of trustworthiness implemented in this study, included dependability, credibility, transferability and confirmability (Holloway & Wheeler, 2010:298).

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Poletti, Jabbour Giordana Francesca, und Farfán Natalia Andrea Elejalde. „Efficacy of alcohol gel versus alcoholic wipes on hands to reduce bacterial contamination of mobile devices of sixth-year medical students at a Peruvian University in 2019“. Bachelor's thesis, Universidad Peruana de Ciencias Aplicadas (UPC), 2021. http://hdl.handle.net/10757/655783.

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CONTEXT: Nowadays, cellphones are susceptible to bacterial contamination and, therefore, they are potential reservoirs for disease transmission. The main aim of this study is to evaluate the efficacy of the use of alcoholic agents, in different presentations, for the decontamination of the hands and/or cell phones, therefore, to prevent the contamination of mobile devices. OBJECTIVES: To evaluate the efficacy of the anti-bacterial hand gel versus antibacterial wipes in the decontamination of the hands, to reduce the bacterial contamination of the cellphones of med students. PARTICIPANTS: 60 cellphones of med students in their 6th year at a Peruvian university, 2019 INTERVENTION: An experimental study and cultures of gram-negatives and positive bacteria were carried out before and after a 48-hour intervention. The participants were told to use two different agents with alcohol as they were divided in four groups (n=15 each group). The sample was taken with swabs and enriched transport tubes. The analysis was made by intention to treat. RESULTS: Basal contamination of 53.33%. Bacteria isolated in basal culture: Staphylococcus coagulase negative (36%), Staphylococcus aureus (5%), Pseudomonas stutzeri (3.33%), Bacillus spp (3.33%), Candida sp, Pseudomonas aeruginosa, Bordetella hinzii, Acinetobacter baumanii and Klebsiella Pneumoniae (1.67%). Lower final contamination proportion was found in the phones of the groups that were told to use an alcoholic agent (27-53%), compared to the control group (67%), however p value was not significant. No difference was reported when we compared specific bacteria, except for Enterobacter cloacae (p=0,05) CONCLUSIONS: In the present exploratory study, there was no difference found between the intervention groups, except for Enterobacter cloacae. More studies are required.
INTRODUCCIÓN: Los dispositivos móviles son objetos susceptibles a la contaminación bacteriana y, por lo tanto, potenciales reservorios para la transmisión de enfermedades. El objetivo de este estudio fue evaluar la eficacia del uso de agentes alcohólicos en diferentes presentaciones para demostrar si al utilizarlos en las manos y/o celular, disminuye la contaminación en los celulares. OBJETIVO: Se evaluó la eficacia del alcohol gel versus paños desinfectantes para desinfectar las manos/celular con el fin de reducir la contaminación bacteriana de los dispositivos móviles de los estudiantes de medicina de una universidad privada peruana, 2019. PARTICIPANTES: 60 estudiantes de medicina de sexto año de carrera en una universidad privada peruana, 2019 INTERVENCIÓN: Se realizó un estudio experimental y cultivo de bacterias gramnegativas y positivas antes y después de una intervención de 48 horas basada en el uso de agentes desinfectantes alcohólicos en celulares de 60 estudiantes de medicina de una universidad peruana divididos en cuatro grupos aleatoriamente (n=15 en cada grupo). RESULTADOS: Contaminación basal de 53.33%. Bacterias aisladas en cultivo basal: Staphylococcus coagulasa negativo (36%), Staphylococcus aureus (5%), Pseudomona stutzeri (3.33%), Bacillus spp (3.33%), Candida sp, Pseudomona aeruginosa, Bordetella hinzii, Acinetobacter baumanii y Klebsiella Pneumoniae (1.67%). Se halló menor contaminación final en los participantes de los grupos de intervención (27-53%), en comparación con el control (67%) sin embargo, no fue significativo. Además, no se reportó diferencia alguna cuando se comparó por bacterias específicas, excepto para Enterobacter cloacae (p=0,05) CONCLUSIÓN: En el presente estudio, no hubo diferencias entre los grupos de intervención excepto para Enterobacter cloacae. Se requiere realizar más estudios.
Tesis

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Garner, Robin S. „A Comparative Analysis of Data Collection Systems Used in Radiography Educational Programs and the Role Mobile Electronic Devices Play“. Digital Commons @ East Tennessee State University, 2015. https://dc.etsu.edu/etd/2592.

