期刊
CONVERGING CLINICAL AND ENGINEERING RESEARCH ON NEUROREHABILITATION II, VOLS 1 AND 2
卷 15, 期 -, 页码 667-671出版社
SPRINGER INTERNATIONAL PUBLISHING AG
DOI: 10.1007/978-3-319-46669-9_110
关键词
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资金
- Marie Curie grant from the European Commission [IRG 256376]
- PRC fellowship from the Universitat Pompeu Fabra
To overcome the miniaturization bottleneck imposed by existing power generation/transfer technologies for implantable stimulators, we have proposed a heterodox electrical stimulation method based on local rectification of high frequency (>= 1 MHz) current bursts delivered through superficial electrodes. We have reported 2 mm thick addressable injectable stimulators, made of off-the-shelf components, that operate according to this principle. Since a significant amount of high frequency power is wasted by Joule heating, the method exhibits poor energy efficiency. In here we have performed a numerical case study in which the presence of the above implant prototypes is simulated in an anatomically realistic leg model. The results from this study indicate that, despite low power transfer efficiency (similar to 0.05 %), the power consumed by the external high frequency current generator is low enough (<4 W) to grant the use of small portable batteries.
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