Adaptive Transcutaneous Power Transfer to Implantable Devices: A State of the Art Review.
Adaptive Transcutaneous Power Transfer to Implantable Devices: A State of the Art Review.
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DOI：
10.3390/s16030393
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发表时间：
2016-03-18
期刊：
影响因子：
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通讯作者：
Sejdić E
中科院分区：
文献类型：
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作者：
Bocan KN;Sejdić E
无线能量传输是一个广泛的研究领域，最近已成为适用于植入式医疗设备。通过无线经皮能量传输，植入器械的无线供电和通信成为可能。然而，由于环境的变化，设计无线经皮系统是复杂的。这篇综述的重点是在无线经皮系统中感知和适应环境变化的策略。自适应系统提供了在不可预测性（与预期参数的变化）和可变性（随时间变化）的情况下保持性能的能力。自适应（或可调）系统中的当前策略包括感测相关度量以评估系统在其环境中的功能，以及通过使用可调组件根据感测值来调整控制参数。将自适应设计应用于植入式器械的一些挑战是所有植入式器械共同面临的挑战，包括植入物的尺寸和功率减小、功率传输效率以及与组织中能量吸收相关的安全性。与自适应特别相关的挑战包括选择相关和可访问的参数来感测和调整，最大限度地减少调谐时间和控制复杂性，利用来自植入设备的反馈以及在发射器和接收器处协调自适应。
Wireless energy transfer is a broad research area that has recently become applicable to implantable medical devices. Wireless powering of and communication with implanted devices is possible through wireless transcutaneous energy transfer. However, designing wireless transcutaneous systems is complicated due to the variability of the environment. The focus of this review is on strategies to sense and adapt to environmental variations in wireless transcutaneous systems. Adaptive systems provide the ability to maintain performance in the face of both unpredictability (variation from expected parameters) and variability (changes over time). Current strategies in adaptive (or tunable) systems include sensing relevant metrics to evaluate the function of the system in its environment and adjusting control parameters according to sensed values through the use of tunable components. Some challenges of applying adaptive designs to implantable devices are challenges common to all implantable devices, including size and power reduction on the implant, efficiency of power transfer and safety related to energy absorption in tissue. Challenges specifically associated with adaptation include choosing relevant and accessible parameters to sense and adjust, minimizing the tuning time and complexity of control, utilizing feedback from the implanted device and coordinating adaptation at the transmitter and receiver.