Fig. 3: Design of a wireless, rechargeable, fully implantable OS device for stimulating mouse DRG.
From: Optogenetic activation of mechanical nociceptions to enhance implant osseointegration
a Exploded view schematic of the wireless charging and smartphone-controlled OS device. b Schematic of the OS device implanted in a mouse to activate DRG. c Schematic of wireless charging for the implanted OS device. d The off and on photograph of the OS device. e Circuit diagram of the OS device. f Operating voltage of the OS device when running for 30 minutes at 5 mA drive current, 2 Hz frequency, and 10 ms pulse width. Data are presented as mean ± SEM (n = 5 biologically independent experiments). g Voltage and output power response of the OS device under different operating currents. h Temperature change of the OS device in vivo at different power levels. Data are presented as mean ± SEM (n = 3 biologically independent experiments). i Charging time of the optical stimulation component in proximity to the charging box. j Schematic diagram of spatial transmission efficiency for wireless charging (distance: 22 cm, transmission efficiency: 49.015%). k Discharging profile of the OS device. Source data are provided as a Source Data file.
