EP1257151A2 - Aide-ouie aéré - Google Patents

Aide-ouie aéré Download PDF

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Publication number
EP1257151A2
EP1257151A2 EP02010319A EP02010319A EP1257151A2 EP 1257151 A2 EP1257151 A2 EP 1257151A2 EP 02010319 A EP02010319 A EP 02010319A EP 02010319 A EP02010319 A EP 02010319A EP 1257151 A2 EP1257151 A2 EP 1257151A2
Authority
EP
European Patent Office
Prior art keywords
sound
channel
hearing aid
venting
aid according
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP02010319A
Other languages
German (de)
English (en)
Other versions
EP1257151A3 (fr
Inventor
Thomas Dr. Vossieck
Jephta J. Vossieck
Burkhard Laurenz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
EARCARE INSTITUTE DR. VOSSIECK DUESSELDORF GMBH
Original Assignee
Dr Vossieck GmbH
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 claimed from DE10154390A external-priority patent/DE10154390A1/de
Application filed by Dr Vossieck GmbH filed Critical Dr Vossieck GmbH
Publication of EP1257151A2 publication Critical patent/EP1257151A2/fr
Publication of EP1257151A3 publication Critical patent/EP1257151A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R25/00—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception
    • H04R25/65—Housing parts, e.g. shells, tips or moulds, or their manufacture
    • H04R25/652—Ear tips; Ear moulds
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R25/00—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception
    • H04R25/45—Prevention of acoustic reaction, i.e. acoustic oscillatory feedback
    • H04R25/456—Prevention of acoustic reaction, i.e. acoustic oscillatory feedback mechanically
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2460/00—Details of hearing devices, i.e. of ear- or headphones covered by H04R1/10 or H04R5/033 but not provided for in any of their subgroups, or of hearing aids covered by H04R25/00 but not provided for in any of its subgroups
    • H04R2460/11—Aspects relating to vents, e.g. shape, orientation, acoustic properties in ear tips of hearing devices to prevent occlusion

