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EP0159571A1 - Embout pour le canal auditif d'un moulage pour prothèse auditive et moulage pour prothèse auditive - Google Patents

Embout pour le canal auditif d'un moulage pour prothèse auditive et moulage pour prothèse auditive Download PDF

Info

Publication number
EP0159571A1
EP0159571A1 EP85103722A EP85103722A EP0159571A1 EP 0159571 A1 EP0159571 A1 EP 0159571A1 EP 85103722 A EP85103722 A EP 85103722A EP 85103722 A EP85103722 A EP 85103722A EP 0159571 A1 EP0159571 A1 EP 0159571A1
Authority
EP
European Patent Office
Prior art keywords
end piece
otoplastic
rest
loudspeaker
ear
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.)
Granted
Application number
EP85103722A
Other languages
German (de)
English (en)
Other versions
EP0159571B1 (fr
Inventor
Ludwig M. Dipl.-Ing. Moser
Anton Dipl.-Chem. Kammermeier
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.)
Westra Electronic GmbH
Original Assignee
Westra Electronic 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 Westra Electronic GmbH filed Critical Westra Electronic GmbH
Publication of EP0159571A1 publication Critical patent/EP0159571A1/fr
Application granted granted Critical
Publication of EP0159571B1 publication Critical patent/EP0159571B1/fr
Expired 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
    • H04R25/654—Ear wax retarders
    • 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
    • H04R2225/77—Design aspects, e.g. CAD, of hearing aid tips, moulds or housings
    • 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

