KR101533643B1 - Easily installable microphone for implantable hearing aid - Google Patents

Easily installable microphone for implantable hearing aid Download PDF

Info

Publication number
KR101533643B1
KR101533643B1 KR1020140013228A KR20140013228A KR101533643B1 KR 101533643 B1 KR101533643 B1 KR 101533643B1 KR 1020140013228 A KR1020140013228 A KR 1020140013228A KR 20140013228 A KR20140013228 A KR 20140013228A KR 101533643 B1 KR101533643 B1 KR 101533643B1
Authority
KR
South Korea
Prior art keywords
housing
acoustic
sound
microphone
formed
Prior art date
Application number
KR1020140013228A
Other languages
Korean (ko)
Other versions
KR20140104348A (en
Inventor
조진호
이규엽
임형규
성기웅
이정현
우승탁
Original Assignee
경북대학교 산학협력단
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to KR20130017827 priority Critical
Priority to KR1020130017827 priority
Application filed by 경북대학교 산학협력단 filed Critical 경북대학교 산학협력단
Priority claimed from PCT/KR2014/001315 external-priority patent/WO2014129785A1/en
Publication of KR20140104348A publication Critical patent/KR20140104348A/en
Application granted granted Critical
Publication of KR101533643B1 publication Critical patent/KR101533643B1/en

Links

Images

Abstract

The present invention relates to a microphone for a portable hearing aid which is easy to install and includes a body including a cylindrical housing installed through the eardrum and a microphone control unit installed inside the cylindrical housing and converting a sound signal into an electric signal; A sound collector formed at one end of the body part in the direction of the ear canal, the external sound being transmitted to the inside of the body part; And a wire connection part connecting the microphone control part and the hearing aid, the wire connection part being formed at the other end of the body part in the direction of the middle ear.
The present invention is advantageous in that the microphones can be easily installed on the eardrum in a non-invasive manner than the conventional method, and sensitivity reduction of the microphone can be prevented.

Description

[0001] The present invention relates to a microphone for an implantable hearing aid,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a microphone, and more particularly, to a portable microphone for a hearing aid.

Statistics show that there are about 7 billion people in the world, and about 10% of them suffer big and small hearing loss. Of these, hearing aids that can help with hearing with general air conduction hearing aids are estimated to be about 80%, but the rest are difficult to hearing with the help of a normal hearing aid. Because most of them are due to genetic problems or hearing loss due to aging and hearing loss due to the industrial environment noise environment caused by construction or explosion sound. Even if you amplify the sound with your existing hearing aids and apply it to your ear, you can not understand the hearing impaired. Because. Among the two hearing aids used for these hearing impaired persons, the artificial inner ear converts the sound into an electrical signal to stimulate the auditory nerve of the cochlea. The other artificial heart converts the sound into mechanical vibration and amplifies it to the oschoi or inner ear canal .

All of the artificial implants that have been put to practical use and form a large market are all semi-implanted, and microphones, amplifiers, and power supplies require an extracorporeal device that is removably attached to the outside of the skin. Implantable artificial hearing aids are also commercially available from Med-El, and so far this is also a semi-implantable hearing aid. These implantable hearing aids are both semi-implanted and are exposed to the outside, so that when they wear it, everyone can recognize that they are hearing impaired. They are used in a way that they are worn when going out and separated when they go home. I feel a lot of things. This is why all implantable hearing aid users are now eager for a full implantable hearing aid that is not semi-implantable.

The most challenging technology for making a hearing aid fully portable is the implantable microphone technology to date. Many companies such as Cochlear, Med-El, and Advanced Bionics have been trying to commercialize full-implantable hearing aids until now, but they have not been put to practical use because of the degradation of implantable microphones. Hereinafter, a conventional implantable microphone and its problems will be described.

(1) Currently, Carina, a complete implantable artificial hearing aid, has been developed by Otologics, USA, and clinical trials are almost finished. However, the implantable microphone used in this hearing aid is not only a system body and a transplanting microphone, (About 5 cm in length, 2.5 cm in width, and 3 mm in depth). The problem that arises when using this type of microphone is that when a finger, clothing, pillow, etc. is touched around the skin covering the microphone installed under the temporal bone, or when a chewing movement is performed to eat food, noise is directly applied to the microphone, And the transplantation is performed under the skin, which causes a problem that the high frequency sensitivity of the microphone is lowered.

(2) The TICA hearing aids developed by Leysieffer et al. (Germany) are implantable microphones that are installed under the ear canal. However, this also reduces the sensitivity due to attenuation when the sound passes through the skin layer. In order to solve this problem, if the microphone is implanted subcutaneously under the ear canal, the microphones and subcutaneous tissues are not fixed in the long term, so that the transplanted microphone protrudes out of the skin. The TICA hearing aid has not been practically used yet. It is not.

