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Engineering Platform and Experimental Protocol for Design and Evaluation of a Neurally-controlled Powered Transfemoral Prosthesis

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Prototype to product-developing a commercially viable neural prosthesis.

Peter Seligman¹

¹Cochlear Limited, Level 1, 174 Victoria Parade, East Melbourne, VIC. 3002, Australia. pseligman@cochlear.com

Journal of Neural Engineering

|October 24, 2009

Summary

Cochlear implants, or bionic ears, electrically stimulate the auditory nerve to restore hearing. This multidisciplinary engineering feat allows many recipients to understand speech without lipreading.

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Area of Science:

Biomedical Engineering
Neuroscience
Audiology

Background:

Hearing loss affects millions, with hearing aids insufficient for some.
Cochlear implants offer an alternative by directly stimulating the auditory nerve.
Over 170,000 individuals worldwide have received cochlear implants.

Purpose of the Study:

To trace the engineering development of modern cochlear implants.
To outline the challenges in designing long-term implantable neural prostheses.
To highlight the interdisciplinary collaboration required for cochlear implant advancement.

Main Methods:

Review of the historical engineering development of cochlear implant technology.
Analysis of the multidisciplinary contributions from various scientific and medical fields.

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Identification of key engineering challenges in device design and implantation.

Main Results:

Cochlear implants have evolved significantly over 30 years through multidisciplinary efforts.
Engineering advancements have focused on biocompatibility, reliability, safety, and surgical integration.
Successful development relies on academia-industry partnerships.

Conclusions:

Cochlear implants are mature, effective neural prostheses for severe hearing loss.
Engineering innovation continues to address the complexities of long-term in-body device function.
Collaboration between research institutions and industry is crucial for future progress.