Definitions

  • the invention relates to a hearing aid otoplastic end piece on the auditory canal side according to the preamble of claim 1.
  • the earmold of a hearing aid is usually cast from plastic after an impression of the ear and has an outer section that sits in the pinna and an adjoining section that projects into the ear canal and is referred to as the ear canal olive, the latter extending over approximately a third of the length of the ear canal stretched into the ear canal.
  • the ear canal olive of the earmold protruding into the ear canal is provided with a sound channel and serves to introduce the amplified sound generated by the hearing aid into the ear canal while at the same time closing the ear canal to the outside.
  • the sound channel formed in the otoplastic is inserted into this sound channel Small plastic tube connected to the speaker capsule sitting in the hearing aid in order to introduce the sound generated by the hearing aid from the speaker capsule through the plastic tube into the sound channel of the earmold and in this way into the ear canal.
  • this tube which runs like a bracket between the hearing aid and the otoplastic, serves to mechanically hold the hearing aid behind the ear.
  • One of the problems that arise with hearing aids is the blockage of the outlet opening of the sound channel formed in the otoplastic with ear wax.
  • the ear wax has an extraordinary creeping ability and therefore easily reaches and into the mouth opening of the sound channel, which is located approximately in the middle, via the dome-like convexly curved end face of the earmold end piece. This can lead relatively quickly to blockage of the sound channel of the otoplastic, which is relatively thin with a usual diameter in the range of 2 mm.
  • the invention is therefore based on the object of solving the problem of clogging of the sound opening of the ear canal end piece by ear wax.
  • the inventive construction of the end piece can effectively prevent clogging of the sound opening with ear wax.
  • the effect is achieved that the ear wax curls like a chip lifted off with a hollow knife at the sharp edge surrounding the sound opening instead of crawling around this edge, as is the case with the conventional, convexly curved end sections of conventional earmolds.
  • the otoplastic end piece according to the invention can be formed in one piece with the rest of the otoplastic (claim 2) or, alternatively, can be designed as an independent component to be attached to the other otoplastic (claim 3).
  • the latter possibility on the one hand, allows the end piece to be made from a different material than the rest of the otoplastic, and on the other hand offers the possibility of cheap mass production of the otoplastic end pieces, which are then used in the manufacture of the individual otoplastics according to the patient's usual ear impression.
  • this can be circular or preferably already produced in oval shape and after connection with the other earmold individually made according to the ear impression, these other earmoulds can be adapted according to the outer contours of the ear canal olive by removing material.
  • a quasi-one-piece connection of a prefabricated end piece according to the invention with a remaining otoplastic to be cast according to the ear impression can be achieved, for example, in that the end piece is provided on its side facing the other otoplastic with a toothed profile to which the remaining otoplastic is cast and in this way a positive connection with the end piece is created (claim 4).
  • Another possibility of connecting a prefabricated end piece according to the invention to the rest of the otoplastic is to design the end piece with a snap-lock-like positive-locking profile, with which it can be plugged onto a corresponding counter profile of the other otoplastic (claim 5).
  • This form-fitting profile can of course be an inner profile interacting with an outer profile of the other otoplastic or an outer profile of the end piece interacting with an inner profile of the other otoplastic.
  • Such a design is particularly suitable when the end piece is made of a relatively soft material. The end piece can then, for example for cleaning purposes, also be easily removed from the rest of the otoplastic and put back on or, if necessary, exchanged for a new end piece.
  • a threaded connection is in use hard plastics readily applicable.
  • the end piece is made of polytetrafluoroethylene, a fine thread can be used.
  • an adhesive connection for attaching the end piece according to the invention to the rest of the otoplastic can also be selected (claim 7), it being possible, of course, to prepare the two adhesive surfaces with a view to achieving good adhesion.
  • Suitable materials for the end piece according to the invention are polytetrafluoroethylene (claim 9) or a soft plastic material such as silicone rubber (claim 10).
  • polytetrafluoroethylene is advantageous in the case of a threaded connection, and in addition this material is completely insensitive to ear wax.
  • soft plastic is more suitable for a snap connection, so that the end piece can then be regarded as a wearing part and can be replaced if necessary.
  • otoplastic end piece designed as a separate component also makes the idea of installing the loudspeaker capsule in the otoplastic appear interesting.
  • the installation of the loudspeaker capsule directly into the otoplastic would bring substantial acoustic advantages with it, since then the previously commonly used sound transmission from a loudspeaker built into the hearing aid to the sound channel of the otoplastic via a thin plastic tube could be dispensed with.
  • One such problem is the connection wiring of the speaker capsule.