(3) The implantable microphone proposed by Wen H. Ko can be divided into a MEMS microphone element attached to the malleus behind the eardrum, a MEMS mass-type microphone, and a capacitive microphone. The method of attaching the MEMS microphone itself to the eardrum reduces the sensitivity because the sound coming from the ear canal attenuates about 10 dB while passing through the eardrum. The MEMS mass-type microphone produces an acoustic electrical signal by measuring the acceleration displacement when the vibrator itself vibrates, but it has a problem that the gain is low at low frequency and high frequency. In addition, since the anchor is fixed to the wall of the middle ear to detect the displacement of the osseous vibrating according to the sound by the change of the capacitance, the anchor is required to be fixed to the middle ear wall.

(4) The Envoy system uses the eardrum as the diaphragm of the microphone. In this method, an anchor is formed at the end of the piezoelectric element to fix it on the wall of the middle ear. Based on this, an electroacoustic signal is obtained by obtaining a piezoelectric signal by displacement of an ossicle such as a vertebra or an ankle in response to the sound. This also requires a hole in the middle ear to fix the piezoelectric microphone. In addition, if the osseous bone is not cut, a feedback phenomenon occurs between input and output of the hearing aid, which is a very invasive method in which the osseous bone must be physically separated.

An object of the present invention is to provide an implantable microphone that is easy to operate and has high sensitivity without affecting external motion noise in an implantable hearing aid.

The problems to be solved by the present invention are not limited to the above-mentioned problems. Other technical subjects not mentioned will be apparent to those skilled in the art from the description below.

According to another aspect of the present invention, there is provided an implantable microphone including: a cylindrical housing that is installed to penetrate a eardrum; a body that is installed inside the cylindrical housing and includes a microphone controller that converts acoustic signals into electrical signals; part; A sound collector formed at one end of the body part in the direction of the ear canal, the external sound being transmitted to the inside of the body part; And a wire connection part connecting the microphone control part and the hearing aid, the wire connection part being formed at the other end of the body part in the direction of the middle ear.

According to another aspect of the present invention, there is provided an implantable microphone including: a first cylindrical housing that is installed to penetrate a eardrum; a microphone installed in the first cylindrical housing to convert an acoustic signal into an electrical signal; A body portion including a control portion, and a wire connecting portion formed at one end of the first cylindrical housing and connecting the microphone control portion and the hearing aid; And an acoustic collecting unit screwed to the other end of the first cylindrical housing and collecting external sound to transmit sound to the inside of the body.

According to an aspect of the present invention, there is provided an implantable microphone including: a body portion including a cylindrical housing that is inserted through a eardrum; A sound collector formed at one end of the body part in the direction of the ear canal, the external sound being transmitted to the inside of the body part; And an acoustic transducer formed at the other end of the body portion in the direction of the middle ear and for transmitting the acoustic signal to the microphone controller.

The present invention is advantageous in that the microphones can be easily installed on the eardrum in a non-invasive manner than the conventional method, and sensitivity reduction of the microphone can be prevented.

In addition, since a micro-microphone installed on a solid-state membrane is located at the boundary between the outside and the ear, the acoustic energy collected from the external ear can be converted into an electric signal from the microphone as it is, And thus the effect of the conventional howling can be avoided.

According to an embodiment of the present invention, the body portion having the acoustic collecting portion on the eardrum can be easily installed non-invasively.

FIG. 1 is a schematic view showing an installation of a microphone for a portable hearing aid which is easy to install according to an embodiment of the present invention,
FIG. 2 is a cross-sectional view of a microphone for a portable hearing aid which is easy to install according to an embodiment of the present invention,
FIG. 3A is a structural cross-sectional view of a microphone for a portable hearing aid which is easy to install, according to another embodiment of the present invention,
FIG. 3B is a perspective view of a microphone for a portable hearing aid which is easy to install, according to another embodiment of the present invention,
FIGS. 4A, 4B, and 5 are sectional views of a microphone for a portable hearing aid which is easy to install, according to another embodiment of the present invention,
6A and 6B are diagrams showing a configuration of a microphone for a portable hearing aid which is easy to install, according to another embodiment of the present invention,
6C is a perspective view of a microphone for a portable hearing aid which is easy to install as another embodiment of the present invention,
7 is a schematic view showing an installation of a microphone for a portable hearing aid which is easy to install as another embodiment of the present invention,
FIG. 8A is a cross-sectional view showing the structure of a microphone for a portable hearing aid which is easy to install as shown in FIG. 7,
8B is a cross-sectional view showing the structure of a microphone for a portable hearing aid which is easy to install, according to another embodiment of the present invention,
9 is a schematic view showing an installation of a microphone for a portable hearing aid which is easy to install as another embodiment of the present invention,
10A is a structural cross-sectional view of a microphone for a portable hearing aid which is easy to install as another embodiment of the present invention,
FIG. 10B is a perspective view of a microphone for a portable hearing aid which is easy to install, according to another embodiment of the present invention,
Figs. 11A and 11B are structural views of a microphone for a portable hearing aid which is easy to install, according to another embodiment of the present invention,
12 is a fragmentary view of a microphone for a portable hearing aid which is easy to install, according to another embodiment of the present invention,
FIGS. 13A and 13B are structural views of a microphone for a portable hearing aid which is easy to install, according to another embodiment of the present invention,
13C is a perspective view of a microphone for a portable hearing aid which is easy to install as another embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention, and how to accomplish it, will be described with reference to the embodiments described in detail below with reference to the accompanying drawings. However, the present invention is not limited to the embodiments described herein but may be embodied in other forms. The embodiments are provided so that those skilled in the art can easily carry out the technical idea of the present invention to those skilled in the art.

