JP4619410B2 - Hearing aid earpiece and hearing aid - Google Patents

Description

  The present invention generally relates to hearing aids. The invention further relates to an earpiece for a hearing aid. The present invention particularly relates to a hook-type hearing aid.

  A Behind-the-ear hearing aid typically includes a housing, a tube, and an earpiece. The housing contains an electronic device, a microphone, and a small speaker, which captures sound and amplifies the sound and generates an amplified sound output signal. The tube becomes a conduit that carries the acoustic signal from the housing to the earpiece, which couples the acoustic energy from the tube in the ear canal. In use, the housing is placed partially concealed behind the outer ear. The tube or at least a portion of the tube is semi-rigid or resilient, which also serves the purpose of maintaining the hearing aid on the user's outer ear. The earpiece is adapted to the user's ear, for example by elasticity or custom fabrication, and is maintained in the meatus of the ear canal.

  EP 1448014A shows an earpiece adapted to propagate sound from outside the ear to the eardrum. The earpiece includes an elastic fiber that abuts the lower part of the concha when the earpiece is inserted into the ear canal.

  An object of the present invention is to provide a hearing aid that is easily adapted to different users.

  Another object of the present invention is to provide a hearing aid that can be easily manufactured.

  A further object of the present invention is to provide a hearing aid having good and comfortable wearing maintenance for the user.

  It is a further object of the present invention to provide a hearing aid that achieves good acoustic coupling to the user's ear canal.

  It is another object of the present invention to provide a hearing aid that is partially opened to supply sound to the user's eardrum in addition to the sound reaching the user's eardrum.

  It is a further object of the present invention to provide a hearing aid earpiece that can be easily manufactured and is easily adapted to different users and types of hearing aids.

  These and other objects are achieved in accordance with the first aspect of the invention by an earpiece as claimed in claim 1.

  The ear plug provides a comfortable partial support for the earpiece and guides the sound amplified by the hearing aid towards the user's ear canal. The support is supplemented by the contact element that is maintained in contact with the rest of the ear. According to the invention, the fixture allows adjustment of the contact elements, thereby allowing the hearing aid to be tailored to different preferences for different sized ears and ear canals or pretensions. This adjustment function adjusts the hearing aid so that it can be adapted to a wide variety of users.

  In one embodiment of the invention, the contact element may be partially oval (ellipse) shaped. The contact element is maintained (held) against the inside of the user's tragus (protrusion at the entrance to the ear canal, on the face of the ear) when the earpiece is used to hold the earpiece It may have any shape that holds it in a fixed position, for example, the contact element may be essentially circular, oval or triangular. The contact elements can be made different sizes for different sized ears.

  In another embodiment of the invention, the fixture includes a number of guideways. The number can be in the range of 1-50. These guide bars can be grooves, steps or protrusions. Further, the contact element may include a number of guide bars adapted to interact with the guide bars on the fixture. The number of guide bars can be in the range of 1-50. The guide bars can be grooves or protrusions. These guide bars allow the contact element to be rotated in a predetermined orientation with respect to the earplug so that the adjuster can be maintained in contact with the inside of the user's tragus and ear canal. It makes it possible to select a comfortable position. Furthermore, being rotatable allows the position of the contact element to be adjusted and fixed in the ears of various users.

  According to one embodiment, the fixture is provided with elastic means for enhancing the comfort of the user and improving the fit.

  According to another embodiment, the earpiece is adapted to be incrementally adjusted. Incremental adjustment allows the size to be adjusted and the size once determined by the coordinator or end user to be easily fixed.

  The adjustment is accomplished by providing a flexible beam, such as a branch or rod, having a plurality of grooves and a fastening means that selectively engages one of these grooves. Can do.

  The beam includes a pair of opposing substantially planar surfaces having a plurality of grooves disposed on the first surface. Due to these planar opposing surfaces, the beam is bent, for example, in an annular shape.

  The fixture may include a fastening means for holding the end of the beam.

  According to one embodiment, the fastening means comprises a rib and a resilient strand adapted to engage one of the plurality of grooves. This design is easy to manufacture and achieves easy adaptation and fixation.