  • the practical impossibility of carrying out soldering work on the connecting wires of the loudspeaker capsule in the plastic earmold does not allow the connecting wires between the loudspeaker capsule and the hearing aid to be replaced as a result of the mechanical stress.
  • an otoplastic end piece according to the invention designed as a separate component, also allows a problem to be solved here.
  • the end piece which is designed as an independent component, can be designed as a cover for a loudspeaker chamber formed in the ear canal olive (claim 8), and if this cover is made removable in accordance with the options already mentioned, this loudspeaker chamber and consequently a loudspeaker capsule accommodated in it are easily accessible at all times.
  • the loudspeaker connection cable which connects the loudspeaker capsule to the hearing aid, does not need to be firmly soldered to the loudspeaker capsule, but instead, for example, a flat cable consisting of a flexible carrier tape and applied conductor tracks can be used, which leads into the loudspeaker chamber protrudes, and the speaker capsule can be provided with contact surfaces which are only pressed mechanically onto the corresponding conductor tracks of the flat cable.
  • the otoplastic end piece designed as a lid can be used, which ver by means of a threaded connection with the rest of the otoplastic is bound and presses the speaker capsule with its contact surfaces against the conduction band.
  • solder connection of connecting wires to the loudspeaker capsule is also easily possible, the loudspeaker capsule being able to be removed from the loudspeaker chamber if necessary after removal of the cover, the soldered connecting wires inserted through a passage opening of the ear canal olive being simply retightened until the connection points are exposed.
  • the installation of the loudspeaker capsule into the ear canal olive of the earmold made possible by the invention is very simple in terms of production technology, since the loudspeaker capsule is only inserted into the finished olive. In this way, acoustic testing of different loudspeaker capsules is easily possible.
  • the end piece 1 shows in longitudinal section the end piece area 1 of the ear canal olive 2 of an otoplastic 3.
  • the end piece 1 which is formed in one piece with the other otoplastic, has relatively sharp edges protruding on its outer circumference 11 and on the circumference of the sound opening 41 of the sound channel 4 of the otoplastic in the direction of the inner ear 12 and 13.
  • the end face region 15 running between these edges 12 and 13 and pointing in the direction of the inner ear is concavely curved and forms an acute angle with the outer circumference 11 and with the inner wall 42 of the sound channel 4.
  • Fig. 2 shows, again in longitudinal section, an end piece 1 designed as an independent component, which is to be attached to the rest of the earmold.
  • the end face of this end piece facing the inner ear is in turn characterized by relatively sharp edges 12 and 13 protruding on the outer circumference 11 and on the inner circumference of the sound opening 41 and a concavely curved end face region 15 running between them.
  • the end piece 1 On its other side facing the rest of the otoplastic (not shown), the end piece 1 is designed with a snap-lock-like positive-locking profile 16, which is used to attach the end piece to the rest of the otoplastic, which is designed with a corresponding counter-profile into which the positive-locking profile 16 of the end piece 1 snaps into place.
  • the form-fitting profile 16 of the end piece 1 is shown as an inner profile, that with an outer profile interacts with the rest of the otoplastic. Of course, this profile arrangement can also be used in reverse.
  • Fig. 3 shows, also in longitudinal section, the ear canal olive part of an otoplastic with a lid-like end piece 1 and a loudspeaker capsule 5 installed in a loudspeaker chamber 21 of the olive 2.
  • end piece 1 is preferably made of tetrafluoroethylene and has at its end facing the loudspeaker chamber an externally threaded ring extension 18 which fits into a corresponding internal thread of the olive 2 is screwed in.
  • the loudspeaker capsule 5 is inserted loosely into the loudspeaker chamber 21, in which it is held by means of the end piece 1 serving as the lid of the loudspeaker chamber.
  • a flexible flat cable 6 in the form of a plastic strip with conductor tracks attached to it serves as the electrical lead to the loudspeaker capsule 5.
  • the speaker end of the line is fixed in the speaker chamber 21.
  • the loudspeaker capsule is provided with corresponding contact surfaces 51, with which it, when inserted into the loudspeaker chamber 21, bears against the associated conductor tracks of the flat cable.
  • the necessary contact pressure is generated by the end piece 1 serving as the cover of the loudspeaker chamber, which, when screwed onto the olive 2, presses the loudspeaker capsule into the loudspeaker chamber and against the conductor surfaces of the conductor end of the flat cable 6 fixed in the loudspeaker chamber.
  • the end piece 1 can therefore be easily unscrewed at any time for service purposes, so that the loudspeaker capsule can also be freely removed and, if necessary, exchanged. Likewise, the flat cable can be easily replaced if necessary.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Neurosurgery (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Headphones And Earphones (AREA)
EP85103722A 1984-04-06 1985-03-28 Embout pour le canal auditif d'un moulage pour prothèse auditive et moulage pour prothèse auditive Expired EP0159571B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3413067 1984-04-06
DE3413067A DE3413067C1 (de) 1984-04-06 1984-04-06 Gehoergangseitiges Hoergeraete-Otoplastik-Endstueck und Hoergeraete-Otoplastik

