Medical Implant Receiver System
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Medical Implant Receiver System
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Author : Mark Stevens
language : en
Publisher:
Release Date : 2012
Medical Implant Receiver System written by Mark Stevens and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012 with Low voltage systems categories.
The medical industry has benefited greatly by electronic integration resulting in the explosive growth of active medical implants. These devices often treat and monitor chronic health conditions and require very minimal power usage. A key part of these medical implants is an ultra-low power two way wireless communication system. This enables both control of the implant as well as relay of information collected. This research has focused on a high performance receiver for medical implant applications. One commonly quoted specification to compare receivers is energy per bit required. This metric is useful, but incomplete in that it ignores Sensitivity level, bit error rate, and immunity to interferers. In this study exploration of receiver architectures and convergence upon a comprehensive solution is done. This analysis is used to design and build a system for validation. The Direct Conversion Receiver architecture implemented for the MICS standard in 0.18 m CMOS process consumes approximately 2 mW is competitive with published research.
Ultrasound Energy And Data Transfer For Medical Implants
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Author : Francesco Mazzilli
language : en
Publisher: Springer Nature
Release Date : 2020-09-02
Ultrasound Energy And Data Transfer For Medical Implants written by Francesco Mazzilli and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-09-02 with Technology & Engineering categories.
This book presents new systems and circuits for implantable biomedical applications, using a non-conventional way to transmit energy and data via ultrasound. The authors discuses the main constrains (e.g. implant size, battery recharge time, data rate, accuracy of the acoustic models) from the definition of the ultrasound system specification to the in-vitro validation.The system described meets the safety requirements for ultrasound exposure limits in diagnostic ultrasound applications, according to FDA regulations. Readers will see how the novel design of power management architecture will meet the constraints set by FDA regulations for maximum energy exposure in the human body. Coverage also includes the choice of the acoustic transducer, driven by optimum positioning and size of the implanted medical device. Throughout the book, links between physics, electronics and medical aspects are covered to give a complete view of the ultrasound system described. Provides a complete, system-level perspective on the use of ultrasound as energy source for medical implants; Discusses system design concerns regarding wireless power transmission and wireless data communication, particularly for a system in which both are performed on the same channel/frequency; Describes an experimental study on implantable battery powered biomedical systems; Presents a fully-integrated, implantable system and hermetically sealed packaging.
Design And Characterization Of Wireless Implant Systems With Ultrasonic Power And Data Links
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Author : Ting Chia Chang
language : en
Publisher:
Release Date : 2019
Design And Characterization Of Wireless Implant Systems With Ultrasonic Power And Data Links written by Ting Chia Chang and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019 with categories.
Implantable medical devices (IMDs) provide precise physiological monitoring and effective treatment by directly interfacing with specific organs and pathways. Current implants generally use large batteries for power and long wires to reach locations of interest, which makes them bulky and invasive; as a result, they are typically reserved for last resort treatments only. Miniaturization of IMDs down to millimeter-sized or smaller can mitigate undesirable immune response and operate in deep tissue for more targeted treatments. In addition, many of the medical applications of these implant systems, like neuromodulation can benefit from wireless data communication and networking capability for adaptive therapy and further improve treatment efficacy in a closed-loop fashion. To address these challenges and enable next-generation miniaturized wireless implant systems, we utilize ultrasound (US) for wireless power and data communication with a network of implantable devices. US has several advantages for powering and communication to miniaturized IMDs because it offers superior transduction efficiency and energy focusing due to its millimeter (mm) wavelength, low tissue attenuation through the body, and high safety limit which allows more power to be delivered for medical applications demanding more power. To provide design insights and optimize the performance of wireless implant systems using US, we present an analytical framework for optimizing end-to-end US link efficiency from transmitters to receivers to enable IMDs scaled down to mm or sub-mm dimensions. Key design objectives and trade-offs are considered for various parameters including the operating frequency, the transmission depth, the size of the transmitter, the impedance and the aperture efficiency of the miniaturized receiver, and the interface between the receiver and the power recovery chain on the implant. The design considerations and modeling for miniaturized US receivers using piezoelectric materials are then examined to obtain efficient scaled receivers. With the understanding of optimizing link performance, a mm-sized proof-of-concept implant for simultaneous US wireless power and bi-directional communication is designed and discussed. The fully packaged implant measures just 2.6 x 6.5 x 1.8 mm3, and it is the first such mm-sized implant that is able to operate with more than 6 cm in tissue. Finally, the system functionality and the networking aspect of the wireless implant systems are demonstrated at a large depth of more than 6 cm in tissue or tissue phantom with the customized US transmitter array.
