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An implantable wireless powered light source

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【Author】 LI Ya-min;PEI Wei-hua;TANG Jun;WANG Yu-guang;YAO Zhao-lin;LIU Zhi-duo;CHEN Hong-da;State Key Laboratory on Integrated Optoelectronics, Institute of Semiconductors, Chinese Academy of Sciences;University of Chinese Academy of Sciences;CAS Center for Excellence in Brain Science and Intelligence Technology;Peking University Hospital of Stomatology;

【通讯作者】唐君;

【机构】 State Key Laboratory on Integrated Optoelectronics, Institute of Semiconductors, Chinese Academy of Sciences； University of Chinese Academy of Sciences； CAS Center for Excellence in Brain Science and Intelligence Technology； Peking University Hospital of Stomatology；

【摘要】 A wireless powered small volume light source composed of light emitting diode(LED) array is developed for implantation. According to the volt-ampere characteristics of LED and the load characteristics of coil coupling power supply, the light power and work distance of implant LED-array are optimized by changing the number and series-parallel connection mode of LEDs in receiver. The wireless powered implant can provide 5.4 m W light. The entire implant is seamlessly packaged within parylene, a biocompatible material, coating by chemical vapor depositing. The volume of the implant is 9 mm×4 mm×3 mm, the weight of which is only 0.25 g. The device can work continuously for more than three weeks in 0.9% saline and the prime prototype of the device has been validated by animal implantation.更多还原

【Abstract】 A wireless powered small volume light source composed of light emitting diode(LED) array is developed for implantation. According to the volt-ampere characteristics of LED and the load characteristics of coil coupling power supply, the light power and work distance of implant LED-array are optimized by changing the number and series-parallel connection mode of LEDs in receiver. The wireless powered implant can provide 5.4 m W light. The entire implant is seamlessly packaged within parylene, a biocompatible material, coating by chemical vapor depositing. The volume of the implant is 9 mm×4 mm×3 mm, the weight of which is only 0.25 g. The device can work continuously for more than three weeks in 0.9% saline and the prime prototype of the device has been validated by animal implantation.更多还原

【关键词】 implant； implantable； implantation； powered； receiver； transmitter； luminous； validated； implanted； saline；

【基金】 supported by the National Key Technology R&D Program of China(Nos.2016YFC0105604,2017YFA0205903,2017YFA0701100 and 2016YFB0402405);the National Natural Science Foundation of China(Nos.61634006,61335010 and 61671424);the Strategic Priority Research Program of Chinese Academy of Science(Nos.XDB32030100 and XDB32040200)

【文献出处】 Optoelectronics Letters ,光电子快报(英文版) , 编辑部邮箱 ,2020年02期

【分类号】R312;TN312.8
【下载频次】45

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