  According to yet another embodiment, the beam comprises a plurality of grooves on both sides. Thus, for example, in combination with a retainer adapted to receive the end even if the end of the beam is inserted from either of the two sides, the beam is used for, for example, the left ear and For use in the right ear, the beam can be annular on either side. In yet another embodiment, the beam can be provided with a plurality of grooves on all surfaces, thereby achieving better fixation of the beam. These grooves can be arranged with various notch spacings in the range of 0.5 mm to 5 mm, preferably in the range of 1.5 mm to 2.5 mm.

  According to one embodiment, the earpiece comprises a body having an axis and an axial through hole, and the flexible beam is within a range of 45-90 degrees from the axis, preferably 55 from the axis. Extending from the body at an angle in the range of ~ 80 degrees. As a result, the beam partially protrudes and engages with the concha and the external auditory canal behind the user's tragus, so that the earpiece can be inserted deeply into the external auditory canal. The body can be substantially cylindrical. When the beam is flexible, the retainer is configured to simply receive the beam end when the beam end is introduced tangentially to the cylindrical body from one of the two sides. The beam is twisted by the cantilevered base end extending at an angle.

  According to one embodiment, the fitting is selected from the group consisting of polyamide, silicone, polyurethane, polytetrafluoroethylene, ethyl vinyl acetate, polyacetal, thermoplastic elastomer, polymer, elastomer and polyoxymethylene. Made by material.

  According to another embodiment, the earpiece includes an earplug that contacts the wall of the user's ear canal and guides the amplified audio signal into the user's ear canal.

  According to yet another embodiment, the earplug is adapted to support a sound conduit tube, while external sounds bypass the earplug and bypass the user. It is possible to reach the inner ear. Thereby, an unpleasant occlusion effect can be avoided. Bypassing the sound further allows a user with mild hearing impairment, for example, a user with hearing impairment only in a part of the frequency range, to directly hear a sound that can be heard without a hearing aid. , A substantial advantage.

  According to another embodiment, the earplug is adapted to fit into the ear canal, thereby making it impossible for external sounds to bypass the earplug. This may be advantageous in cases of moderate to severe hearing impairment.

  In a second aspect, the present invention provides a hearing aid according to claim 17.

  Further embodiments emerge from the dependent claims.

  Other objects, embodiments and advantages will become apparent from the detailed description section of this specification.

  The present invention will be described in more detail with reference to the accompanying drawings.

  Reference is first made to FIG. 1 where the outer ear is shown. In this figure, an ear canal 10 and a tragus 8 are shown. The outer part of the ear canal is relatively soft. FIG. 1 further shows an earring (Helix) 1, a ossicular (Fossa of Helix) 2, an antihelix (3), an antipodal (Crus Antihelix) 4, a concha (cavula) (Concha (cavuum) )) 5, Antitragus, Lobule 7, and Crus helices 9 are shown.

  Reference is now made to FIGS. 2-5, in which a hearing aid 12 having an earpiece 11 according to a first embodiment of the invention is shown. The hearing aid includes an ear-hook type housing 29 and a tube 26 that transmits sound from the housing to the earpiece 11. The tube 26 includes a first bent portion 27 and a second bent portion 28. The tube 26 is connected to the housing at one end and to the earpiece 11 at the other end.

  The earpiece is generally composed of a peg 15, an earplug 20, and a body 21. The cross section of the body can be circular, oval, rectangular or some other shape that allows sound to pass from the tube to the earplug. The earplug 20 allows sound from the surroundings to pass through the eardrum through one, two, or two or more apertures 31. The main body 21, the rim 22 and a number of spokes 23 form the hole. The peg includes a position bead 19 that engages the earplug 20 by being screwed into the through hole of the earplug.

  FIG. 5 shows a branch 13 connected to the peg 15 in a first state. The branch body has a beam-like structure protruding from the peg in a substantially radial direction. The branch is flexible and can take the form of a loop, and the outer part of the loop includes a support that abuts the user's ear when the earpiece is fitted into the ear. Become. The peg 15 has a hole 17 that allows sound to pass from the tube to the earplug. The peg 15 further comprises a retainer 18 which takes the form of a branch 13 and an eyelet. The branch body 13 has a pointed end 14. The branch 13 extends from the peg by a first cantilevered end and is screwed into the presser 18 by a pointed end at the other end. The branch body 13 is a beam having a structure having two substantially planar opposing faces each having a plurality of lateral grooves 24 arranged along the branch body 13 with a notch interval 25 of 2 mm. These grooves have a width of 1.65 mm. The length of the branch 13 from the peg to the tip end is about 44 mm.

