Which is better for the soft ear mold and hard eardrum of the hearing aid?

The advantage of the hard ear mold is that it is durable and can be used for a long time without aging. The air permeability is good, and even if the external ear canal is completely blocked, the hard ear mold has good air permeability and is relatively comfortable to wear. In addition, the hard ear mold is suitable for adult friends of various types of hearing loss. Basically, as long as it is an adult, the hard ear mold can be used with confidence. The shortcomings of the hard ear mold are: the fit to the skin is not strong, and the air permeability is better, and the sealing property is not high enough. If the hearing loss of the user is heavy, the sound given by the hearing aid will be large, resulting in a large sound. The possibility of howling is even greater. Moreover, for infants and young children, the cartilage part of the auricle is not fully formed, the ear canal and auricle parts of the child are very delicate, the children are easy to bump and play, and the hard eardrum is relatively hard, so it is easy to cause ear injury.

The advantages of the soft ear mold are: it is very soft, can change with the deformation of the auricle, does not have the extrusion friction on the auricle, and has good adhesion to the skin, so the soft ear mold is more sealed than the hard ear mold. Good, most commonly used for infants with hearing loss, adults with some severe hearing loss will also choose soft ear molds, because the sealing is good, so it can effectively prevent acoustic feedback.

In addition, the soft ear mold has the same thickness, and acoustically, it can avoid additional formants. In short, it has a positive effect on maintaining good sound quality.

The shortcomings of the soft ear mold are also very obvious. The child who just wears the hearing aid is just the stage of the development of the hand and foot movement ability. Whenever something is encountered, it will be caught, so the ear mold will be often caught because the force angle is not correct, resulting in the guidance sound. It is common for the tube to fall off or even the ear mold to crack. Some of the parents may plug in the time to save the return and repair. Most of them can be used normally, but the cracking and leakage need to be re-customized. This makes the parents very depressed.

After understanding the advantages and disadvantages of soft and hard ear molds, my suggestions for everyone are as follows:

1, Friends with moderate or severe hearing can choose soft ear mold hard ear mold according to preference;

2, otitis media, perforation of the tympanic membrane, eczema of the external auditory canal, dampness of the living city, the choice of hard ear mold according to the living environment and its own situation;

3Preschool children without the above problems, soft ear molds are recommended for severe and severe hearing loss;

4For younger children with lighter hearing, because the hearing aid’s own anti-feedback function and the gain given are not easy to cause whistling, the normal part of the earplug can be made looser and smaller, and the comfort can be slightly improved during the production. It can be fixed in the part of the ear canoe.

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