Definitions

  • the invention relates to a hearing aid with an earmold, that a sound outlet for the amplified Sound and a venting for pressure equalization.
  • Hearing aids that amplify sound pressure are essentially known in two embodiments, namely as behind devices worn or worn in the ear.
  • FIG. 1 shows an example of a schematic illustration a so-called behind-the-ear hearing aid or BTE hearing aid 10.
  • the BTE device 10 has one worn behind the ear Housing part 12 in which the for the hearing aid necessary components to amplify the sound are.
  • the for the hearing aid necessary components to amplify the sound are.
  • Fig. 1 are shown schematically on the outside of the housing 12 the reference numeral 14 together adjusting knobs, connections and indicated for these components.
  • the through the loudspeaker generates amplified sound from the Housing 12 via a sound tube 16 to a through a Opening formed sound outlet 18 passed in one in the outer auditory canal of the hearing aid wearer individually adapted and closing this earmold or an otoplastic 20 is provided.
  • FIG. 3 Shaped shell 30 shown, without inserted therein Components.
  • the shell 30 of an ITE hearing aid is fulfilled in addition to the function of housing the hearing aid components at the same time that of the otoplastic 20 of the BTE hearing aid.
  • an opening 32 of the shell 30 by a plate or not shown Faceplate covered and closed.
  • the shell 30 is analogous to the sound outlet opening 18 for the BTE hearing aid has a sound outlet hidden in FIG. 2 intended.
  • venting With standard BTE and ITE hearing aids, it is known to avoid the locking effect an additional hole in close to the sound outlet in the earmold of the BTE hearing aid or in the shell of the ITE hearing aid, to equalize pressure and thus also to vent the to ensure otherwise closed ear canal. A such a vent is commonly referred to as venting.
  • a venting hole in the otoplastic 20 is not shown, however, a ventilation hole is also available for BTE hearing aids common practice.
  • the locking effect can only take place with a hole size of> 1.4 mm can be reduced.
  • Big bores for example ⁇ 2 mm in diameter, cause a good remedy, but have the disadvantage that they are a high frequency gain (> 2kHz) from 20 dB to a very annoying feedback whistles, because of that Venting the amplified sound back to the hearing aid microphone can reach.
  • the present invention has the object to effectively avoid the closure effect and at the same time an annoying feedback whistle at high Prevent frequencies.
  • venting should be easy to clean and the ventilation effect is retained.
  • Hearing aid with a venting in which the venting has a frequency-dependent sound attenuation element. This creates the possibility of frequency-dependent To coordinate the properties of the venting in such a way that it is not, for example, the aforementioned annoying feedback whistle comes.
  • the sound damping element is formed as an acoustic diaphragm, the sound reflected with high frequencies and sound with low ones Frequencies only diffracted and thus a frequency-dependent Provides damping.
  • an acoustic Cover keeps ventilation and is also simple to clean.
  • the venting a screen as a frequency-dependent sound absorption element have the sound pass with longer wavelengths leaves and dampens high-frequency sound.
  • the frequency-dependent damping properties optimal can be adjusted by the mesh size of the sieve, whereby but maintain the ventilation effect of venting and a quick contamination of the venting is avoided becomes.
  • a venting with a frequency-dependent foam damping element be provided which has a large-pore foam, whose pores are interconnected.
  • Such one Foam is extremely flexible and easy in one already to integrate existing venting.
  • Embodiments of the acoustic panels constructed in such a way that this sound with low frequencies only bend and thus influence only slightly, so that this as a result, step through the acoustic panels can.
  • the acoustic diaphragms At the exit of the acoustic diaphragms is the high-frequency sound attenuated, whereas the low-frequency The acoustic panels essentially share the sound happened undamped.
  • FIGS. 3 to 8 Several exemplary embodiments are shown in FIGS. 3 to 8 shown for acoustic diaphragms that are frequency dependent Soundproofing element can be used according to the invention can.
  • the acoustic diaphragms are preferably in one shown partially in FIGS. 3 to 8 arranged to the venting channel 40.
  • the channel 40 in Fig. 2 indicated venting channel 38 for receiving the serve acoustic panels.
  • the channel 40 can be a flexible hose, for example PVC, or integral with the shell 30 or the earmold 20 be formed.
  • channel 40 in the figures with a circular Cross section is shown, in principle, many shapes and materials for this are considered, provided these meet the requirements with regard to acoustic properties and the manufacturing and processing methods correspond.
  • PVC hoses are simpler Wise and cheaper by gluing or other types of fastening to be installed in or on the earmold 20 or 30.
  • internal Feedback occurs. Such feedback can for example by a fixed, in the ear mold (Otoplastic 20 or shell 30) cast channel 40 avoided become.
  • Fig. 3 is a first embodiment of an acoustic Aperture 50 is shown schematically.
  • the acoustic panel 50 is, so to speak, a strand of a multitude of Slats 54 arranged along a slat axis 52
  • Aperture 50 essentially coincides with the slat axis 52 the central axis of the channel 40, designated 44.
  • the slats 54 are triangular, plate-shaped members trained, each symmetrically with respect to pairs the central axis 52 are arranged. With the tip At the end of the triangle, these are attached to the central axis 52. With the base side of the triangle, they point in Direction towards an outer wall 42 of the channel 40.
  • the slats are 54 essentially in a cross-sectional plane of the channel 40 and extend close to the outer wall 42. Furthermore, successive pairs of fins 54 in each case in the circumferential direction of the channel 40 offset, so that in a direction of view along the Channel axis 44 a cascaded arrangement of the plate pairs which preferably results in channel 40 over the extent the acoustic panel 50 is optically opaque. This cascading increases the effect of the frequency-dependent Sound absorption through the acoustic panel 50.
  • FIG. 4 A second embodiment for an acoustic diaphragm 60 is shown schematically in FIG. 4. Again, the acoustic aperture 60 slats 64, which, however, on the Outer wall 42 of the channel 40 arranged and connected to this are.
  • the fins 64 extend from the outer wall 42 from the inside of the channel 40 via its central axis 44 beyond.
  • Along the outer wall 42 are one Variety of the uniform, towards the Center axis 44 tapering slats 64 - again each offset in the circumferential direction of the channel 40 - attached so that as in the embodiment 3 results in a cascade arrangement, by which the channel 40 is preferably optically opaque.
  • the fins 74 are as spiral along the Outer wall 42 formed projections and protrude from the outer wall 42 of the channel 40 into this.
  • the Slats 74 each extend essentially around the Circumference of the channel 40 around. The area around the central axis 44 of the channel 40 is not in this embodiment covered by the slats 74.
  • FIG. 6 is a fourth embodiment of a acoustic aperture 80 shown, which is also integral with the channel 40 is shaped. Compliant with outer wall 42 running slats or projections 84 protrude along the Outer wall 42 in the channel 40.
  • the slats 84 extend each only a part of the circumference of the channel and are mutually offset in the circumferential direction, so that again the previously mentioned cascade arrangement results.
  • the area around the central axis 44 of the channel remains 42 free.
  • venting channel especially for the high-frequency Sound waves advantageously through the slats 74 or 84 narrowed. This can cause a disturbing feedback of the high-frequency sound component can be avoided. sound waves with low frequencies are on the slats 74 and 84 however only bowed.
  • Slats 64, 74 formed integrally with the channel 40 or 84 can be connected to channel 40 by suitable methods are produced together, for example by milling or inserting a negative mold when casting the Channel, which is then removed subsequently. As well allow modern techniques to produce a strand-like Slat arrangement, such as the 3 represents acoustic diaphragm 50.
  • Figures 7 and 8 are longitudinal in a sectional view of the channel 40 exemplary embodiments for those arranged in the channel 40 acoustic panels with different orientations shown with respect to the central axis 44 of the channel 40.
  • slats 94 are substantially perpendicular to Channel center axis 44 arranged and with the outer wall 42nd connected.
  • the fins 94 protrude over the center of the channel 40 and make it optically opaque.
  • the slats 94 have surfaces 96 which ideal for frequency-dependent reflection and diffraction the sound waves are shaped, in particular convexly curved Surfaces.
  • acoustic diaphragm 100 shown in FIG. 8 run essentially plate-shaped, from the outer wall 42 slats 104 projecting obliquely to the central axis 44 of channel 40.
  • the lamellae 104 protrude over the center of the channel 40 out, so that it is opaque.
  • a acoustic aperture also has a rod-shaped Element in the central axis of the channel. Of this rod-shaped element each extend bristle-like Elements, making a bottle-shaped brush overall Creation arises.
  • acoustic panels 90, 100 and those above Apertures described can also be used in a suitable manner Way with the features of acoustic panels 50, 60, 70 and 80 of Figures 3 to 6 can be combined. So can optimal frequency-dependent sound attenuation in venting according to the application requirements to avoid of the occlusion and the feedback effect can be achieved.
  • a sieve used in the venting as frequency-dependent Muffler considered.
  • Such meshes can use sound waves with their mesh size essentially allow longer wavelengths to pass through and Absorb high-frequency sound waves more.
  • Another embodiment, not shown in the figures for a frequency-dependent sound attenuation element has a foam material as a damping element.
  • the one for the foam damping element used is preferably large pores. It is particularly important here that the pores in the foam are interconnected, so that the low-frequency component is damped less than the high-frequency ones Sound waves.
  • the frequency-dependent sound attenuation elements can be advantageous inserted at any position in the venting for example near the venting hole, so that high-frequency sound is directed into the ear canal is reflected back, or further away from the venting hole, around pollution, for example To minimize cerumen or ear wax.
  • Soundproofing elements are also conceivable where Features of the individual exemplary embodiments advantageously with one another are combined.
  • the acoustic panels differently designed and arranged Slats that also differ can be oriented so that the desired frequency-dependent Attenuation of the sound is achieved.
  • the teaching of the present invention to the hearing care professional many practical variants for the frequency-dependent according to the invention Soundproofing element for a venting.

