Magnetic Bearings for Assist Devices
Magnetic Bearings for Assist Devices

Author: Stephen Day

Publisher: Momentum Press

Published: 2015-12-16

Total Pages: 63

ISBN-13: 1606509209

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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.

Artificial Hearts
Artificial Hearts

Author: Shelley McKellar

Publisher: JHU Press

Published: 2018-01-01

Total Pages: 373

ISBN-13: 1421423561

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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.

Bioengineering and Biomaterials in Ventricular Assist Devices
Bioengineering and Biomaterials in Ventricular Assist Devices

Author: Eduardo Guy Perpétuo Bock

Publisher: CRC Press

Published: 2021-10-07

Total Pages: 350

ISBN-13: 1000462897

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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.

Mechanical Circulatory Support: A Companion to Braunwald's Heart Disease Ebook
Mechanical Circulatory Support: A Companion to Braunwald's Heart Disease Ebook

Author: Robert L. Kormos

Publisher: Elsevier Health Sciences

Published: 2011-08-30

Total Pages: 367

ISBN-13: 1455727008

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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.

Emerging Technologies for Heart Diseases
Emerging Technologies for Heart Diseases

Author: Udi Nussinovitch

Publisher: Academic Press

Published: 2020-08-19

Total Pages: 556

ISBN-13: 012813707X

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The increasing pace of advances in cardiology throughout the last few decades has fundamentally altered the natural course of heart patients. In the last few years, available therapies have been revolutionized completely by new transcatheter therapeutic approaches, novel ventricular assist devices, and new drugs. Also, molecular biology and genetics have a rapidly growing impact on cardiovascular diseases, enabling the field of regenerative medicine to become increasingly closer to routine clinical implementation. Emerging Technologies for Heart Diseases was conceived to cover the recent extensive literature on current and novel therapeutic options for cardiac patients. The first volume is dedicated to heart failure and valvular disorders, and the second covers myocardial ischemia and arrhythmias. The clinical topic is addressed in several chapters divided according to the therapeutic approach (mechanical or electrical device-based, or cell and gene-based). Each of the 46 chapters focuses on clinically available solutions, new therapies currently under evaluation in clinical trials, promising preclinical technologies, and emerging concepts and innovations that have not yet been tested in a preclinical model. Also, the book discusses future challenges and opportunities for clinical implementation. Lessons learned from abandoned experimental practices are also covered, giving the readers the widest possible perspective of current therapeutic dilemmas. Overall, this textbook was designed for physicians who want to stay up-to-date with current therapies and those of the future, for biomedical companies, and for those who wish to broaden their knowledge of new cardiovascular therapeutic options. - Provides a comprehensive review of the latest therapeutic developments for heart failure, valvular disorders, myocardial ischemia and arrhythmias, and their clinical implications - Written by both specialists in the field and established researchers, it delivers a review of emerging medical technologies and presents insight into their therapeutic promise - Chapters are arranged according to disease pathogeneses and relevance and include coverage of the mechanical, electrophysiological, and biological approaches for the management of patients with heart failure should be replaced with heart failure and valvular disorders

The Biomedical Engineering Handbook
The Biomedical Engineering Handbook

Author: Joseph D. Bronzino

Publisher: CRC Press

Published: 2018-10-03

Total Pages: 5245

ISBN-13: 1439863113

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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.

Molecular, Cellular, and Tissue Engineering
Molecular, Cellular, and Tissue Engineering

Author: Joseph D. Bronzino

Publisher: CRC Press

Published: 2018-10-08

Total Pages: 1830

ISBN-13: 1439825319

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Known as the bible of biomedical engineering, The Biomedical Engineering Handbook, Fourth Edition, sets the standard against which all other references of this nature are measured. As such, it has served as a major resource for both skilled professionals and novices to biomedical engineering. Molecular, Cellular, and Tissue Engineering, the fourth volume of the handbook, presents material from respected scientists with diverse backgrounds in molecular biology, transport phenomena, physiological modeling, tissue engineering, stem cells, drug delivery systems, artificial organs, and personalized medicine. More than three dozen specific topics are examined, including DNA vaccines, biomimetic systems, cardiovascular dynamics, biomaterial scaffolds, cell mechanobiology, synthetic biomaterials, pluripotent stem cells, hematopoietic stem cells, mesenchymal stem cells, nanobiomaterials for tissue engineering, biomedical imaging of engineered tissues, gene therapy, noninvasive targeted protein and peptide drug delivery, cardiac valve prostheses, blood substitutes, artificial skin, molecular diagnostics in personalized medicine, and bioethics.