EP0466961B1 - Appareil de prothèse auditive à porter derrière l'oreille - Google Patents

Appareil de prothèse auditive à porter derrière l'oreille Download PDF

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Publication number
EP0466961B1
EP0466961B1 EP90113878A EP90113878A EP0466961B1 EP 0466961 B1 EP0466961 B1 EP 0466961B1 EP 90113878 A EP90113878 A EP 90113878A EP 90113878 A EP90113878 A EP 90113878A EP 0466961 B1 EP0466961 B1 EP 0466961B1
Authority
EP
European Patent Office
Prior art keywords
housing
hearing aid
partition
appliance according
aid appliance
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.)
Expired - Lifetime
Application number
EP90113878A
Other languages
German (de)
English (en)
Other versions
EP0466961A1 (fr
Inventor
Gerhard Büttner
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 Audioligische 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 Audioligische Technik GmbH filed Critical Siemens Audioligische Technik GmbH
Priority to EP90113878A priority Critical patent/EP0466961B1/fr
Priority to AT90113878T priority patent/ATE112922T1/de
Priority to DE59007457T priority patent/DE59007457D1/de
Priority to DK90113878.4T priority patent/DK0466961T3/da
Publication of EP0466961A1 publication Critical patent/EP0466961A1/fr
Application granted granted Critical
Publication of EP0466961B1 publication Critical patent/EP0466961B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H04R25/60—Mounting or interconnection of hearing aid parts, e.g. inside tips, housings or to ossicles
    • H04R25/604—Mounting or interconnection of hearing aid parts, e.g. inside tips, housings or to ossicles of acoustic or vibrational transducers
    • 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
    • H04R25/55—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception using an external connection, either wireless or wired
    • H04R25/554—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception using an external connection, either wireless or wired using a wireless connection, e.g. between microphone and amplifier or using Tcoils
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2225/00—Details of deaf aids covered by H04R25/00, not provided for in any of its subgroups
    • H04R2225/49—Reducing the effects of electromagnetic noise on the functioning of hearing aids, by, e.g. shielding, signal processing adaptation, selective (de)activation of electronic parts in hearing aid
    • 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
    • H04R25/00—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception
    • H04R25/60—Mounting or interconnection of hearing aid parts, e.g. inside tips, housings or to ossicles
    • H04R25/607—Mounting or interconnection of hearing aid parts, e.g. inside tips, housings or to ossicles of earhooks