Landscapes

  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Neurosurgery (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Manufacturing & Machinery (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Headphones And Earphones (AREA)
EP02010319A 2001-05-08 2002-05-07 Aide-ouie aéré Withdrawn EP1257151A3 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE10122308 2001-05-08
DE10122308 2001-05-08
DE10154390A DE10154390A1 (de) 2001-05-08 2001-11-06 Hörgerät mit Venting
DE10154390 2001-11-06

Publications (2)

Publication Number Publication Date
EP1257151A2 true EP1257151A2 (fr) 2002-11-13
EP1257151A3 EP1257151A3 (fr) 2004-01-14

Family

ID=26009249

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02010319A Withdrawn EP1257151A3 (fr) 2001-05-08 2002-05-07 Aide-ouie aéré

Country Status (1)

Country Link
EP (1) EP1257151A3 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1915032A2 (fr) * 2006-10-18 2008-04-23 Siemens Audiologische Technik GmbH Appareil de correction auditive
WO2023241661A1 (fr) * 2022-06-17 2023-12-21 上海联影微电子科技有限公司 Élément acoustique, dispositif acoustique et procédé de préparation d'un élément acoustique

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3811881A1 (de) * 1987-04-13 1988-12-08 Beltone Electronics Corp Ohrschmalzschutz fuer eine hoerhilfe
US4852177A (en) * 1986-08-28 1989-07-25 Sensesonics, Inc. High fidelity earphone and hearing aid
WO1998047318A1 (fr) * 1997-04-15 1998-10-22 Tøpholm & Westermann APS Prothese auditive 'intra-conque' a effet d'occlusion reduit, procede de production et adaptateur permettant d'adapter une telle prothese a l'utilisateur
WO2001005207A2 (fr) * 2000-06-30 2001-01-25 Phonak Ag Procede de fabrication d'otoplastiques et otoplastique y relatif

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4852177A (en) * 1986-08-28 1989-07-25 Sensesonics, Inc. High fidelity earphone and hearing aid
DE3811881A1 (de) * 1987-04-13 1988-12-08 Beltone Electronics Corp Ohrschmalzschutz fuer eine hoerhilfe
WO1998047318A1 (fr) * 1997-04-15 1998-10-22 Tøpholm & Westermann APS Prothese auditive 'intra-conque' a effet d'occlusion reduit, procede de production et adaptateur permettant d'adapter une telle prothese a l'utilisateur
WO2001005207A2 (fr) * 2000-06-30 2001-01-25 Phonak Ag Procede de fabrication d'otoplastiques et otoplastique y relatif

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1915032A2 (fr) * 2006-10-18 2008-04-23 Siemens Audiologische Technik GmbH Appareil de correction auditive
EP1915032A3 (fr) * 2006-10-18 2011-04-20 Siemens Audiologische Technik GmbH Prothèse auditive
US8379895B2 (en) 2006-10-18 2013-02-19 Siemens Audiologische Technik Gmbh Hearing aid device
WO2023241661A1 (fr) * 2022-06-17 2023-12-21 上海联影微电子科技有限公司 Élément acoustique, dispositif acoustique et procédé de préparation d'un élément acoustique

Also Published As

Publication number Publication date
EP1257151A3 (fr) 2004-01-14

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