Ceramics material are compounds between metallic and non-metallic elements where it most frequently oxides, nitrides, and carbides(William D.callister,JR, David G. Rethwisch,2015). This material use for technical applications are commonly based on aluminium oxide. The properties of ceramics which are insulative to the passage of heat and electricity and more resistant to high temperature and harsh environment(William D.callister,JR, David G. Rethwisch,2015). Ceramics in cochlear implants use for sealing the point where the wires emerge from the implant casing. By using ceramics, the receiver coil can be placed within the casing as the ceramics do not affect signal transmission.
Source : Timo Stöver,2011
The implantable portion of the cochlear …show more content…
When there are sound wave get into the ear, the sound wave then will pass through the canal to the eardrum. At the eardrum, the sound wave are mechanically transmitted to the inner ear and amplified. In the inner ear there will be a cochlear where this cochlear consist of three different canals. At the middle canal of the cochlear is the organ of hearing where this part consist of sensitive hair cells. The hair cell can be stimulated electrically and forward the signal to the nerves and then on to the brain. Most of the cases of deafness, the hearing nerve still remain functional but the hair cell of the canal have been damage or even lost. In the cochlear implant system, the sound enters a microphone and travel to an external mini’s computer called a ‘sound processor’. At this part, the sound is processed and converted into digital information then, sent over a transmitter antenna to the surgically implanted part of the system. The implant will turn the sound information into electrical signal that travel down to an electrode array inserted into the tiny inner ear, or cochlea. The electrode directly stimulate the auditory nerve to sending the information to the brain. By passing the damage innerear, the cochlear implant provides an entirely new mechanism for hearing. ( cochlear implant online,
Source : Timo Stöver,2011
The implantable portion of the cochlear …show more content…
When there are sound wave get into the ear, the sound wave then will pass through the canal to the eardrum. At the eardrum, the sound wave are mechanically transmitted to the inner ear and amplified. In the inner ear there will be a cochlear where this cochlear consist of three different canals. At the middle canal of the cochlear is the organ of hearing where this part consist of sensitive hair cells. The hair cell can be stimulated electrically and forward the signal to the nerves and then on to the brain. Most of the cases of deafness, the hearing nerve still remain functional but the hair cell of the canal have been damage or even lost. In the cochlear implant system, the sound enters a microphone and travel to an external mini’s computer called a ‘sound processor’. At this part, the sound is processed and converted into digital information then, sent over a transmitter antenna to the surgically implanted part of the system. The implant will turn the sound information into electrical signal that travel down to an electrode array inserted into the tiny inner ear, or cochlea. The electrode directly stimulate the auditory nerve to sending the information to the brain. By passing the damage innerear, the cochlear implant provides an entirely new mechanism for hearing. ( cochlear implant online,