Advantages and disadvantages of hearing aids-Introduction to the advantages and disadvantages of hearing aids
Deaf patients are often exposed to our lives, especially in the elderly, who need hearing aids. Hearing aids are tools, equipment, devices, and instruments that help hearing-impaired people improve their hearing impairments and improve their ability to communicate with others. Hearing aids are available in both electric and non-electric categories, the latter being abandoned. The former has two types of tubes and transistors. Transistorized hearing aids are the most dexterous and lightweight,1950It has been widely adopted after the advent of the year. In a broad sense, any device that can effectively transmit sound to the ear can be regarded as a hearing aid. In the narrow sense, the hearing aid is an electroacoustic amplifier. By amplifying the sound, the monk hears the original and cannot hear clearly. The sound of this device is a hearing aid.
The hearing aids that are often seen on the market are mainly box-type, behind-the-ear and custom-made.(In-ear, ear canal and deep ear canal). The advantages and disadvantages of common hearing aids are described below:
Behind hearing aid
Shaped like a banana curvature, after the ear, usually long4~5 cm. The mouth of the receiver is connected with a sound-hook hook made of a rigid plastic tube, and is hung on the root of the upper edge of the auricle, whereby the hook is inserted into the ear cavity and the ear canal through the soft plastic tube and the ear mold earplug, and some countries have this. Type hearing aids are the fastest growing and many manufacturers can provide30~50A variety of products of different specifications, the function is gradually increasing. Due to its excellent performance, the machine has become the most popular universal hearing aid in some countries, and its general usage rate has reached60%about.
Advantages: The shell can be made into various skin colors, and the hair is hidden behind the ear, which is often not found by outsiders, and can satisfy the psychological requirements of the deaf. The shape is relatively small, light, with a variety of grades and different functions, and there are many users.
Disadvantages: Not suitable for high-power type or for deaf-mute children with low-frequency residual hearing.
Box hearing aid
Also known as pocket or pocket. It is similar in size to a cigarette pack and is hung in a small pouch or in a pocket. The main unit is connected to the external auditory canal through a wire connection earphone.
Advantages: Large size, can be equipped with a variety of function adjustment switches, provide better acoustic performance, and easy to make high-power type to meet the needs of children with severe deafness. Used by children and the elderly, accounting for the demand5~10%. The hearing aids produced in China are mainly based on this type.5Battery(Or7Battery)Very convenient and the cheapest.
Disadvantages: The wire is long, neither beautiful nor inconvenient, the shape is too large, the use is inconvenient, and the function is less.
Glasses hearing aid
At the same time, it can meet the needs of patients with refractive errors and deafness. The old ones are microphones.(microphone), amplifier, receiver(headset), battery box and various function switches are all installed in the temples;In recent years, the end of one leg of ordinary glasses is connected with the behind-the-ear hearing aid for easy maintenance and replacement. A so-called signal cross-linked hearing aid is used for one ear, one ear, one ear, or one ear. Its purpose is mainly to help the single-eared person to receive the full sacral side of the sound stimulation for security and dialogue, glasses-type hearing aids to achieve this function is more convenient. This type of hearing aid is also best suited for bone conduction hearing aids in addition to air conduction.
Advantages: The shape is like glasses, which has a certain concealing effect on people who are not good at using the behind-the-ear hearing aids.
Comparison of advantages and disadvantages of common hearing aids
Deaf patients are often exposed to our lives, especially in the elderly, who need hearing aids. Experts at Ericcom Mall say that hearing aids are tools, equipment, devices and instruments that help hearing-impaired people improve their hearing impairments and improve their ability to communicate with others.
Hearing aids are available in both electric and non-electric categories, the latter being abandoned. The former has two types of tubes and transistors. Transistorized hearing aids are the most dexterous and lightweight,1950It has been widely adopted after the advent of the year. In a broad sense, any device that can effectively transmit sound to the ear can be regarded as a hearing aid. In the narrow sense, the hearing aid is an electroacoustic amplifier. By amplifying the sound, the monk hears the original and cannot hear clearly. The sound of this device is a hearing aid.
Customized hearing aid
Customized hearing aids are collectively referred to as “in-the-ear hearing aids”, “ear canal hearing aids” and “deep ear canal hearing aids”. The biggest feature of custom hearing aids is: tailored to the shape of each of our ears, suitable for the individual’s ears. This is more comfortable to wear and easy to wear.;Can make full use of the sound collection function of the outer ear;Less noticeable;You can answer the call in the normal way. Among them, the “deep ear canal hearing aid” has the smallest shape, and the function of collecting sound by using the outer ear is closer to our real ear, and it is hard to be found. It also has the best effect of suppressing tinnitus. But the price of custom hearing aids is relatively high – especially for “deep ear canal hearing aids”(With the same brand, the same model, and the same power, the smallest shape will have a higher price point – for “customized hearing aids”!)
Advantages: small size, good concealment; Customized according to the shape of the ear canal, comfortable to wear, will not fall; Not easy to enter the water, sweating, good for hearing aid maintenance;
Disadvantages: The processing cost is expensive, which is not conducive to large-scale promotion.
Disadvantages: glasses and hearing aids are mutually restrained, the most expensive. Other aspects of performance are poor, is a hearing aid that has been eliminated.
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