Development of a Novel Ultra-low Power Implantable Telemetry System PDF Download
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Author: Fadel M. Mahfouz
Publisher:
ISBN:
Category : Biotelemetry
Languages : en
Pages : 190
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Book Description
Author: Fadel M. Mahfouz
Publisher:
ISBN:
Category : Biotelemetry
Languages : en
Pages : 190
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Book Description
Author: Jose L. Bohorquez
Publisher:
ISBN:
Category :
Languages : en
Pages : 225
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Book Description
In recent years, trends in the medical industry have created a growing demand for a variety of implantable medical devices. At the same time, advances in integrated circuits techniques, particularly in CMOS, have opened possibilities for advanced implantable systems that are very small and consume minimal energy. Minimizing the volume of medical implants is important as it allows for less invasive procedures and greater comfort to patients. Minimizing energy consumption is imperative as batteries must last at least a decade without replacement. Two primary functions that consume energy in medical implants are sensor interfaces that collect information from biomedical signals, and radios that allow the implant to communicate with a base-station outside of the body. The general focus of this work was the development of circuits and systems that minimize the size and energy required to carry out these two functions. The first part of this work focuses on laying down the theoretical framework for an ultra-low power radio, including advances to the literature in the area of super-regeneration. The second part includes the design of a transceiver optimized for medical implants, and its implementation in a CMOS process. The final part describes the design of a sensor interface that leverages novel analog and digital techniques to reduce the system's size and improve its functionality. This final part was developed in conjunction with Marcus Yip.
Author: Ondrej Krejcar
Publisher: BoD – Books on Demand
ISBN: 9533074159
Category : Computers
Languages : en
Pages : 484
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Book Description
Telemetry is based on knowledge of various disciplines like Electronics, Measurement, Control and Communication along with their combination. This fact leads to a need of studying and understanding of these principles before the usage of Telemetry on selected problem solving. Spending time is however many times returned in form of obtained data or knowledge which telemetry system can provide. Usage of telemetry can be found in many areas from military through biomedical to real medical applications. Modern way to create a wireless sensors remotely connected to central system with artificial intelligence provide many new, sometimes unusual ways to get a knowledge about remote objects behaviour. This book is intended to present some new up to date accesses to telemetry problems solving by use of new sensors conceptions, new wireless transfer or communication techniques, data collection or processing techniques as well as several real use case scenarios describing model examples. Most of book chapters deals with many real cases of telemetry issues which can be used as a cookbooks for your own telemetry related problems.
Author: Mayukh Bhattacharyya
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
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Author: National Aeronautics and Space Administration (NASA)
Publisher: Createspace Independent Publishing Platform
ISBN: 9781721016204
Category :
Languages : en
Pages : 56
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Book Description
Most biotelemetry applications deal with the moderated data rates of biological signals. Few people have studied the problem of transcutaneous data transmission at the rates required by NASA's Life Sciences-Advanced BioTelemetry System (LS-ABTS). Implanted telemetry eliminate the problems associated with wire breaking the skin, and permits experiments with awake and unrestrained subjects. Our goal is to build a low-power 174-216MHz Radio Frequency (RF) transmitter suitable for short range biosensor and implantable use. The BioLink Implantable Telemetry System (BITS) is composed of three major units: an Analog Data Module (ADM), a Telemetry Transmitter Module (TTM), and a Command Receiver Module (CRM). BioLink incorporates novel low-power techniques to implement a monolithic digital RF transmitter operating at 100kbps, using quadrature phase shift keying (QPSK) modulation in the 174-216MHz ISM band. As the ADM will be specific for each application, we focused on solving the problems associated with a monolithic implementation of the TTM and CRM, and this is the emphasis of this report. A system architecture based on a Frequency-Locked Loop (FLL) Frequency Synthesizer is presented, and a novel differential frequency that eliminates the need for a frequency divider is also shown. A self sizing phase modulation scheme suitable for low power implementation was also developed. A full system-level simulation of the FLL was performed and loop filter parameters were determined. The implantable antenna has been designed, simulated and constructed. An implant package compatible with the ABTS requirements is also being proposed. Extensive work performed at 200MHz in 0.5um complementary metal oxide semiconductors (CMOS) showed the feasibility of integrating the RF transmitter circuits in a single chip. The Hajimiri phase noise model was used to optimize the Voltage Controlled Oscillator (VCO) for minimum power consumption. Two test chips were fabricated in a 0.5pm, 3V CMOS proce
Author: Rahul Sarpeshkar
Publisher: Cambridge University Press
ISBN: 1139485237
Category : Technology & Engineering
Languages : en
Pages : 909
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Book Description
This book provides, for the first time, a broad and deep treatment of the fields of both ultra low power electronics and bioelectronics. It discusses fundamental principles and circuits for ultra low power electronic design and their applications in biomedical systems. It also discusses how ultra energy efficient cellular and neural systems in biology can inspire revolutionary low power architectures in mixed-signal and RF electronics. The book presents a unique, unifying view of ultra low power analog and digital electronics and emphasizes the use of the ultra energy efficient subthreshold regime of transistor operation in both. Chapters on batteries, energy harvesting, and the future of energy provide an understanding of fundamental relationships between energy use and energy generation at small scales and at large scales. A wealth of insights and examples from brain implants, cochlear implants, bio-molecular sensing, cardiac devices, and bio-inspired systems make the book useful and engaging for students and practicing engineers.