Definitions

  • the invention relates to a hearing aid to be worn behind the ear with a shell-shaped housing and at least one housing chamber for the arrangement of at least one electroacoustic transducer, which is connected via an elastic connecting piece to an opening opening out of the housing.
  • a Y-shaped shielding plate is inserted into a housing shell, which divides an installation space for the microphone from an installation space for a listener and the remaining installation space of the housing against one another.
  • the installation spaces are closed by a second housing shell, the housing shells being held together by a snap connection and by screws.
  • the shielding plate is intended to protect the receiver and the microphone from disruptive magnetic field effects.
  • a BTE device consisting of three modules, namely a plate-shaped central part with recesses for receiving the components of the device and two housing shells placed on the two surfaces of the central part.
  • Sealing ribs attached to the housing shells lie directly on the surfaces of the plate-shaped middle part when the shells are put on and are intended to keep the listener's sound waves away from the microphone.
  • Sufficiently good sound insulation between the sealing ribs attached to the cover shells and the intermediate middle section, which is equipped with the structural elements, cannot be achieved in terms of production technology or can only be achieved with great difficulty.
  • the CH-A-539 375 describes a hearing aid of the type mentioned, the housing consists of two halves and the Interior is divided into chambers for receiving a receiver or a microphone or an amplifier arrangement or a battery.
  • An air inlet connection leads to the microphone chamber and the receiver chamber has a sound outlet opening, on which there is a threaded connection connection for a carrying hook with a formwork line.
  • openings for strands are provided in the wall separating the sound converter chambers from the amplifier chamber.
  • the microphone and receiver are arranged in cup-shaped rubber parts, which are supported by wart-shaped elevations on the inner walls of the chambers.
  • the air inlet connector of the microphone and the sound outlet connector of the receiver are connected with tubular elastic connecting pieces which are tied into housing openings for the sound inlet or sound outlet.
  • the second housing half is used to close the housing and the chambers.
  • the known solution is intended to suppress feedback between the electroacoustic transducers in BTE devices with an acoustic amplification between 30 and 65 dB.
  • a disadvantage of the known BTE device is that when the housing shells are joined together, a secure sealing of the transducer chambers is not achieved, since in the known housing design the shell parts manufactured in larger quantities do not seal with one another with the required accuracy with their outer and intermediate walls.
  • the object of the invention is to improve the noise suppression in hearing aids of the type described in the introduction (avoidance of feedback by structure-borne and airborne noise) in such a way that the devices with extreme amplification (up to over 80 dB) and high output sound pressure (up to 135 dB), without disadvantages for the frequency characteristics, are suitable for severe to very severe hearing loss.
  • the shielding of the electroacoustic transducer against airborne noise can be further improved in that, at least on the inside of the partition of the housing chamber, a sound-absorbing material, a seal or the like that insulates the airborne noise radiated by the transducer. is provided.
  • the bottom of the housing chamber of the converter and the cover of the housing chamber of the converter with a roughened surface or a structure in the form of ribs and / or wall reinforcements or the like. provided, it is avoided that the chamber walls are set in membrane-like vibrations during operation of the transducer.
  • the partition wall forming the side wall of the converter chamber is preferably supported by spaced-apart webs against the housing shell in which the partition wall is molded, preferably injection molded.
  • the housing chamber on the inside is wholly or partly with magnetizable soft iron sheet or the like. lined. This allows the transducer (receiver) to be encapsulated in a specially lockable chamber in a soundproof and magnetically shielded manner, so that the function of the microphone or a hearing coil of the hearing aid remains unaffected even when the amplification and the output sound pressure are extremely high.
  • the hearing aid 1 shown in FIG. 1 has a housing consisting of a first housing shell 2 and a second housing shell 3, which is shown partly broken away and forms a housing cover.
  • the shell 3 can be fastened against the shell 2 by means of screws 4.
  • a hinged flap 9 for example, which covers a group of actuating elements (not shown).
  • the receiver 13 At the opposite end there is a swiveling battery drawer 14, into which a not shown Battery for powering the electrical components of the hearing aid can be inserted.
