The Artificial Pancreas

Book Description :

The Artificial Pancreas: Current Situation and Future Directions presents research on the top issues relating to the artificial pancreas (AP) and its application to diabetes. AP is a newer form of treatment to accurately and efficiently inject insulin, thereby significantly improving the patient's quality of life. By connecting a continuous glucose monitor (CGM) to a continuous subcutaneous insulin infusion using a control algorithm, AP delivers and regulates the most accurate amount of insulin to maintain normal glycemic values. Featured chapters in this book are written by world leaders in AP research, thus providing readers with the latest studies and results.

Book Description :

This brief introduces recursive modeling techniques that take account of variations in blood glucose concentration within and between individuals. It describes their use in developing multivariable models in early-warning systems for hypo- and hyperglycemia; these models are more accurate than those solely reliant on glucose and insulin concentrations because they can accommodate other relevant influences like physical activity, stress and sleep. Such factors also contribute to the accuracy of the adaptive control systems present in the artificial pancreas which is the focus of the brief, as their presence is indicated before they have an apparent effect on the glucose concentration and so can be more easily compensated. The adaptive controller is based on generalized predictive control techniques and also includes rules for changing controller parameters or structure based on the values of physiological variables. Simulation studies and clinical studies are reported to illustrate the performance of the techniques presented.

Book Description :

An important resource that puts the focus on the chemical engineering aspects of biomedical engineering In the past 50 years remarkable achievements have been advanced in the fields of biomedical and chemical engineering. With contributions from leading chemical engineers, Biomedical Engineering Challenges reviews the recent research and discovery that sits at the interface of engineering and biology. The authors explore the principles and practices that are applied to the ever-expanding array of such new areas as gene-therapy delivery, biosensor design, and the development of improved therapeutic compounds, imaging agents, and drug delivery vehicles. Filled with illustrative case studies, this important resource examines such important work as methods of growing human cells and tissues outside the body in order to repair or replace damaged tissues. In addition, the text covers a range of topics including the challenges faced with developing artificial lungs, kidneys, and livers; advances in 3D cell culture systems; and chemical reaction methodologies for biomedical imagining analysis. This vital resource: Covers interdisciplinary research at the interface between chemical engineering, biology, and chemistry Provides a series of valuable case studies describing current themes in biomedical engineering Explores chemical engineering principles such as mass transfer, bioreactor technologies as applied to problems such as cell culture, tissue engineering, and biomedical imaging Written from the point of view of chemical engineers, this authoritative guide offers a broad-ranging but concise overview of research at the interface of chemical engineering and biology.

Book Description :

The Artificial Pancreas: Current Situation and Future Directions presents research on the top issues relating to the artificial pancreas (AP) and its application to diabetes. AP is a newer form of treatment to accurately and efficiently inject insulin, thereby significantly improving the patient’s quality of life. By connecting a continuous glucose monitor (CGM) to a continuous subcutaneous insulin infusion using a control algorithm, AP delivers and regulates the most accurate amount of insulin to maintain normal glycemic values. Featured chapters in this book are written by world leaders in AP research, thus providing readers with the latest studies and results. Focuses on Type 1 Diabetes Mellitus (T1DM) that is primarily found in children and typically treated by means of a syringe or insulin pump Features research and results from top academic experimental groups, and from universities such as Harvard (USA), the University of Virginia (USA), the University of Padova (Italy), the University of Montpellier (France), and the Buenos Aires Institute of Technology (Argentina) Discusses clinical trials of AP from around the world, including the United States, the EU, Latin America, and Israel

Book Description :

Automated insulin delivery goes by many names: hybrid or full closed loop; artificial pancreas system (APS); "looping" and more. They are not all the same, though. You have choices, ranging from the type of pump body and CGM you want to use, to the algorithm and controller, to the interoperability and remote monitoring options, and more. Like switching from multiple daily injections to an insulin pump, switching from manual diabetes to automated insulin delivery has a learning curve. It's certainly one you can tackle. After all, you're already tackling type 1 diabetes! You already have the base knowledge and experience you need to succeed with a closed loop system, if it's right for you. But you might be wondering how to get ahead of your learning curve before you start or even choose an APS, or you've started and want to dig even deeper into optimizing how an automated insulin delivery system fits into your lifestyle. This book was written for you! It leverages the collective knowledge of the early adopters of do-it-yourself and commercial systems from the past five years and packages it into easy, understandable guides and lessons learned.In this book, you'll find new analogies to help you understand - and explain - this new method of diabetes management, and tips on how to communicate with your healthcare provider(s) about it. You'll see stories and examples from real families and individuals living with type 1 diabetes and how they benefit from artificial pancreas systems, and why they chose and continue to choose to use them. You'll be empowered to understand the basic components of artificial pancreas systems, how they work, and what questions to ask as you peruse your choices now and in the future. This book also includes a foreword by Aaron Kowalski, President and CEO of JDRF, and co-founder of the JDRF Artificial Pancreas Project. "I will immediately recommend this book not just to people looking to use a DIY closed loop system, but also to anybody looking to improve their grasp on the management of type 1 diabetes, whether patient, caregiver, or healthcare provider." - Aaron Neinstein, MD (Endocrinologist, UCSF)