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Each radiography program has a system to collect important data from didactic and clinical settings in order to accurately assess the progress and success of students, provide the needed student intervention, and provide accreditation agencies with appropriate documentation that demonstrates student success in reaching program learning outcomes. The purpose of this research study was to determine the method of data collection and documentation used by radiography programs to evaluate student progress and to examine if MEDs play a role in evaluating and documenting student skills at the point of care. The majority of radiography programs in this study were using paper methods for data collection and program directors reported value in using MEDs in clinical education but revealed that barriers still exist and will need to be addressed in order to increase their usage in clinical education.

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Chen, Tiffany L. „Haptic interaction between naive participants and mobile manipulators in the context of healthcare“. Diss., Georgia Institute of Technology, 2014. http://hdl.handle.net/1853/51770.

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Human-scale mobile robots that manipulate objects (mobile manipulators) have the potential to perform a variety of useful roles in healthcare. Many promising roles for robots require physical contact with patients and caregivers, which is fraught with both psychological and physical implications. In this thesis, we used a human factors approach to evaluate system performance and participant responses when potential end users performed a healthcare task involving physical contact with a robot. We performed four human-robot interaction studies with 100 people who were not experts in robotics (naive participants). We show that physical contact between naive participants and human-scale mobile manipulators can be acceptable and effective in a variety of healthcare contexts. In this thesis, we investigated two forms of touch-based (haptic) interaction relevant to healthcare. First, we studied how participants responded to physical contact initiated by an autonomous robotic nurse. On average, people responded favorably to robot-initiated touch when the robot indicated that it was a necessary part of a healthcare task. However, their responses strongly depended on what they thought the robot's intentions were, which suggests that this will be an important consideration for future healthcare robots. Second, we investigated the coordination of whole-body motion between human-scale robots and people by the application of forces to the robot's hands and arms. Nurses found this haptic interaction to be intuitive and preferred it over a standard gamepad interface. They also navigated the robot through a cluttered healthcare environment in less time, with fewer collisions, and with less cognitive load via haptic interaction. Through a study with expert dancers, we demonstrated the feasibility of robots as dance-based exercise partners. The experts rated a robot that used only haptic interaction to be a good follower according to subjective measures of dance quality. We also determined that healthy older adults were accepting of using a robot for partner dance-based exercise. On average, they found the robot easy and enjoyable to use and that it performed a partnered stepping task well. The findings in this work make several impacts on the design of robots in healthcare. We found that the perceived intent of robot-initiated touch significantly influenced people's responses. Thus, we determined that autonomous robots that initiate touch with patients can be acceptable in some contexts. This result highlights the importance of considering the psychological responses of users when designing physical human-robot interactions in addition to considering the mechanics of performing tasks. We found that naive users across three user groups could quickly learn how to effectively use physical interaction to lead a robot during navigation, positioning, and partnered stepping tasks. These consistent results underscore the value of using physical interaction to enable users of varying backgrounds to lead a robot during whole-body motion coordination across different healthcare contexts.

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Scandurra, Isabella. „Building Usability into Health Informatics : Development and Evaluation of Information Systems for Shared Homecare“. Doctoral thesis, Uppsala : Acta universitatis Upsaliensis, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-8403.

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Lin, Siou-Yu, und 林修宇. „Regulations on Mobile Health Application-Focusing on Medical Device Classification“. Thesis, 2016. http://ndltd.ncl.edu.tw/handle/80434846134746104574.

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碩士
國立雲林科技大學
科技法律研究所
104
As the development of technology, the function of mobile application has been developed from simple function into a variety of functions. One of them is the mobile health application which is convenient but also endangers the health of individuals. As the first country to regulate the mobile health application, Food and Drug Administration of United States has issued guidelines for the mobile health application and hope manufacturers of applications to follow guidelines. The content of guidelines distinguishes the mobile medical application from mobile health application according to the function of the application. After European Commission noticed the issue of mobile health, it launched a public consultation alongside the Green Paper on mobile health in 2014. From the Green Paper on mobile health, the direction of regulation in the future may be discovered. Together with the Green Paper, the Commission also published a Staff Working Document on the existing EU legal framework applicable to lifestyle and wellbeing apps which provided legal guidance on EU legislation to app developers and manufacturer. Guidelines on the Qualification and Classification of Stand-alone Software used in Healthcare within the Regulatory Framework of Medical Device in Europe which was issued in 2012 by European Commission DG Health and Consumer can distinguish mobile medical applications from mobile health applications. For mobile health applications in 2015, Taiwan has also issued a guidance which referred to the guidance of U.S. and EU. And this thesis is trying to compare and contrast the similarities and differences between Taiwan, U.S. and EU. Finally, this thesis is also trying to study the mobile health regulation of United States and European Union. The result of study could be valuable reference for the legislation of Taiwan.