Programming Cochlear Implants
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Author : Jace Wolfe
language : en
Publisher: Plural Publishing
Release Date : 2014-10-31
Programming Cochlear Implants written by Jace Wolfe and has been published by Plural Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-10-31 with Medical categories.
Implantable Electronic Medical Devices
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Author : Dennis Fitzpatrick
language : en
Publisher: Elsevier
Release Date : 2014-11-05
Implantable Electronic Medical Devices written by Dennis Fitzpatrick and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-11-05 with Technology & Engineering categories.
Implantable Electronic Medical Devices provides a thorough review of the application of implantable devices, illustrating the techniques currently being used together with overviews of the latest commercially available medical devices. This book provides an overview of the design of medical devices and is a reference on existing medical devices. The book groups devices with similar functionality into distinct chapters, looking at the latest design ideas and techniques in each area, including retinal implants, glucose biosensors, cochlear implants, pacemakers, electrical stimulation therapy devices, and much more. Implantable Electronic Medical Devices equips the reader with essential background knowledge on the application of existing medical devices as well as providing an introduction to the latest techniques being used. A catalogue of existing implantable electronic medical devices Up-to-date information on the design of implantable electronic medical devices Background information and reviews on the application and design of up-to-date implantable electronic medical devices
Implantable Hearing Devices
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Author : Chris de Souza
language : en
Publisher: Plural Publishing
Release Date : 2017-05-23
Implantable Hearing Devices written by Chris de Souza and has been published by Plural Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-05-23 with Medical categories.
Implantable Hearing Devices is written for ear, nose, and throat surgeons in training who must know about implantable hearing devices as they advance in otologic surgery. It is also a resource for otologic surgeons desiring to know more about the devices available. The technology is evolving rapidly along with the criteria for candidacy, and this text covers the entire spectrum of implantable hearing devices that are available, including but not limited to cochlear implants. Complex issues are presented in an easy to understand format by a host of internationally well-respected authors. Many practitioners have to refer to multiple resources for answers to their questions because the discipline is changing so rapidly. Implantable Hearing Devices is a clear, concise, but comprehensive book that offers answers to the universal problems that otologic surgeons face. Disclaimer: Please note that ancillary content (such as documents, audio, and video, etc.) may not be included as published in the original print version of this book.
Radio Receivers For Systems Of Fixed And Mobile Communications
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Author : Vasiliy V. Logvinov
language : en
Publisher: Springer Nature
Release Date : 2022-05-13
Radio Receivers For Systems Of Fixed And Mobile Communications written by Vasiliy V. Logvinov and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-05-13 with Technology & Engineering categories.
The textbook acquaints the reader with the architecture of receivers of analog and digital radio systems, helps to study the stages of designing a modern radio receiver and reveals the reasons and methods for its effective operation in networks for various purposes. Particular attention is paid to the methods of generating and processing signals in the receivers of digital systems with multiple access, which make it possible to provide data transfer rates close to the maximum possible (according to Shannon). As a textbook for students studying methods of optimal signal reception, the book will also be useful to specialists in the field of telecommunications involved in the development of radio receivers. The book shows how the development of theoretical, circuitry and integrated technologies led to the active introduction of algorithmic methods for signal processing changed both the design of receivers and the methods of forming the information flow in free space (MIMO, beamforming). The creation of a global 5G network based on heterogeneous networks puts forward new requirements for the architecture of receivers, which are determined by the requirements to achieve high data rates, low time delays or use in networks with coordinated multipoint transmission and reception (CoMP). To consolidate the knowledge gained, the book includes a complete set of materials for online classes, including questions and answers, a guide to solving problems for each chapter, and computer modeling units of receivers in the MicroCAP environment, based on preliminary calculations.
Cochlear Implants
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Author : Jace Wolfe
language : en
Publisher: Plural Publishing
Release Date : 2018-12-14
Cochlear Implants written by Jace Wolfe and has been published by Plural Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-12-14 with Medical categories.
