植入式医疗无线供能系统自动能效恢复机制研究

The power efficiency of wireless power transmission system used in implantable medical device is one of the key issues that limit its application. Researching the power efficiency factor of wireless power transmission system is of great significance for the development of high efficiency and long distance wireless power supply module and realizing the wide application of implantable medical device. This project will study the power efficiency factor of magnetic coupling wireless power transmission system used in implantable device. The power transfer mechanism can be explored by establishing an equivalent model of the transfer process of wireless power transmission system, and the interaction law between transmission parameters and transmission performance can be obtained. On this basis, the project will research and develop a universal automatic power recovery system, so as to solve the core problems of the implantable medical device. This study, firstly, will explore the variation process of system power efficiency under the loose coupling structure and different coupling forms of transmission coil. Secondly, it will research the influencing mechanism of characteristic impedance change and resonant frequency variations on power transfer efficiency and transmission distance. Finally, it will build a new and universal method to achieve automatic power efficiency recovery which can be realized by using CMOS integrated circuit, and will obtain new breakthroughs in terms of circuit size, transmission efficiency, distance and system robustness. The project is of important values in academic circles and practical applications, and provides new theoretical and technical support for the widespread application of implantable medical device.

植入式医疗仪器无线供能系统的传输效率是限制其应用的关键问题之一，研究无线供能系统中的能效影响因子对开发高效率、远距离的无线供能模块实现植入式医疗仪器的广泛应用具有重要意义。本项目对植入式设备中磁耦合式无线供能系统的能效影响因子展开研究。通过建立无线供能系统能量传输过程的等效模型探索其能量传输机理。获得传输参数与传输性能之间的相互影响规律。在此基础之上研究和开发具有普适性的自动能效恢复系统，从而解决植入式医疗仪器应用中的关键核心难题。本研究首先探索在松散耦合结构下，系统能效在传输线圈不同耦合形式下的变化过程。其次研究系统特征阻抗变化、谐振频率漂移对能量传输效率和传输距离的影响机制。最终建立起可利用CMOS集成电路实现并具有通用性的自动能效恢复新方法，并实现电路尺寸、传输效率、距离及系统鲁棒性的新突破。在学术及实际应用方面都有重要的价值，为植入式医疗仪器的广泛应用提供新的理论和技术支撑。

植入式医疗仪器无线供能系统的传输效率是限制其应用的关键问题之一，研究无线供能系统中的能效影响因子对开发高效率、远距离的无线供能模块实现植入式医疗仪器的广泛应用具有重要意义。本项目对植入式设备中磁耦合式无线供能系统的能效影响因子展开研究。通过建立无线供能系统能量传输过程的等效模型探索其能量传输机理。获得传输参数与传输性能之间的相互影响规律。在此基础之上研究和开发具有普适性的自动能效恢复系统，从而解决植入式医疗仪器应用中的关键核心难题。本研究首先探索在松散耦合结构下，系统能效在传输线圈不同耦合形式下的变化过程。其次研究系统特征阻抗变化、谐振频率漂移对能量传输效率和传输距离的影响机制。最终建立起可利用CMOS集成电路实现并具有通用性的自动能效恢复新方法，并实现电路尺寸、传输效率、距离及系统鲁棒性的新突破。在学术及实际应用方面都有重要的价值，为植入式医疗仪器的广泛应用提供新的理论和技术支撑。