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Yu, Yu-Yi, und 喻祐儀. „The application of applying information management technology to medical mobile device“. Thesis, 2009. http://ndltd.ncl.edu.tw/handle/67152422483034568167.

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碩士
國立暨南國際大學
資訊管理學系
97
Due to the great progress of information technology, modern computer has advanced and improved much better than before, and also popular in almost every business. The personal computers in clinics and hospitals are very power not only in computation but also in memory capacity. However, even though they are equipped with medical software, there are places in hospitals where these desktop computers can not reach. These requests have led the attention to the medical mobile devices. The mobile device has light weight and portable features, yet the software implemented is difficult to use. This study embeds the information management technologies to the development of related software in the mobile devices, which allows the medical faculties to use and enhance the patients’ health and safety.

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Ming-SungTsai und 蔡明松. „Smartphone as a Medical Device: Examining Users’ Adoption of Mobile Medical Applications – an Empirical Study from Privacy Calculus and Risk-as-Feelings Perspective“. Thesis, 2016. http://ndltd.ncl.edu.tw/handle/p974ts.

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碩士
國立成功大學
經營管理碩士學位學程(AMBA)
104
Thanks to the rapid development and popularization of smartphone and high-speed cellular networks, more and more people today are using mobile applications (apps) to conduct their sport and health management. At the same time, the European Commission has recognized the acute importance of investing in mobile health (mHealth), a kind of medical and public health practice supported by mobile devices, to address the shortage of healthcare workers in the EU countries. While mHealth holds great promise in this field, it should not also be ignored that mHealth has created a new set of risk to privacy and security since personal health information can be stored on mobile devices or shared via networks that are not secure. Drawing on the literatures of privacy calculus theory and risk-as-feelings perspective as the conceptual foundation, this study attempts to understand how privacy perceptions and calculus may influence individuals’ intention to adopt mHealth apps with a particular focus on ResearchKit, which is a killer application introduced by Apple that allows scientists and doctors to create powerful apps for medical research. In this study, 517 measurable samples were collected to empirically verify the research model and partial least squares (PLS) approach was employed as the data analysis tool. The results show that trust in app developer is the key variable to individuals’ adoption intention, and perceived risk and health status emotion both effectively moderate individuals’ adoption intention. The theoretical and practical implications, limitations, and future research directions in mHealth apps are then discussed at the end of this article.

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Chen, Si-Wen, und 陳思雯. „Exploring the Consumption Intention of Smart Living Technology Products - A Case Study of Medical Grade Mobile Health Device“. Thesis, 2017. http://ndltd.ncl.edu.tw/handle/bztxq5.

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碩士
朝陽科技大學
企業管理系
105
Wearable devices have been integrated into mobile medical applications. As the Internet of things continues to mature, demand for mobile health care increases. Moreover, with declining subreplacement fertility, aging populations, and increasing public opinion that prevention is better than cure, mobile medical technology is becoming increasingly crucial for health maintenance, health-related self-management, and delivering users’ customized information to inform the development of mobile health care. This study analyzed the unified theory of acceptance and use of technology to investigate the effects of technology readiness, performance expectancy, effort expectancy, social influence, and facilitating conditions on the usage intention of medical-grade wearables. In total, 306 questionnaires were distributed and returned. Of the returned samples, 297 were valid, yielding a valid return rate of 97%. Path analysis was performed on the research framework through structural equation modeling. The framework was modified based on the results of confirmatory factor and validity analyses. Innovativeness, optimism, safety, performance expectancy, and effort expectancy served as independent variables to examine the attitudes of surrogate consumers toward using medical-grade wearables and the effects of these attitudes on the intention to purchase such devices for older adults.The findings are as follows. First, innovativeness and safety negatively affected surrogate consumer attitudes toward using medical-grade wearables. Second, optimism positively affected surrogate consumer attitudes toward using medical-grade wearables. Third, consumer performance expectancy positively affected surrogate consumer attitudes toward using medical-grade wearables. Fourth, consumer effort expectancy negatively affected surrogate consumer attitudes toward using medical-grade wearables. Fifth, innovativeness and safety positively affected surrogate consumer behavioral intention to purchase such devices for older adults. Sixth, optimism negatively affected surrogate consumer behavioral intention to purchase such devices for older adults. Seventh, consumer performance expectancy negatively affected surrogate consumer behavioral intention to purchase such devices for older adults. eighth, consumer effort expectancy optimism affected surrogate consumer behavioral intention to purchase such devices for older adults. Ninth, surrogate consumer attitudes toward using medical-grade wearables positively affected their behavioral intention to purchase such devices for older adults. These findings could serve as a reference for the interface design or service process of medical-grade wearables.

