- Definition and basic principles of hearing aids
Hearing aid is a kind of sophisticated electro-acoustic amplification processor, which is mainly used to help the hearing impaired people to improve their hearing and quality of life. The basic principle is that the microphone converts the sound signal into an electrical signal, which is amplified by an amplifier and then transmitted to the human ear by a transmitter that reduces the electrical signal to an acoustic signal. - Types and characteristics of hearing aids
Hearing aids can be categorized into air-conduction hearing aids and bone-conduction hearing aids according to the mode of conduction.
Air-conduction hearing aids: the sound is introduced into the ear through the speaker, which is categorized into behind-the-ear type, in-the-ear type and ear canal type. Behind-the-ear hearing aids are more versatile, while in-the-ear hearing aids are more discreet.
Bone conduction hearing aids: spread the sound through the vibration of bone vibrators, suitable for patients with middle ear or outer ear damage.
- Hearing aids for people and selection recommendations
Hearing aids are suitable for patients with an average hearing loss of ≥40dB that cannot be improved by medication or surgery. When selecting hearing aids, it is necessary to choose the appropriate type according to the degree of hearing loss, life needs and the shape of the ear canal, for example, complete ear canal hearing aids are suitable for users who pursue concealment. - Hearing aid use and acclimatization training
The first time you wear a hearing aid, you need to carry on the adaptive training:
The first week: quiet environment, wearing 2 hours a day.
Week 2: Relatively quiet environment, 4 hours a day.
Week 3: Public, 6 hours per day.
Week 4: Normal wear for 8 hours to adapt to daily life.
- Hearing aid maintenance and precautions
Waterproof and moisture-proof: Avoid wearing in the shower, hair washing or rainy days.
Regular cleaning: Keep the microphone and the transmitter clean to prevent clogging.
Battery replacement: Check the battery level regularly and replace it in time.
With the above knowledge, users can have a more comprehensive understanding of hearing aids, so as to make a more scientific choice and use.
