Sensors and sensorsystems for in vivo monitoring

Abstract

Sensors and the related interface electronics have become available in small size and low power. This offers many new opportunities in the medical field to explore the body in places where nobody has ever been before. This paper will cover two topics : at first how sensors and the electronics can be miniaturized and tailored to suit the medical needs. It is demonstrated which sensors can be applied succesfully, and which ones can not. In a second part, the development and fabrication of fully functional implantable devices will be discussed. Application areas in the field of animal welfare, urology and dental implant systems are shown. Crucial for all these devices are the miniaturisation, and low power interface circuits, along with low power telemetry and inductive powering

Inductance-based sensing technique for wireless, remote-query measurement in liquid media

“…They are mostly referred to as an inductor/capacitor (LC) sensor, which integrates a series-connected interdigital capacitor (IDC) with a spiral inductor printed on a glass substrate or silicon substrate [8][9][10][11][12]. A wireless magnetic sensing device with LC resonant-circuit was developed for the in-situ monitoring of the growth of human breast cancer cells [13], detection of E. coli O157:H7 [14], or monitoring the bacterial contamination of milk [15].…”