  • a circumferential partition wall 15 is injected into the first housing shell 2 of the hearing aid 1, which is made of plastic and forms a closed side wall of a housing chamber 16, which is designed to receive the receiver 13.
  • the receiver 13 is encapsulated in the housing chamber 16 for the purpose of air and structure-borne sound insulation and for magnetic shielding.
  • the housing chamber 16 can be closed tightly by its own cover 17, the first housing shell 2 simultaneously forming the bottom 18 of the housing chamber 16.
  • the receiver 13 can e.g. be elastically supported in a rubber part 19 with side projections 20 in the chamber 16.
  • the receiver 13 carries in the area of its sound outlet connector 21 an elastic connecting piece 22 which is inserted into a bore 23 of the threaded connector 10 and is tightly glued to the threaded connector, for example. It is advantageous if the bore 23 is designed as a cone narrowing from the housing chamber 16 to the threaded section 37 of the threaded connector 10. The bond between the connector 22 and the threaded connector 10 in its bore 23 is designated by the reference numeral 24.
  • the threaded connector 10 has a section formed, for example, as a square 25, which can be inserted into the hearing aid in a rotationally secure manner through a correspondingly shaped housing opening 26, in particular in the end wall 27 of the first housing shell 2 facing the support hook 11, and a correspondingly shaped opening 28 in the partition wall 15 .
  • the square 25 has a groove 29 or the like. on, in which the lid 17 placed on the housing chamber 16 engages with a molding or into which a pin or metal web 30 can be inserted, which the closed lid 17 holds in the locking position, the metal web 30, for example, against can support the partition 15 and, if necessary, against a stop (not shown) molded onto the base 18.
  • the second housing shell 3 is placed on the equipped first housing shell 2 and, for example, screwed.
  • the shell 3 covers the lid 17 at a short distance, so that a small air gap remains free.
  • the cover 17 is e.g. provided with a peripheral edge 31, which seals against the free upper end edge of the partition 15. Furthermore, the cover 17 can be placed on the partition wall with the interposition of a seal 32 or a sealant.
  • the bottom 18 of the housing chamber 16 and in particular its cover 17 have a structure 33 on the inside of the chamber.
  • the structuring 33 can consist of a roughened surface, ribs, beads, wall reinforcements or the like. consist.
  • the housing chamber 16 has a shield for the magnetic separation of the receiver 13.
  • the inside, in particular of the partition 15, is lined with a soft iron plate 34.
  • the bottom 18 of the housing chamber for supporting the receiver 13 can also have a covering 35 made of flexible material.
  • the partition wall 15 can be supported by webs 36 against the side wall of the first housing shell 2.
  • the threaded connector 10 can be screwed into the supporting hook 11 with its threaded section 37 carrying an external thread.
  • the threaded connector 10 has a cylindrical, thread-free shoulder 38 following the threaded section 37, the diameter of which is larger than the bore of the supporting hook and the length of which is greater than the pitch of one Thread over a rotation of at least 360 °, this extension 38 forms a seal between the threaded connector and the support hook. This ensures that the end of the support hook facing the hearing device lies tightly against the shoulder 38 of the threaded connector 10 and that no airborne sound can escape through the thread grooves.
  • the square 25 of the threaded connector 10 protruding through the housing opening 26 of the shell 2 and into the opening 28 of the partition 15 forms, together with the elastic connecting piece 22 coupled to the sound output connector 21 of the receiver 13, a sealed switching line connection from the receiver 13 to the sound channel 12 of the carrying hook.
  • a fastening eyelet 39 is formed thereon according to FIG. in the area of the opening 28 of the partition 15 and in the area of the locking point of the threaded connector 10 by means of a screw 40 against an invisible fastening pin of the first housing shell 2 can be screwed.
  • This fastening point is covered by the second housing shell 3 from the outside as well as the locking of the threaded connector 10 by means of the metal web 30 and by the cover 17.
  • the cover 17 can be fastened at the same time by means of a continuous housing screw 4, so that an additional screw 40 superfluous.
  • a wire connection 41 to the amplifier arrangement 42 arranged in the housing or to the current source is provided for the power supply of the receiver 13.
  • a grommet 43 is arranged in the partition wall 15 as a leadthrough.
  • An angled section 44 of the partition 15 forms, together with the first housing shell 2, a second housing chamber 45, in which the microphone 7 is arranged.
  • the second housing chamber 45 and the housing space which receives the amplifier arrangement 42 and other hearing aid components are covered by the second housing shell 3.

