Artificial Cochlea Hearing loss conductive hearing loss sensorineural

Artificial Cochlea Hearing loss • conductive hearing loss • sensorineural hearing loss • mixed hearing loss Jong-Mo Seo

Artificial Cochlea Bone-anchored hearing aid (BAHA) Jong-Mo Seo

Artificial Cochlea Middle ear transducer Jong-Mo Seo

Artificial Cochlea Envoy ESTEEM: piezoelectric Jong-Mo Seo

Artificial Cochlea MED-EL: electromagnetic • Vibration Ossicular Prosthesis (VOPR) Jong-Mo Seo

Artificial Cochlea Otologics: electromechanical Jong-Mo Seo

Artificial Cochlea Jong-Mo Seo

Artificial Cochlea Jong-Mo Seo Cochlea implant • Volta (1790): metal rods in his own ears with 50 -volt circuit > “like a thick boiling soup” noise • Djourno & Eyriès (1950 s): the 1 st direct stimulation of CN 8 > “a roulette wheel” or “a cricket” sound • House (1969): the 1 st wearable implant > a single electrode designed to aid lip-reading • Clark (1978): the 1 st Australian multi-channel cochlear implant • U. S. FDA approval for adult (1984) > 2 years (1990) > 18 months (1998) > 12 months (2002) • Totally implantable cochlear implant (TIKI, 2005)

Artificial Cochlea Basic Scheme Jong-Mo Seo

Artificial Cochlea Advanced Bionics, US Jong-Mo Seo

Artificial Cochlear Ltd, Australia Jong-Mo Seo

Artificial Cochlea MED-EL, Austria Jong-Mo Seo

Artificial Cochlea Neurelec, France Jong-Mo Seo

Artificial Cochlea Jong-Mo Seo New and future directions • Bilateral implantation – the ability to listen using the ear with the better signal-to-noise-ratio – Sound localisation – Binaural advantage of using the signal from both ears • Hybrid electro-acoustic stimulation • Totally Implantable Cochlear Implant (TIKI)

Artificial Cochlea Take home message • Types of hearing loss and aids Jong-Mo Seo