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KAI, LIN SHIH, und 林士凱. „The Study of Intension to Apply Mobile Device in Emergency Medical Service Sites for Fire Fighters in Changhua County“. Thesis, 2018. http://ndltd.ncl.edu.tw/handle/az329h.

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碩士
大葉大學
環境工程學系研究所
106
In 2015, Changhua County Fire Department allocated a corresponding number of mobile devices on the basis of the number of ambulances on duty and installed the relevant application to simplify the ambulance process. However, this information system may not meet user expectations, and may affect the intention to use because of the factors such as the sex, age and user experience of the firefighters. In this study, Unified Theory of Acceptance and Use of Technology (UTAUT) was used as the theoretical basis. Moreover, a questionnaire was used to investigate the influencing factors of the user intent and user behavior, and the differences in the cognition and satisfaction of the firefighters in emergency sites. The study introduced the four aspects, such as performance expectation, effort expectation, social factors and facility condition to explore user intent and user behavior, and three moderating variables were added, which were sex, age and experience respectively. The results showed that performance expectations, social factors and facility conditions had a positive impact on user behavior by the intervention of user intent, and performance expectation was the most significant in these factors. Gender, age, and experience had different levels of interference on each dimension individually. In terms of cognition and satisfaction, the cognition of performance expectation by IPA analysis generally fell in the high cognitive area, and facility conditions and user intent were generally within the low cognitive area. These in the low satisfaction area were "Requirements of officer", "Education and Training" and " Assistance of specific team". Management should make a self-examination about the tough attitude of implementing the policies and strengthen all kinds of education and training for information appliance.

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CHENG-LUNG, HSU, und 許政隆. „The Research and design of Using Mobile Device on Emergency Medical Service Information System -Case Study on Perinatal Emergency Network System“. Thesis, 2007. http://ndltd.ncl.edu.tw/handle/56111185450294110206.

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碩士
國立臺北大學
資訊管理研究所
95
Due to the fact that there are varieties of GPS System on the market, it is obvious the applications of GPS are getting more and more popular in the past two years. The applications of location information provided by GPS have been discussed generally and applied practically. While the associated soft-ware and hard-ware systems are getting mature, the aim of the proposed work is to apply this concept for improving the capability of emergency medical system. Through developing the application systems on mobile device, the ability and efficiency of obtaining related resources in emergency medical process can be increased. By taking Perinatal Emergency Network System as an demonstration, the research and development of initial systems are under taking. The goals of this proposed work is through mobile a mobile device which has the ability to receive GPS data from GPS satellite and sent the location information of this system to command center server in real time. Through Google Earth application program presents all location of mobile devices which connected to the server by visualization process. Then medical groups can identify the ambulance location which equips with the mobile device and the information of patients can be also read by the mobile device.

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Chen, Liwei. „Three Essays on the Empowerment Role of Information Technology in Healthcare Services“. 2016. http://scholarworks.gsu.edu/cis_diss/62.

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Information technology (IT) is empowering consumers, service providers, and inventor teams with superior services. Various IT innovations are enabling diverse groups of people to search, exchange, and learn from information. In healthcare services, the context of the three essays of this dissertation, information resources are often not equally accessible to consumers, not transparent between patients and physicians, and hard to locate across technological domains that may be relevant to the development of breakthrough innovations. Focusing on empowering roles of IT in healthcare services, I develop a three-essay dissertation to study how IT can enable information access to (i) address health inequalities in developing regions of the world, (ii) strengthen the physician-patient relationship where patient trust in the physician has atrophied, and (iii) energize inventor teams in the development of medical device innovations. Essay 1 examines consumers’ awareness and use of mobile health that can empower consumers to access health advice information. Essay 2 investigates how online health consultation communities can empower physicians to build trust with patients, and gain social and economic advantages in competitive healthcare services. Essay 3 studies the role of digital capabilities to empower inventor teams in medical device companies by converting expertise of inventor teams into broad and deep knowledge capital and expanding knowledge production regarding medical device innovations. I adopt a pluralistic approach to collect data (surveys administered in multiple languages for Essay 1, scraping web data from online communities for Essay 2, and constructing a multisource archival panel dataset for Essay 3) and analyze data (multivariate analysis for Essay 1, multilevel modeling and econometrics for Essay 2 and Essay 3). The essays contribute to our understanding about the acceptance of empowering IT innovations, the empowering role of user-generated content in online communities for providers of credence services, and the empowering role of IT for inventor teams of healthcare innovations.

