Download or read book Magnetic Bearings for Assist Devices written by Stephen Day and published by Momentum Press. This book was released on 2015-12-16 with total page 63 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book introduces magnetic bearings--mechatronic devices that produce contact-free electromagnetic force to support a load, such as a moving train or a spinning rotor. Compared to traditional bearings, magnetic bearings offer several advantages: no friction, low heat generation, no required lubrication, quiet operation, and fast and stable rotation. For these reasons, magnetic bearings have been used in rotary ventricular assist devices (VADs) to increase design life, reduce or eliminate material wear and bearing maintenance, as well as to increase biocompatibility by eliminating high fluid stresses and heat generation, both of which are associated with hemolysis, platelet activation and aggregation, and thrombus growth. The book covers the principles of these bearings, how they are used in integrated control and electronics systems, and useful information on several major brands of current assist devices.
Download or read book Magnetic Bearings for Mechanical Cardiac Assist Devices written by Steven Day and published by Momentum Press. This book was released on 2015 with total page 57 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Magnetic bearings are mechatronic devices that produce contact-free electromagnetic force to support a load, such as a moving train or a spinning rotor. Compared to traditional bearings, magnetic bearings offer several advantages: no friction, low heat generation, no required lubrication, quiet operation, and fast and stable rotation. Because of these reasons, magnetic bearings have been used in rotary ventricular assist devices (VADs) to increase design life, reduce or eliminate material wear and bearing maintenance, as well as to increase biocompatibility by eliminating high fluid stresses and heat generation, both of which are associated with hemolysis, platelet activation and aggregation, and thrombus growth. In this monograph, magnetic bearings and their application in VADs are introduced. First, the operating principles of magnetic bearings are introduced. Typical structures of passive bearings, which are comprised solely of permanent magnets, and active magnetic bearings (AMB), which make use of electromagnets and position sensors to control the position of the rotor, are described. We include some description of all the components of a typical AMB system, including actuator, position sensor, controller, and amplifier, as well as different structures of electromagnet actuators, coils design, and iron selection. A range of position sensors, including those typically used in blood pumps, as well as self-sensing bearings are discussed. The basics of the hardware and the software (control laws) that comprise a typical magnetic bearing system are described. A section describes the performance considerations of magnetic bearings and the effect on the overall performance of an assist device that uses magnetic bearings. Lastly, the magnetic suspension of existing VADs with magnetic bearings are described: Berlin Heart INCOR, Heartware HVAD, WorldHeart Levacor and MiFlow, Terumo Duraheart, PediaFlow, MiTiHeart, and LEV-VAD."--Abstract.
Download or read book Magnetic Bearings written by Gerhard Schweitzer and published by Springer Science & Business Media. This book was released on 2009-06-10 with total page 541 pages. Available in PDF, EPUB and Kindle. Book excerpt: Compiling the expertise of nine pioneers of the field, Magnetic Bearings - Theory, Design, and Application to Rotating Machinery offers an encyclopedic study of this rapidly emerging field with a balanced blend of commercial and academic perspectives. Every element of the technology is examined in detail, beginning at the component level and proceeding through a thorough exposition of the design and performance of these systems. The book is organized in a logical fashion, starting with an overview of the technology and a survey of the range of applications. A background chapter then explains the central concepts of active magnetic bearings while avoiding a morass of technical details. From here, the reader continues to a meticulous, state-of-the-art exposition of the component technologies and the manner in which they are assembled to form the AMB/rotor system. These system models and performance objectives are then tied together through extensive discussions of control methods for both rigid and flexible rotors, including consideration of the problem of system dynamics identification. Supporting this, the issues of system reliability and fault management are discussed from several useful and complementary perspectives. At the end of the book, numerous special concepts and systems, including micro-scale bearings, self-bearing motors, and self-sensing bearings, are put forth as promising directions for new research and development. Newcomers to the field will find the material highly accessible while veteran practitioners will be impressed by the level of technical detail that emerges from a combination of sophisticated analysis and insights gleaned from many collective years of practical experience. An exhaustive, self-contained text on active magnetic bearing technology, this book should be a core reference for anyone seeking to understand or develop systems using magnetic bearings.
