Do you have a hearing aid with your plane? Hearing problems, how to fly
At present, the aviation industry does not have restrictions on implanted organs or auxiliary medical products. Generally speaking, the impact of flying on the ear is mainly caused by the sudden change of air pressure when the aircraft rises and falls, causing negative pressure in the middle ear cavity. If not decompressed in time, it will cause secretory otitis media. Therefore, when flying, when the aircraft is going up and down, it is recommended not to wear a hearing aid to avoid pressure changes inside and outside the tympanic membrane caused by blockage of the external auditory canal. On the other hand, even people without hearing aids should chew gum, swallow action, or even pinch. Nasal suffocation, etc., to maintain pressure balance inside and outside the middle ear to avoid otitis media. In the smooth progress of the aircraft, there is no adverse effect on wearing the hearing aid. It should be noted that the noise in the cabin environment is relatively large, and it may be necessary to lower the hearing aid in a noisy environment procedure, which can be heard more clearly.
For infants and young children within six months, because the development of the eustachian tube has not yet formed, it is easy to cause negative pressure in the middle ear. Generally, it is not recommended to take an airplane. If it is necessary to fly, if the aircraft is raised and lowered, the bottle can be given permission to keep the eustachian. The tube is often open, releasing an imbalance of stress.
The change in air pressure caused by a sharp change in altitude can make the eustachian tube unable to balance the pressure inside and outside the middle ear, which may cause air pressure damage in the middle ear. The most common is aeronautical otitis media. This type of otitis media can sometimes cause transient insufficiency, even for a few days, through the acoustic impedance test can determine whether it is really deafness.
Experts say that both adults and children may have aviation otitis media when they are on the plane. This type of injury is more likely to occur in the case of inflammation of the cold and eustachian tube. But the possibility of deafness is not great, it is not a common phenomenon, parents do not have to worry.
The hearing aid sound is generated by the vibration of the object, and the object that is making the sound is called the sound source. The sound is just the movement of pressure waves through the air. The pressure wave vibrates the small bones of the inner ear (listening to the small bones). These vibrations are transformed into tiny electronic brain waves, which are the sounds we perceive. The inner ear uses the same principle as the microphone captures the sound wave or the speaker’s pronunciation. It is the relationship between the moving mechanical part and the air pressure wave. Naturally, when the pitch of the sound is low, the movement is slow and large enough, we can actually“Feel” to the pressure wave to vibrate the body.
The hearing aid is a small loudspeaker that expands the sound that could not be heard, and then uses the residual hearing of the hearing impaired to send the sound to the auditory center of the brain and feel the sound. It is mainly composed of five parts: microphone, amplifier, earphone, power supply and volume control. Hearing aids are divided into air conduction hearing aids and bone conduction hearing aids according to conduction mode; they are classified into box type, glasses type, hair clip type according to usage mode. In-ear, in-ear, ear canal, deep ear canal hearing aids.