Implantable power generation system utilizing muscle contractions excited by electrical stimulation
Implantable power generation system utilizing muscle contractions excited by electrical stimulation
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DOI：
10.1177/0954411916638889
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发表时间：
2016-03
期刊：
影响因子：
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通讯作者：
Genta Sahara;W. Hijikata;Kota Tomioka;T. Shinshi
中科院分区：
文献类型：
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作者：
Genta Sahara;W. Hijikata;Kota Tomioka;T. Shinshi
提出了一种由肌肉收缩驱动的植入式发电系统，用于为主动植入式医疗设备供电，如起搏器和神经刺激器。在该系统中，根据主动植入式医疗设备对电力的需求，通过电刺激有意收缩肌肉。所提出的系统包括一个小型电磁感应发电机、带有刺激电路的电极和一个将肌肉收缩的直线运动转换为磁电机转子的旋转运动的传输装置，产生电能。在利用长28毫米、重1.3克的蟾蜍腓肠肌的离体实验中，样机产生的电能超过了电刺激所消耗的能量，净功率为111 μ W。结果表明，所提出的植入式发电系统具有替代有源植入式医疗设备的植入式电池的潜力。
An implantable power generation system driven by muscle contractions for supplying power to active implantable medical devices, such as pacemakers and neurostimulators, is proposed. In this system, a muscle is intentionally contracted by an electrical stimulation in accordance with the demands of the active implantable medical device for electrical power. The proposed system, which comprises a small electromagnetic induction generator, electrodes with an electrical circuit for stimulation and a transmission device to convert the linear motion of the muscle contractions into rotational motion for the magneto rotor, generates electrical energy. In an ex vivo demonstration using the gastrocnemius muscle of a toad, which was 28 mm in length and weighed 1.3 g, the electrical energy generated by the prototype exceeded the energy consumed for electrical stimulation, with the net power being 111 µW. It was demonstrated that the proposed implantable power generation system has the potential to replace implantable batteries for active implantable medical devices.