CAREER: Advanced Bioelectromagnetics for Wireless Biomedical Devices

职业：无线生物医学设备的先进生物电磁学

• 批准号: 0091599
• 负责人: Gianluca Lazzi
• 金额: $ 37.5万
• 依托单位: North Carolina State University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2001
• 资助国家: 美国
• 起止时间: 2001-03-01 至 2007-02-28
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0091599&HistoricalAwards=false
• 关键词: CAREER; Advanced; Bioelectromagnetics; Wireless; Biomedical

With advances in wireless communications, medicine, and biocompatible electronics, novel ideas toseamlessly integrate information technology and bioelectromagnetics toward the development of wirelessimplantable biomedical devices need to be explored. Bioelectromagnetic phenomena are intrinsic to thevital function of all living tissues, and a thorough understanding of both the internal electromagneticfields and the coupling of external electromagnetic fields to the human body represent a challenge thatwill significantly contribute to the development of new biomedical devices for the 21st century.The objective of this proposal is to bring about fundamental advances toward the development of novelwireless transcutaneous electromagnetic devices for biomedical applications by integrating in the sameframework macro- and micro-scale phenomena. The study will start from considering the development ofsuitable antenna systems for power and data telemetry between units internal and external to the humanbody, to reach the level of understanding how induced and spontaneous electrical signals can bemeaningfully used in the development of biomedical devices. Macro-scale interactions of exogenous andendogenous electromagnetic fields in the human body will be interfaced with microbioelectromagneticmodeling, with the focus on characterizing exposure and excited electrical activity at the cellular andmolecular level. Such studies will help in understanding and elucidating the mechanisms of interaction ofelectromagnetic fields with biological tissues, with potential applications to neural responses toelectromagnetic excitations.Full-wave Finite-Difference Time-Domain based numerical methods will be used for this completemodeling effort, with integration of quasi-static methods for the low frequency modeling of neuralresponses. Experimental systems to test the performance of the developed implantable wireless links willbe fabricated, while computational models of the neural responses will be validated through collaborationwith researchers at Johns Hopkins University.The impact of the proposed research activity will extend from the development of a epiretinal prosthesisto restore sight in over 10,000,000 visually impaired to the development of wireless devices for sensingthe daily evolution of cancer. Collaborations with the Johns Hopkins Wilmer Eye Institute and biomedicalcompanies are already in place to provide the necessary medical help and expertise.This project will offer a unique research environment with strong interdisciplinary and multi-institutionalcollaborations that will provide graduate and undergraduate students an unprecedented exposure toinnovative technologies for the 21st century. New educational approaches aimed to present a broadersystem-oriented view of the role of electromagnetics and bioelectromagnetics in today's and tomorrow'stechnology will be pursued to expose students early in their career to a new and timely perspective ofcareers in engineering electromagnetics and bioelectromagnetics.

随着无线通信、医学和生物相容性电子学的发展，需要探索将信息技术和生物电磁学无缝集成以开发无线可植入生物医学设备的新想法。生物电磁现象是所有活组织的生命功能所固有的，以及对内部电磁场和外部电磁场与人体的耦合的透彻理解是一个挑战，将大大有助于21世纪新生物医学设备的发展。本提案的目标是为新型无线经皮电磁设备的生物医学应用，通过整合在同一框架的宏观和微观尺度的现象。这项研究将从考虑开发合适的天线系统开始，用于人体内外单元之间的功率和数据遥测，以达到理解感应和自发电信号如何能够充分用于生物医学设备开发的水平。人体内外源性和内源性电磁场的宏观尺度相互作用将与微生物电磁建模相结合，重点是在细胞和分子水平上表征暴露和激发的电活动。这些研究将有助于理解和阐明电磁场与生物组织相互作用的机制，并有可能应用于神经对电磁激励的反应。基于全波时域差分的数值方法将用于这一完整的建模工作，与准静态方法的集成用于神经响应的低频建模。将制造实验系统来测试所开发的植入式无线链路的性能，而神经反应的计算模型将通过与约翰霍普金斯大学的研究人员合作来验证。拟议的研究活动的影响将从开发视网膜前假体扩展到恢复超过10，000人的视力，000名视力受损的人开发了无线设备来感知癌症的日常演变。与约翰霍普金斯威尔默眼科研究所和生物医学公司的合作已经到位，以提供必要的医疗帮助和专业知识。该项目将提供一个独特的研究环境，强大的跨学科和多机构的合作，将为研究生和本科生提供前所未有的接触到创新技术的21世纪世纪。新的教育方法，旨在提出一个更广泛的电磁学和生物电磁学在今天和明天的技术中的作用系统为导向的观点，将追求学生在他们的职业生涯早期暴露在工程电磁学和生物电磁学的职业生涯的新的和及时的观点。