EP1585366A2 - Composants d'une prothèse auditive insonorisée et procédé de insonorisation correspondante - Google Patents

Composants d'une prothèse auditive insonorisée et procédé de insonorisation correspondante Download PDF

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Publication number
EP1585366A2
EP1585366A2 EP05101228A EP05101228A EP1585366A2 EP 1585366 A2 EP1585366 A2 EP 1585366A2 EP 05101228 A EP05101228 A EP 05101228A EP 05101228 A EP05101228 A EP 05101228A EP 1585366 A2 EP1585366 A2 EP 1585366A2
Authority
EP
European Patent Office
Prior art keywords
sound
hearing aid
ear
helmholtz resonators
earmold
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Withdrawn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
EP05101228A
Other languages
German (de)
English (en)
Inventor
Joachim Baumann
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.)
Sivantos GmbH
Original Assignee
Siemens Audiologische Technik 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
Application filed by Siemens Audiologische Technik GmbH filed Critical Siemens Audiologische Technik GmbH
Publication of EP1585366A2 publication Critical patent/EP1585366A2/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Withdrawn legal-status Critical Current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
    • H04R25/45—Prevention of acoustic reaction, i.e. acoustic oscillatory feedback
    • H04R25/456—Prevention of acoustic reaction, i.e. acoustic oscillatory feedback mechanically

Definitions

  • the present invention relates to an ear insert and a Sound tube for hearing aids.
  • earmolds for coupling hearing aids to the ear canal generally requires a ventilation hole to avoid inflammation of the ear canal skin, for example by moisture formation and to avoid injuries of the eardrum, for example, by overpressure or negative pressure.
  • the Ventilation hole be relatively large in diameter, so as much deep sound as possible on the natural way to the Eardrum arrives.
  • the Lumen (opening) of the ear canal only minimally reduced.
  • open earmolds have the disadvantage that the reinforced Sound coming out of the ear again and too unpleasant Can lead to feedback. This will actually be usable amplification of the hearing aid restricted.
  • the gain at the feedback frequency used.
  • an active feedback compensator the the feedback frequencies in the frequency response eliminated, integrated into the hearing aid. To this Way about 10 dB gain reserve can be obtained.
  • WO 92/21218 is also an ITE hearing aid known with Vent or ventilation hole.
  • a Helmholtz resonator is coupled to attenuate a frequency.
  • the damped frequency is u. a. by the length of the Vents and the volume in the housing determined.
  • a hearing aid with an attachment body known in the outer ear canal of the User sticks out.
  • the attachment body reduces the free volume between the earmold and the eardrum and allows additional acoustic measures for frequency response.
  • one or more resonators For example, Helmholtz resonators are arranged, which are connected to the sound channel of the neck body and an increased attenuation of selected frequency ranges cause.
  • the object of the present invention is to provide feedback with open provision of a minor hearing better to avoid.
  • a Ear insert according to claim 1 for a hearing aid with a Ventilation hole the inner wall of a sound-absorbing Material is made available.
  • the present invention to a Reduction of the radiating out of the ear high-frequency Noise content can be used without the desired sound input the medium and low frequency sound to influence negatively.
  • the reduced feedback tendency leads to this an increase in the actual usable amplification of a Hearing aid without active feedback suppression.
  • This active feedback suppression can also be done in Combination can be used with the present invention. In In any case hearing loss can be made easier with the aid of the invention be supplied open, so far only with small ventilation holes were available.
  • the sound tube according to the invention the equipped with the Helmholtz resonators, while wearing the Hearing aid in the ear canal.
  • This allows certain frequencies be steamed in the ear canal.
  • the individual Helmholtz resonators in the material can have different sizes. This makes it possible for the To dampen sound in larger frequency bands.
  • any component of a hearing aid from such a material with a plurality of Helmholtz resonators be made. Is particularly advantageous However, if those components are on the feedback path the sound are, in particular the ventilation hole an ear piece made of this material or coated with this material.
  • a sound tube which in the material of the Otoplastik or is guided through the ventilation hole of an ear insert, can be made of the sound absorbing material or with it be coated. This also contributes to the sound tube Prevention of feedback at.
  • the aforementioned ear insert can be configured as an earmold or an IdO or its housing. That's the invention especially hearing aid users.
  • a substantially hollow cylindrical Otoplasty 2 used into an ear canal 1 .
  • the eardrum 3 Between the end of the earmold 2 and the eardrum remains a certain residual volume. 4
  • a sound tube 6 is guided, the Sound from an unillustrated hearing aid to the eardrum 3 directs.
  • the Vent or vent hole 5 has for Tweeter losses typically have a diameter of at least 2 mm. Basses can thus directly through the vent 5 to Get eardrum 3. By the Vent 5, however also the high tones that led through the sound tube 6 in the ear be directed outward, making it too disturbing Feedback via the microphone of the hearing aid comes.
  • the total sound is from the sound amplified by the hearing aid and through the opening of the earmold 2 flowing in, low-frequency Sound component together.
  • Helmholtz resonators 8 On the inner wall of the earmold 2 there are openings 7 Helmholtz resonators 8. Each of these Helmholtz resonators 8 has a neck 9 and a damping volume 10. The frequency attenuated by the Helmholtz resonator 8 is, is essentially by the volume, the neck length and characterizes the opening radius of this Helmholtz resonator. On the inner wall of the earmold 2 are therefore many Helmholtz resonators of different sizes arranged, to dampen sound in a wider frequency range. The higher the number of resonators, the higher the Damping. The production of such earmold with Many Helmholtz resonators 8 can, for example, with stereolithography respectively.
  • the acoustic resonators 8 are preferably over the entire Interior wall distributed. But it can also be cheap, one Pollution area of the ventilation hole 5, in the Near the eardrum 3 is to keep clear of these resonators 8.
  • the acoustic resonators are designed in this specific case that they are in a frequency range above 1000 Hz up to 20 kHz an effective acoustic attenuation of the sound energy enable. Since the sound attenuation frequency dependent is, frequencies below the cutoff frequency of the Resonators are, virtually not damped.

