Restoring hearing with active hearing implants

Area of Science:

• Otorhinolaryngology
• Biomedical Engineering
• Neurosurgery

Background:

• Conventional hearing aids present challenges like poor sound quality, occlusion, feedback, and stigma, resulting in low adoption rates.
• Active hearing implants offer alternatives, categorized into impedance transformation implants (ITI), cochlear amplifier implants (CAI), cochlear implants (CI), and brain stem implants (BSI).

Purpose of the Study:

• To provide a comprehensive overview of active hearing implants for hearing restoration.
• To highlight the advantages of cochlear amplifier implants (CAI) over conventional devices.
• To discuss the future integration of computer and robot-aided surgery in implant procedures.

Main Methods:

• Review of existing literature on active hearing implant technologies.
• Classification and comparison of different types of active hearing implants (ITI, CAI, CI, BSI).
• Analysis of the benefits and limitations of each implant type.

Main Results:

• Cochlear amplifier implants (CAI) offer potential advantages such as improved sound fidelity, no ear canal occlusion, elimination of feedback, and invisibility.
• Impedance transformation implants (ITI) are suitable for middle ear hearing loss, while CAI and CI address inner ear hearing loss.
• Cochlear implants (CI) are designed for profoundly deaf individuals.

Conclusions:

• Active hearing implants represent a significant advancement in hearing restoration, addressing shortcomings of traditional hearing aids.
• Cochlear amplifier implants (CAI) show promise for enhanced audiological outcomes and patient experience.
• Future advancements, including computer and robot-aided surgery, are expected to further refine implant procedures and efficacy.