Open AccessImplantable micro‐sized image sensor for data transmission with intra‐vital optical communication
Author(s) -
Takehara Hiroaki,
Hayami Hajime,
Nagata Kengo,
Ohta Yasumi,
Noda Toshihiko,
Sasagawa Kiyotaka,
Tokuda Takashi,
Ohta Jun
Publication year - 2017
Publication title -
the journal of engineering
Language(s) - English
Resource type - Journals
ISSN - 2051-3305
DOI - 10.1049/joe.2016.0311
Subject(s) - transmission (telecommunications) , data transmission , computer science , computer hardware , telecommunications
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 μm 2 ) 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.