6 pediatric research
Post on 26-May-2015
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- 1. N6Profesor:Rosa Gonzles LlontopStudents:Campos Milian LeidyChavesta Manrique XinthiaHuamn Cueva ZoilaRacchum Nima AnitaRamrez Armas KarinaVelsquez Espinal Jos
2. N T M PLARIH LEA OCC6 Study Identifies a Window of Opportunityfor Cochlear Implants in Deaf Children 3. Short introduction What is a cochlear implant?What a cochlear implant does?Cochlear implant surgery Can a cochlear implant resstore hearing for everyone?Learning to use a cochlear implant 4. 1Short introduction 5. nddr en achil ienceomer,He lp s s expe phone lted adu on th sic, anng u f t alki ng to m oices o dnievveliste ing th s and lo rhea friend . BIONIC EAR irsthe one esimetSom dlleca Cochlear implants Cochlear implants Offers the hope of regainingor restoring the ability to sense sound for some peoplewho have experienced significant hearing loss. 6. 2What is a cochlear implant? 7. Surgically implanted devicethat helps overcome problems in the inner ear, or cochlea. Is an 8. 3What a cochlear implant does? 9. The cochleaThe cochlea is a snail-shaped,curled tube located in the areaof the ear where nerves arecontained. Its function is to gather electrical signals from sound vibrations and transmit them to your auditory nerve (or hearing nerve). 10. The hearing nerve.The hearing nerve thensends these signals to thebrain, where theyretranslated into recognizablesounds. 11. If important parts of the cochlea arent working properly and the hearing nerve isnt being stimulated, theres no way for the electrical signals to get to the brain.Therefore, hearing doesntoccur. 12. The cochlear implant artificially stimulatesthe inner ear area with electrical signals,sends those signals to the hearing nerve,and allows the user to hear. 13. The actual cochlear implant consists ofan implant package, which is securedinside the skull, and a sound andspeech processor, which is wornexternally (outside the body). Several components of the cochlear implant work together to receive sound, transfer it to the hearing nerve, and send it to the brain. 14. The implant package is made up of A receiver-stimulator that contains all ofthe electronic circuits that control theflow of electrical pulses into the ear.An antenna that receives the signalsfrom the external sound and speechprocessorA magnet that holds the external soundand speech processor in placeOne wire containing electrodes that areinserted into the cochlea. 15. The sound and speech processor is aminicomputer that processes sound intodigital information, and then sends thatinformation to the implant package in theform of electrical signals. 16. The components of the sound and speech processor include:The actual sound and speech processingdeviceA microphone.A transmitter that sends the signals to theimplant package. 17. 4Cochlear implant surgery 18. THE ACTUAL SURGICALPROCEDURE 19. After havingcochlear implant surgery, achild 20. 5Can a cochlear implantresstore hearing for everyone? 21. The sound andThe sound and speech processorspeech processormicrophonemicrophoneanalyzes the analyzes theThe transmitterThe transmitter picks uppicks upsound and sound and sends the signalsends the signal soundsoundconverts it into anconverts it into an to the implantto the implantelectrical signal. electrical signal.package, wherepackage, where its decoded. .its decodedThe brain The brainThe nerve endings in The nerve endings in interprets theinterprets thethe cochlea are the cochlea are sound and thesound and thestimulatedstimulatedperson hears. person hears. 22. Cochlear ImplantSurgery The surgicalprocedure, which takes 2-4 hoursand uses generalanesthesia 23. Will probably be able to go home Will probably be able to go homeWill have to wear aadressing over Will have to wear dressing over the next daythe next daythe implant area for 24 hours the implant area for 24 hoursMay be off-balance or dizzy for aafew daysMay be off-balance or dizzy for few days May experience mild to May experience mild tomoderate pain moderate pain 24. 6Learning to use a cochlearimplant 25. Learning to Use aCochlear Implant 26. 1The specialist must fine-tune thesound and speech processor for every patient. 27. 2The user begins to pick up soundswith the implant, but giving theimplant full power is a gradualprocess that takes several months. 28. 3During the programming process, the userattends speech and language therapysessions to help identify and interpret thenew sounds he or she is hearing. 29. 4The therapy includes parenteducation and training. 30. Therapy will help a child develop andunderstand spoken languagethrough detecting, imitating, andassociating meanings of sounds. 31. In many cases, therapy has helpedkids with cochlear implants developspeech and language on par with their peers and attend mainstreamschools. 32. Some families choose to have implants in bothears.This can help with speech detection when there isbackground noise and in localizing the source ofsounds.