The appearance of hearing aids can be divided into two categories: behind-the-ear hearing aids (BTE) and in-ear hearing aids (ITE).
1. Behind hearing aid
The behind-the-ear hearing aid is named after the hearing aid is suspended behind the auricle and includes the following three appearances:
1TraditionBTE:BTEThe hearing aid is worn on the outer ear and connected to the ear mold located in the ear canal or the ear cavity. It comes in many different sizes and has many options for connecting it to its earbuds.
2) open sound tube typeBte: with traditionalBteDifferent, open sound tube typeBteThe body is connected to the fine tube and earplugs, with the traditionalBteThe ear molds are completely different. Open tube of earplugsBteAllow air (sound) from the space to enter the ear canal directly. A hearing aid with such an earplug is called an open hearing aid.
3) built inBTE: Receiver, also known asRICThe hearing aid is placed in the ear canal and connected to the hearing aid body through a metal wire to transmit the digital (electrical signal) directly to the earpiece. This kind of hearing aid can eliminate the bad resonance effect of the sound tube, avoid the resonance effect and reduce the sound quality. In addition, this type ofBTESmaller because the receiver is not included in the fuselage.
2. In-ear hearing aid (ITE）
In-the-ear hearing aids are named after the hearing aid is placed in the ear canal. Compared with the back of the ear, the inner ear hearing aid is more subtle and more beautiful in appearance. In-ear hearing aids, often referred to as custom hearing aids, need to be tailored to the ear canal of each hearing impaired person. In addition, in-the-ear hearing aids are often used to address mild to severe hearing loss, and extremely severe hearing loss is recommended for behind-the-ear hearing aids. In-the-ear hearing aids typically include the following three appearances:
1) ear shell type: also known as hearing aids. The cochlear hearing aid is the earliest developed hearing aid. It occupies the ear cavity and the ear boat. Anatomically, it is also known as an ear hearing aid.
Its outer casing is tailored to the shape of the patient’s ear cavity. Microphones, amplifiers and headphones are placed in a custom case. No wires or hoses are required outside, and can be placed in the ear wheel, ear cavity and outer ear tube, which is more concealed and lighter.
2) ear canal type: ear canal hearing aidITCSlightly smaller than the ear type hearing aidITEIt is one of the more popular hearing aids.ITCIt can be placed deeper in the ear canal for more benefits.
For patients with the same hearing loss, useITCratioITEGet the same hearing amplification for savings5dBGain.
The hearing aid housing can be customized to the skin tone and is therefore more subtle. The volume control knob can be connected to the surface of the hearing aid for easy adjustment.
3Deep ear canal type: also known as full ear canal hearing aidCICIt is the smallest hearing aid available, and it is not easy to find even when worn from the side. It can penetrate deeper and reach or exceed the second physiological curvature of the external auditory canal, very close to the tympanic membrane, and its amplification characteristics are closer to the physiological characteristics of normal human ears.
Wear the same hearing loss and the same hearing amplification effectcicThan wearingitcCan save5To10dbGain (especially the high frequency part).
Its small size is favored by many users, but its output power is limited, only for people with mild to moderate hearing loss. It is believed that with the advancement of technology, the output power of such hearing aids will become larger and larger.
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