JP6206850B2 - Ear plugs for ear hole type hearing aids - Google Patents

Description

  The present invention relates to an earplug used for an ear hole type hearing aid.

  The ear tip of a conventional ear hole type hearing aid was a two-stage shade type (this is called a double tip ear plug) connected to the tip of the sound hole mouth of the hearing aid. This double-tip earplug is called “howling” and is provided to prevent unwanted noise generated during use of the hearing aid. This device structure has been inherited as a general one. This double tip earplug was in direct contact with the ear canal, preventing air gaps and howling. However, although it was a device that doubled the air gap, it seems that it was unable to prevent howling.

  It seems that it was a little impossible to deal with the circular eartip plugs that deal with the shape of the external auditory canal that was close to a circle. A large shade-shaped air gap at the back was prevented by a small shade at the tip, but it seems that a gap is always generated because of the clear circular eartip. For that reason, it is speculated that howling occurred.

  While the sound of hearing aids has improved year by year, howling measures that hold the key have not progressed slowly. There is always a problem with howling measures. In this area, I thought I had to think about an eartip that didn't cause howling. The conventional double tip earplug eartip cannot prevent howling. I thought I had to make an eartip that wouldn't be completely howling.

(1) To consider the structure of the eartip accessory part of a hearing aid that does not cause howling completely.
(2) Make sure that the eartips of the hearing aid do not stick to the earwax.

  First, the item (1) will be described in detail. The eartip of the double tip earplug of the conventional product is in direct contact with the external auditory canal, but the present invention product is composed of two eartips with a polyethylene wrap having a diameter of 40.5 mm and a first annular flange. The method of not contacting the ear canal was adopted by completely covering the part and the second annular flange part from the sound hole mouth of the hearing aid. The two ear tips are composed of a first annular flange portion and a second annular flange portion, and are formed by joining the two. The first annular flange portion functions as a sound path, and the second annular flange portion functions as a howling prevention in addition to the sound path function. The polyethylene wrap used was usually used in home kitchens. As a result, polyethylene wraps cling to these two annular flanges, further eliminating air gaps, and howling does not occur completely. This state does not change even for a long time. The sound is transmitted clearly to the eardrum. The polyethylene wrap is preferably thinner and softer than hard. Make good adjustments by looking in the mirror so that the polyethylene wrap does not protrude from the ear shell when it is attached to the hearing aid. As for the howling prevention band, the conventional product was in the double tip earplug at the front part of the ear canal, but the product of the present invention was placed in the bulge having a diameter of 14 mm of the second annular flange portion. The vicinity of the ear canal entrance is close to the most circular shape in the ear canal, and the second annular flange portion is also circular. The height of the second annular flange portion is about 8.5 mm.

[Fig. 2] Howling prevention zone of the conventional product (A) and the product of the present invention (B)

  The second annular flange portion for preventing howling has a shape as shown in FIG. 6 and is made of silicone rubber. As mentioned earlier, the bulge of the ring is 14 mm in diameter. This second annular flange portion serves to prevent howling in the vicinity of the ear canal entrance. As for the size of the hole of the ear canal of an adult ear, the average adult size is said to have a longitudinal major axis of 6.6 mm and a lateral minor axis of 4.5 mm. Therefore, the second annular flange portion sufficiently satisfies the air gap prevention.

  JP 2011-49628 A

A polyethylene wrap covering the first annular flange portion and the second annular flange portion related to howling prevention will be described. Cut a polyethylene wrap into a shape of a circle with a diameter of about 40.5 mm. It is necessary to make a hole in the center of the polyethylene wrap to connect directly to the hole of the hearing aid (sound hole). At that time, put a small black spot with oily magic around the center of the polyethylene wrap, and stick an adhesive tape that is 3 mm square or round from above. The adhesive tape is applied to make it easy to make a hole and to make the hole difficult to tear. When making a hole, you should first make a hole with a sewing needle, and then make a hole with a toothpick. When making a hole with a toothpick, pierce about 4 mm from the tip of the toothpick to make a hole. Not a round hole, but a hole that opens vertically. If you do not hear well, adjust the hole again with a toothpick. Also, the size of the black spot to be attached with the magic may be about 1 mm. When removing the hearing aid, such as when it is in use or when the ear is sweated and damp after use, there is no need to worry if you leave the polyethylene wrap in the ear shell. When this polyethylene wrap is used once, an unevenness is produced in the center, and the dent is on the inside. Polyethylene wrap can withstand long-term use. If the polyethylene wrap has a hole in another location, it can be replaced. Also, when putting the polyethylene wrap on the hearing aid, make sure that the sound hole and the polyethylene hole are aligned. If it does not match, it will be difficult to hear and cause feedback, so be careful.

[FIG. 8] (f) A polyethylene wrap covering the first annular flange and the second annular flange.

  There are various sounds in howling. The sound that the inventor has heard includes a sound of rubbing a piece of paper, a saw, a fan, or silver paper. When these sounds come in, the hearing becomes worse, and the sounds are audible.