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Minshall, Simon. „Evaluating the effect of display size on the usability and the perceptions of safety of a mobile handheld application for accessing electronic medical records“. Thesis, 2018. https://dspace.library.uvic.ca//handle/1828/10092.

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INTRODUCTION: While mobile device use by physicians increases, there is an increased risk that errors committed while using mobile devices can lead to harm. This mixed-method study evaluates the effects of screen size on clinical users’ perceptions of medical application usability and safety when interfacing to critical patient information. In this research, two mobile devices are examined: iPhone® and the iPad®. METHOD: Eleven physicians and one nurse practitioner participated in a chart-review simulation using an app that was an end-point to an electronic health record. Screen-recording, video-recording and a think-aloud protocol were used to gather data during the simulation. Additionally, participants completed Likert-based questionnaires and engaged in semi-structured interviews. RESULTS: A total of 105 usability, usefulness and safety problems were recorded and analysed. A strong preference was found for the larger screen when reviewing patient data due to the large quantity of data and the increased display size. The smaller device was preferred due to the devices portability when participants needed to remain informed when they were away from the point of care. CONCLUSION: There is an association between screen size and the perceived safety of the handheld device. The iPad was perceived to be safer to use in clinical practice. Participants preferred the iPad® because of the larger size, not because they thought it was safer or easier to use. The iPhone® was preferred for its portability and its usefulness was perceived to increase with greater distance from the point of care.
Graduate

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Su, Lin-Yi, und 蘇琳詒. „A Study of Medical Students’ Intention to Use Medical Database with Mobile Devices“. Thesis, 2015. http://ndltd.ncl.edu.tw/handle/60812059621376723342.

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碩士
國立臺灣大學
圖書資訊學研究所
103
The research aim to study medical students’ behavior in using medical database and mobile devices via questionnaire survey, and analyze intention to use medical database with mobile devices. There are three factors of this study, including Convenience, Perceived Usefulness and Perceived Ease of Use, to measure medical students’ intention to use medical database with mobile devices. Most respondents used medical database at specific place, and desktop website was the interface they mainly used. They thought the Evidence-Based Medicine Database is more useful than Primary Database. All the respondents owned mobile device and used it very often, but among them there are still a few people who didn’t use mobile devices to access medical information. We found that the grades and schools of medical students affected their behavior in using medical database and mobile devices also. The study used three factors to measure medical students’ intention to use medical database with mobile devices, and results as below. (1) “Convenience” has significant impact on “Perceived Usefulness”. (2) “Perceived Ease of Use” has significant impact on “Perceived Usefulness”. (3) “Perceived Ease of Use” has significant impact on “Intention to Use”. (4) “Perceived Usefulness” has significant impact on “Intention to Use”. (5) “Convenience” has no significant impact on “Intention to Use”. According to these results, there are four suggestions for university libraries and medical libraries to consider. These four suggestions include: (1) purchasing more medical database apps that can be used in mobile devices; (2) emphasizing medical students’ mobile literacy and libraries’ promotion activities; (3) designing Evidence-Based Medicine Database instructions according to medical students’ grades; (4) strengthening instruction on information literacy for medical students.

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Chu, Yen-Yu, und 朱彥宇. „Implementation of a Medical Information Service on Android Mobile Devices“. Thesis, 2010. http://ndltd.ncl.edu.tw/handle/54447687827004144326.

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碩士
東海大學
資訊工程學系
98
The use of Google's Android SDK provides the necessary programs to develop their own, has become the goal of the program designers. However, this phone offers the Google Maps application, use the function rather limited, only provides a search, routes, maps, models, my location, location by adding features such as Google, but they cannot make use of this map we get a target-oriented The purpose, such as the need has often surprising details of the hospital pharmacy. For example, witnessed the accident, often they will hesitate to call 119 or the 110, but if the phone can be timely access to the nearest hospital phone, you can remove it a worry. Or else, suddenly thought of a trip and a shortage of medicines, you can to the distance from the nearest pharmacy to add the current requirements. Or when outside conditions, the risk of a sudden you can send an emergency distress call to a friend as well as to convey the message. This study focuses on implementation: to provide users with a basic Google Maps features, and readily available around the show where the major general hospital and the Health Department approved pharmacy information and visible landmark, as well as the link URL, so that the user directly into the website to look for a doctor appointment time or peg. And to use Gmail and SMS functionality to send the current location via GPS and distress signals. Those are not good at using modern technology products elders were easier to use, more comfortable and quick to obtain the required information.