Author: Prachi Santosh Sonalkar
Publisher:
ISBN:
Category : Implants, Artificial
Languages : en
Pages : 258
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Book Description
Implantable medical devices offer several fascinating possibilities for improving human health. Coupled with advancements in the miniaturization of electronic systems, the array of implantable medical devices will continue to expand. Furthermore, if instrumentation based implants are interfaced to a communication sub-system, the potential exists for wireless microcontroller software updates and real-time data acquisition from integrated sensors which could relay patient health information or implant mechanical conditions to an external system. This thesis focuses on development of such a platform. The current system incorporates a Radio Frequency (RF) telemetry system integrated to an embedded microcontroller with multi-channel data acquisition capabilities. This system employs a XE1201A (Xemics Inc, Switzerland) transceiver chipset providing a bi-directional 405 MHz RF communications link. This transceiver is integrated to an ultra-low power MSP430F149 (Texas Instruments, Dallas TX) microcontroller with 12-bit analog to digital capabilities. In addition, a similar external system is interfaced to a PC for complete control and real-time data acquisition is developed, a custom developed script language is implemented to input required commands for collection of desired data from a particular sensor. The software code and protocol to establish bi-directional communication was developed in ANSI C which is implemented on the microcontroller and the PC interface was developed using LabVIEW (National Instruments, Austin TX). In addition, all ASICs are available in die form to allow for ultra-miniaturization. The system is in the process of being evaluated in a spinal disc implant equipped with strain and temperature sensors. Future work will involve manufacturing the entire system in an ultra-compact package through the use of flip-chip technology.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 48
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Book Description
Author: Guang-Zhong Yang
Publisher: Springer
ISBN: 1447163745
Category : Computers
Languages : en
Pages : 572
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Book Description
The last decade has witnessed a rapid surge of interest in new sensing and monitoring devices for wellbeing and healthcare. One key development in this area is wireless, wearable and implantable in vivo monitoring and intervention. A myriad of platforms are now available from both academic institutions and commercial organisations. They permit the management of patients with both acute and chronic symptoms, including diabetes, cardiovascular diseases, treatment of epilepsy and other debilitating neurological disorders. Despite extensive developments in sensing technologies, there are significant research issues related to system integration, sensor miniaturisation, low-power sensor interface, wireless telemetry and signal processing. In the 2nd edition of this popular and authoritative reference on Body Sensor Networks (BSN), major topics related to the latest technological developments and potential clinical applications are discussed, with contents covering. Biosensor Design, Interfacing and Nanotechnology Wireless Communication and Network Topologies Communication Protocols and Standards Energy Harvesting and Power Delivery Ultra-low Power Bio-inspired Processing Multi-sensor Fusion and Context Aware Sensing Autonomic Sensing Wearable, Ingestible Sensor Integration and Exemplar Applications System Integration and Wireless Sensor Microsystems The book also provides a comprehensive review of the current wireless sensor development platforms and a step-by-step guide to developing your own BSN applications through the use of the BSN development kit.
Author: Stanford University. Integrated Circuits Laboratory
Publisher:
ISBN:
Category :
Languages : en
Pages : 78
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Book Description