In the drawings, embodiments of the present invention are not limited to the specific forms shown and are exaggerated for clarity. Also, the same reference numerals denote the same components throughout the specification.

The expression "and / or" is used herein to mean including at least one of the elements listed before and after. Also, singular forms include plural forms unless the context clearly dictates otherwise. Also, components, steps, operations and elements referred to in the specification as " comprises "or" comprising " refer to the presence or addition of one or more other components, steps, operations, elements, and / or devices.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a schematic view showing an installation of a portable microphone for a hearing aid which is easy to install according to an embodiment of the present invention. FIG. 2 is a perspective view illustrating the structure of a microphone for a portable hearing aid which is easy to install according to an embodiment of the present invention. Sectional view.

1 and 2, an implantable microphone 10 according to an embodiment of the present invention includes a cylindrical housing 110 installed to penetrate a eardrum, and a cylindrical housing 110 installed inside the housing 110, And a microphone control unit 150 for converting the sound into a sound signal. A sound collecting part 200 formed on one side (left side in the drawing) of the front surface of the body part 100 in the direction of the ear canal, through which external sound is transmitted to the inside of the body part 100; And a wire connecting part 300 formed on the other side (right side in the drawing) of the back side of the body part 100 in the direction of the middle ear and extending from the microphone control part 150 and connected to the hearing aid.

Conventional implantable microphones have been implanted in the temporal bone or the external auditory canal, the posterior subtalar bone, and the middle ear cavity. However, the embodiment of the present invention proposes a micro-implantable microphone that can be placed on the eardrum by penetrating or transecting the eardrum and can be seated with the regenerative force of the eardrum, thereby enabling non-invasive placement of the microphone on the eardrum, We propose a high performance implantable microphone for hearing aids that can prevent damping.

That is, according to the embodiment of the present invention, a complicated device such as a screw anchor can be installed in the middle ear without any injury or incision to the skin or temporal bone of the patient, or a procedure for piercing the middle ear cavity from the temporal bone, Is a very simple and convenient type implantable microphone that can easily be transplanted in a normal operating room.

2, the implantable microphone 10 according to the embodiment of the present invention includes a cylindrical body portion 100 having a microphone element (a microphone and an integrated circuit for signal processing) A sound collecting unit 200 which is installed in the direction of the ear canal from the body 100 and collects external sounds, a lead connecting unit 300 which connects the microphone unit of the body 100 with the main part of the hearing aid through a lead, Is installed in the middle of the body part (100).

Here, the body 100 is installed across the eardrum with a very small cylindrical housing 110 (titanium container) as compared to the size of the eardrum, and an ultra-small, high-sensitivity MEMS microphone controller The microphone control unit 150 includes a MEMS converting unit 153 for converting an acoustic signal into an electric signal and a signal processing unit 155 for removing the amplification and noise of the acoustic signal, do.

As shown in FIG. 2, a pair of circular plates 210 and 310 for closing both ends of the body 100 are attached to the housing 110 at one end and at the other end, And the body part 100 between the two discs 210 and 310 is installed through the eardrum.

The sound collecting unit 200 includes a circular plate 210 in the direction of the ear canal of the body 100 and at least one acoustic passage 250 formed in the center of the circular plate 210, It is a device that collects external sound. The wire connection unit 300 connects the microphone control unit 150 installed in the housing 110 and the hearing aid through the circular plate 310 at the end of the body 100 in the direction of the middle ear and the hole formed in the circular plate 310 And a lead wire 350. That is, the lead wire 350 of the lead wire connection part 300 includes a lead wire formed of a power supply line, a signal line, a ground line, etc. in the direction of the middle ear and the microphone, It is connected to the main body.

It is preferable that the circular plates 210 and 310 of the sound collecting unit 200 and the wire connecting unit 300 are wider than the diameter of the body 100 (the housing 110). This is because the microphone body 100 according to the embodiment of the present invention can be stably mounted on the high-sound film, and the microphones can be fixed by acting as one step between the discs 210 and 310 at both ends.

That is, as shown in FIG. 1, it is preferable to drill a hole at the center of the lower part of the right or left lower part of the vertebra, and this is because the eardrum usually regenerates the eardrum after about 5 days due to its self- So that it surrounds the body part 100 and is naturally fixed.

In addition, although the device can be constantly pushed outward from the center of the eardrum by the tissue regeneration ability of the eardrum, after a long time, the place where the microphone according to the embodiment of the present invention is seated is eventually pushed to the edge of the eardrum. The microphone according to the example does not pose any problem in obtaining an electrical signal in response to the intensity of the sound.