  The branch 13 is made of a flexible elastic material such as polymer, polyether block amide, or polyamide. The retainer 18 is similarly made of a flexible elastic material such as polyamide, and has a strap that forms a tangential hole adapted to receive the end of the branch 13. Once the branch body 13 is inserted into the presser 18, the rib portion of the peg is engaged with one of the grooves so that it is biased (biased) by the elasticity of the strap and stopped. Once the branch body 13 is fixed in the presser 18, the branch body forms a loop as shown in FIG. This is called the second state of the fixture. The size of the loop varies depending on which groove 24 of the branch 13 interacts with the rib portion in the presser 18. In this way, the effective size of the loop can be adjusted to fit the user's ear appropriately. In another embodiment, the branch body 13 does not have any groove and is connected to the peg 15 by bonding. For example, the branch 13 is bonded after being fixed in the presser.

  The protruding end portion of the branch body 13 is cut out to be in the third state shown in FIG. The branch-like body 13 has a groove on any surface, and a loop can be formed on either side. In this way, the branch body 13 can be used for both the right ear and the left ear. An angle of about 60 ° is formed between the shaft 16 and the base of the branch body 13, and when the branch body 13 is fixed in the presser 18, the loop is twisted. In other embodiments of the invention, this angle may vary within a range of 45 ° to 90 °. The convex side of the loop is a contact surface 30 that contacts the concha 5, tragus 8 and external auditory canal 10.

  FIG. 8 shows a hearing aid equipped with an earpiece according to the first embodiment of the present invention. The earpiece is maintained in a fixed position by being retained by the outer surface of the branch 13 serving as the contact surface 30. The maintenance of the earplugs is achieved by the interaction between the branches 13, in particular the contact surface 30 and the inside of the tragus 8, and the interaction of the earplugs and the external ear canal 10. The two bends 27, 28 of the tube 26 also help to maintain the earplug in a fixed position within the ear.

  FIG. 9 shows a second state of the earplug having the tube 26 according to the first embodiment of the present invention, that is, a state in which the branch body forms a loop having a protruding end.

  As shown in FIG. 10, in the earpiece 36 according to the second embodiment of the present invention, the branch-like body 13 has one or more pressers 18 for fixing the tip end portion. This branch 13 has one or more spokes 32 connected to a hub 33. Once the pointed end of the branch 13 is fixed, the branch 13 has an essentially circular shape. A part of the convex side portion of the fixed branch body 13 becomes a contact surface 30 that comes into contact with the inside of both the tragus 8 and the external auditory canal 10 or both. The branch is bent more narrowly along a part of its length, and once the pointed end is fixed, it essentially becomes an ellipse (ellipse). The hub 33 has a number of notches 34.

  FIG. 11 shows a peg 37 of a second embodiment of an earpiece according to the present invention, which includes views of the peg 37 with the tube 26 viewed from two different angles and an enlarged view of the peg 37. ing. The peg 37 includes a number of protrusions 35 that match the notches 34 (see FIG. 10) of the hub 33. In this way, the contact element is rotated with respect to the hub until the contact element is in a specific orientation selected to be comfortably and properly worn and maintained behind the tragus and in the ear canal and then assembled. Thus, the selected orientation can be maintained safely.

  FIG. 12 shows three views of the tube 26, earplug 20 and earpiece 36 according to a second embodiment of the invention.

  FIG. 13 shows three views of the hearing aid with the housing 29, the tube 16 and the earpiece 36 according to the second embodiment of the invention in the use position on the ear.

  FIG. 14 shows an earpiece 38 according to a third embodiment of the present invention. The earpiece 38 includes a contact element formed of an elastic material so as to have an approximately semicircular appearance. The contact element includes a hub 39 that includes a number of notches 34.

  FIG. 15 shows a hearing aid with an earpiece 38 according to a third embodiment that is clicked on the housing 29, tube 26, earplug 20 and fitting (eg, peg 37 shown in FIG. 11). The contact elements can be made different sizes for different sized ears.

  FIG. 16 shows an earpiece 40 according to a fourth embodiment of the present invention, which includes a contact element molded from an elastic material so that it has an appearance resembling a full circle. The earpiece 40 includes a closed hub 41 that includes a number of notches that coincide with the pegs 37 (see FIG. 11).

  FIG. 17 shows how to attach the contact element to the fixture by pushing in the hub 41 and then attach the earplug 20 onto the peg 37.

