Sensors for implants : real-time failure detection on the Arabin Pessary

Implantable devices are used extensively in the medical field for treatment and rehabilitation. However, one key issue with the use of implantable medical devices is the absence of a safe, reliable method of evaluating the effectiveness of the device during the period of implantation. Majority of the current monitoring methods rely on the use of imaging techniques and analysis of chemical composition of fluids. The information provided by these methods lack information on the physical performance and condition of the implants. Additionally, the discrete nature of these methods limits the amount of information provided and risks the late discovery of complications. The concept of using sensors to keep track of implants is found in various applications, but the challenges in designing the ideal sensor have yet to be solved. These problems are the disruption of transmission by the tissue barrier, the longevity and safety of the battery source, and the danger of infection of artificial components such as wires. This chapter will introduce a novel design of implant sensor that addresses these problems and describes its theoretical application on the Arabin Pessary implant.