access icon openaccess Implantable micro-sized image sensor for data transmission with intra-vital optical communication

Interest in implantable microchips for medical sensors is increasing. To reduce the invasiveness of implantation, wireless data transmission in a living body is an important issue shared by all such sensors. Here, the authors report on a light-based wireless data transmission method for implantable biomedical sensor chips. An implantable micro-sized image sensor (400 × 1200 μm2) that was designed to modulate a small light-emitting diode (λ = 855 nm) with pulse-width modulation for intra-vital optical communication (IOC) was developed. Both a transmitter device and a receiver device for IOC were prepared, and optical image data transmission through biological tissue (a mouse skull bone) was successfully demonstrated.

Inspec keywords: data communication; prosthetics; transmitters; biomedical equipment; image sensors; optical communication; bone; light emitting diodes; receivers

Other keywords: implantable microsized image sensor; pulse-width modulation; wavelength 855 nm; mouse skull bone; intravital optical communication; biomedical sensor chips; optical image data transmission; data transmission; biological tissue; transmitter device; light-emitting diode; implantable microchips; receiver device; light-based wireless data transmission method

Subjects: Light emitting diodes; Prosthetics and other practical applications; Prosthetics and orthotics; Optical communication; Transmission line links and equipment; Image sensors

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