Hearing aids are sophisticated electro acoustic devices worn behind the ears that are designed to modulate sounds through converting them to electrical signals. There are many kinds of MD hearing aid. Each one has distinct circuitry and power. Among the most popular ones in the market include the body worn, behind the ear, in the ear, in the canal and disposable aids. Each has specific benefits and drawbacks; therefore, users must only pick out the ones that are recommended by their audiologists so as not to put their lives or simply their auditory system completely at stake.
The body worn aid is the first of its kind. It was designed and created by Harvey Fletcher, an American physicist referred to as the father of stereophonic sound. Body worn aids have an ear mold and a case that are attached with a wire. The case is about the size of a playing card. It contains several electronic amplifier devices, controls and a battery.
Behind the ear aids are plastic tubes that carry sound in customized ear molds. They come in larger sizes making it easy for users to manipulate. These can last pretty much longer compared with the smaller devices. They could be integrated with directional microphones. The thing is, these are not quite easy to hide especially if the wearer has a short hair.
ITE is custom-made too. It has a a shell which perfectly fits the outer ear. It could house a volume control and a directional phone. It can be manipulated and inserted easily as well. It somehow a little bulky in the ear, though.
In the canal aids are not really noticeable for these are directly inserted into the very opening of the users' ear canal. These devices are priced not as high as ITE aids but are quite large enough for a directional phone. These can be prone to feedback.
Disposable hearing aids are those that have non-replaceable batteries. These are designed for periodic use only or on critical police investigations where wearers only use them during the operation. These are not really ideal for those with inborn hearing disorder. But having these as spare is a good idea.
Ordinary devices are regulated by the U. S. Food and Drug Administration under the first category of medical devices. Highly industrialized countries typically supply free aids by means of the healthcare programs funded by the government. Also, there are some companies that offer deeply discounted aids but consumers are encouraged not to buy anything immediately if they have still not spoken with their doctors.
People with severe condition are required to have a regular consultation with the audiologist. Necessary adjustments are often required particularly on the microphone and control system. Having done those adjustments without the right knowledge and skill will only result in the device's failure.
Buying any MD hearing aid requires a professional guidance from a doctor. The device is very insensitive that necessitates a series of tests as well as a careful consideration on critical factors before a user can get one.
The body worn aid is the first of its kind. It was designed and created by Harvey Fletcher, an American physicist referred to as the father of stereophonic sound. Body worn aids have an ear mold and a case that are attached with a wire. The case is about the size of a playing card. It contains several electronic amplifier devices, controls and a battery.
Behind the ear aids are plastic tubes that carry sound in customized ear molds. They come in larger sizes making it easy for users to manipulate. These can last pretty much longer compared with the smaller devices. They could be integrated with directional microphones. The thing is, these are not quite easy to hide especially if the wearer has a short hair.
ITE is custom-made too. It has a a shell which perfectly fits the outer ear. It could house a volume control and a directional phone. It can be manipulated and inserted easily as well. It somehow a little bulky in the ear, though.
In the canal aids are not really noticeable for these are directly inserted into the very opening of the users' ear canal. These devices are priced not as high as ITE aids but are quite large enough for a directional phone. These can be prone to feedback.
Disposable hearing aids are those that have non-replaceable batteries. These are designed for periodic use only or on critical police investigations where wearers only use them during the operation. These are not really ideal for those with inborn hearing disorder. But having these as spare is a good idea.
Ordinary devices are regulated by the U. S. Food and Drug Administration under the first category of medical devices. Highly industrialized countries typically supply free aids by means of the healthcare programs funded by the government. Also, there are some companies that offer deeply discounted aids but consumers are encouraged not to buy anything immediately if they have still not spoken with their doctors.
People with severe condition are required to have a regular consultation with the audiologist. Necessary adjustments are often required particularly on the microphone and control system. Having done those adjustments without the right knowledge and skill will only result in the device's failure.
Buying any MD hearing aid requires a professional guidance from a doctor. The device is very insensitive that necessitates a series of tests as well as a careful consideration on critical factors before a user can get one.
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