  Next, prevention of two earwaxes of the eartip (2) will be described. Since the two annular flange portions are covered with polyethylene wrap, the earwax cleaning according to the present invention may be performed by removing the polyethylene wrap from the hearing aid body and wiping it with wet tissue or sterilized wet tissue. Therefore, since the hearing aid body does not have ear wax, it is always kept clean. Since there is no earwax in the dent of the sound hole at the tip of the hearing aid, there is little failure. When cleaning the ear canal of the ear canal during use, it is convenient because it can be done easily.

  The implementation of the present invention will be specifically described with reference to the drawings.

[FIG. 3] (A) is a first annular flange portion made of silicone rubber. The length of the shade is 8 mm in diameter, and the height is 7 mm from the tip including the sound pipe. This size is a reference for the first annular flange portion. The thickness of the shade is about 4 mm. These are the front view (left) and the plan view (right).

[FIG. 4] (B) is a diagram of the hearing aid body with nothing attached.

[FIG. 5] (C) is obtained by covering the sound hole opening of the hearing aid main body of (B) with the ear tip that becomes the first annular flange portion made of silicone rubber of (A).

[FIG. 6] (D) is a bowl-shaped silicone rubber ear tip to be placed on the hearing aid covered with the silicone rubber of (C). The diameter of the eartip is 14 mm, the thickness of the shade is 8.5 mm, and the length of the central shaft (sound conduit) is 7 mm. Since the second annular flange portion is in contact with the ear canal, a soft material is used. In addition, since the eartips may be pulled or stretched when joining or removing, the eartips in this case must create a space, so relatively durable silicone rubber was used. Better.

[FIG. 7] (e) is obtained by placing (ii) a bowl-shaped silicone rubber eartip on the hearing aid body covered with (c) silicone rubber.

[FIG. 8] (f) is a polyethylene wrap placed over the hearing aid of (g). Adhesive tape is put in the center, and a hole is made from there with a sewing needle and toothpick.

[FIG. 9] (G) is a finished product drawing covered with polyethylene wrap.

Effects of the invention

  Inventors who have not been able to hear ears for a long time have noticed that the present invention has improved how many times it can be heard because there is no howling in the normal hearing due to the improvement in the structure of the ear tip of the ear hole type hearing aid. Even though it has been used for a long time, no feedback has occurred. In the past, howling happened frequently and was difficult to deal with, but now it is gone. In fact, the inventor himself wears the eartip hearing aid he invented every day, but he believes that the performance has definitely improved. In this way, howling can be said to have been completely expelled. And business talks and conversations about interpersonal relationships will go smoothly, and you will feel better mentally. Also, cleaning of the earwax has been troublesome because the conventional product has a double tip earplug with earwax, but now the polyethylene wrap is put on two eartips, so the cleaning is wiped off the front side of the polyethylene wrap. Since it just ends, it became easy.

It is a junction sectional view of the 1st annular flange part eartip and the 2nd annular flange part eartip. It is the side view which displayed the howling prevention band of the conventional product (A) and the invention product (B). (This is the band display.) The form of the eartip of a 1st annular flange part is shown. The left is a front view and the right is a plan view. It is a figure of a hearing aid main body. (Side view) The figure which covered the ear tip of the 1st annular flange part on the hearing aid main part. (Side view) It is a perspective view of the eartip of a 2nd annular flange part. The ear tip of the second annular flange portion plays an important role in preventing howling. Close to the air gap near the ear canal entrance. It is the figure which covered the ear tip of the 2nd annular flange part of [Drawing 6] on the hearing aid main part of [Drawing 5]. (Side view) The figure which cut off Saran wrap in the shape of a circle. (Plan view) A hole connected to the sound hole of the hearing aid is formed in the center. This saran wrap plays an important role of further enhancing the prevention of howling together with the ear tip of the second annular flange portion of FIG. There are two types of saran wrap, hard and soft, but if possible, use the thinner soft film. The effect is extremely large. FIG. 7 is a view of the finished product obtained by putting the Saran wrap of FIG. 8 on the picture of FIG. 7. (Side view)

DESCRIPTION OF SYMBOLS 1 1st annular flange part 2 2nd annular flange part 3 Sound hole port 4 Sound conduit 5 1st annular flange part attachment part 6 Ear hole type hearing aid 7 Tegs 8 Polyethylene wrap 9 Howling prevention band position 10 Adhesive tape (Attach what you cut into squares)
11 ear canal wall

Claims (2)

A hearing prevention eartip for a hearing aid comprising a first annular flange portion and a second annular flange portion, wherein the first annular flange portion and the second annular flange portion are covered with a polyethylene wrap. Ear tips for howling prevention for hearing aids. An eartip preventing eartip for a hearing aid comprising a first annular flange portion and a second annular flange portion, wherein the first annular flange portion and the second annular flange portion are covered with a polyethylene wrap. Earpiece for preventing earwax for hearing aids.

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