* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Download How the ear works - Advanced Bionics
Survey
Document related concepts
Auditory processing disorder wikipedia , lookup
Speech perception wikipedia , lookup
Telecommunications relay service wikipedia , lookup
Sound localization wikipedia , lookup
Olivocochlear system wikipedia , lookup
Evolution of mammalian auditory ossicles wikipedia , lookup
Lip reading wikipedia , lookup
Hearing loss wikipedia , lookup
Noise-induced hearing loss wikipedia , lookup
Audiology and hearing health professionals in developed and developing countries wikipedia , lookup
Transcript
Becoming Familiar with Cochlear Implants Name Title Becoming Familiar_V3_Dec2008 Advanced Bionics • Founded by Alfred E. Mann with a vision to fully restore hearing for severe to profoundly deaf individuals • Led by Jeff Greiner who has been the company’s operational leader since its founding providing experience and expertise in implantable medical products • Only American cochlear implant company— based in Sylmar, CA • More than 500 employees around the globe What you will learn today: • How the ear works • How to interpret the audiogram • Cochlear Implant Candidacy • Treatment Options for Hearing Loss • Management of a child with a cochlear implant The ear consists of four main parts: Brain Inner Ear Outer Ear Auditory Nerve Middle Ear The Outer and Middle Ear Ear Drum Bones of the Middle Ear The Inner Ear Brain Cochlea Auditory Nerve Hearing Loss Brain Without functioning sensory cells in the cochlea, sound information cannot reach the brain for processing. Damaged Sensory Cells in Cochlea What you will learn today: • How the ear works • How to interpret the audiogram • Cochlear Implant Candidacy • Treatment Options for Hearing Loss • Management of a child with a cochlear implant The Audiogram Audiogram: A graph that shows an individuals type and degree of hearing loss. Frequency Low Pitch to High Pitch Loudness Soft to Loud Normal Hearing xo xo xo xo xo Moderate to Severe Loss xo xo xo xo xo xo Severe to Profound Loss xo xo xo xo xo Types of Hearing Loss 1. Sensorineural 2. Conductive 3. Mixed Sensorineural Hearing Loss xo< xo< xo< xo< xo< xo Conductive Hearing Loss < xo < xo < xo < xo < xo xo Mixed Hearing loss < xo < < xo < xo xo xo < xo What you will learn today: • How the ear works • How to interpret the audiogram • Cochlear Implant Candidacy • Candidacy Guidelines • Steps to determine candidacy • Treatment Options for Hearing Loss • Management of a child with a cochlear implant Who is a Candidate for a Cochlear Implant? Range of hearing for a cochlear implant candidate. Who is a Candidate for a Cochlear Implant? Adults (18 years+) • Severe to Profound, bilateral sensorineural hearing loss • Less than 50% speech recognition with hearing aids on open-set sentence recognition Children (12 months - 2 years) • Profound, bilateral sensorineural deafness (> 90 dB HL) • Little or no benefit from hearing aids Children (2 years - 17 years) • Severe to Profound, bilateral sensorineural deafness • Little or no benefit from hearing aids Pediatric Cochlear Implant Candidacy • Audiologic Evaluation • Medical Evaluation • Speech Language Evaluation • Psychological Evaluation • Educational Evaluation Team Approach Teacher of The Deaf Surgeon & Pediatrician Psychologist Child SLP Care Givers Audiologist Audiological Evaluation • Determine the type and degree of hearing loss • Air & bone conduction thresholds for each ear • ABR & OAEs • Assess the child’s current amplification system • Aided sound field testing • Aided speech perception testing • Counseling • Address realistic expectations • Device selection • Post-operative follow-up Medical Evaluation • • • • Determine cause of hearing loss Assess status of middle ear & cochlea CT scan/MRI Counseling • Hearing loss • The surgical procedure • Typically out-patient and performed by an otolaryngologist (ENT) or otologist (ear specialist) • Post surgical considerations Bilateral Cochlear Implants • Bilateral Implants • Industry trend • Simultaneous vs. Sequential • Benefits: • • • • Improved directionality Improved listening in noise Clarity of speech Developmental Speech & Language Evaluation • Areas assessed • Vocabulary - knowledge of single words • receptive • expressive • Language - word