What does a hearing aid look like?

There are several commonly used hearing AIDS, none of which is the best, and each has its own advantages and disadvantages.

Behind-the-ear phone (behind-the-ear, wireless): ordinary, open and mini-open (the smallest and most beautiful behind the ear)

Customization (invisible plug): in-ear, ear canal and deep ear canal (smallest and most invisible customization)

Hearing AIDS are classified into behind-the-ear type and in-ear type (i.e. custom machine).

The styles of hearing AIDS are behind the ear, custom machine, external receiver and so on. Custom machine is made according to the size of the ear canal, which is relatively hidden. You can go to a professional hearing aid fitting center for consultation.

The appearance of hearing AIDS is generally divided into bone conduction hearing AIDS and air conduction hearing AIDS. Bone conduction hearing AIDS include hair band type, glasses type and so on. Air conduction hearing AIDS include cassette player, behind-the-ear player, open-ear player and external receiver; Custom machine has concha cavity, ear canal type, deep ear canal type and invisible deep ear canal type.

Features of behind-the-ear hearing AIDS:

The power of behind-the-ear hearing AIDS can also be great, because of its appearance, box-type hearing AIDS are almost eliminated.

Advantages: Behind-the-ear hearing AIDS can be used for hearing loss of various degrees and properties, and are widely used at present. Other hearing AIDS can also be connected, so that patients can get better listening effect when watching TV and attending classes.

Disadvantages: exposed, easy to contact with sweat.

Characteristics of in-ear invisible hearing AIDS;

In-ear hearing AIDS, ear canal hearing AIDS, deep ear canal hearing AIDS and invisible deep ear canal hearing AIDS all need to be customized according to the patient's ear shape, which is in line with the patient's psychology of "hiding hearing AIDS". Hearing AIDS are located in the auricle, the ear canal and the deep part of the ear canal, and the volume decreases in turn, but the power also decreases with the volume, which is only suitable for mild to moderate and severe hearing loss.

Advantages: beautiful and hidden, deep ear canal hearing AIDS are very popular in Europe and America recently, and there are many outstanding advantages, especially convenient to answer the phone!

Disadvantages: it is difficult for people with limited mobility to operate.

Features of open hearing AIDS:

Open hearing aid is a kind of hearing aid with external receiver, which is small and beautiful in appearance and very concealed in wearing effect. It is a kind of invisible behind-the-ear hearing aid in the true sense. The external receiver is directly placed in the ear canal, which naturally improves the sound gain and sound output, and the power is stronger, which can meet the needs of patients with severe hearing loss. A variety of external receivers, earplugs and ear molds are available.

Advantages: the unique ear canal receiver technology is smaller, smaller and more powerful than the traditional behind-the-ear receiver. Satisfies severe hearing loss, has good concealment, is comfortable to wear, and eliminates ear blocking effect.

Disadvantages: The battery life is shorter than that of traditional earphone batteries.

Features of box hearing AIDS:

The box-type hearing aid is slightly larger than the matchbox. Put it in your coat pocket and put headphones on your ears. The two are connected by a wire.

Advantages: high power, simple operation and low price, and it is suitable for people who are extremely deaf or unable to use small hearing AIDS with inconvenient hands and eyes. Disadvantages: not beautiful enough, loud noise, especially the rubbing sound of the patient's own clothes is amplified and basically eliminated.

The styles of hearing AIDS are behind the ear, custom machine, external receiver and so on. Custom machine is made according to the size of the ear canal, which is relatively hidden. You can go to a professional hearing aid fitting center for consultation.

The first part is a microphone, which is responsible for converting the input acoustic signals into electrical signals in an analog way; The second part is the input signal processor, which is responsible for converting analog signals into digital signals; The third part of the shunt device is responsible for dividing the digital signal into several signal processing channels; The fourth part is the signal processing device, which has the ability to process signals independently, flexibly and reasonably; The fifth part is an integrated device, which is responsible for combining signals from different channels into high-frequency and low-frequency parts for operation; The sixth part combines the high-frequency and low-frequency signals completed in the previous stage and outputs them digitally; The seventh part is the receiver, which is responsible for reducing the electrical signal into an acoustic signal. The above are the main functions of the hearing aid and the functions of the components.

There are behind-the-ear hearing AIDS and customized hearing AIDS, that is, in-ear hearing AIDS should be customized according to their own ear canal, including IIC, CICI, ITC and ITE. Each model is worn in the ear at a different depth, so the hearing aid must be selected according to its own hearing loss. Hearing aid is an electroacoustic amplifier, which amplifies weak sound to the intensity needed by human ears and helps hearing-impaired patients solve their hearing problems.

Hearing aid is a small speaker, which amplifies the originally inaudible sound, and then uses the residual hearing of the hearing impaired to make the sound reach the auditory pathway of the brain and feel the sound. It mainly consists of five parts: microphone, power amplifier, earphone, power supply and volume control. Hearing AIDS are divided into air conduction hearing AIDS and bone conduction hearing AIDS according to conduction modes; According to the mode of use, it is divided into box type, glasses type, hairpin type, behind-the-ear type, in-ear type, ear canal type and deep ear canal type. According to the degree of hearing loss of each person, it is suggested to go to a professional hearing aid shop for fitting, and then debug the hearing aid regularly and review it.

Box machine (basically eliminated), behind-the-ear machine, custom machine (in-ear machine).