Download or read book Magnetic Bearings Magnetic Drives and Dry Gas Seals Conference written by and published by CRC Press. This book was released on 1995-08-08 with total page 396 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bioengineering and Biomaterials in Ventricular Assist Devices written by Eduardo Guy Perpétuo Bock and published by CRC Press. This book was released on 2021-10-07 with total page 363 pages. Available in PDF, EPUB and Kindle. Book excerpt: Often associated with artificial hearts, ventricular assist devices (VADs) are blood pumps that can provide circulatory assistance to the left ventricle, the right ventricle, or both. Bioengineering and Biomaterials in Ventricular Assist Devices reviews constructive details of VADs and the biomaterials used in their development and support. FEATURES Establishes an area of intersection between engineering and medicine Shows process development from mechanical design to automation and control Discusses biofunctional materials, tribology in ceramic biomaterials, biosensors, and surface engineering and blood This text is aimed at advanced students, researchers, and practicing engineers conducting work on VADs and will be of interest to a broad interdisciplinary group, including bioengineers, materials engineers, chemical engineers, mechanical engineers, and electrical engineers.
Download or read book Vascular Engineering written by Kazuo Tanishita and published by Springer. This book was released on 2016-03-17 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book describes the fundamental biology and mechanics of the vasculature and examines how this knowledge has underpinned the development of new clinical modalities, including endovascular treatment and vascularization of reconstructed tissue for regenerative medicine. Vascular engineering is a multidisciplinary field integrating vascular biology, hemodynamics, biomechanics, tissue engineering, and medicine. Each chapter offers insights into the dynamics of the circulatory system and explains how the impact of related disease conditions — atherosclerosis, hypertension, myocardial ischemia, and cerebral infarction — has generated a focus on developing expertise to both maintain and treat the vascular system. As a comprehensive book in this expanding area, Vascular Engineering serves as a valuable resource for clinicians as well as academics and professionals working in biophysics, biomedical engineering, and nano and microrheology. Graduate students in these subject areas will also find this volume insightful.
Download or read book Innovations in Biomedical Engineering written by Marek Gzik and published by Springer. This book was released on 2017-10-24 with total page 417 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents the proceedings of the “Innovations in Biomedical Engineering IBE’2017” Conference held in Zabrze, Poland from October 19 to 20, 2017, and discusses recent research on innovations in biomedical engineering. The book covers a broad range of subjects related to biomedical engineering innovations. Divided into four parts, it presents state-of-the-art advances in: Engineering of biomaterials, Modelling and simulations in biomechanics, Informatics in medicine, and Signal analysis.By doing so, it helps bridge the gap between technological and methodological engineering achievements on the one hand and clinical requirements in the three major areas diagnosis, therapy and rehabilitation on the other.
Download or read book Mechanical Circulatory Support A Companion to Braunwald s Heart Disease Ebook written by Robert L. Kormos and published by Elsevier Health Sciences. This book was released on 2011-08-30 with total page 367 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mechanical Circulatory Support, by Drs. Robert L. Kormos and Leslie W. Miller, provides the clinically relevant information you need to effectively use this therapy to treat and manage end-stage cardiovascular disease. In this Companion to Braunwald’s Heart Disease, the world’s most prominent experts in mechanical circulatory support (MCS) cover basic science, device construction, clinical applications, socioeconomic implications, future directions, and more. Stay on top of hot topics - including innovative devices like continuous flow pumps, next-generation centrifugal pumps, and total artificial hearts; MCS for pediatric and congenital heart disease; cellular, molecular, genomic, and functional changes that occur in the failing heart in response to MCS; and Interagency Registry of Mechanically Assisted Circulatory Support (INTERMACS) as a tool to track and advance clinical practice. Tap into discussions of hot topics in mechanical circulatory support (MCS), including current types of devices and clinical settings for MCS; MCS for pediatric and congenital heart disease; myocardial recovery, regenerative therapy, bleeding and thrombosis with MCS; cellular, molecular, genomic, and functional changes that occur in the failing heart in response to MCS; and Interagency Registry of Mechanically Assisted Circulatory Support (INTERMACS) as a tool to track and advance clinical practice. Get a complete picture of the role of mechanical circulatory support in treatment through coverage of device construction, clinical applications, socioeconomic implications, and future directions. Master the pathophysiology and rationale of treatment with discussions of basic science in addition to clinically-relevant information and current clinical practice guidelines. Apply the expertise of the world’s most prominent leaders in mechanical circulatory support.