Book Description :

The current epidemic of diabetes, obesity and related disorders is a driving force in the development of new technologies. Technological advances offer great new opportunities for the treatment of these chronic diseases. This review presents an update of developments that promise to revolutionize the treatment of diabetes. It examines hospital and outpatient care, intensive insulin therapy, blood glucose monitoring and innovative steps towards the construction of an artificial pancreas. Providing a comprehensive overview on the latest advances, this volume of Frontiers in Diabetes will be of particular interest to all healthcare providers involved in the daily management of patients with diabetes or related diseases.

Book Description :

Download The Artificial Pancreas a Challenge to Research book written by Arianne Cornelia van Bon, available in PDF, EPUB, and Kindle, or read full book online anywhere and anytime. Compatible with any devices.

Book Description :

Master's Thesis from the year 2022 in the subject Health - Digital Health Management, grade: 1.0, University College London, language: English, abstract: This paper is about the cost-effectiveness of hybrid closed-loop artificial pancreas systems in patients with type 1 diabetes. Advances in diabetes technology over the past decade have culminated in the commercialization of hybrid closed-loop (HCL) artificial pancreas systems, alleviating the onus of self-management in type 1 diabetes (T1D). Clinical effectiveness benefits over conventional systems are well-documented. However, no systematic review has been performed on the cost-effectiveness of HCL systems, even if health economic assessments are integral to guide policy decisions. To perform a systematic review, critical analysis, and narrative synthesis of available economic evaluations of HCL systems for T1D patients and upcoming cost-effectiveness studies within the research pipeline. A systematic search was conducted following the PRISMA 2020 guidelines in MEDLINE, Embase, and CENTRAL via Ovid in October 2021. A review of trial registries and grey literature, as well as reference list and forward citation search, complemented the search. Predefined eligibility criteria were used. Retrieved studies underwent CHEERS-based quality assessment. Data were subsequently extracted via a standardized data extraction form. Results were presented through narrative synthesis, dominance ranking framework, and display of standardized ICERs (in 2021 GBP) in a cost-effectiveness plane. Of the 213 records retrieved via systematic review and 331 identified through other search methods, 8 were included in the review and 11 in the research pipeline. Overall, included studies demonstrated good quality. Standardized ICERs ranged from 5,688 to 30,293 GBP per QALY gained. Limitations of included evidence were discussed in detail and contain lack of long-term effectiveness data and inter-system comparisons, as well as possible conflicts of interest. Overall results suggest cost-effectiveness for HCL systems compared to current treatment standards such as CSII, CGM, and SAP. Additional high-quality, large scale, and long-term economic research is required to assess health economic outcomes for HCL technology in clinical practice. This thesis provides fundamental starting points in the research pipeline as a basis of further research.

Book Description :

Download The Potential of an Artificial Pancreas book written by United States. Congress. Senate. Committee on Homeland Security and Governmental Affairs, available in PDF, EPUB, and Kindle, or read full book online anywhere and anytime. Compatible with any devices.

Book Description :

"In this thesis we investigated the efficacy of real-life use of an artificial pancreas starting with use of these systems in a hotel setting and finally 24/7 long-term use at home. We investigated the accuracy of continuous glucose monitoring (CGM) systems that act as input for the artificial pancreas or for use in combination with an insulin pump or pen. Since CGM data are used for insulin-dosing, their accuracy and reliability are essential. Our research on two commonly used CGM systems indicates that measurement accuracy differs to an extent that is clinically relevant. We show that a novel category of implantable CGM can perform safely and accurately over a lifetime of up to 180 days whereas current CGM have a lifetime of 7 days. Innovations as these provide opportunities for use in artificial pancreas systems. Our results indicate that an artificial pancreas can be used safely and effectively not only during night-time in a hotel environment but also during long term day and night use. The artificial pancreas improves glycaemic control including a reduction of time spent in hypoglycaemia, hyperglycaemia and HbA1c compared to open-loop use of a sensor and pump. Use of an adaptive, self-learning, artificial pancreas further improves glycaemic control during night-time. Participants appreciate the positive effects on glucose regulation but technical errors limit their appreciation for the current system. We conclude that the artificial pancreas facilitates good glucose control and holds the promise to alleviate the disease burden improving the life of a person with diabetes substantially."--Samenvatting auteur.