In general, the tympanic membrane has been used with a ventilation tube of about several milligrams as a means of treating otitis media. Since the body of the present invention is made of biocompatible titanium, it is not a clinical problem in the field of medicine.

When a channel tube is installed in the eardrum, eardrum cells are grown by the restoration action of the living body, and are tightly adhered to the titanium body portion of the microphone to support the vibration of the microphone.

In addition, the wound of the passageway tube made in the center of the tympanic membrane of the tympanic membrane grows radially in the tympanic membrane and tends to push the microphone toward the wall of the middle ear wall after being pushed toward the border several months or years later. However, even if the microphone is pushed toward the wall of the middle ear and the microphone is attached to the middle ear, the implantable microphone does not sense the eardrum but senses the signal according to the vibration of the eardrum inside the implantable microphone.

FIG. 3A is a structural cross-sectional view of a microphone for a portable hearing aid microphone which is easy to install, and FIG. 3B is a perspective view of a microphone for a portable hearing aid microphone which is easy to install, according to another embodiment of the present invention. to be. 2, the sound collecting unit 200 includes a circular plate 210 and a plurality of acoustic passageways 250 (see FIG. 3) at the center of the circular plate 210, And a funnel-shaped sound collecting tube 270 extending from the acoustic path 250 in the direction of the ear canal.

3A and 3B, in the microphone according to the present embodiment, the left side of the body part 100 installed through the eardrum is toward the ear canal, the right side toward the middle ear, and the left side, And a wire connecting part 300 connected to the hearing aid on the right side of the body part 100. [ The micro-MEMS converter is housed in the body 100, and a signal processing element such as an amplifying IC for the microphone is housed in a space next to the micro-MEMS converter.

The circular plates 210 and 310 of the acoustic collecting unit 200 and the wire connecting unit 300 located on both sides of the cylindrical housing 110 of the body 100 are about 1.2 to 1.5 times larger than the diameter of the body 100 It is wide enough. When the implantable microphone according to the embodiment of the present invention is pushed into the eardrum, the eardrum tissue is aligned in the direction of the eardrum, As time goes on, the middle part is filled and the inside and outside of the eardrum are completely isolated.

Therefore, the pressure of the middle ear can be controlled by the ability of the living body to control. Also, since the hole for connecting the wire of the implantable microphone according to the embodiment of the present invention is sealed with biocompatible epoxy or the like, the pressure of the middle ear can be normally maintained. The material of the housing 110 of the body part 100 and the two disks 210 and 310 is made of a biocompatible material and the strand 350 or lead wire is also coated with a biocompatible perylene or the like desirable.

3A and 3B, the sound collecting unit 200 of the microphone according to the embodiment of the present invention differs from the embodiment of FIG. 2 in that the sound collecting unit 250 includes a funnel- 270) is formed to extend more effectively to collect sound coming in through the ear canal. The sound path can be guided from the wide area to the narrow area through the funnel-shaped sound collecting pipe 270, and the sound can be transmitted more effectively to the narrow sound path, thereby enhancing the performance.

FIGS. 4A, 4B and 5 are structural views of a microphone for a portable hearing aid which is easy to install, according to another embodiment of the present invention. 4A, 4B, and 5, the implantable microphone according to the embodiment of the present invention includes a cylindrical housing 410 installed through the eardrum, (See 150 in FIG. 2) for converting the signal into a signal, and a body portion 400 formed by a wire connecting portion (not shown in FIG. 2, not shown), which is located in the middle ear and connected to the hearing aid. And an acoustic collecting part 500 which is threaded through one end side (a tactile) of the body part 400 in the direction of the ear canal and collects external sound and transmits sound to the inside of the body part 400 . The sound collecting unit 500 has a structure in which a cylindrical housing 510 and a funnel-shaped sound collecting tube 570 having a metal diaphragm 575 formed on the front thereof are screwed together.

4A, 4B and 5, the cylindrical body 400 and the sound collecting part 500 are connected to the cylindrical housing 410 of the body part 400 and the sound collecting part 500 500) are threaded. A funnel-shaped sound collecting tube 570 is screwed to the rim of the cylindrical housing 510 of the sound collecting part 500 in the ear canal direction. That is, the end portions of one of the body portion 400 and the sound collecting portion 500 (for example, the inner ear in the drawing) are formed by disc-shaped discs 430 and 530 having a diameter larger than that of the cylindrical housings 410 and 510 A ring edge shape step for fixing the eardrum on both sides of the body part 400 and the sound collecting part 500 is formed on the outer side of the housing 410 of the body part 400, And the sound collecting part 500 is screwed. Such a detachable coupling structure is advantageous in that it is easy to install a microphone on a solid-state film, and it is easy to repair a trouble of the apparatus by separating it if necessary.

4A and 4B, the circular plate 540 is provided on the front surface of the cylindrical housing 510 coupled with the sound collecting pipe 570 in the sound collecting unit 500, At least one acoustic passageway 550 is provided in the center and a funnel-shaped acoustic collecting tube 570 is screwed into the structure to collect external sound coming through the external ear canal and transmit it to the body part 400 Lt; / RTI > 5, the housing 510 of the sound collecting part 500 is directly connected to the body part 400 (not shown) in the sound collecting tube 570 in an open structure without the disk 540 of FIGS. 4A and 4B ) In order to transmit sound.