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32

Lin, Yu-Ling, und 林育伶. „Visualization of 3D Images via Multiple Mobile Devices: A Case Study of 3D Medical Image Visualization“. Thesis, 2012. http://ndltd.ncl.edu.tw/handle/59616883368530412959.

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碩士
國立交通大學
網路工程研究所
100
In recent years, mobile device such as smart phone or tablet PC has become an indispensable device in our daily life not only because of its mobility but also its powerful functionality. Along with rapid development of hardware, in some condition, mobile device can do as much as a personal computer or more. As a result, researches about 3D visualization and interaction on mobile device arise. Considering the demand for 3D medical image viewing, we provide a novel interaction pattern to interact with 3D image using mobile devices. We develop a multi-plane 3D display system which allows user to see and interact with 3D image via multiple mobile devices. 3D image is not a traditional 3D object; it is constructed by stacking continuous 2D image data. In our system, user can see cutting faces of 3D image in any orientation by rotating mobile device. The rotation and orientation are detected by accelerometer and magnetic sensor. user can also select the position of cutting face in 3D image by cooperation of multiple mobile devices. The cooperation of mobile devices brings out a special feature, cascaded view, which has a property that cutting faces of different mobile devices are relative. Besides, we also provide user another method to change location of cutting face by touch gestures. Moreover, considering user experience, we develop retrospect and annotation functions for user to return to specific cutting face state and make note on it. About implementation, we have made a prototype of this system using computed tomography image as resource of 3D image.

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33

Cardoso, Henrique de Mesquita Guimarães e. Ferreira. „Pulmonary Auscultation using Mobile Devices - Feasibility Study in Respiratory Diseases“. Master's thesis, 2021. https://hdl.handle.net/10216/134501.

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A auscultação pulmonar convencional é essencial no controlo das doenças respiratórias. Contudo, a deteção de sons adventícios fora do ambiente hospitalar continua a ser um desafio. Nós estudámos a exequibilidade de realizar auscultação com o microfone incorporado de um smartphone em contexto clínico. Noventa e cinco pacientes (mediana[intervalo interquartil] 16[11-24] anos; 52% mulheres; 42 fibrose quística, 24 asma, 17 outras doenças respiratórias e 12 sem doença respiratória) foram recrutados nos serviços de Pediatria e Pneumologia de um hospital terciário. Os clínicos realizaram auscultação convencional em 4 locais (traqueia, peito anterior direito e bases pulmonares direita e esquerda), documentando quaisquer sons adventícios. A auscultação com o smartphone foi gravada nos mesmos locais. As gravações (n=738) foram classificadas por dois investigadores e o acordo calculado (%; kappa de Cohen(IC95%)). Foram obtidas gravações com qualidade em 88% dos participantes e 69% das gravações (91%; k=0.80(IC95% 0.75-0.85)), com uma proporção de qualidade superior na traqueia (79%) e inferior no grupo da asma (52%). Foram encontrados sons adventícios em apenas 27% dos participantes e 12% das gravações (91%; k=0.57(IC95% 0.46-0.68)), o que poderá ter contribuído para o acordo razoável entre a auscultação convencional e a auscultação com o smartphone (86%; k=0.25(IC95% 0.13-0.37)). Os nossos resultados demonstram que a auscultação com o smartphone foi exequível, mas que é necessária mais investigação para melhorar o seu acordo com a auscultação convencional.
Conventional lung auscultation is essential in the management of respiratory diseases. However, detecting adventitious sounds outside medical facilities remains challenging. We assessed the feasibility of lung auscultation using the smartphone's embedded microphone in real-world clinical practice. Ninety-five patients (median[interquartile range] 16[11-24]y; 52% female; 42 cystic fibrosis, 24 asthma, 17 other respiratory diseases and 12 no respiratory diseases) were re-cruited at Pediatrics and Pulmonology departments of a tertiary hospital. Clinicians performed conventional auscultation at 4 locations (trachea, right anterior chest, right and left lung bases), documenting any adventitious sounds. Smartphone auscultation was recorded in the same loca-tions. The recordings (n=738) were classified by two annotators and agreement calculated (%; Cohen's k(95%CI)). Recordings with quality were obtained in 88% of the participants and 69% of the recordings (91%; k=0.80(95%CI 0.75-0.85)), with the quality proportion being higher at the trachea (79%) and lower in the asthma group (52%). Adventitious sounds were present in only 27% of the participants and 12% of the recordings (91%; k=0.57(95%CI 0.46-0.68)), which may have contributed to the fair agreement between conventional and smartphone auscultation (86%; k=0.25(95%CI 0.13-0.37)). Our results show that smartphone auscultation was feasible, but further investigation is required to improve its agreement with conventional auscultation.

