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  • hear aid Battery Technology|Shea Ear Clinic
    is necessary to develop batteries that provide high energy density flat discharge characteristics high current capability and are environmentally safe Zinc air is the ideal chemistry for this demanding environment The zinc air battery was first discovered in the early 19th century but did not find its first commercial use until the 1930s The world of zinc air today includes a variety of button cell sizes used in hearing aids including 10A 312 13 and 675 Each cell size provides the highest energy density for its size The overall size also denotes the operating range defined as milliamp hours Zinc air exhibits a long shelf life the rated storage life is more than three years The cells are packaged with an adhesive tab or seal that inhibits gas and vapor transfer resulting in the battery staying dormant until ready for use The batteries are activated once the tab is removed allowing oxygen from the air to enter the battery Nominal voltage levels are attained immediately after the tab is removed It is possible to prolong the life of the battery by re covering the air holes with the tab after each use but the benefits of this are dependent upon the environmental conditions Batteries play a crucial role in high performance hearing aids Zinc air batteries have been widely used to deliver the high demand current requirements in hearing aids since the early 1980s Because they provide up to three times the energy of other common batteries in a smaller size zinc air will continue to be the optimal choice for hearing aid makers Future hearing aids will be developed using smaller integrated circuit geometry solidifying the need for efficient low voltage high energy density batteries Zinc air is the ideal choice for today and the future Share One comment

    Original URL path: http://www.sheaclinic.com/blog/2/Hearing-Aid-Battery-Technology (2016-02-01)
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    patient will require periodic visits to an otologist to clean debris from this cavity which can be done during a clinic visit Ossicular Chain Reconstruction The middle ear houses three very small bones or ossicles called the malleus hammer the incus anvil and the stapes stirrup These bones conduct sound from the tympanic membrane ear drum to the inner ear amplifying it at the same time Sometimes the ossicles do not work properly because of disease or trauma which leads to a conductive hearing loss or loss of hearing due to lack of effective sound transmission into the inner ear This type of hearing loss can often be improved through surgery as opposed to sensorineural hearing loss nerve deafness which usually cannot When a hearing loss occurs a procedure called an ossicular chain reconstruction can help restore some or most of the hearing Ossicular chain reconstruction refers to the rebuilding of the connection from the tympanic membrane ear drum to the stapes bone This can be done as a single procedure or can be combined with a tympanoplasty and mastoidectomy By using a prosthesis artificial ear bone the connections are restored in a manner to mimic the original mechanism The prosthesis can be made of ceramic metal plastic or several different materials combined together depending on the extent of reconstruction needed In some cases of infection or cholesteatoma the ossicular reconstruction is delayed and a second look surgery is done at a later point in time to determine if the ear is healthy enough for ossicular chain reconstruction Cochlear Implantation Some patients both children and adults have hearing loss in both ears that is too severe to be helped by hearing aids Many of these patients can benefit from a cochlear implant A cochlear implant consists of two parts an internal component and an external component The internal component is surgically implanted and has an electrode that is placed into the inner ear cochlea and a receiver that is placed into a pocket under the skin behind the ear The external component is the processor and it is worn on the back of the external ear The external component picks up sound and converts it into signals that are then sent across the skin to the internal component which sends them through a wire into the inner ear cochlea The hearing nerves are connected to the cochlea and they pick up these signals and relay them to the brain where they are perceived as sound While a cochlear implant does not restore normal hearing patients who have been implanted can with time and practice understand spoken word follow conversation and hear music During the outpatient operation for cochlear implantation the surgeon makes an incision behind the ear uses a drill to remove the mastoid bone and enters the middle ear through an area called the facial recess The electrode is placed through the facial recess into an opening created in the cochlea and the receiver is then placed into a pocket under the skin on the skull behind the ear Following surgery there is a waiting period while the incision heals and swelling goes down After a few weeks the patient is seen by an audiologist who activates the cochlear implant at which time the patient will be able to hear with it Some patients hear remarkably well even on a telephone as soon as their implant is activated Others may need longer to get used to the new sound patterns they are hearing Over the next few weeks to months following activation the patient goes back to see the audiologist for additional programming sessions that will fine tune the performance of the implant Eventually the patient learns to associate the sounds with words which with time and practice will lead to natural sounding and functional speech recognition and word understanding Cochlear implantation is a true miracle of modern medicine and has profoundly changed the lives of hundreds of thousands of patients all over the world who are deaf and were formerly able to communicate only through lip reading or sign language It is approved for use in children down to one year of age in the United States and has allowed children born deaf to develop completely normal speech and language so that they are able to enter a mainstream school environment Its importance and significance in modern otology cannot be overstated The physicians at the Shea Ear Clinic will used specialized tests to determine whether you or your family member are a candidate for a cochlear implant Bone Anchored Hearing Aids BAHA Some patients both children and adults have a hearing loss that is difficult to help with hearing aids because of changes to the inner ear middle ear middle ear bones ear drum or ear canal A bone anchored hearing aid BAHA can help by bypassing the normal hearing mechanism and send the sound through the bone of the head directly to the cochlea inner ear A BAHA consists of a titanium post that is surgically placed into the bone behind the ear to which a specially designed hearing aid is attached While a BAHA does not restore normal hearing patients with a BAHA can have the benefit of hearing aids even if their inner ear middle ear middle ear bones tympanic membrane or ear canal has changed During the outpatient operation the surgeon uses a drill to place the post into the bone behind the ear through a skin incision Often some of the soft tissue under the skin is also removed to reduce problems from the post irritating the skin Following the healing process the user snaps the specially designed hearing aid onto the post and the sound travels from the hearing aid through the post and the bone into the inner ear allowing the person to hear The person can easily remove the BAHA from the post any time they like and the post can be partially covered by hair making it less noticeable