As shown in FIGS. 4A, 4B, and 5, it is preferable that the funnel-shaped sound collecting pipe 570 is formed with a metal diaphragm 575 on the front surface thereof. This is because it is possible to prevent the microphone from being damaged by the liquid flowing when the user performs swimming or showering. Also, in addition to the way in which direct sound is transmitted through the acoustic path, a core microphone inside the body part 400 reacts by generating vibration of the metal diaphragm 575 to generate or convert electric signals to transmit sound Can be used.

Figs. 6A and 6B are structural views of an implantable microphone used in a hearing aid as another embodiment of the present invention. Fig. 6A and 6B, unlike the embodiment of FIGS. 4A, 4B, and 5, the embodiment of the present invention is different from the embodiments of FIGS. 4A, 4B, and 5 in that the sound collector 500 includes a funnel- A cylindrical housing 413 having an acoustic passage 453 in the inner part of the eardrum 400 is screwed to the cylindrical housing 410 of the body part 400. [

In this embodiment, the acoustic passage 453 of the cylindrical housing 413 constitutes a part of the acoustic collector 500. The acoustic passage 453 may be formed through the side surface of the cylindrical housing 413. A plurality of acoustic passages 453 may be formed on the side surface of the cylindrical housing 413. The sound transmitted through the ear canal is transmitted to the inside of the eardrum through the eardrum, collected into the body part 400 through the acoustic pathway 453, and transmitted to the microphone control part inside the body part 400.

This embodiment is advantageous in that the front face of the cylindrical housing 510 facing the ear canal is blocked, thereby preventing foreign substances or liquid substances from entering the outside and damaging the microphone. That is, since the sound passage 453 is formed in the opposite direction of the ear canal relative to the eardrum, i.e., inside the eardrum, and the eardrum tissue is regenerated and regenerated after eardrum transplantation of the microphone, foreign substances or liquid substances, So that it is possible to prevent the foreign matter or the liquid substance from flowing into the acoustic passage 453.

6C is a perspective view of a portable microphone used in a hearing aid as another embodiment of the present invention. 6C, the embodiment of the present invention differs from the embodiment of FIGS. 6A and 6B in that the sound collecting part 500 and the body part 400 are screwed together, The housing 410 and the disk 430 of the body part 400 are integrally formed. Such an embodiment is advantageous in that it is simple in structure and can prevent the microphone from being damaged by an external foreign substance or a liquid substance.

FIG. 7 is a schematic view showing an installation of a portable microphone for a hearing aid which is easy to install, and FIG. 8 (a) is a view showing a configuration of a microphone for a portable hearing aid Sectional view. The implantable microphone 10 shown in Figs. 7 to 8A includes a body portion 100 including a cylindrical housing 110 installed through the eardrum; An acoustic collecting part 200 formed at one side (left side in the figure) of the front surface of the body part 100 in the direction of the ear canal, through which external sound is transmitted to the inside of the body part 100; An acoustic transducer 600 which is formed on the other side (right side in the drawing) of the body 100 in the direction of the middle ear and which transmits acoustic signals to the microphone controller 150; And a microphone controller 150, which is implanted into the human body and converts the acoustic signal transmitted through the sound transmitter 600 into an electrical signal.

7 to 8A, the present embodiment differs from the first embodiment in that the microphone control unit 150 is separated from the body part 100 and the sound collecting part 200 and separated from other parts of the human body other than the eardrum (for example, And the sound signal collected in the body 100 by the sound collecting unit 200 is transmitted to the microphone controller 150 through the sound transmitter 600. The above- There is a difference. In the following description of the embodiments with reference to the drawings, redundant description of the same or corresponding components to those of the previously described embodiments may be omitted. The same reference numerals will be used for the same or corresponding components in the following drawings whenever possible.

The acoustic transducer 600 includes an acoustic transducer 620 provided in the form of a circular plate 610 for finishing an end of the cylindrical housing 110 and a tube for transmitting an acoustic signal. It is preferable that the circular plate 610 of the sound transmission portion 600 has a larger diameter than the cylindrical housing 110 of the body portion 100. [ This is for stably mounting the microphone body 100 according to the embodiment of the present invention on a high sound film and fixing the microphones by acting as a single step between the discs 210 and 610 at both ends. Like the disk 210 of the housing 110, the disk 610 of the acoustic transducer 600 may also be made of a biocompatible material. An acoustic path 250 is formed at one end of the body part 100 in the direction of the ear canal through a center part of the disc 210 of the sound collecting part 200. 8A, the acoustic path 250 is formed to have the same inner diameter as the housing 110, but may be formed to have an inner diameter smaller than that of the housing 110. [ The sound transfer tube 620 may be coated with a material such as biocompatible perylene, either on its entirety or on its outer surface.