Book Description :

"The artificial pancreas is an emerging technology to treat type 1 diabetes. The artificial pancreas, also known as closed-loop insulin delivery, is comprised of three components: an insulin pump, a continuous glucose monitor, and a control algorithm that modulates insulin delivery based on glucose levels. The goal of the artificial pancreas is to improve glycemic control, decrease low blood glucose levels, and reduce patient burden by responding to the glucose variability by modulating insulin delivery in real time. Determining important artificial pancreas tuning parameters, optimal basal rates and carbohydrate ratios, may improve the performance of the artificial pancreas and improve glycemic control. However, due to interpatient and intrapatient variabilities, determining these parameters is a challenging task. We have developed a learning algorithm that works alongside the artificial pancreas algorithm that updates basal rates and carbohydrate ratios daily. The learning algorithm examines daily glucose, insulin, and meal data to make changes in patients’ basal rates and insulin to carbohydrate ratios. The objective of this thesis was to test our artificial pancreas system with and without the learning algorithm using a randomized crossover clinical trial in children and adolescents at a diabetes camp"--

Book Description :

"The thesis focuses on the control of blood glucose devices and design of implantable devices, and offers valuable insights on diabetes mellitus and related physiology and treatments. Diabetes mellitus is a widespread chronic disease in the modern world that affects millions of people around the globe. In Singapore, one in ten of the population has diabetes, and the severity of the problem has prompted the country's prime minister to talk about the disease at the National Day Rally in 2017. Designing an artificial pancreas that can provide effective blood glucose control for individuals with diabetes is one of the most challenging engineering problems. The author reports on research into the development of an implantable artificial pancreas that can regulate blood glucose levels by delivering appropriate dosages of insulin when necessary. By sensing blood glucose and injecting insulin directly into the vein, the implantable device aims to remove delays that occur with subcutaneous blood glucose sensing and insulin delivery. Preliminary in-vitro and in-vivo experimental results suggest that the implantable device for blood glucose control could be a clinically viable alternative to pancreas transplant."--

Book Description :

This book covers the main fields of diabetes management through applied technologies. The different chapters include insulin therapy through basic insulin injection therapy, external and implantable insulin pumps and the more recent approaches such as sensor augmented pumps and close-loop systems. Islet transplantation is also described through its technical aspects and clinical evaluation. Glucose measurement through blood glucose meters and continuous glucose monitoring systems are comprehensively explained. Educational tools including videogames and software dedicated to diabetes management are depicted. Lastly, Telemedicine systems devoted to data transmission, telemonitoring and decision support systems are described and their use for supporting health systems are summarized. This book will help professionals involved in diabetes management understanding the contribution of diabetes technologies for promoting the optimization of glucose control and monitoring. This volume will be helpful in current clinical practice for diabetes management and also beneficial to students.

Book Description :

The International Textbook of Diabetes Mellitus has been a successful, well-respected medical textbook for almost 20 years, over 3 editions. Encyclopaedic and international in scope, the textbook covers all aspects of diabetes ensuring a truly multidisciplinary and global approach. Sections covered include epidemiology, diagnosis, pathogenesis, management and complications of diabetes and public health issues worldwide. It incorporates a vast amount of new data regarding the scientific understanding and clinical management of this disease, with each new edition always reflecting the substantial advances in the field. Whereas other diabetes textbooks are primarily clinical with less focus on the basic science behind diabetes, ITDM's primary philosophy has always been to comprehensively cover the basic science of metabolism, linking this closely to the pathophysiology and clinical aspects of the disease. Edited by four world-famous diabetes specialists, the book is divided into 13 sections, each section edited by a section editor of major international prominence. As well as covering all aspects of diabetes, from epidemiology and pathophysiology to the management of the condition and the complications that arise, this fourth edition also includes two new sections on NAFLD, NASH and non-traditional associations with diabetes, and clinical trial evidence in diabetes. This fourth edition of an internationally recognised textbook will once again provide all those involved in diabetes research and development, as well as diabetes specialists with the most comprehensive scientific reference book on diabetes available.