Cochlear Implants: Audiologic Management and Considerations for Implantable Hearing Devices provides comprehensive coverage of the audiological principles and practices pertaining to cochlear implants and other implantable hearing technologies. This is the first and only book that is written specifically for audiologists and that exhaustively addresses the details involved with the assessment and management of cochlear implant technology. Additionally, this book provides a through overview of hybrid cochlear implants, implantable bone conduction hearing technology, middle ear implantable devices, and auditory brainstem implants. Key Features: Each chapter features an abundance of figures supporting the clinical practices and principles discussed in the text and enabling students and clinicians to more easily understand and apply the material to clinical practice.The information is evidence based and whenever possible is supported by up-to-date peer-reviewed research.Provides comprehensive coverage of complex information and sophisticated technology in a manner that is student-friendly and in an easily understandable narrative form.Concepts covered in the narrative text are presented clearly and then reinforced through additional learning aids including case studies and video examples.Full color design with numerous figures and illustrations. Cochlear Implants is the perfect choice for graduate-level courses covering implantable hearing technologies because the book provides a widespread yet intricate description of every implantable hearing technology available for clinical use today. This textbook is an invaluable resource and reference for both audiology graduate students and clinical audiologists who work with implantable hearing devices. Furthermore, this book supplements the evidence-based clinical information provided for a variety of implantable hearing devices with clinical videos demonstrating basic management procedures and practices.
Cochlear Implants
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Author : Roger F. Gray
language : en
Publisher: Taylor & Francis
Release Date : 1985
Cochlear Implants written by Roger F. Gray and has been published by Taylor & Francis this book supported file pdf, txt, epub, kindle and other format this book has been release on 1985 with Cochlear implants categories.
Integrated Wirelessly Powered Solutions For Medical Implants And Internet Of Things
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Author : Hamed Rahmani
language : en
Publisher:
Release Date : 2020
Integrated Wirelessly Powered Solutions For Medical Implants And Internet Of Things written by Hamed Rahmani and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020 with categories.
Wireless system-on-chip devices are emerging as the most promising solution for future wireless sensing with applications in medical implants and the Internet of Things (IoT). On one side, energy extraction from ambient sources facilitates permanent powering techniques required for long-term operation. On the other side, the high integration capability of commercial CMOS technology opens the opportunity for high-resolution sensing and data communication with a compact form-factor. In this dissertation, My research builds a foundation for joint wireless power delivery, low-power sensing, and wireless communication in such highly integrated systems yielding a paradigm shift in the design and development of future ubiquitous low-power wireless systems. This thesis presents the design, implementation, and experimental evaluation of integrated wirelessly powered solutions for next-generation medical implants and IoT devices. To this end, First, I leverage the high integration capabilities of CMOS technology and try to develop integrated systems for power delivery, environmental sensing, and wireless data communication. The small power budget available for an integrated solution severely limits its functionality and operating range. Hence, individual wirelessly powered solutions may not be able to satisfy the application requirements of future medical implants and IoT devices. To address this problem, I leverage another important feature of a commercial CMOS technology that is the low fabrication cost. I show how complex tasks such as localization and be realized using a swarm of millimeter-sized integrated chips. In this dissertation, I introduce the challenges of wireless power transmission to fully integrated systems on CMOS technology and present two types of RF power receiver systems for near-field and far-field electromagnetic region. I propose a comprehensive optimization algorithm for maximizing the power transfer efficiency and choosing the optimum frequency for wireless power transmission. Next, I present the world's most power-efficient wireless transceiver with an integrated wireless power delivery system. I demonstrate a fully on-chip operation and utilize two sets of loop and dipole antenna for wireless power delivery and data communication, respectively. I will explain how we achieve a 150 Mbps uplink communication data rate under a stringent power budget by introducing a power management technique. I will then, discuss the opportunities offered by this platform to enhance next-generation IoT and medical devices. In particular, we tackle the limited operating range by forming a synchronized distributed sensor network built from fully on-chip integrated systems. Also, we address the power scarcity challenges in biomedical/environmental sensing by adopting extensive low-power design techniques. This interdisciplinary research direction incorporates advancements such as applied physics, machine learning, healthcare, and wireless networking.