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)
  • Computer Networks & Wireless Communication (AREA)
  • Headphones And Earphones (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)

Claims (18)

  1. Appareil de correction auditive (1) destiné à être porté derrière l'oreille et comportant un boîtier en forme de coque et au moins une chambre située dans le boîtier et servant à y disposer au moins un transducteur électroacoustique (13), qui est relié, par l'intermédiaire d'un élément de liaison élastique (22), à une ouverture débouchant hors du boîtier, caractérisé par le fait que dans une première coque (2) du boîtier est conformée une paroi de séparation (15), qui forme une paroi latérale circonférentielle fermée de la chambre, que la première coque du boîtier forme le fond (18) de la chambre (16) du boîtier, que la chambre du boîtier peut être fermée par un couvercle (17) pouvant être placé sur le bord frontal supérieur libre de la paroi de séparation et qu'une seconde coque (3) du boîtier, qui peut être montée sur la première coque du boîtier pour la fermeture de ce dernier, recouvre, en en étant séparée par une faible distance, le couvercle (17) de la chambre (16) du boîtier.
  2. Appareil de correction auditive suivant la revendication 1, caractérisé par le fait qu'au moins sur la face intérieure de la paroi de séparation (15) de la chambre (16) du boîtier est prévu un matériau d'atténuation acoustique ou une garniture d'étanchéité qui affaiblit le bruit émis par le transducteur et transmis par l'air.
  3. Appareil de correction auditive suivant la revendication 1 ou 2, caractérisé par le fait que pour éviter des vibrations du type de celles d'une membrane, la face, qui est tournée vers la chambre (16) du boîtier, du fond (18) et/ou du couvercle (17) possède une structuration (33) sous la forme d'une surface rugueuse et/ou sous la forme de nervures et/ou sous la forme de renforcements de paroi.
  4. Appareil de correction auditive suivant l'une des revendications 1 à 3, caractérisé par le fait que la paroi de séparation (15) prend appui, au moyen de barrettes (36), contre la première coque (2) du boîtier.
  5. Appareil de correction auditive suivant la revendication 2, caractérisé par le fait que la chambre (2) du boîtier est habillée, sur sa face intérieure, en totalité ou en partie par une tôle en fer doux (44).
  6. Appareil de correction auditive suivant l'une des revendications 1 à 5, caractérisé par le fait que le couvercle (17) de la chambre (16) du boîtier entoure de façon étanche, sur un bord circonférentiel (31), le bord frontal supérieur libre de la paroi de séparation (15).
  7. Appareil de correction auditive suivant la revendication 6, caractérisé par le fait que pour fermer la chambre (16) du boîtier, le couvercle (17) peut être placé sur le bord frontal supérieur libre de la paroi de séparation (15), moyennant l'utilisation d'un agent d'étanchéité ou d'une garniture d'étanchéité (32).
  8. Appareil de correction auditive suivant l'une des revendications 1 à 7, caractérisé par le fait que dans une section de la paroi de séparation (4) est prévu un passage (28) pour l'élément de liaison élastique (22) du transducteur (13), qui aboutit à l'ouverture (26) débouchant hors du boîtier.
  9. Appareil de correction auditive suivant la revendication 8, caractérisé par le fait qu'un embout fileté (10) servant à fixer et à raccorder un crochet de support (11) peut être inséré par une section non filetée, à travers l'ouverture (26) du boîtier, dans le passage (28) de la paroi de séparation et que le couvercle (17) de la chambre (16) du boîtier verrouille la section non filetée dans la zone de la paroi de séparation.
  10. Appareil de correction auditive suivant la revendication 9, caractérisé par le fait que la section non filetée de l'embout fileté (10) possède une gorge (29), dans laquelle le couvercle s'engage par un appendice saillant.
  11. Appareil de correction auditive suivant l'une des revendications 1 à 10, caractérisé par le fait que le couvercle (17) peut être vissé (40) contre la paroi de séparation et/ou contre des tétons de fixation de la première coque (2) du boîtier.
  12. Appareil de correction auditive suivant l'une des revendications 1 à 10, caractérisé par le fait que le couvercle (17) possède au moins un oeillet de fixation conformé (39) et qu'une zone de fixation (40) est prévue notamment dans la zone du passage (15,28) ménagée dans la paroi de séparation, pour l'embout fileté (10).
  13. Appareil de correction auditive suivant l'une des revendications 1 à 12, caractérisé par le fait que pour le verrouillage de l'embout fileté (10) , une barrette métallique (30) ou une tige peut être insérée dans la gorge (29) de la section non filetée (25) de l'embout fileté, qui prend appui contre la paroi de séparation (15) et est maintenu par le couvercle (17) dan sla position verrouillé.
  14. Appareil de correction auditive suivant l'une des revendications 1 à 13, caractérisé par le fait que dans la paroi de séparation (15) est prévu un passage pour une tresse permettant le raccordement électrique (41) du transducteur (13), passage dans lequel une douille (43) peut être insérée en tant qu'élément d'étanchéité et système de détente de traction.
  15. Appareil de correction auditive suivant l'une des revendications 1 à 13, caractérisé par le fait qu'une section coudée (44) de la paroi de séparation (15) forme, avec la première coque (2) du boîtier, une seconde chambre (45) du boîtier pour un autre transducteur électro-acoustique (7), que la seconde chambre (45) du boîtier peut être fermée par la seconde coque (3) du boîtier et que dans la première coque (2) du boîtier est prévue une ouverture (46) d'entrée du son en direction de la seconde chambre du boîtier.
  16. Appareil de correction auditive suivant la revendication 9, caractérisé par le fait que l'embout fileté (10), qui peut être vissé dans un perçage du crochet de support (11), possède, à la suite du filetage (37), un appendice saillant cylindrique non fileté (38), dont le diamètre est supérieur à celui du perçage du crochet de support et dont la longueur est supérieure au pas d'un filetage sur une rotation de 360° et que cet appendice saillant (38) établit une étanchéité entre l'embout fileté (10) et le crochet de support (11).
  17. Appareil de correction auditive suivant l'une des revendications 1 à 16, caractérisé par le fait que la section de l'embout fileté (10), qui peut être enfichée dans une ouverture (26) du boîtier et dans le passage (28) de la paroi de séparation (15), forme une partie triangulaire ou polygonale (25) permettant la fixation, avec blocage en rotation, dans l'ouverture de boîtier conformée de façon correspondante ou dans le passage conformé de façon correspondante.
  18. Appareil de correction auditive suivant l'une des revendications 9, 16 ou 17, caractérisé par le fait que l'embout fileté (10) possède un perçage (23) permettant l'insertion de l'élément de liaison élastique (22) du transducteur (13), qui s'étend sous la forme d'un cône qui se rétrécit depuis la configuration polygonale (25) en direction de la section d'embout (37) qui doit être reliée au crochet de support.
EP90113878A 1990-07-19 1990-07-19 Appareil de prothèse auditive à porter derrière l'oreille Expired - Lifetime EP0466961B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP90113878A EP0466961B1 (fr) 1990-07-19 1990-07-19 Appareil de prothèse auditive à porter derrière l'oreille
AT90113878T ATE112922T1 (de) 1990-07-19 1990-07-19 Hinter dem ohr zu tragendes hörhilfegerät.
DE59007457T DE59007457D1 (de) 1990-07-19 1990-07-19 Hinter dem Ohr zu tragendes Hörhilfegerät.
DK90113878.4T DK0466961T3 (da) 1990-07-19 1990-07-19 Et bag øret bærbart høreapparat