Book Description :

"Most patients with type 1 diabetes do not achieve glycemic targets. Glucose-responsive closed-loop hormonal delivery that automatically regulates glucose levels (the "artificial pancreas") is a long-awaited goal for diabetes and its development was recently triggered by advances in glucose sensors and infusion pumps. The objective of this thesis is to accel-erate the development of closed-loop delivery systems. Closed-loop regulation of postprandial glucose remains a major challenge, but could be overcome with better understanding of postprandial glucose fluxes. However, ill-conditioning of the computational problem accompanying dual- and triple-tracer experimental techniques hinder their assessment. In this thesis, a novel computational method based on Bayesian inference to estimate postprandial glucose fluxes is presented. The method is then used to validate the dual- and triple-tracer techniques against an independent standard and shows that both methods provide accurate estimates of glucose appearance. Pre-clinical testing of closed-loop systems in a computer-simulation environment facilitates optimization of dosing algorithms. In this thesis, a novel fully probabilistic method to generate stochastic virtual patients for the assessment of closed-loop systems is presented. The method performs one to one mapping of an individual's experimental data into a stochastic virtual patient in a process we termed "stochastic e-cloning". Finally, a novel bi-hormonal (insulin and glucagon) closed-loop delivery system is presented. The dosing algorithm is based on fuzzy-supervised model predictive controller combined with extended Kalman filtering and a set of heuristic rules. The system is compared with conventional pump therapy in 15 patients for a 15-hour experimental period (4pm-7am) utilizing a randomized crossover study design. The closed-loop system significantly improves glucose control and reduces the risk of hypoglycemia." --

Book Description :

Gluconeogenesis, the metabolic process through which glucose or glycogen is synthesized from noncarbohydrate substrates, is critical for maintaining the plasma glucose level within a narrow range either in the fed or fasting (nutritional deprivation) state. Dysregulation of this pathway usually causes severe or even fatal outcomes. This book discusses a series of up-to-date topics about this critical process, including the fundamental biochemical reactions of glucose metabolism, the glucogenesis process in eukaryotic cells using the Dictyostelium discoideum as a model, the role of "gut-brain-liver axis" in the control of glucose homeostasis, and the new mathematic model for the monitoring and prediction of blood glucose. This book is written by international scientists with expertise in the study of gluconeogenesis. By presenting a clear and succinct review of the fundamentals of gluconeogenesis, it is expected to draw more attentions and stimulate more scientists to dedicate their researches in revealing the mechanism and its application of gluconeogenesis.

Book Description :

Type 1 diabetes mellitus (T1DM) is a chronic disease characterized by the body's inability to produce insulin, leading to chronically high blood glucose (BG) concentrations. T1DM is treated by frequent self-administration of insulin based on BG measurements; however, there is a fine line between too little and too much insulin, and an overdose can lead to a dangerous drop in BG. The artificial pancreas (AP), consisting of a glucose sensor, an insulin pump, and a feedback control algorithm, will replace self-treatment by automatically calculating and delivering insulin dosages based on continuous glucose measurements. Many iterations of the AP utilize commercially available subcutaneous (SC) insulin pumps and glucose sensors, but these devices introduce physiological limitations that make control difficult.

Book Description :

Download The Artificial Pancreas in Children and Adolescents with Type 1 Diabetes book written by Martin Tauschmann, available in PDF, EPUB, and Kindle, or read full book online anywhere and anytime. Compatible with any devices.

Book Description :

The past few years have seen the attention and rapid developments in event-triggered sampled-data systems, in which the effect of event-triggered sensor measurements and controller updates is explored in controller analysis and design. This book offers the first systematic treatment of event-triggered sampled-data control system design using active disturbance rejection control (ADRC), an effective approach that is popular in both theoretic research and industrial applications. Extensive application examples with numerous illustrations are included to show how the event-triggered ADRC with theoretic performance guarantees can be implemented in engineering systems and how the performance can be actually achieved. For theoretic researchers and graduate students, the presented results provide new directions in theoretic research on event-triggered sampled-data systems; for control practitioners, the book offers an effective approach to achieving satisfactory performance with limited sampling rates.

Book Description :

Glucose Monitoring Devices: Measuring Blood Glucose to Manage and Control Diabetes presents the state-of-the-art regarding glucose monitoring devices and the clinical use of monitoring data for the improvement of diabetes management and control. Chapters cover the two most common approaches to glucose monitoring–self-monitoring blood glucose and continuous glucose monitoring–discussing their components, accuracy, the impact of use on quality of glycemic control as documented by landmark clinical trials, and mathematical approaches. Other sections cover how data obtained from these monitoring devices is deployed within diabetes management systems and new approaches to glucose monitoring. This book provides a comprehensive treatment on glucose monitoring devices not otherwise found in a single manuscript. Its comprehensive variety of topics makes it an excellent reference book for doctoral and postdoctoral students working in the field of diabetes technology, both in academia and industry. Presents a comprehensive approach that spans self-monitoring blood glucose devices, the use of continuous monitoring in the artificial pancreas, and intraperitoneal glucose sensing Provides a high-level descriptions of devices, as well as detailed mathematical descriptions of methods and techniques Written by experts in the field with vast experience in the field of diabetes and diabetes technology