    Original URL path: http://www.sheaclinic.com/services/1/Ear-Surgeries (2016-02-01)
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  • Services
    fall slightly and extra skin seems to appear on our upper eyelid This starts to happen as early as our thirties and if left unchecked can sometimes lead to the skin of our lid touching our eyelashes Eventually this can cause difficulty in the upper field of gaze During an operation excess skin and tissue is marked injected with anesthesia and excised Stitches are then placed in such a way as to create an elegant in females upper lid crease Extra fat that can bulge especially at the inner aspect of the upper lid is also removed On lower lids as we age the fat inside the eye socket tends to fall forward creating small outpouchings on our lower lids The skin can also become wrinkled and excessive for a number of reasons ranging from heredity to sun exposure to too much laughing We treat this first by removing the excess fat Often especially in younger patients this causes the skin to tighten up on its own For other patients we may need to help the skin tighten up a little by performing a peel or laser resurfacing Certain patients however simply have too much skin on their lower lid In these cases we excise the excess skin If we need to excise skin the incision is placed just below the eyelashes and is virtually invisible If no skin is excised we usually make the incision inside the eyelid A new technique is evolving in lower lid surgery where surgeons actually reposition the fat along the bony rim just below your eye This takes fat from a bulge and places it into a crevice evening out the architecture of the lower lid This may also be done in conjunction with a resuspension of your cheek fat pad back to its more youthful position I call this entire procedure a midface lift and while it is a little more involved than an eyelift it may be performed through the same incisions The result is once again a very natural rested more youthful appearance Browlift With the passage of time our brows tend to fall and we can develop wrinkles on our forehead While we used to treat this problem surgically by making a large incision across the scalp we now have new methods using surgical telescopes called endoscopes which allow us to elevate the brow through 3 or 4 small incisions placed in the hair It is quite an elegant procedure which not only helps brow position but also helps to define the upper lid crease This operation can help make you look as if you had an upper lid blepharoplasty We can also divide some of the muscles between the eyebrows and on the forehead This can smooth the skin significantly Liposuction of the neck At Shea Ear Clinic we offer liposuction of the neck only While liposuction can be a highly effective procedure we encourage patients to also re evaluate the food issues which influence body fat and appearance

    Original URL path: http://www.sheaclinic.com/services/4/Facial-Plastic-Surgeries (2016-02-01)
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    to senior citizens These include audiometry hearing sensitivity and word understanding tympanometry middle ear compliance and reflexes electrocochleography inner ear pressure electronystagmography balance function auditory brainstem response hearing nerve function otoacoustic emissions hair cell function and posturography central adaptation The audiologist and physician team work closely to determine whether patients can hear and balance within the normal range and if not to determine the nature and degree of their impairment Using this information the physicians at the Shea Ear Clinic make recommendations and formulate a treatment plan for the patient s specific needs Latest News Shea Ear Clinic Physicians Present Research Development Posted on May 01 2013 At the American Neurotology Society Spring Meeting Dr Brian J McKinnon s team presented their latest ongoing research on the development of a novel cochlear implant thin film array electrode Continue reading Dr John Shea Donates Professional Papers to Memphis Library Posted on April 15 2013 Throughout the course of his life Dr John Shea Jr has made major historical breakthroughs and advancements in medicine Recently Shea donated 406 papers including more than 300 published articles to the Memphis Public Library s Memphis Room Continue reading read more Our Blog Hunting and Hearing

    Original URL path: http://www.sheaclinic.com/services/5/Audiology-Services (2016-02-01)
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    scan The advantages include Immediate on site diagnosis and treatment planning Lower radiation dose than conventional CT 5 10 times lower than traditional CT Fast scan times less than 20 seconds You are comfortably seated during the scan It is wheelchair accessible The open patient friendly design minimizes claustrophobia By having you sitting in a chair for only 20 seconds your Shea Ear Clinic physician can show you a picture of your ears and or sinuses on a computer while explaining your condition The next steps in your treatment plan can be agreed upon right away And the faster you begin your treatment the faster you can get relief from your symptoms We constantly strive to enhance patient care and convenience Through the intelligent use of advanced technology administered by our highly qualified staff the MiniCAT CT Scanner assists us with providing you with the patient care you deserve Latest News Shea Ear Clinic Physicians Present Research Development Posted on May 01 2013 At the American Neurotology Society Spring Meeting Dr Brian J McKinnon s team presented their latest ongoing research on the development of a novel cochlear implant thin film array electrode Continue reading Dr John Shea Donates Professional