The microphone control unit 150 may be implanted into the middle ear or middle ear inner wall. In this case, as compared with the case where the microphone control unit 150 is installed on the eardrum, it is effective to prevent damage to the microphone because it is less influenced by water, moisture, and other foreign substances introduced through the external ear canal. The microphone control unit 150 receives the sound signal transmitted through the sound transfer pipe 620 and converts the sound signal into an electric signal. The microphone control unit 150 may include a MEMS conversion unit for converting an acoustic signal into an electric signal, and a signal processing unit for removing the amplification and noise of the acoustic signal. The microphone control unit 150 may be connected to the hearing aid through a lead wire.

FIG. 8B is a cross-sectional view illustrating the structure of a microphone for a portable hearing aid which is easy to install, according to another embodiment of the present invention. 8B, a waterproof membrane 800 made of a waterproof material may be formed on the front portion of the acoustic collector 200 facing the ear canal so as to cover the acoustic passage 250. The waterproof membrane 800 may be provided in the form of a very thin membrane so that the sound collection efficiency of the sound collector 200 can be maintained at a certain level. For example, a metal diaphragm may be used as the waterproof membrane 800. The waterproof membrane 800 blocks the liquid foreign matter flowing from the outside through the external ear canal into the inside of the eardrum. Accordingly, when the user performs swimming or showering, the liquid flowing into the sound transfer pipe 620 is prevented from being lowered, and the introduced liquid flows into the microphone control unit 150 side, It is possible to prevent damage.

9 is a schematic view showing an installation of a microphone for a portable hearing aid which is easy to install as another embodiment of the present invention. Referring to FIG. 9, a waterproof member 700 is provided at one end of the acoustic collector 200 in the direction of the ear canal to prevent the water from being introduced into the eardrum or the sound transmission pipe 620 by blocking the acoustic channel 250. . The waterproof member 700 may be provided with a stopper, a cotton pad, a sponge or the like. The waterproofing member 700 can be fitted into the acoustic path 250 using a thin pin or a micro-pin or the like and removed from the acoustic path 250 for replacement with a new one.

FIG. 10A is a cross-sectional view of a microphone for a portable hearing aid which is easy to install, and FIG. 10B is a perspective view of a microphone for a portable hearing aid microphone which is easy to install, according to another embodiment of the present invention. to be. 10A and 10B, the sound collecting unit 200 of the microphone according to the embodiment of the present invention includes a sound path (not shown) for collecting sound coming through the ear canal more effectively, as in the embodiment of FIGS. 3A and 3B 250 may be provided with a structure in which a funnel-shaped sound collecting tube 270 is extended.

10A and 10B, the microphone control unit 150 is separated from the body 100 and the sound collecting unit 200 and separated from other parts of the human body (for example, inside the middle ear or middle ear) 3A and 3B in that an acoustic signal collected by the body 100 through the acoustic collector 200 is transmitted to the microphone controller 150 through the acoustic transducer 600, There is a difference.

11A, 11B, and 12 are structural views of a microphone for a portable hearing aid which is easy to install, as another embodiment of the present invention. 11A, 11B, and 12, the microphone according to the embodiment of the present invention includes a cylindrical body 410, which is installed through the eardrum, as in the embodiment of FIGS. 4A, 4B, (400); And an acoustic collecting part 500 which is threaded through one end side (a tactile) of the body part 400 in the direction of the ear canal and collects external sound and transmits sound to the inside of the body part 400 . The sound collecting unit 500 has a structure in which a cylindrical housing 510 and a funnel-shaped sound collecting tube 570 having a metal diaphragm 575 formed on the front thereof are screwed together.

11A, 11B and 12, the microphone control unit 150 is separated from the body 400 and the sound collecting unit 500 and separated from other parts of the human body (for example, inside the middle ear or middle ear 4A and 4B in that acoustic signals collected by the body part 400 by the sound collecting part 500 are transmitted to the microphone control part 150 through the sound transmitting part 600, This is different from the embodiment of Fig.

FIGS. 13A and 13B are structural views of a microphone for a portable hearing aid which is easy to install, according to another embodiment of the present invention. FIG. 13A and 13B, a microphone according to an embodiment of the present invention includes a cylindrical housing 413 in the inner part of the eardrum in the body part 400 and a body part 400 in the inner side of the eardrum, as in the embodiment of FIGS. 6A and 6B. And a sound collecting part 500 facing the ear canal is cut off and an acoustic path 453 is formed on a side surface of the housing 413. The acoustic collecting part 500 is connected to the cylindrical housing 410, Such a structure is advantageous in that it is simple in construction and can prevent the microphone from being damaged by an external foreign substance or a liquid substance.

13A and 13B, the microphone control unit 150 is separated from the body part 400 and the sound collecting part 500 and is separated from other part of the human body (for example, inside the middle ear or middle ear) 6a and 6b in that acoustic signals collected by the body part 400 by the sound collecting part 500 are transferred to the microphone control part 150 through the sound transmitting part 600, There is a difference.

