Wireless Power Transfer For Miniature Implantable Biomedical Devices
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Wireless Power Transfer For Miniature Implantable Biomedical Devices
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Author : Mingui Sun
language : en
Publisher:
Release Date : 2020
Wireless Power Transfer For Miniature Implantable Biomedical Devices written by Mingui Sun and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020 with Electronic books categories.
Miniature implantable electronic devices play increasing roles in modern medicine. In order to implement these devices successfully, the wireless power transfer (WPT) technology is often utilized because it provides an alternative to the battery as the energy source; reduces the size of implant substantially; allows the implant to be placed in a restricted space within the body; reduces both medical cost and chances of complications; and eliminates repeated surgeries for battery replacements. In this work, we present our recent studies on WPT for miniature implants. First, a new implantable coil with a double helix winding is developed which adapts to tubularly shaped organs within the human body, such as blood vessels and nerves. This coil can be made in the planar form and then wrapped around the tubular organ, greatly simplifying the surgical procedure for device implantation. Second, in order to support a variety of experiments (e.g., drug evaluation) using a rodent animal model, we present a special WPT transceiver system with a relatively large power transmitter and a miniature implantable power receiver. We present a multi-coil design that allows steady power transfer from the floor of an animal cage to the bodies of a group of free-moving laboratory rodents.
Wireless Power Transfer For Implantable Medical Devices
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Author : Xing Li
language : en
Publisher:
Release Date : 2015
Wireless Power Transfer For Implantable Medical Devices written by Xing Li and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015 with Implants, Artificial categories.
Antennas And Wireless Power Transfer Methods For Biomedical Applications
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Author : Yongxin Guo
language : en
Publisher: John Wiley & Sons
Release Date : 2024-03-14
Antennas And Wireless Power Transfer Methods For Biomedical Applications written by Yongxin Guo and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2024-03-14 with Technology & Engineering categories.
Antennas and Wireless Power Transfer Methods for Biomedical Applications Join the cutting edge of biomedical technology with this essential reference The role of wireless communications in biomedical technology is a significant one. Wireless and antenna-driven communication between telemetry components now forms the basis of cardiac pacemakers and defibrillators, cochlear implants, glucose readers, and more. As wireless technology continues to advance and miniaturization progresses, it’s more essential than ever that biomedical research and development incorporate the latest technology. Antennas and Wireless Power Transfer Methods for Biomedical Applications provides a comprehensive introduction to wireless technology and its incorporation into the biomedical field. Beginning with an introduction to recent developments in antenna and wireless technology, it analyzes the major wireless systems currently available and their biomedical applications, actual and potential. The result is an essential guide to technologies that have already improved patient outcomes and increased life expectancies worldwide. Readers will also find: Authored by internationally renowned researchers of wireless technologies Detailed analysis of CP implantable antennas, wearable antennas, near-field wireless power, and more Up to 100 figures that supplement the text Antennas and Wireless Power Transfer Methods for Biomedical Applications is a valuable introduction for biomedical researchers and biomedical engineers, as well as for research and development professionals in the medical device industry.
Wireless Power Transfer Design For Small Implantable Medical Devices
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Author : Jeetkumar Mehta
language : en
Publisher: LAP Lambert Academic Publishing
Release Date : 2015-03-02
Wireless Power Transfer Design For Small Implantable Medical Devices written by Jeetkumar Mehta and has been published by LAP Lambert Academic Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-03-02 with categories.
Last few decades has shown tremendous interest and growth in wireless technology. It was Tesla's dream to trasnfer power wirelessly from one end to other end of the world. Until few decades back it was a topic of interest for few. But this days even major and high tech companies have drawn their attention towards this technology. Apple, Samsung are few of the companies to name who wants to use wireless charging technique for their portable devices. With this work we have tried to explore this wireless technology using magnetic resonance coupling for health care such as implantable devices. The main focus was to start a project to design a receiver that can charge implantable devices such as pacemaker wirelessly. Imagine a patient who doesn't need to undergo heart surgery just to replace batteries for pacemaker, this would turn out to be a boon for humanity. The work has been carried out using software design tool HFSS and also hardware was designed accordingly. Simulation and real time measurements were carried out on pork muscle and compared. Simulation and practical measurements showed close proximity to a greater extent.
Wireless Power Technologies For Implantable Medical Devices
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Author : Hadi Heidari
language : en
Publisher: Springer
Release Date : 2024-05-30
Wireless Power Technologies For Implantable Medical Devices written by Hadi Heidari and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2024-05-30 with Technology & Engineering categories.
This book will addresses the recent advances on range of wireless powering and energy harvesting techniques for different medical devices such as leadless pacemakers, smart stents, implantable brain devices, cardiovascular devices, etc.
Wireless Power Transfer For Scaled Electronic Biomedical Implants
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Author : Paul Thomas Theilmann
language : en
Publisher:
Release Date : 2012
Wireless Power Transfer For Scaled Electronic Biomedical Implants written by Paul Thomas Theilmann and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012 with categories.
