Ear mould and hearing aid with open in-ear receiving device

1. An ear mould, in cooperation with a hearing aid, used for assisting positioning and sound transmission of a receiver of the hearing aid in an ear canal, comprising a head of the ear mould and a sound transmission device connected with the head of the ear mould, the sound transmission device being for connection with a speaker of the hearing aid, wherein the head of the ear mould is integrated with the sound transmission device, the end of sound transmission device which is connected with the hearing aid is elastic, the part of the sound transmission device which is connected with the head of the ear mould is flexible; and a protection component is disposed in the ear mould, the protection component is pole-shaped, a plurality of air communication holes are formed when the protection component contacts with the ear mould;

wherein the head of the ear mould comprises a front portion, a middle portion and a rear portion, the middle portion of the head of the ear mould contacts with a wall of the ear canal when the ear mould is positioned in the ear canal, the rear portion of the head of the ear mould at least partly contacts with the sound transmission device;

wherein the sound transmission device is a hearing hose, the rear portion of the head of the ear mould slidably or non-slidably contacts with a surface of the hearing hose when it is pressed by the wall of ear canal and deformed in a radial direction;

wherein the rear portion of the head of the ear module does not contact with an external surface of the hearing hose when the ear module is in non-use state and the rear portion of the head of the module is in a free state;

wherein the head of the ear module is drum-shaped and its surface is smooth, there is a space between the middle portion of the head of the ear mould and the sound transmission device;

wherein the front portion of the head of the ear mould or a portion in which the front portion of the head of the ear mould coupled with the hearing hose comprises at least one air communication hole communicated with the space;

wherein the rear portion of the head of the ear mold has a plurality of slots arranged along an outer peripheral edge that form air outlet through holes when they are deformed in the radial direction and pressed against the hearing hose.

2. An ear mould as claimed in claim 1 , wherein the protection component is at least partly positioned in the head of the ear mould.

3. An ear mould as claimed in claim 2 , wherein the head of the ear mould and the sound transmission device are made of single or composite materials, medical or non-medical grade elastic material, non-metallic or metallic elastic material.

4. An ear mould as claimed in claim 1 , wherein a thickness of the wall of the middle portion of the head of the ear mould is less than that of the wall of the front portion and the rear portion.

5. An ear mould as claimed in claim 1 , wherein a plurality of grooves is defined on the periphery the protection component, so that a plurality of air communication holes are formed when the protection component contacts with the ear mould.

6. An open in-ear sound receiver of a hearing aid, comprising an ear mould and a speaker of the hearing aid which is used in association with the ear mould, wherein the ear mould comprises a head of the ear mould and a sound transmission device connected thereto for connection with the speaker of the hearing aid, the head of the ear mould is integrated with the sound transmission device, an end of the sound transmission device which is connected to the speaker of the hearing aid is elastic, a portion in which the sound transmission device is coupled with the head of the ear mould is flexible; and a protection component is disposed in the ear mould, the protection component is pole-shaped, a plurality of air communication holes are formed when the protection component contacts with the ear mould;

wherein the head of the ear mould comprises a front portion, a middle portion and a rear portion, the middle portion of the head of the ear mould contacts with a wall of an ear canal when the ear mould is positioned in the ear canal, the rear portion of the head of the ear mould at least partly contacts with the sound transmission device;

wherein the head of the ear module is in a drum shape and its surface is smooth, the sound transmission device is a hearing hose, there is a space between the middle portion of the head of the ear mould and the sound transmission device, the rear portion of the ear module is in a non-contact state or a sliding state with an external surface of the hearing hose when the ear module is in a non-use state;

wherein the front portion of the head of the ear mould or the portion in which the front portion of the head of the ear mould is coupled with the hearing hose comprises at least one air communication hole communicated with the space; the rear portion of the head of the ear mold has a plurality of slots arranged along an outer peripheral edge that form air outlet through holes when they are deformed in a radial direction and pressed against the hearing hose.

7. An open in-ear sound receiver of hearing aid as claimed in claim 6 , wherein the head of the ear mould and the sound transmission device are made of single or composite materials, medical or non-medical grade elastic material, non-metallic or metallic elastic material.

8. An open in-ear sound receiver of hearing aid as claimed in claim 6 , wherein a plurality of grooves are defined on the periphery of the protection component, so that a plurality of air communication holes are formed when the protection component contacts with the ear mould.