13C is a perspective view of a microphone for a portable hearing aid which is easy to install as another embodiment of the present invention. The embodiment of FIG. 13C is different from the embodiment of FIG. 13C in that the sound collecting part 500 and the body part 400 are screwed to each other so that the disk 530 and the housing 413 of the sound collecting part 500 and the housing 410 and the disk 430 are integrally fabricated. In the embodiment shown in FIG. Such an embodiment is advantageous in that it is simple in structure and can prevent the microphone from being damaged by an external foreign substance or a liquid substance.

While the invention has been shown and described with respect to the specific embodiments thereof, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. Anyone with it will know easily.

Claims (20)

  1. A body portion including a cylindrical housing installed through the eardrum, and a microphone controller installed inside the cylindrical housing to convert a sound signal into an electric signal;
    A sound collector formed at one end of the body part in the direction of the ear canal, the external sound being transmitted to the inside of the body part; And
    And a lead connecting part formed at the other end of the body part in the direction of the middle ear and connecting the microphone control part and the hearing aid.
  2. The method according to claim 1,
    The microphone control unit includes:
    A converter for converting the acoustic signal into an electric signal,
    And a signal processor for amplifying the acoustic signal and removing noise of the acoustic signal.
  3. 3. The method according to claim 1 or 2,
    Wherein the sound collecting portion and the lead connecting portion have a circular plate for finishing both ends of the cylindrical housing of the body portion, and the circular plate is wider than the diameter of the cylindrical housing of the body portion.
  4. The method of claim 3,
    Wherein the original plate of the sound collecting portion is provided with at least one acoustic passage in the center thereof.
  5. The method of claim 3,
    Wherein the sound collector has at least one sound passage at its center and a funnel-shaped sound collecting tube is installed in the sound passage in the direction of the ear canal.
  6. A first cylindrical housing installed to penetrate the eardrum, a microphone control unit installed in the first cylindrical housing to convert an acoustic signal into an electric signal, and a microphone unit formed at one end of the first cylindrical housing and connected to the microphone control unit and the hearing aid A body portion including a lead wire connection portion; And
    And a sound collecting unit screwed to the other end of the first cylindrical housing and collecting external sound to transmit sound to the inside of the body.
  7. The method according to claim 6,
    The microphone control unit includes:
    A converter for converting the acoustic signal into an electric signal,
    And a signal processor for amplifying the acoustic signal and removing noise of the acoustic signal.
  8. The method according to claim 6,
    Wherein each of the body portion and the sound collecting portion has a disk larger than the diameter of the first housing of the body portion.
  9. 9. The method according to any one of claims 6 to 8,
    The acoustic collector includes a second cylindrical housing opened in an ear canal direction,
    And a metal diaphragm formed on the front surface of the second cylindrical housing in the direction of the ear canal.
  10. 9. The method of claim 8,
    The acoustic collector includes a second cylindrical housing opened in an ear canal direction,
    And a funnel-shaped sound collecting tube screwed to one end of the second cylindrical housing.
  11. 11. The method of claim 10,
    And a metal diaphragm is formed on the acoustic collection tube.
  12. A body portion including a cylindrical housing installed through the eardrum;
    A sound collector formed at one end of the body part in the direction of the ear canal, the external sound being transmitted to the inside of the body part; And
    And an acoustic transducer formed at the other end of the body in the direction of the middle ear and for transmitting an acoustic signal to a microphone controller.
  13. 13. The method of claim 12,
    Wherein the microphone control unit transduces an acoustic signal transplanted into the middle ear cavity through the acoustic transducer to an electric signal.
  14. 13. The method of claim 12,
    Wherein the acoustic transducer has a circular plate for finishing an end of the cylindrical housing, and the circular plate is wider than the diameter of the cylindrical housing of the body.
  15. 13. The method of claim 12,
    Wherein the sound collector is provided with at least one acoustic passage at its center and a funnel-shaped acoustic collecting tube is installed in the acoustic passage in the direction of the ear canal.
  16. 16. The method of claim 15,
    And a waterproof member covering the acoustic passage is formed on a front surface of the acoustic collecting unit in the direction of the ear canal.
  17. A main body including a first housing provided to be able to be implanted in a eardrum, and a microphone controller installed in the first housing to convert an acoustic signal into an electric signal; And
    And a sound collecting part including a second housing formed on the body part in an inner direction of the eardrum and at least one acoustic path formed in the second housing to transmit sound into the body part,
    Further comprising a member formed on one end side in the ear canal direction of the first housing so as to have an outer surface extending from the first housing and to block the front surface of the first housing toward the ear canal direction.
  18. A body portion including a first housing provided to be transplantable in a eardrum;
    An acoustic collector including a second housing formed on an inner side of the eardrum in the body portion and at least one acoustic passage formed in the second housing to transmit sound into the body portion; And
    And an acoustic transducer formed at an end of the second housing in an inward direction of the eardrum for transmitting an acoustic signal to a microphone controller,
    A member which is formed on one end side of the first housing in a direction of the ear canal so as to have an outer surface extending from the first housing and to block a front surface of the first housing facing the ear canal direction; And a member formed on the other end of the first housing in the inward direction of the eardrum so as to have an outer surface extending from the first housing.
  19. A body provided in the housing and provided with a microphone control unit for converting an acoustic signal into an electrical signal; And
    And a sound collecting part formed at one end of the body part, wherein the external sound is transmitted to the inside of the body part,
    Wherein the sound collecting portion includes a member having an outer surface extending from the housing at one end side of the housing.
  20. A body portion including a housing provided to be transplantable in the eardrum;
    A passage through which external sound is transmitted to the inside of the body, the sound collecting part formed at one end of the body part; And
    And an acoustic transducer formed at the other end of the body for transmitting the acoustic signal to the microphone controller,
    Wherein the sound collecting portion has a member at one end side of the housing, the member having an outer surface extending from the housing,
    Wherein the acoustic transducer comprises a member at the other end side of the housing, the member having an outer surface extending from the housing.
KR1020140013228A 2013-02-20 2014-02-05 Easily installable microphone for implantable hearing aid KR101533643B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
KR20130017827 2013-02-20
KR1020130017827 2013-02-20