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Neurosurgery (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Prostheses (AREA)
EP05101228A 2004-03-05 2005-02-18 Composants d'une prothèse auditive insonorisée et procédé de insonorisation correspondante Withdrawn EP1585366A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004010864 2004-03-05
DE102004010864A DE102004010864A1 (de) 2004-03-05 2004-03-05 Hörhilfekomponente mit Schalldämpfung und entsprechendes Dämpfungsverfahren

Publications (1)

Publication Number Publication Date
EP1585366A2 true EP1585366A2 (fr) 2005-10-12

Family

ID=34894979

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05101228A Withdrawn EP1585366A2 (fr) 2004-03-05 2005-02-18 Composants d'une prothèse auditive insonorisée et procédé de insonorisation correspondante

Country Status (3)

Country Link
US (1) US7542581B2 (fr)
EP (1) EP1585366A2 (fr)
DE (1) DE102004010864A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5849509B2 (ja) * 2010-08-17 2016-01-27 ヤマハ株式会社 音響装置および音響装置群
EP2663096A1 (fr) * 2012-05-07 2013-11-13 Starkey Laboratories, Inc. Procédé de chargement acoustique du récepteur d'un dispositif d'aide auditive
US11246755B2 (en) 2017-11-17 2022-02-15 Microsonic, Inc. Sound attenuation earplug system and method of manufacture
WO2024024412A1 (fr) * 2022-07-26 2024-02-01 ソニーグループ株式会社 Dispositif de traitement audio, procédé de traitement d'informations et écouteur

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2657716B1 (fr) * 1990-02-01 1995-07-13 Leher Francois Dispositif de transmission du son a filtrage selectif, destine a etre mis en place dans le conduit auditif externe.
US5195139A (en) * 1991-05-15 1993-03-16 Ensoniq Corporation Hearing aid
DE19943809A1 (de) * 1999-09-14 2001-03-15 Acousticon Hoersyteme Gmbh Hörgerät
DE10204894A1 (de) * 2002-02-06 2003-08-21 Siemens Audiologische Technik Im Ohr tragbares Hörhilfegerät oder Hörhilfegerät mit im Ohr tragbarer Otoplastik

Also Published As

Publication number Publication date
US7542581B2 (en) 2009-06-02
US20050196004A1 (en) 2005-09-08
DE102004010864A1 (de) 2005-09-29

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