| LI Ya-min,PEI Wei-hua,TANG Jun,WANG Yu-guang,YAO Zhao-lin,LIU Zhi-duo,CHEN Hong-da.An implantable wireless powered light source[J].Optoelectronics Letters,2020,16(2):81-86 |
| An implantable wireless powered light source |
| Author Name | Affiliation | | LI Ya-min | State Key Laboratory on Integrated Optoelectronics, Institute of Semiconductors, Chinese Academy of Sciences,Beijing 100083, China | | PEI Wei-hua | State Key Laboratory on Integrated Optoelectronics, Institute of Semiconductors, Chinese Academy of Sciences,Beijing 100083, China
CAS Center for Excellence in Brain Science and Intelligence Technology, Shanghai 200000, China | | TANG Jun | State Key Laboratory on Integrated Optoelectronics, Institute of Semiconductors, Chinese Academy of Sciences,Beijing 100083, China | | WANG Yu-guang | Peking University Hospital of Stomatology, Beijing 100083, China | | YAO Zhao-lin | State Key Laboratory on Integrated Optoelectronics, Institute of Semiconductors, Chinese Academy of Sciences,Beijing 100083, China | | LIU Zhi-duo | State Key Laboratory on Integrated Optoelectronics, Institute of Semiconductors, Chinese Academy of Sciences,Beijing 100083, China | | CHEN Hong-da | State Key Laboratory on Integrated Optoelectronics, Institute of Semiconductors, Chinese Academy of Sciences,Beijing 100083, China |
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| Abstract: |
| Awireless 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 mW 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. |
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