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
PCT/KR2014/001315 WO2014129785A1 (en) 2013-02-20 2014-02-18 Easily-installed microphone for implantable hearing aids
US14/185,135 US9344818B2 (en) 2013-02-20 2014-02-20 Easily installable microphone for implantable hearing aid

Publications (2)

Publication Number Publication Date
KR20140104348A KR20140104348A (en) 2014-08-28
KR101533643B1 true KR101533643B1 (en) 2015-07-06

Family

ID=51748246

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020140013228A KR101533643B1 (en) 2013-02-20 2014-02-05 Easily installable microphone for implantable hearing aid

Country Status (1)

Country Link
KR (1) KR101533643B1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0548580B1 (en) * 1991-12-20 1996-03-20 Tibbetts Industries, Inc. Non-occludable transducer for in-the-ear applications
US6387039B1 (en) * 2000-02-04 2002-05-14 Ron L. Moses Implantable hearing aid
US20030220536A1 (en) * 2002-05-21 2003-11-27 Hissong James B. Apparatus and methods for directly displacing the partition between the middle ear and inner ear at an infrasonic frequency
US20090281367A1 (en) * 2008-01-09 2009-11-12 Kyungpook National University Industry-Academic Cooperation Foundation Trans-tympanic membrane transducer and implantable hearing aid system using the same

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0548580B1 (en) * 1991-12-20 1996-03-20 Tibbetts Industries, Inc. Non-occludable transducer for in-the-ear applications
US6387039B1 (en) * 2000-02-04 2002-05-14 Ron L. Moses Implantable hearing aid
US20030220536A1 (en) * 2002-05-21 2003-11-27 Hissong James B. Apparatus and methods for directly displacing the partition between the middle ear and inner ear at an infrasonic frequency
US20090281367A1 (en) * 2008-01-09 2009-11-12 Kyungpook National University Industry-Academic Cooperation Foundation Trans-tympanic membrane transducer and implantable hearing aid system using the same

Also Published As

Publication number Publication date
KR20140104348A (en) 2014-08-28

Similar Documents

Publication Publication Date Title
Lidén et al. Ten years of experience with the Swedish bone-anchored hearing system
Colletti et al. Treatment of mixed hearing losses via implantation of a vibratory transducer on the round window: Tratamiento de hipoacusias mixtas con un transductor vibratorio en la ventana redonda
US8852251B2 (en) Mechanical fixation system for a prosthetic device
AU2003294020B2 (en) Implantable hearing system
US5954628A (en) Capacitive input transducers for middle ear sensing
DK2369860T3 (en) The bone conducting devices for improving the hearing
US6005955A (en) Middle ear transducer
AU776528B2 (en) At least partially implantable hearing system for rehabilitation of a hearing disorder
US7322930B2 (en) Implantable microphone having sensitivity and frequency response
EP1522208B1 (en) Partly implanted hearing aid
FI93507C (en) The device for use in hard of hearing
US5899847A (en) Implantable middle-ear hearing assist system using piezoelectric transducer film
US5430801A (en) Hearing aid
US5707338A (en) Stapes vibrator
US20080031482A1 (en) Extended wear canal device with common microphone-battery air cavity
US6315710B1 (en) Hearing system with middle ear transducer mount
CN103874003B (en) Bone conduction hearing device with open-ear microphone
EP1191815B1 (en) At least partially implantable hearing system with direct mechanical stimulation of a lymphatic space of the internal ear
US20040133250A1 (en) Implantable medical devices with multiple transducers
EP0873668B1 (en) Implantable hearing aid
AU785210B2 (en) Totally implantable hearing system
US6387039B1 (en) Implantable hearing aid
US6726618B2 (en) Hearing aid with internal acoustic middle ear transducer
CA2256389C (en) Improved microphones for an implantable hearing aid
US6048305A (en) Apparatus and method for an open ear auditory pathway stimulator to manage tinnitus and hyperacusis

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
FPAY Annual fee payment

Payment date: 20180529

Year of fee payment: 4

FPAY Annual fee payment

Payment date: 20190529

Year of fee payment: 5