    Original URL path: http://www.sheaclinic.com/services/13/MiniCAT-CT-Scan (2016-02-01)
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    Meniere s disease affects a part of the inner ear known as the labyrinth The labyrinth is a system of tiny fluid filled channels which send signals of sound and balance to the brain Meniere s disease causes the pressure in the labyrinth to build up disrupting both hearing and balance Vertigo is often the most troublesome symptom of Meniere s disease and is described as a sensation of movement when no movement is occurring The attacks may be incapacitating for several hours and the off balance sensation may last for days While Meniere s disease is not curable it is usually treatable and treatments are usually successful in at least mitigating the effects of the disorder A low salt diet is recommended and diuretics water pills may also be of value in controlling mild symptoms Intratymanic perfusion a therapy pioneered at the Shea Ear Clinic that involves injecting medication into the middle ear may also help This is usually performed with one or more medications including steroids streptomycin or lidocaine depending on the patient s symptoms Intratympanic perfusion with low dose streptomycin reduces the sensitivity of the hair cells balance receptors without affecting hearing The patient often has no more dizzy spells although may continue to be unsteady and the hearing may be improved and the fullness and noise in the ear may be less Latest News Shea Ear Clinic Physicians Present Research Development Posted on May 01 2013 At the American Neurotology Society Spring Meeting Dr Brian J McKinnon s team presented their latest ongoing research on the development of a novel cochlear implant thin film array electrode Continue reading Dr John Shea Donates Professional Papers to Memphis Library Posted on April 15 2013 Throughout the course of his life Dr John Shea Jr has made major historical

    Original URL path: http://www.sheaclinic.com/services/14/Menieres-Disease (2016-02-01)
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    it on are rolling over in bed looking up or bending over The problem is thought to be caused by tiny calcium particles floating freely in the fluid of the inner ear These particles become trapped in one of the balance organs and cause them to send abnormally strong or disordered messages to the brain resulting in a feeling of movement when the person is not moving Treatment of positional vertigo may include repositioning maneuvers physical therapy or other procedures depending on the severity and the disorder is often curable Latest News Shea Ear Clinic Physicians Present Research Development Posted on May 01 2013 At the American Neurotology Society Spring Meeting Dr Brian J McKinnon s team presented their latest ongoing research on the development of a novel cochlear implant thin film array electrode Continue reading Dr John Shea Donates Professional Papers to Memphis Library Posted on April 15 2013 Throughout the course of his life Dr John Shea Jr has made major historical breakthroughs and advancements in medicine Recently Shea donated 406 papers including more than 300 published articles to the Memphis Public Library s Memphis Room Continue reading read more Our Blog Hunting and Hearing Loss Posted onAugust

    Original URL path: http://www.sheaclinic.com/services/15/Positional-Vertigo (2016-02-01)
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    by the three bones In the inner ear the vibrations are converted into signals carried by the hearing nerve to the brain Abnormal bone growth around the stapes may interfere with the its ability to vibrate and transmit the sound waves and hearing loss is the result Otosclerosis may in some case also cause hearing loss of the sensorineural type nerve deafness or a combination of the conductive and sensorineural type mixed hearing loss Otosclerosis is commonly hereditary About 10 percent of the caucasian population has some form of otosclerosis however it is rare among other ethnic backgrounds Women are more likely than men to suffer from otosclerosis It is the most common cause of conductive hearing loss between the ages of 20 50 in females There are two treatments for otosclerosis a hearing aid or an operation called stapedectomy The stapedectomy was pioneered by Dr John Shea Jr here at the Shea Ear Clinic in the 1950 s It is now performed worldwide in much the same way as it has been for over 50 years The operation involves removing the disease stapes bone and replacing it with an artificial one called a prosthesis It is an outpatient operation and is highly successful at restoring hearing Latest News Shea Ear Clinic Physicians Present Research Development Posted on May 01 2013 At the American Neurotology Society Spring Meeting Dr Brian J McKinnon s team presented their latest ongoing research on the development of a novel cochlear implant thin film array electrode Continue reading Dr John Shea Donates Professional Papers to Memphis Library Posted on April 15 2013 Throughout the course of his life Dr John Shea Jr has made major historical breakthroughs and advancements in medicine Recently Shea donated 406 papers including more than 300 published articles to the Memphis

    Original URL path: http://www.sheaclinic.com/services/16/Otosclerosis (2016-02-01)
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