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34

Cardoso, Henrique de Mesquita Guimarães e. Ferreira. „Pulmonary Auscultation using Mobile Devices - Feasibility Study in Respiratory Diseases“. Dissertação, 2021. https://hdl.handle.net/10216/134501.

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A auscultação pulmonar convencional é essencial no controlo das doenças respiratórias. Contudo, a deteção de sons adventícios fora do ambiente hospitalar continua a ser um desafio. Nós estudámos a exequibilidade de realizar auscultação com o microfone incorporado de um smartphone em contexto clínico. Noventa e cinco pacientes (mediana[intervalo interquartil] 16[11-24] anos; 52% mulheres; 42 fibrose quística, 24 asma, 17 outras doenças respiratórias e 12 sem doença respiratória) foram recrutados nos serviços de Pediatria e Pneumologia de um hospital terciário. Os clínicos realizaram auscultação convencional em 4 locais (traqueia, peito anterior direito e bases pulmonares direita e esquerda), documentando quaisquer sons adventícios. A auscultação com o smartphone foi gravada nos mesmos locais. As gravações (n=738) foram classificadas por dois investigadores e o acordo calculado (%; kappa de Cohen(IC95%)). Foram obtidas gravações com qualidade em 88% dos participantes e 69% das gravações (91%; k=0.80(IC95% 0.75-0.85)), com uma proporção de qualidade superior na traqueia (79%) e inferior no grupo da asma (52%). Foram encontrados sons adventícios em apenas 27% dos participantes e 12% das gravações (91%; k=0.57(IC95% 0.46-0.68)), o que poderá ter contribuído para o acordo razoável entre a auscultação convencional e a auscultação com o smartphone (86%; k=0.25(IC95% 0.13-0.37)). Os nossos resultados demonstram que a auscultação com o smartphone foi exequível, mas que é necessária mais investigação para melhorar o seu acordo com a auscultação convencional.
Conventional lung auscultation is essential in the management of respiratory diseases. However, detecting adventitious sounds outside medical facilities remains challenging. We assessed the feasibility of lung auscultation using the smartphone's embedded microphone in real-world clinical practice. Ninety-five patients (median[interquartile range] 16[11-24]y; 52% female; 42 cystic fibrosis, 24 asthma, 17 other respiratory diseases and 12 no respiratory diseases) were re-cruited at Pediatrics and Pulmonology departments of a tertiary hospital. Clinicians performed conventional auscultation at 4 locations (trachea, right anterior chest, right and left lung bases), documenting any adventitious sounds. Smartphone auscultation was recorded in the same loca-tions. The recordings (n=738) were classified by two annotators and agreement calculated (%; Cohen's k(95%CI)). Recordings with quality were obtained in 88% of the participants and 69% of the recordings (91%; k=0.80(95%CI 0.75-0.85)), with the quality proportion being higher at the trachea (79%) and lower in the asthma group (52%). Adventitious sounds were present in only 27% of the participants and 12% of the recordings (91%; k=0.57(95%CI 0.46-0.68)), which may have contributed to the fair agreement between conventional and smartphone auscultation (86%; k=0.25(95%CI 0.13-0.37)). Our results show that smartphone auscultation was feasible, but further investigation is required to improve its agreement with conventional auscultation.

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35

Bartlett, Garth. „Anaesthetists' use of medically related mobile device applications and the evaluation of those most commonly used“. Thesis, 2018. https://hdl.handle.net/10539/25373.

