Current cochlear implant systems do not yet provide recipients invisible, carefree, and 24/7 hearing. The main technical challenge for a totally implantable cochlear implant (TICI) system is the development of a suitable implantable microphone (IM)....
This is a feasibility study at an early engineering stage; no clinical practice change is warranted, but audiologists should follow this line of research as it could reshape fully implantable cochlear implant counseling in the future.
A viable implantable middle ear microphone would be a key enabling technology for fully invisible, 24/7 cochlear implants, potentially transforming patient quality of life and expanding implant candidacy conversations.
- 01Study investigates an implantable microphone placed in the middle ear cavity as a sound input for cochlear implants.
- 02Goal is to enable fully implantable cochlear implant systems with 24/7 wear and no external components.
- 03Published in Hearing Research, a leading peer-reviewed audiology/hearing science journal.
- 04This is a feasibility analysis — clinical application is likely years away.
- 05Middle ear pressure microphone design presents challenges related to biological noise and pressure fluctuations.
An implantable middle ear cavity pressure microphone is technically feasible for use as a sound sensor in a fully implantable cochlear implant system.
studypartially supportedA fully implantable cochlear implant with 24/7 invisible hearing is achievable using this microphone approach.
studyunclear- PMID
- 42214992
- DOI
- 10.1016/j.heares.2026.109685.
- Journal
- Hearing Research
- Publication type
- research_article
- Evidence level
- na
- Population
- Bench/engineering feasibility study; not a human clinical population
- Intervention
- Implantable middle ear cavity pressure microphone
Primary outcomes
Technical feasibility of middle ear microphone as sound sensor; Signal quality and acoustic performance in the middle ear cavity