Download or read book Mechanical Circulatory and Respiratory Support written by Shaun D. Gregory and published by Elsevier. This book was released on 2024-11-01 with total page 1374 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mechanical Circulatory and Respiratory Support, Second Edition, continues to provide a comprehensive overview of the past, present and future development of mechanical circulatory and respiratory support devices. This new edition provides an update on the field while also introducing new elements within the field such as ex-vivo perfusion, devices for HFpEF, design for manufacture, oxygenator design, and more content on route to market. Chapters from over 60 internationally-renowned experts focuses on the entire life-cycle of mechanical circulatory and respiratory support – from the descent into heart and lung failure, alternative medical management, device options, device design, implantation techniques, complications and medical management of the supported patient, patient-device interactions, cost effectiveness, route to market and a view to the future. This second edition is a useful resource for biomedical engineers and clinicians who are designing new mechanical circulatory or respiratory support devices, while also providing a comprehensive guide of the entire field for those who are already familiar with some areas and want to learn more. Reviews of the most cutting-edge research are provided throughout each chapter, along with guides on how to design new devices and which areas require specific focus for future research and development. - Presents an engineering pathway to develop the most advanced medical devices - Features a clinical summary of how to select the right patients and treat them optimally while supported with these devices - Includes a detailed path to market for those developing new devices in this field
Download or read book Cumulated Index Medicus written by and published by . This book was released on 1997 with total page 1872 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Biomedical Engineering Handbook written by Joseph D. Bronzino and published by CRC Press. This book was released on 2018-10-03 with total page 5245 pages. Available in PDF, EPUB and Kindle. Book excerpt: The definitive bible for the field of biomedical engineering, this collection of volumes is a major reference for all practicing biomedical engineers and students. Now in its fourth edition, this work presents a substantial revision, with all sections updated to offer the latest research findings. New sections address drugs and devices, personalized medicine, and stem cell engineering. Also included is a historical overview as well as a special section on medical ethics. This set provides complete coverage of biomedical engineering fundamentals, medical devices and systems, computer applications in medicine, and molecular engineering.
Download or read book Mechanical Support for Heart Failure written by Jamshid H. Karimov and published by Springer Nature. This book was released on 2020-09-04 with total page 734 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a comprehensive overview of mechanical circulatory support of the failing heart in adults and children. The book uniquely combines engineering knowledge and the clinician’s perspective into a single resource, while also providing insights into current and future development of mechanical circulatory support technology, such as ventricular assist devices, the total artificial heart and catheter-based technologies for heart failure. Topics featured in this book include: The history of mechanical circulatory device development. Fundamentals of hemodynamics support. Clinical management of mechanical circulatory devices. Surgical implantation techniques. Current limitations of device therapies in advanced heart failure. Advanced and novel devices in the development pipeline. Opportunities for advancement in the field. Mechanical Support for Heart Failure: Current Solutions and New Technologies is a must-have resource for not only physicians, residents, fellows, and medical students in cardiology and cardiac surgery, but also clinical and basic researchers in biomedical engineering with an interest in mechanical circulatory support, heart failure, and new technological applications in medicine.
Download or read book 5th International Conference on Nanotechnologies and Biomedical Engineering written by Ion Tiginyanu and published by Springer Nature. This book was released on 2022-01-01 with total page 788 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book gathers the proceedings of the 5th International Conference on Nanotechnologies and Biomedical Engineering, held online on November 3–5, 2021, from Chisinau, Republic of Moldova. It covers fundamental and applied research at the interface between nanotechnologies and biomedical engineering. Chapters report on cutting-edge bio-micro/nanotechnologies, devices for biomedical applications, and advances in bio-imaging and biomedical signal processing, innovative nano-biomaterials as well as advances in e-health, medical robotics, and related topics. With a good balance of theory and practice, the book offers a timely snapshot of multidisciplinary research at the interface between physics, chemistry, biomedicine, materials science, and engineering.
