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The Auditory Ossicles

The Auditory Ossicles

The auditory ossicles of the middle ear transmit sounds from the air as vibrations to the fluid-filled cochlea. The auditory ossicles consist of two malleus (hammer) bones, two incus (anvil) bones, and two stapes (stirrups), one on each side. These bones develop during the fetal stage and are the ones to ossify first. They are fully mature at birth and do not grow afterward.
The aptly named stapes look very much like a stirrup. The three ossicles are unique to mammals, and each plays a role in...

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Otologics active middle ear implants.

Herman A Jenkins¹, Kristin Uhler¹

¹Department of Otolaryngology, University of Colorado, School of Medicine, 12631 East 17th Avenue, B205, Aurora, CO 80045, USA.

Otolaryngologic Clinics of North America

|October 11, 2014

Summary

This summary is machine-generated.

Outcomes for the Otologics active middle ear implant show no significant changes in hearing thresholds or speech understanding. Further research is needed to optimize patient selection and outcomes for these new hearing devices.

Keywords:

Active middle ear prosthesis Carina Cochlear Middle ear transducer Otologics

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Area of Science:

Otolaryngology
Biomedical Engineering
Audiology

Background:

Active middle ear implants (AMEIs) offer a novel approach to hearing loss treatment.
The Otologics AMEI system includes semi-implantable and fully implantable (Carina) devices.
Understanding the clinical outcomes and limitations of early AMEI systems is crucial.

Purpose of the Study:

To report the outcomes of the Otologics active middle ear implant (Carina).
To detail the inclusion and exclusion criteria for surgical and audiologic management.
To evaluate the device's performance in conductive and mixed hearing losses.

Main Methods:

Clinical trial data analysis for audiologic outcomes.
Evaluation of unaided hearing thresholds and speech recognition in noise.
Experiments in animal and human cadaveric models for conductive and mixed hearing loss.

Main Results:

No significant changes observed in unaided air and bone conduction thresholds.
No significant difference in monosyllabic word scores or sentences in noise.
Demonstrated feasibility in conductive and mixed hearing loss models.

Conclusions:

The Otologics AMEI (Carina) shows stable hearing thresholds and speech understanding post-implantation.
Current findings suggest the technology is in its early stages.
Further investigation is required to refine patient selection and manage expectations for AMEI use.