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Published on: August 30, 2019
An integrated vestibular-cochlear prosthesis for restoring balance and hearing
Thomas Lu1, Hamid Djalilian, Fan-Gang Zeng
1Dept Otolaryngology-Head & Neck Surgery, University of California, Irvine, CA 92697, USA. telu@uci.edu
This study presents an integrated vestibular-cochlear implant, merging electric hearing and balance restoration. This innovative device offers a potential solution for individuals with combined hearing and vestibular impairments, particularly in Asian countries.
Area of Science:
- Biomedical Engineering
- Neuroscience
- Otolaryngology
Background:
- Existing cochlear implants can be modified to integrate vestibular function.
- Individuals with both hearing and vestibular loss are a significant patient population, especially in Asia.
- Ototoxic drugs and genetic factors contribute to the prevalence of dual sensory loss.
Purpose of the Study:
- To discuss the validation challenges of integrating electric hearing and balance functions onto a single device.
- To explore the potential of a rapidly prototyped integrated vestibular-cochlear implant.
- To address the ethical considerations and surgical risks of combined implantation.
Main Methods:
- Modification of modern cochlear implants with gyroscope sensors.
- Reallocation of electrodes for semicircular canal stimulation.
- Sharing of external digital signal processing (DSP) and internal receiver/stimulator components.
Main Results:
- The integrated device combines auditory and vestibular stimulation capabilities.
- Hardware and software validation issues for the dual-function implant are discussed.
- The device is initially targeted at deaf individuals with vestibular impairment.
Conclusions:
- An integrated vestibular-cochlear implant offers a promising approach for treating combined hearing and balance disorders.
- This technology could restore balance and treat various vestibular dysfunctions.
- The device holds particular relevance for patient populations in Asian countries like China and India.
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