Active OS implants

Learn more about how active osseointegrated steady-state implants work and how they may improve your hearing.


What you'll find on this page

  • How osseointegrated steady-state implants work
  • The main components of a Cochlear™ Osia® System
  • The benefits of active OS implants

An active osseointegrated steady-state implant (active OS implant) helps those with conductive or mixed hearing loss or single-sided deafness by using bone conduction technology that has not been used for this type of system before - piezoelectric stimulation. The advantages of piezoelectric stimulation include enhanced durability and improved hearing at high-frequencies that are critical for understanding speech.

How does an active OS implant work?

Active osseointegrated steady-state implants (OS implants) use the principle of bone conduction to bypass the damaged or missing parts of the outer or middle ear. However, unlike traditional bone conduction solutions, OS implants deliver the sound vibrations using digital piezoelectric stimulation through the transducer (the part that creates vibrations) located completely under the skin.

An active OS implant system includes the following main components:

  • External sound processor that captures sound in the air - the Osia® 2 Sound Processor is lightweight, durable and features state-of-the-art connectivity technology.
  • Internal implant that is placed under the skin and includes our Piezo Power™ transducer that is designed to deliver long-term performance and durability.1

Together, these components bypass the part of the ear that isn't working and send vibrations to the inner ear where they are sent to the brain and interpreted as sound.

How the Osia System Works

Will you benefit from an active OS implant?

Research has shown that an active osseointegrated steady-state implant may help you or a loved one:2-5

  • Improve your understanding of speech in quiet and in noisy environments
  • Hear better, even in noise
  • Enjoy improved sound quality (compared to hearing aids) by bypassing the damaged part of the ear to reduce the amount of amplification needed to hear better

Try a bone conduction solution, then decide

You have the opportunity to try a Cochlear™ bone conduction solution before deciding whether to get an implant. Make an appointment with a Hearing Implant Specialist and they will be able to advise you if you may benefit from a bone conduction solution. Find one today.

Find a Hearing Implant Specialist near you


In the United States and Canada, the placement of a bone anchored implant is contraindicated in children below the age of five. In the United States, the placement of an Osia System is contraindicated in children below the age of 12. In Canada, the Osia System is indicated for children ages five and older.

Please seek advice from your medical practitioner or health professional about treatments for hearing loss. They will be able to advise on a suitable solution for the hearing loss condition. All products should be used only as directed by your medical practitioner or health professional. Not all products are available in all countries. Please contact your local Cochlear representative.

Views expressed by Cochlear recipients and hearing health providers are those of the individual. Consult your hearing health provider to determine if you are a candidate for Cochlear technology. Outcomes and results may vary.

ACE, Advance Off-Stylet, AOS, AutoNRT, Autosensitivity, Beam, Button, CareYourWay, Carina, Cochlear, 科利耳, コクレア, Cochlear SoftWear, Codacs, ConnectYourWay, Contour, Contour Advance, Custom Sound, ESPrit, Freedom, Hear now. And always, HearYourWay, Hugfit, Hybrid, Invisible Hearing, Kanso, MET, MicroDrive, MP3000, myCochlear, mySmartSound, NRT, Nucleus, Off-Stylet, Slimline, SmartSound, Softip, SPrint, True Wireless, the elliptical logo, WearYourWay and Whisper are either trademarks or registered trademarks of Cochlear Limited. Ardium, Baha, Baha SoftWear, BCDrive, DermaLock, EveryWear, Vistafix, and WindShield are either trademarks or registered trademarks of Cochlear Bone Anchored Solutions AB.


  1. Dotevall M. Osia OSI200 Implant Technical Brief. Cochlear Bone Anchored Solutions AB, Swweden. 2020; D1602089.
  2. Lau K, Scotta G, Wright K, Proctor V, Greenwood L, Dawoud M, Ray J. First United Kingdom experience of the novel Osia active transcutaneous piezoelectric bone conduction implant. Eur Arch Otorhinolaryngol. 2020;140(3):212-219.
  3. Mylanus EAM, Hua H, Wigren S, et al. Multicenter Clinical Investigation of a New Active Osseointegrated Steady-State Implant System. Otol Nueroltol. 2020;41(9):1249-1257.
  4. Goycoolea M, Ribalta G, Tocornal F, et al. Clinical performance of the Osia system, a new active osseointegrated implant system. Results from a prospective clinical investigation. Acta Otolaryngol. 2020;140(3):212-219.
  5. de Wolf MJ, Hendrix S, Cremers CW, Snik AF. Better performance with bone-anchored hearing aid than acostic devices in patients with severe air-bone gap. Laryngoscope. 2011;121(3):613-6.