期刊
出版社
SAGE PUBLICATIONS LTD
DOI: 10.1177/0954411916638889
关键词
Implantable medical device; power generator; muscle; electrical stimulation
资金
- Grants-in-Aid for Scientific Research [16K14142] Funding Source: KAKEN
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 28mm in length and weighed 1.3g, the electrical energy generated by the prototype exceeded the energy consumed for electrical stimulation, with the net power being 111 mu W. It was demonstrated that the proposed implantable power generation system has the potential to replace implantable batteries for active implantable medical devices.
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