Hidden hearing aid

To create an implantable hearing aid, the team devised a non-contact fiber-optic interferometric sensor, to serve as a microphone implanted inside the middle-ear. Through a comprehensive in-vitro and in-vivo animal investigation the team demonstrated the capability of the proposed system for the accurate measuring of vibrations inside the middle ear. Future work will must focus on the redesign and miniaturization of the entire sensing system and dramatically decrease the overall power consumption, with a goal to make a totally implantable device.

In-vitro and in-vivo measurement of the animal's middle ear acoustical response by partially implantable fiber-optic sensing system

Djinović, Z. et al., Biosensors and Bioelectronics (2018)