MINIATURIZED CAPACITOR FOR IMPLANTABLE DEFIBRILLATOR

用于植入式除颤器的小型化电容器

• 批准号: 6298667
• 负责人: BADAWI M DWEIK
• 金额: $ 10万
• 依托单位: GINER, INC.
• 依托单位国家: 美国
• 财政年份: 2001
• 资助国家: 美国
• 起止时间: 2001-02-01 至 2001-11-30
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/6298667
• 关键词: artificial membranes; bioengineering /biomedical engineering; biomedical equipment development; dielectric property; electrical property; electrochemistry; electrolytes; implant; implantable defibrillators; medical implant science; microelectrodes; miniature biomedical equipment; oxides; polymers; ruthenium; sulfonate; tantalum

DESCRIPTION (Unedited Applicant's Abstract): The goal of this project is to develop an advanced, miniaturized, all solid hybrid capacitor type (Electrochemical-Electrolytic) for the next generation of implantable defibrillators. The capacitor consists of a modified porous tantalum oxide structure of a high-voltage electrolytic type anode, solid ionomer electrolyte and electrochemical redox pseudocapacitance Ruthenium oxide type cathode. By combining the advantages of the electrochemical capacitor and the electrolytic capacitor, the proposed design will yield a high voltage, small volume and low Equivalent Series Resistance (ESR) device with simplified packaging process. Besides the potential for volume and/or mass reductions, which will significantly contribute to the clinically important efforts of reducing the Size of the present implantable defibrillator, other inherent characteristics of hybrid capacitor could be critical drivers for selection of this technology for implantable defibrillators. High reliability and safety have also significant impact on this technology. Phase I will identify methods of improving tantalum anode structure, solid ionomer electrolyte, and catalyst particulate of the cathode to increase the energy density and reduce the size the capacitor resulting in more efficient charge extraction and a more rapid rate of capacitor discharge. Packaging strategies will be developed and identified. A unit capacitor will be fabricated and operated to demonstrate concept feasibility. PROPOSED COMMERCIAL APPLICATION: The commercial potential of this application is significant, there are critical need for reduced size, high energy density capacitor for the implantable defibrillators, in addition this technologies are needed to open up a wide range for making other implantable support devices. i.e., for nerve and muscle stimulation, possible, thus helping to increase worldwide the market share of the US companies in these device segment.

描述（未经编辑的申请人摘要）：本项目的目标是 开发一种先进的、小型化的、全固态混合电容器类型， （电化学-电解）用于下一代植入式 冰箱。该电容器由改性多孔钽氧化物 高电压电解型阳极结构、固体离聚物电解质 和电化学氧化还原赝电容氧化钌型阴极。 通过结合电化学电容器和电容器的优点， 电解电容器，建议的设计将产生高电压，小 低等效串联电阻（ESR）器件， 包装过程。除了体积和/或质量减少的潜力之外， 这将大大有助于临床上重要的努力， 减小本发明的可植入除颤器的尺寸、其它固有的 混合电容器的特性可能是选择 这项技术用于植入式呼吸机。高可靠性和安全性 对这项技术也有很大的影响。 第一阶段将确定改进钽阳极结构的方法， 离聚物电解质和阴极的催化剂颗粒，以增加 能量密度和减小电容器的尺寸，从而提高效率 电荷提取和更快的电容器放电速率。包装 将制定和确定战略。单位电容器将 制造和操作，以证明概念的可行性。 拟定商业应用： 这种应用的商业潜力是巨大的，迫切需要 此外，用于植入式除颤器的尺寸减小的高能量密度电容器 这项技术需要开辟一个广泛的范围，使其他植入式 支持设备。也就是说，神经和肌肉刺激，可能，从而有助于增加 在全球范围内，美国公司在这些设备领域的市场份额。

项目成果

Highly sensitive detection of urinary cadmium to assess personal exposure.

• DOI: 10.1016/j.aca.2013.02.034
• 发表时间: 2013-04-22
• 期刊: Analytica chimica acta
• 影响因子: 6.2
• 作者: Argun AA;Banks AM;Merlen G;Tempelman LA;Becker MF;Schuelke T;Dweik BM
• 通讯作者: Dweik BM