Cochlear™ Nucleus® Implants

The internal cochlear implant is made up of up two primary components: the implant receiver and the cochlear electrode array.

  1. The implant receiver, placed just under the skin, converts the digital sound signals picked up from the external sound processor and sends them down the electrode.
  2. The electrode is inserted into the cochlea, stimulates the cochlea through “contacts” and sends impulses directly to the hearing nerve where they are perceived as sound.

Industry's best implant reliability

When considering a cochlear implant, you want to know all the facts. You want to feel confident that you are choosing the most reliable cochlear implant available.

image of Nucleus implant components

Electrode Portfolio - Designed for Performance

We offer a wide range of electrode arrays so your surgeon can pick the best one for your level of hearing loss and to give you the greatest sound resolution and coverage in your inner ear.5-7

Key features of our electrode array portfolio:

  • The most active electrode contacts in the industry -22 contacts* - to provide the full spectrum of sound
  • Perimodiolar electrodes that are placed closest to the hearing nerve for an optimal hearing performance
  • Thinnest electrodes designed to preserve the delicate cochlear structures*
  • Only FDA-approved electrode implant designed to preserve your natural hearing**

*Measurements according to manufacturers specifications collateral.
**The Hybrid L24 Implant is approved in the US only for adults 18 and older

An Implant Designed Just For You

In addition to our wide range of electrode arrays, we also offer implants that are designed to last a lifetime. Our newest implant, the Nucleus® Profile Implant, further expands on our history of innovations that provide surgeons with more choices to fit your needs for your best hearing performance. The Profile Implant is the thinnest implant8-10 and is designed to follow the curvature of the head for a better cosmetic outcome and added comfort. It is also very impact resistant for added peace of mind.*

*Resistant against external impact up to 2.5 joules.

Safety matters with Cochlear implants and MRIs - Learn More

See how Cochlear Implants have changed lives.

Meet Clem - Cochlear Nucleus Implant video testimonial

Meet Allie - Cochlear Nucleus Implant video testimonial

Cochlear Connections

Meet others whose lives have been changed with a Cochlear Implant.


  1. 2017 Cochlear™ Nucleus ® Implant Reliability Report, Volume 15, January 2017 [cited 30 May 2017].
  2. Reliability You Can Count On [Internet]. MED-EL. April 2017 [cited 30 May 2017]. Available from:
  3. 2016 Cochlear Implant Reliability Report [Internet]. 028-M797-02 RevB ©2016 Advanced Bionics AG and affiliates. All rights reserved.[cited 30 May 2017]; Available from:
  4. Comparing latest generation implant reliability among manufacturers. Cochlear™ Nucleus Profile that has a Cumulative Survival Percentage (CSP) of 99.94% over 3 years compared to MED-EL SYNCHRONY implant that has a CSP of 98.96% over 2 years and HiRes 90k Advantage (by Advanced Bionics) has a CSP of 99.65% over 3 years. See reliability reports above. Data may be subject to updates by each manufacturer.
  5. Shannon, R. V., Fu, Q., J., Galvin, J. The number of spectral channels required for speech recognition depends on the difficulty of the listening situation. Acta Otolaryngologica, 2004. 552: p. 50-54.
  6. Briggs R et al. Implantation & Explantation Bone Study of the Nucleus 24 Contour with Softip. Poster presented at the 9th Symposium Cochlear Implants in Children, Washington D.C. April 24-26, 2003.
  7. Pfingst, B. E., Bowling, S. A ., Colesa, D. J., Garadat, S. N., Raphael, Y., Shibata, S. B., Strahl, S. B., Su, G. L., Zhou, N. Cochlear infrastructure for electrical hearing. Hearing Research, 2011. 281: p. 65-73.
  8. Cochlear™ Nucleus® Profile – CI512 Implant Spec Sheet, [PDF-Internet] [cited 2015 Jan 10].
  9. Technical Specifications.HiResolution™ Bionic Ear System by Advanced Bionics, [PDF-Internet] [cited 2015 Jan 5]. Available from:
  10. Concerto. World’s Smallest & Lightest Titanium Implant, [PDF-Internet] [cited 2015 Jan 5]. Available from: