CN217591092U

CN217591092U - Auditory canal type bone conduction hearing aid

Info

Publication number: CN217591092U
Application number: CN202221698980.3U
Authority: CN
Inventors: 张美睿
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-07-04
Filing date: 2022-07-04
Publication date: 2022-10-14
Anticipated expiration: 2032-07-04

Abstract

The utility model provides a auditory canal type bone conduction hearing aid, which comprises a sound processor and a bone conduction vibrator, wherein the sound processor picks up a sound signal and converts the sound signal into vibration of the bone conduction vibrator; the bone conduction vibrator is plugged into the auditory canal and is provided with a vibration surface which is contacted with the surface of the auditory canal when being placed in the auditory canal. The utility model discloses in, because the duct is filled in to the bone conduction oscillator, vibration face and duct surface contact, and do not have subcutaneous fat in the duct, consequently, the skull in vibration face and the duct is very close, conducts the skull very easily on, sensitivity is high.

Description

Auditory canal type bone conduction hearing aid

Technical Field

The utility model relates to a audiphone field, especially a duct formula bone conduction audiphone.

Background

The hearing aid is an auxiliary hearing tool, is also a small-sized loudspeaker like an earphone, enlarges originally inaudible sound, and utilizes the residual hearing of the hearing-impaired person to enable the sound to be transmitted to the auditory center of the brain and feel the sound. Hearing aids are classified into air conduction hearing aids and bone conduction hearing aids in terms of conduction.

Air conduction hearing aids amplify sound through an air conduction path to compensate for hearing loss, while bone conduction hearing aids are devices that use the principle of skull transmitted sound to compensate for hearing. The advantages of the bone conduction hearing aid are: is not affected by hearing disorder of external ear and middle ear, and can directly act on inner ear to transmit and moderately amplify sound. Therefore, it is very popular.

Currently, a bone conduction hearing aid (earphone) generally includes a sound processor that picks up a sound signal and converts it into vibration, and a bone conduction transducer that is closely attached to a skull bone near an ear and transmits the vibration converted by the sound processor to the skull bone near the ear and directly transmits it to an inner ear through a jaw bone and a skull bone in a bone conduction manner, so that a hearing-impaired person can hear the sound.

However, in practice, since there is a layer of subcutaneous fat more or less under the skin near the ear, the sensitivity of the bone conduction hearing aid will be reduced due to the action of the subcutaneous fat, failing to meet the user's needs.

SUMMERY OF THE UTILITY MODEL

The utility model discloses when hugging closely near the skull to the biography bone conduction oscillator of present bone conduction audiphone, because near ear subcutaneous more or less has one deck subcutaneous fat, because the effect of subcutaneous fat, the sensitivity of bone conduction audiphone will reduce, can not satisfy user's needs, provides a duct formula bone conduction audiphone, duct formula bone conduction audiphone fill in the duct with the bone conduction oscillator, because only thin one deck skin has just been the skull in the duct, consequently, sensitivity is very high, satisfies the needs of hearing disorder user.

The utility model discloses realize that its technical purpose technical scheme is: an ear canal type bone conduction hearing aid comprises a sound processor and a bone conduction vibrator, wherein the sound processor picks up a sound signal and converts the sound signal into vibration of the bone conduction vibrator; the bone conduction vibrator is plugged into the auditory canal and is provided with a vibration surface which is contacted with the surface of the auditory canal when being placed in the auditory canal.

Further, in the above ear canal type bone conduction hearing aid: the sound processor is arranged in a shell and comprises a microphone for collecting sound, a processing circuit for processing sound signals collected by the microphone and a bone conduction driving module for converting the processed sound signals into vibration signals.

Further, in the above ear canal type bone conduction hearing aid: the processing circuit comprises an audio amplifying circuit, a filter circuit and a microprocessor, wherein under the control of the microprocessor, the audio amplifying circuit amplifies the sound signals collected by the microphone, and the filter circuit filters the sound signals to obtain the audio signals which enter the bone conduction driving module.

Further, in the above ear canal type bone conduction hearing aid: the bone conduction driving module is characterized by further comprising a Bluetooth module communicated with the mobile phone Bluetooth module, and the Bluetooth module demodulates signals forwarded by the mobile phone Bluetooth module to form audio signals to enter the bone conduction driving module.

Further, in the above ear canal bone conduction hearing aid: the bone conduction vibrator is detachably arranged on the shell.

The utility model discloses in, because the bone conduction oscillator fills in external auditory canal bone portion, vibration face and duct surface contact, and external auditory canal bone only has skin one deck structure, does not have subcutaneous adipose tissue, and external auditory canal bone portion is very close from cochlea inner ear structure, consequently, sensitivity is high.

Additionally, the utility model discloses can also be used to answer the cell-phone.

The present invention will be described in more detail with reference to the following embodiments.

Drawings

Fig. 1 is a structural block diagram of the ear canal type bone conduction hearing aid of the present invention;

fig. 2 is an outline view of the ear canal type bone conduction hearing aid according to embodiment 1 of the present invention;

fig. 3 is an anatomical view of the ear canal.

Detailed Description

The embodiment is an ear canal type bone conduction hearing aid or earphone, which is suitable for a person with damaged eardrum and middle ear ossicular chain or default hearing disorder and has better hearing aid effect for elderly hearing loss patients. The hearing aid can be used for communicating with a direct person, and the hearing aid or the earphone can be used for answering a mobile phone to communicate with a person through mobile phone voice, or listening to music and the like.

As shown in fig. 1, the ear canal type bone conduction hearing aid in the present embodiment includes a sound processor and a bone conduction transducer, wherein the sound processor picks up a sound signal and converts the sound signal into vibration of the bone conduction transducer; the bone conduction vibrator is plugged into the auditory canal and is provided with a vibration surface which is contacted with the surface of the auditory canal when being placed in the auditory canal.

The sound processor is arranged in a shell and comprises a microphone for collecting sound, a processing circuit for processing sound signals collected by the microphone and a bone conduction driving module for converting the processed sound signals into vibration signals. The processing circuit comprises an audio amplifying circuit, a filter circuit and a microprocessor, wherein under the control of the microprocessor, the audio amplifying circuit amplifies the sound signals collected by the microphone, and the filter circuit filters the sound signals to enable the rest of the sound signals to enter the bone conduction driving module. The bone conduction driving module is characterized by further comprising a Bluetooth module communicated with the mobile phone Bluetooth module, and the Bluetooth module demodulates signals forwarded by the mobile phone Bluetooth module to form audio signals to enter the bone conduction driving module. In this embodiment, the housing is fixed to the head with a head cover, and the bone conduction vibrator is plugged into the ear near both ears, and in the external auditory canal, the vibration surface contacts the surface of the external auditory canal, that is, contacts with the skull on the surface portion of the auditory canal, and conducts the vibration to the skull.

As shown in fig. 2, which is a structural diagram of the present embodiment, the circuit board and the battery of the sound processor are disposed in the housing 1, a hole for mounting the microphone is disposed on the casing of the housing 1, a dust screen 3 is disposed in the mounting hole, in addition, a ping-pong switch 4 is further disposed on the housing 1, the ping-pong switch 4 controls the output of the microphone to be connected to the audio amplifier circuit, or the audio signal of the bluetooth module is connected to the audio amplifier circuit, in addition, in general, a power amplifier is further disposed in the bone conduction driving module in the housing, or a regulating switch of the power amplifier can be disposed on the casing 1. In this embodiment, the bone conduction transducer 2 is an elongated object because it is inserted into the ear canal 100 as shown in fig. 3, and when the bone conduction transducer 2 is inserted into the ear canal 100, the vibration surface 5 contacts the top portion 110 of the bony part of the external auditory meatus, because the top portion 110 of the bony part of the external auditory meatus is close to the cochlea 120, the sensitivity is higher.

In this embodiment, the bone conduction vibrator may be a metal diaphragm with good elastic sound transmission, such as a memory metal, which is inserted into the bone of the external auditory canal to closely contact with the top.

Claims

1. An ear canal type bone conduction hearing aid comprises a sound processor and a bone conduction vibrator, wherein the sound processor picks up a sound signal and converts the sound signal into vibration of the bone conduction vibrator; the method is characterized in that: the bone conduction vibrator is plugged into the auditory canal and is provided with a vibration surface which is contacted with the surface of the auditory canal when being placed in the auditory canal.

2. The in-canal bone conduction hearing aid of claim 1, wherein: the sound processor is arranged in a shell and comprises a microphone for collecting sound, a processing circuit for processing sound signals collected by the microphone and a bone conduction driving module for converting the processed sound signals into vibration signals.

3. The in-canal bone conduction hearing aid of claim 2, wherein: the processing circuit comprises an audio amplifying circuit, a filter circuit and a microprocessor, wherein under the control of the microprocessor, the audio amplifying circuit amplifies the sound signals collected by the microphone, and the filter circuit filters the sound signals to enable the rest of the sound signals to enter the bone conduction driving module.

4. The in-canal bone conduction hearing aid of claim 2, wherein: the bone conduction driving module is characterized by further comprising a Bluetooth module communicated with the mobile phone Bluetooth module, and the Bluetooth module demodulates signals forwarded by the mobile phone Bluetooth module to form audio signals to enter the bone conduction driving module.

5. The in-the-canal bone conduction hearing aid according to any one of claims 2 to 4, wherein: the bone conduction vibrator is detachably arranged on the shell.