Download or read book Mechanical Circulatory Support A Companion to Braunwald s Heart Disease Ebook written by James K Kirklin and published by Elsevier Health Sciences. This book was released on 2019-07-09 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt: Offering comprehensive, authoritative coverage of mechanical circulatory support (MCS), this fully revised companion to Braunwald's Heart Disease provides the clinically relevant information you need to effectively use this therapy to treat and manage end-stage heart failure. New editors and authors – experts in both cardiology and cardiovascular surgery – bring you fully up to date with the newest technology and devices, as well as basic science, clinical applications, adverse event monitoring and management, socioeconomic implications, future directions, and more. - Covers all of the newest techniques, including new-generation devices. - Discusses the management of common patient problems, highlighting cautions and outcomes, as well as pathophysiology and rationale for treatment. - Brings you up to speed with the latest coverage of ventricular assist devices (VAD), extracorporeal membrane oxygenation (ECMO), next-generation centrifugal pumps, and total artificial hearts. - Provides a complete clinical perspective of the latest scientific breakthroughs and analysis of the current literature. - Includes coverage of the most recent guidelines and protocols, including MCS for pediatric and congenital heart disease; the Interagency Registry of Mechanically Assisted Circulatory Support (INTERMACS) as a tool to track and advance clinical practice; and cellular, molecular, genomic, and functional changes that occur in the failing heart in response to MCS. - Presents practical evidence from the registry of thousands of cases to guide cardiologists, cardiovascular surgeons, emergency physicians, primary care physicians, and other team members on the best management course to follow for each particular patient. - Enhanced eBook version included with purchase, which allows you to access all of the text, figures, and references from the book on a variety of devices
Download or read book Artificial Hearts written by Shelley McKellar and published by JHU Press. This book was released on 2018-01-01 with total page 373 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive history of the development of artificial hearts in the United States. Artificial hearts are seductive devices. Their promissory nature as a cure for heart failure aligned neatly with the twentieth-century American medical community’s view of the body as an entity of replacement parts. In Artificial Hearts, Shelley McKellar traces the controversial history of this imperfect technology beginning in the 1950s and leading up to the present day. McKellar profiles generations of researchers and devices as she traces the heart’s development and clinical use. She situates the events of Dr. Michael DeBakey and Dr. Denton Cooley’s professional fall-out after the first artificial heart implant case in 1969, as well as the 1982–83 Jarvik-7 heart implant case of Barney Clark, within a larger historical trajectory. She explores how some individuals—like former US Vice President Dick Cheney—affected the public profile of this technology by choosing to be implanted with artificial hearts. Finally, she explains the varied physical experiences, both negative and positive, of numerous artificial heart recipients. McKellar argues that desirability—rather than the feasibility or practicality of artificial hearts—drove the invention of the device. Technical challenges and unsettling clinical experiences produced an ambivalence toward its continued development by many researchers, clinicians, politicians, bioethicists, and the public. But the potential and promise of the artificial heart offset this ambivalence, influencing how success was characterized and by whom. Packed with larger-than-life characters—from dedicated and ardent scientists to feuding Texas surgeons and brave patients—this book is a fascinating case study that speaks to questions of expectations, limitations, and uncertainty in a high-technology medical world.
Download or read book Intelligent Systems Design and Applications written by Ajith Abraham and published by Springer Nature. This book was released on 2021-06-02 with total page 1440 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book highlights recent research on intelligent systems and nature-inspired computing. It presents 130 selected papers from the 19th International Conference on Intelligent Systems Design and Applications (ISDA 2020), which was held online. The ISDA is a premier conference in the field of computational intelligence, and the latest installment brought together researchers, engineers and practitioners whose work involves intelligent systems and their applications in industry. Including contributions by authors from 40 countries, the book offers a valuable reference guide for all researchers, students and practitioners in the fields of Computer Science and Engineering.
Download or read book Mechanism and Machine Science written by Xianmin Zhang and published by Springer. This book was released on 2016-11-15 with total page 1515 pages. Available in PDF, EPUB and Kindle. Book excerpt: These proceedings collect the latest research results in mechanism and machine science, intended to reinforce and improve the role of mechanical systems in a variety of applications in daily life and industry. Gathering more than 120 academic papers, it addresses topics including: Computational kinematics, Machine elements, Actuators, Gearing and transmissions, Linkages and cams, Mechanism design, Dynamics of machinery, Tribology, Vehicle mechanisms, dynamics and design, Reliability, Experimental methods in mechanisms, Robotics and mechatronics, Biomechanics, Micro/nano mechanisms and machines, Medical/welfare devices, Nature and machines, Design methodology, Reconfigurable mechanisms and reconfigurable manipulators, and Origami mechanisms. This is the fourth installment in the IFToMM Asian conference series on Mechanism and Machine Science (ASIAN MMS 2016). The ASIAN MMS conference initiative was launched to provide a forum mainly for the Asian community working in Mechanism and Machine Science, in order to facilitate collaboration and improve the visibility of activities in the field. The series started in 2010 and the previous ASIAN MMS events were successfully held in Taipei, China (2010), Tokyo, Japan (2012), and Tianjin, China (2014). ASIAN MMS 2016 was held in Guangzhou, China, from 15 to 17 December 2016, and was organized by the South China University under the patronage of the IFToMM and the Chinese Mechanical Engineering Society (CMES). The aim of the Conference was to bring together researchers, industry professionals and students from the broad range of disciplines connected to Mechanism Science in a collegial and stimulating environment. The ASIAN MMS 2016 Conference provided a platform allowing scientists to exchange notes on their scientific achievements and establish new national and international collaborations concerning the mechanism science field and its applications, mainly but not exclusively in Asian contexts.
