温度与功率双闭环控制的经皮能量传输

发布时间：2018-01-15 17:20

本文关键词：温度与功率双闭环控制的经皮能量传输　出处：《清华大学学报(自然科学版)》2014年09期 　论文类型：期刊论文

【摘要】：经皮能量传输(TET)在近年临床实践中暴露出严重的热伤害风险,引发了多例病人烫伤及大规模的设备召回。针对该问题,该文将体外发射功率调整与体内充电功率调整相结合,提出外环温度控制、内环功率控制的双闭环能量传输方案。根据植入线圈的接收功率调整体外发射功率,确保植入设备接收的能量恰好满足后端电池充电所需,维持稳定能量传输并避免额外功耗及发热;根据植入设备温度调整体内电池充电功率,改变设备的功率需求及发热量,避免热伤害。通过离体、活体实验,验证控制方案的有效性。结果表明,双闭环系统在保障温度安全的同时实现了快速的能量传输,为相关植入式医疗设备提供了一套安全有效的能源解决方案。
[Abstract]:Percutaneous energy transfer test (TET) has exposed severe thermal injury risk in recent years, which has caused scalds and large-scale equipment recalls in many patients. In this paper, the external transmission power is combined with the in-vivo charge power adjustment, and the external loop temperature control and the inner loop power control are proposed, and the external transmission power is adjusted according to the receiving power of the implanted coil. Ensure that the energy received by the implanted device exactly meets the needs of the backend battery charging, maintaining stable energy transmission and avoiding additional power consumption and heat generation; The battery charging power is adjusted according to the temperature of the implanted device to change the power requirement and calorific value of the device to avoid thermal injury. The effectiveness of the control scheme is verified by in vitro and in vivo experiments. The results show that the proposed control scheme is effective. The double closed loop system not only guarantees the temperature safety but also realizes the fast energy transmission. It provides a set of safe and effective energy solution for the related implanted medical equipment.
【作者单位】：清华大学航天航空学院;
【基金】：国家科技支撑计划资助项目(2011BAI12B07) 国家自然基金资助项目(51125028)
【分类号】：TM724
【正文快照】： 2004年4月,第一款可充电式脊髓刺激器(spi-nal cord stimulator,SCS)面市[1];2009年,第一款可充电式大脑深部刺激器(deep brain stimulator,DBS)通过美国食品药品监督管理局(FDA)认证进入市场[2]。基于电磁耦合的无线充电技术解决了植入式医疗设备的能源瓶颈,能延长仪器使用寿

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