combinations, grammar • receptive • expressive • Articulation/Intelligibility • Reading skills Developmental Evaluation • Assessment of non verbal & verbal IQ • Verbal IQ assessed when appropriate • Counseling for family • Impact of hearing loss on the family unit • Assessment of child’s learning style • Assessment of any other underlying issues • Serves as a baseline evaluation Educational Evaluation • Areas to consider: • Communication Methodology • Support services • Speech/language and auditory skill development • Professional training What you will learn today: • How the ear works • How to interpret the audiogram • Cochlear Implant Candidacy • Treatment Options for Hearing Loss • Management of a child with a cochlear implant Treatment Options for Hearing Loss Hearing Aids Cochlear Implants Treatment Options for Hearing Loss Hearing Aids Behind-the-ear In-the-Canal In-the-Ear How is a Cochlear Implant Different From a Hearing Aid? Hearing Aid Acoustically amplify sound. Cochlear Implant Convert sound into electrical signals. Rely on the responsiveness Bypass the inner ear of healthy inner ear sensory cells and stimulate sensory cells. the hearing nerve directly. How Does a Cochlear Implant Work? A Cochlear Implant consists of two main parts: Internal Equipment External Equipment or Internal Equipment HiRes™ 90K Internal Electronics Electrode Array 3 turn gold wire coil Removable Magnet Harmony® HiResolution® Bionic Ear System Engineered to be Reliable • Industry Standard Reliability • 99.1% CSR at 2 ½ years for the current Harmony Bionic Ear System • Built to withstand rain, perspiration, and moisture • Speech processor return rate is 1.5% (all returns including moisture) Harmony® Sound Processor HiResolution® Sound What do parents want for their child? • …to be able to hear like everyone else does • …to fit in • …to realize their potential • …to be successful listening in today’s world How Does a Cochlear Implant Work? • Sound waves enter through the microphone. • The sound processor converts the sound into a distinctive digital code. • The electrically coded signal is transmitted across the skin through the headpiece to the internal portion of the device. • The internal device delivers the sound to the electrodes. • The electrodes stimulate the hearing nerve. • The hearing nerve sends the signal to the brain for processing. How Does a Cochlear Implant Work? What you will learn today: • How the ear works • How to interpret the audiogram • Cochlear Implant Candidacy • Treatment Options for Hearing Loss • Management of a child with a cochlear implant Pediatric Management • Audiologic Management • Rehabilitation • Family Commitment • School Support Audiologic Management • Goal is to assure access to sound adequate for auditory development • Programming or “mapping” of the cochlear implant device • Assessments at regular intervals to track auditory development • Age appropriate techniques & materials Audiologic Management CI CI CI CI CI Rehabilitation is KEY A cochlear implant is NOT a “cure” Parent Commitment School Support • • • • • Understand what a cochlear implant is & equipment troubleshooting Assist in the management of the device and child Perform behavioral listening checks on a daily basis Know where to find support and resource materials Maintain communication b/w the student’s parents, teachers and cochlear implant center Summary • Cochlear implants are an effective treatment for severe to profound sensorineural hearing loss. • A multi-disciplinary approach is necessary when determining cochlear implant candidacy in children. • Post-operative management of a child with a cochlear implant consists of programming of the sound processor and intensive rehabilitation. • Parent commitment and school support are necessary components to ensure a child’s success with a cochlear implant. Resources & Support: For Educators, Therapists, Recipients, and Families • Online: • Online chat • Click on icon • www.BionicEar.com • www.HearingJourney.com • Customer Care: • Speak with an Audiologist at 1-877-829-0026 • • Monday through Friday, 5 am to 5 pm PST Ask questions via Email: • [email protected] • [email protected] • [email protected] Education and rehabilitation are the keys to success with a cochlear implant. Visit Advanced Bionics online today at www.BionicEar.com!