Decreasing the physical size of electronic biomedical implants is an important objective in that it increases the number of realizable applications. For example, wireless pacemakers can be on the order of an inch in diameter while retinal and cochlear implants must be scaled to a centimeter to fit in their respective locations within the body. Perhaps the ultimate goal is devices that are no larger than a red blood cell, approximately five microns in diameter. At those dimensions devices reach compatibility with the circulatory system and can be injected into the blood stream. The chief impediment to such aggressive size reduction is the power supply. In this dissertation the use of electromagnetic (EM) radiation to wirelessly power miniature biomedical implants is investigated. Both inductive coupling using time varying magnetic fields and near-infrared (NIR) light collected by photodiodes are identified as viable solutions for transcutaneous power transmission. Minimum device size is limited by power radiation density at the implant and the efficiency with which the device can collect, convert and use this energy. Power density at the implant is restricted by safety regulations and tissue attenuation. Both are studied in this work, the results of which are used to build analytical models for power calculations. The use of ferrite rods in inductive implants can improve power transfer efficiency. In this work an analytical model is derived and supported experimentally which shows that mutual inductance can be improved by as much as a factor of 10 when NiZn ferrite rods are used within the implanted device. This improves efficiency and permits decreased implant size. Efficiently converting time-varying energy to usable DC power is essential for obtaining high implant efficiency. In this work a silicon-on-sapphire (SOS) CMOS rectifier that overcomes the dead-zone at low power characteristics of conventional rectifiers is developed. The design produces the targeted output power of 1 & mu;W with a peak power conversion efficiency of 67% at 100MHz. Furthermore the rectifier achieves greater than 30% efficiency for input power levels as low as -40dBm. A larger rectifier designed with the same topology is used as part of an inductive power transfer system, which is able to illuminate an LED at distances greater than 5cm with input power levels to the primary coil of only 1W. For NIR light power transfer, a specialized photodiode designed using a fully depleted silicon on insulator CMOS process was demonstrated to collect ~35[mu]W of power from a 90mW laser. The insights gained from this work are used to predict the size scaling limits of implants powered using wireless techniques. It is estimated that to obtain 1 & mu;W of power within the implant, inductive supplies will require a secondary coil radius of ~15[mu]m while photodiodes for NIR light power collection will require radii of at least ~40[mu]m.
Wireless Power Transfer For Medical Microsystems
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Author : Tianjia Sun
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-06-12
Wireless Power Transfer For Medical Microsystems written by Tianjia Sun and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-06-12 with Technology & Engineering categories.
This book provides an in-depth introduction to the newest technologies for designing wireless power transfer systems for medical applications. The authors present a systematic classification of the various types of wireless power transfer, with a focus on inductive power coupling. Readers will learn to overcome many challenges faced in the design a wirelessly powered implant, such as power transfer efficiency, power stability, and the size of power antennas and circuits. This book focuses exclusively on medical applications of the technology and a batteryless capsule endoscopy system and other, real wirelessly powered systems are used as examples of the techniques described.
Wireless Power Transmission On Biomedical Applications
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Author : Ting-Tse Lin
language : en
Publisher:
Release Date : 2020
Wireless Power Transmission On Biomedical Applications written by Ting-Tse Lin and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020 with Electronic books categories.
Wireless power transmission (WPT) can provide an alternative for wireless power in implantable medical devices (IMDs). The WPT in implantable medical devices will involve many emerging biomedical topics, such as implantable pacemakers, optogenetic devices, and bio-impedance sensors. To this end, this chapter comprehensively reviews the recent WPT studies for those mentioned above emerging biomedical applications. The specific key components are carried out for those applications. Besides, the operation principle and system design are presented. In conclusion, this chapter,Äôs significance can help evolve reliable implantable device development in the future.
2019 Ieee Asia Pacific Microwave Conference Apmc
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Author : IEEE Staff
language : en
Publisher:
Release Date : 2019-12-10
2019 Ieee Asia Pacific Microwave Conference Apmc written by IEEE Staff and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-12-10 with categories.
The conference will cover the entire scope of microwave and millimeter wave engineering, including RF microwave THz, antennas & propagation and EMC EMI
Wireless Power Transmitter For Ultra Low Power Implantable Biomedical Devices
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Author : Alexandre Casadevall Nierga
language : en
Publisher:
Release Date : 2013
Wireless Power Transmitter For Ultra Low Power Implantable Biomedical Devices written by Alexandre Casadevall Nierga and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013 with categories.
[ANGLES] Here is presented a modest collaboration in a research project lead by Medical Devices Lab of NYU-Poly, whose goal is to design and build an implant to detect and block epileptic attacks. According to this, this developed work performs several essential parts to provide power at the implantable device, facing two main challenges: miniaturize the implantable device and maximize the efficiency of the wireless link. Following work starts analyzing what is the framework which makes the wireless link capable to transmit power from outside to inside the tissue. Once wireless link specs are determined, it is proposed to use a commercial chip to invert the DC voltage from a battery to AC signal, which is required for wireless transmitting. Finally, it goes deeper inside the brain IC designing a voltage regulator and an essential circuit to start up the system.