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 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.
Original language | English |
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Pages (from-to) | 81-86 |
Number of pages | 6 |
Journal | Optoelectronics Letters |
Volume | 16 |
Issue number | 2 |
DOIs | |
Publication status | Published - 1 Mar 2020 |
Externally published | Yes |
Keywords
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