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP90113878A EP0466961B1 (fr) 1990-07-19 1990-07-19 Appareil de prothèse auditive à porter derrière l'oreille

Publications (2)

Publication Number Publication Date
EP0466961A1 EP0466961A1 (fr) 1992-01-22
EP0466961B1 true EP0466961B1 (fr) 1994-10-12

Family

ID=8204232

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90113878A Expired - Lifetime EP0466961B1 (fr) 1990-07-19 1990-07-19 Appareil de prothèse auditive à porter derrière l'oreille

Country Status (4)

Country Link
EP (1) EP0466961B1 (fr)
AT (1) ATE112922T1 (fr)
DE (1) DE59007457D1 (fr)
DK (1) DK0466961T3 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7460680B2 (en) * 2003-06-30 2008-12-02 Siemens Hearing Instruments, Inc. Feedback reducing receiver mount and assembly
WO2005055652A1 (fr) 2003-12-05 2005-06-16 Oticon A/S Dispositif de communication equipe d'un logement recepteur
US8873785B2 (en) * 2007-12-11 2014-10-28 Zounds Hearing, Inc. Attenuating tip for hearing aid
DK2229009T3 (da) 2009-03-09 2014-02-03 Oticon As Høreapparat
TWI786486B (zh) 2020-12-10 2022-12-11 仁寶電腦工業股份有限公司 聽力輔助裝置

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1139549B (de) * 1961-06-16 1962-11-15 Robert Bosch Elektronik Ges Mi Hinter dem Ohr zu tragendes Schwerhoerigengeraet
CA1235791A (fr) * 1984-01-04 1988-04-26 Gordon B. Gore Suspension pour transducteurs electro-acoustiques
CH664057A5 (de) * 1984-02-27 1988-01-29 Phonak Ag Hoergeraet.

Also Published As

Publication number Publication date
EP0466961A1 (fr) 1992-01-22
DE59007457D1 (de) 1994-11-17
ATE112922T1 (de) 1994-10-15
DK0466961T3 (da) 1995-03-27

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