Cochlear Implant & Bone Anchored Hearing Aid

1. CochlearImplant & Bone Anchored Hearing Aid How the hearing sense works? The Cochlearimplant, CI. Who is a candidate for cochlearimplant? Manufacturersof CI. Compatibilitybetween Comfort Digisystem and the availablecochlearimplantsin the market. Bone Anchored Hearing Aid The typical BAHA user. Manufacturersof BAHA. Compatibilitybetween Comfort Digisystem and the BAHA

2. The human Hearing sense The outer ear picks up the sound vibrations The Sound vibrations are directed to the middle ear by the ear channel

3. The human Hearing sense Ossicular Chain The Ear drum sets the Ossicular chain in motion The Ossicular chain in its turn sets the Perilymph (Fluid in the cochlear) in the cochlear in motion

4. The human Hearing sense The Mechanical vibrations are converted to the electrical pulses by the hair cells The electrical pulses are sent to the auditory cortex by the auditory nerves

5. CochlearImplant Some facts about the Cochlear Implant: Around 1790 Alessandro Volta experimentally discovered that electrical stimulation in the auditory system can create a perception of sound. “ It is like a thick boiling soup“, He said. André Djournoperforms the first cochlear implantation in France, Dr. Michelson's patents and device are thought as the first cochlear implants. Alessandro Volta André Djourno

6. CochlearImplant • A cochlear implant consists of two parts: • The sound processor • The implant A flexible electrode array is inserted into the entire cochlear

7. CochlearImplant The sound vibrations are converted to electrical signals and transmitted through the skin into the implant via the coil. The implant creates electrical pulses from the received signals and sends them to Auditory Cortex via Cochlear and auditory nerves.

8. Cochlear Implant Brief overview

9. Who is a CI Candidate? For young children: 12 months to 2 years Have profound sensorineural hearing loss (nerve deafness). Receive limited benefit from hearing aids. Children: 2 to 17 years Have severe-to-profound sensorineural hearing loss (nerve deafness). Receive limited benefit from hearing aids. Adults: 18 year and overHave moderate-to-profound sensorineural hearing loss (nerve deafness). Receive limited benefit from hearing aids. Score 50 percent or less on speech recognition tests in the ear to be implanted and 60 percent or less in the non-implanted ear when using hearing aids.

10. CochlearImplants in the world Approximately 200 000 CI wearers globally and their number increases with 33,000 Cis annually 80,000 CI wearers in North America 20,000 CI wearers in Latin America 70,000 CI wearers in Europe 30,000 CI wearers in Asia/ Pacific region

11. CochlearImplants in ourcore markets Norway Sweden Norway = 990 users Sweden = 2,100 users Denmark = 1,036 users Germany = 15,000 – 18,000 users USA = 80,000 users Denmark Germany

12. Manufacturersof CI Advanced Cochlear Systems in Seattle, Washington, NurobiosysCorporation in Seoul, Korea Nurotron Biotechnology Inc. based in both Irvine,CA and Hangzhou, China

13. Comfort Digisystem & CIs Advanced Bionics * The test results are based upon the field tests performed by Comfort Audios staff.

14. Comfort Digisystem & CIs Cochlear™ * The test results are based upon the field tests performed by Comfort Audios staff.

15. Comfort Digisystem & CIs MED-EL * The test results are based upon the field tests performed by Comfort Audios staff.

16. Bone Anchored Hearing Aid Invented and Developed by a Swedish Medical company named Entific in Mölndal Sweden. Founded in 1999.

17. Who is a typical BAHA candidate? People with Aural atresia People with Microtia A Bone Conduction Threshold = 30-40 dB HL People with large conductive hearing loss

18. BAHA World Wide About 70,000 users World wide Increasing by 20% per Year 0.4 percent of the market is penetrated Two Manufacturers: Cochlear = 90% Oticon = 10%

19. Comfort Digisystem & BAHA * The test results are based upon the field tests performed by Comfort Audios staff.

20. Comfort Digisystem & BAHA * The test is unfinished.

21. Results of our compatibility tests * All test results are based upon the field tests performed by Comfort Audios staff.