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A research report submitted to the Faculty of Health Sciences, University of the Witwatersrand, in partial fulfilment of the requirements for the degree of Master of Medicine in the branch of Anaesthesiology Johannesburg, 2016.
Background: The use of mobile devices and medical software applications (apps) for mobile devices have been increasing amongst medical professionals. Medical apps can be used for a variety of functions and clinical decisions may be made based on the information provided by these apps. However these apps do not need to have a medical professional involved in the development before being made available for use. Little data could be found regarding app use amongst anaesthetists. Objectives: To describe anaesthetists in the Department of Anaesthesiology at the University of the Witwatersrand’s use of medically related mobile device applications and the assessment of the credibility of those most commonly used. Methods: Anonymous and self-administered questionnaires, requesting demographic data and information regarding apps used, were distributed among anaesthetists. From the participants list of apps the five most commonly used were assessed against a credibility template. Results: A total of 127 questionnaires (61% of the department) were distributed with 117 (92.1%) being returned. All participants owned a mobile device, the most popular brand being Apple. There were 99 (84.6%) participants who have used a medical app in their practice. Differences in app use were seen between different age groups, 88.0% in those less than 40 years vs 58.8% in those 40 years or older. More females than males (35.1% vs 22.0%) and more participants younger than 40 years (31.8% vs 10.0%) used an app daily. Daily use of apps varied from 0% to 33.3% among participants with different years of experience. The most commonly used apps were Medscape (61.6%), ECG Guide (10.1%), Qx Calculate (10.1%), The Oxford Handbook of Anaesthesiology (9.1%) and Pedistat (9.1%). Recommendation by a colleague influenced the choice of app in 40.9% of participants. The five most commonly used apps in the department all appeared credible. Conclusions: Mobile devices were owned by all participants and 84.6% made use of medical apps in their practice. The majority of participants used an app at least once a week with the older participants making less use of them. Medscape was the most frequently used app. The five most commonly used apps in the department all appear credible.
LG2018

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36

Rau, Hsiao-Hsien, und 饒孝先. „Establishing an Emergency Medical Service Information System on Mobile Devices--A Case Study of EMT in Eastern Area of Taiwan“. Thesis, 2006. http://ndltd.ncl.edu.tw/handle/92171912135056746604.

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碩士
慈濟大學
醫學資訊研究所
94
The most important function of an emergency medical service (EMS) information system is to enhance the overall quality of emergency medical services with new and mature technology, cooperated with professional skill of Emergency Medical Technician (EMT), and thereby reduce the pain and incidence of death among emergency patients. According to the statistics, the average travel time for an ambulance to commute from the accident location to the emergency room of a hospital is about ten minutes in cities and around 40 minutes in remote areas. Currently, EMTs strive to maintain the vital signs of patients during this time and document the patient’s demographic data, vital signs, reasons for needing emergency aid and during the same time, the hospitals should be informed of the patients’ conditions. If we using an EMS information system to assist EMTs in those processes of above, so EMTs can fill out the data sheet more conveniently, then the EMTs can use the extra time to better serve the medical needs for the patient. The purpose of this study was to evaluate the effectiveness of an emergency medical service information system for mobile devices. In addition, the study examined the process of connecting electronic equipment such as an IC card reader and an electronic sphygmomanometer as aides in helping the EMT gather data and judge the patient’s condition in order to offer more appropriate care. The generated data sheet was then transformed into TMT (Taiwan Electronic Medical Record Template) format as set up by this study. This data format can also be automatically converted into the hospital information system format in order to avoid previously redundant standard paper work. The study’s questionnaire was responded to by EMTs who had used the information system in field practice. Compared to the traditional paper work, the results of the t-test analysis showed a significantly higher level of satisfaction among those EMTs who used the information system. The study provided evidence that the system could be really helpful to EMT.

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37

Elguera, Fabiola Rivera, und Fabiola Rivera Elguera. „Case study “H&B Health and Benefits” for supplier selection for medical mobile devices to diabetes and hypertension control in Mexican patients“. Thesis, 2018. http://ndltd.ncl.edu.tw/handle/xp2y27.

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碩士
國立臺北科技大學
管理國際學生碩士專班 (IMBA)
106
Due to the constant innovation, new technologies, and the globalization that we are facing nowadays, companies are capable to create new international commercial alliances in order to reach their business goals. This study develops the supplier selection process in order to choose the best commercial partner to supply medical devices to decrease and treat the diabetes mellitus and hypertension diseases in Mexico; which are the main death causes in the mentioned country. A Mexican case company “H&B Health and Benefits”, plans to buy medical mobile devices connected from Bluetooth and APP to a cloud. The devices can develop the remote control in Mexican homes and improve the quality life for Mexican patients. In this study, Analytical Hierarchy Problem was applied to analyze each supplier’ criteria and sub-criteria weight in order to prioritize the requirements for the products searched. The Grey Relation Analysis was applied in order to rank the supplier alternatives according to the best performance values; resulting the best supplier selection for the Mexican patients and the case company goal. The present study can help as a reference to small and medium Mexican enterprises that want to find commercial partners around the world. It also can avoid commercial risks and provide a guideline for companies that are interested in trading with Taiwanese companies.

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