  FIG. 18 shows three views of a hearing aid having a housing 29, a tube 26 and an earpiece 40 according to a fourth embodiment of the present invention in a use position on the ear.

The outer ear is seen from the side. 1 is a side view of a hearing aid according to a first embodiment of the present invention. It is a rear view of the hearing aid by 1st Example of this invention. 1 is a perspective view of a hearing aid according to a first embodiment of the present invention. The 1st state of the earpiece fixture by 1st Example of this invention is shown. The 2nd state of the earpiece fixture by 1st Example of this invention is shown. The 3rd state of the earpiece fixture by 1st Example of this invention is shown. 1 shows a hearing aid according to a first embodiment of the invention in a use position on the ear. Fig. 5 shows a tube with a fixture in a second state according to a first embodiment of the invention. Fig. 5 shows a second state of the contact element according to a second embodiment of the invention. FIG. 7 shows a partial view of a hearing aid having a fixture according to a second embodiment of the present invention. FIG. 6 shows in partial view a hearing aid having an earpiece according to a second embodiment of the invention. Fig. 3 shows a hearing aid according to a second embodiment of the invention in a use position on the ear. 6 shows a contact element according to a third embodiment of the invention. FIG. 6 shows an exploded view of a hearing aid having an earpiece according to a third embodiment of the present invention. 6 shows a contact element according to a fourth embodiment of the invention. FIG. 6 shows an exploded view of a hearing aid having an earpiece according to a fourth embodiment of the present invention. Fig. 6 shows a hearing aid with an earpiece according to a fourth embodiment of the invention in a use position on the ear.

Claims (19)

Ear plugs to be inserted into the ear canal of a user,
A loop-shaped contact element that is maintained in contact with at least one of the inner wall of the user's tragus and the inner wall of the ear canal;
Means for adjusting the size of the loop of the contact element, and a fitting for holding the earplug and the contact element together,
Earpiece for hearing aid equipped with.   The earpiece according to claim 1, wherein the contact element is partially oval shaped. The fixture has a large number of guide muscle earpiece according to 請 Motomeko 1 or 2. The contact element is provided with a number of guide muscle earpiece according to any one of 3 from 請 Motomeko 1.   The earpiece according to claim 1, wherein the means for adjusting the contact element is provided on the fixture.   The earpiece according to claim 5, wherein the fitting includes elastic means for elastically separating the earplug from the contact element.   The earpiece according to claim 5, wherein the attachment is configured such that the separation is gradually adjusted.   6. The earpiece according to claim 5, wherein the fixture comprises a flexible beam having a plurality of grooves and fastening means for selectively engaging one of the grooves.   The earpiece according to claim 8, wherein the beam has a pair of opposed substantially planar surfaces, and the plurality of grooves are arranged on a first surface of the surfaces.   The earpiece according to claim 9, wherein the beam is bent in a loop shape, and the fixture includes fastening means for holding an end of the beam.   11. An earpiece according to claim 10, wherein the fastening means comprises a rib and an elastic strand, the rib being adapted to engage one of the grooves.   The earpiece according to claim 10, wherein the beam comprises a plurality of grooves on both surfaces.   The earpiece includes a body having an axis and an axial through hole, and the flexible beam is at an angle within a range of 45 to 90 degrees from the axis, preferably within a range of 55 to 80 degrees from the axis. The earpiece of claim 8, extending from the body. Said fixture, polyamide, silicone, polyurethane, polytetrafluoroethylene, ethyl vinyl acetate, are made of polyacetal, TPE, polymeric, by a material selected from the group consisting of elastomers and polyoxymethylene,請 Motomeko The earpiece according to any one of 1 to 13 . And a earplugs in contact with the inner wall of the ear canal of a user, the earpiece according to any one of the 請 Motomeko 1 14.   The earpiece according to claim 15, wherein the earplug is configured to support a sound transmission tube and includes a hole for allowing external sound to reach the user's inner ear. With the earpiece according to any one of the 請 Motomeko 1 16, with a housing and conductive hearing tube, the hearing aid.   18. A hearing aid according to claim 17, wherein the tube is semi-rigid and is mounted on a user's outer ear to support the hearing aid.   19. A hearing aid according to claim 18, wherein the tube has a first bend attached to the user's ear and a second bend leading the tube toward the user's ear canal.

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