Publications (2)

Publication Number Publication Date
EP0159571A1 true EP0159571A1 (fr) 1985-10-30
EP0159571B1 EP0159571B1 (fr) 1989-02-01

Family

ID=6232908

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85103722A Expired EP0159571B1 (fr) 1984-04-06 1985-03-28 Embout pour le canal auditif d'un moulage pour prothèse auditive et moulage pour prothèse auditive

Country Status (5)

Country Link
US (1) US4679650A (fr)
EP (1) EP0159571B1 (fr)
JP (1) JPS61501674A (fr)
DE (1) DE3413067C1 (fr)
WO (1) WO1985004779A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0270268A2 (fr) 1986-12-05 1988-06-08 Minnesota Mining And Manufacturing Company Embout de prothèse auditive ayant une gaine amovible en mousse polymérique compressible
WO1991005446A1 (fr) * 1989-10-04 1991-04-18 Minnesota Mining And Manufacturing Company Prothese pour l'oreille comprenant un coussinet jetable en mousse polymere compressible
EP0540862A2 (fr) * 1991-11-08 1993-05-12 W.L. Gore & Associates GmbH Capuchon d'obturation pour les ouvertures d'embouts auriculaires
WO1993012626A1 (fr) * 1991-12-09 1993-06-24 Oliveira Robert J Filtre a cerumen pour protheses auditives

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4870689A (en) * 1987-04-13 1989-09-26 Beltone Electronics Corporation Ear wax barrier for a hearing aid
DE3736591C3 (de) * 1987-04-13 1994-04-14 Beltone Electronics Corp Hörgerät mit Ohrschmalzschutz
DE8713369U1 (de) * 1987-10-05 1989-02-09 Siemens AG, 1000 Berlin und 8000 München Vorrichtung zum Verschließen von Öffnungen an Hörgeräten oder Ohrpaßstücken für Hörgeräte
US4800982A (en) * 1987-10-14 1989-01-31 Industrial Research Products, Inc. Cleanable in-the-ear electroacoustic transducer
US4867267A (en) * 1987-10-14 1989-09-19 Industrial Research Products, Inc. Hearing aid transducer
NL8802355A (nl) * 1988-09-26 1990-04-17 Philips Nv In-het-oor hoorapparaat.
US7050876B1 (en) 2000-10-06 2006-05-23 Phonak Ltd. Manufacturing methods and systems for rapid production of hearing-aid shells
DE102005009377B3 (de) * 2005-03-01 2006-09-07 Siemens Audiologische Technik Gmbh Im-Ohr-Hörgerät mit abnehmbarem Lautsprecher
DE102006014023B4 (de) * 2006-03-27 2009-12-10 Siemens Audiologische Technik Gmbh Hörvorrichtung mit einer offenporigen Cerumenschutzeinrichtung
DK201470199A1 (en) * 2014-04-10 2015-10-26 Gn Resound As A hearing aid with replacable receiver
US9386383B2 (en) 2014-04-10 2016-07-05 Gn Resound A/S Hearing aid receiver and a hearing aid comprising such a receiver
US9392385B2 (en) 2014-04-10 2016-07-12 Gn Resound A/S Hearing aid
US9578430B2 (en) 2014-04-10 2017-02-21 Gn Hearing A/S Hearing aid
JP1541645S (fr) * 2015-08-07 2017-01-10

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3169600A (en) * 1964-01-31 1965-02-16 James E Thomas Sound head set
DE1270616B (de) * 1966-08-27 1968-06-20 Photokino G M B H Im Ohr zu tragendes elektronisches Schwerhoerigengeraet
DE1274657B (de) * 1966-02-25 1968-08-08 Bosch Elektronik Photokino Im Ohr zu tragendes elektronisches Schwerhoerigengeraet
FR2050740A5 (fr) * 1969-06-23 1971-04-02 Branch Jack
US3852540A (en) * 1971-12-30 1974-12-03 Elektroakustik Ag F In ear hearing apparatus
US3890474A (en) * 1972-05-17 1975-06-17 Raymond C Glicksberg Sound amplitude limiters
DE2949992A1 (de) * 1978-12-18 1980-07-03 Phonak Ag Im-ohr-hoergeraet fuer schwerhoerige

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1830198A (en) * 1930-08-21 1931-11-03 French Electric Company Inc Ear receiver nipple
US2188591A (en) * 1938-04-16 1940-01-30 Thomas J Carlson Audiphone earpiece
US2430229A (en) * 1943-10-23 1947-11-04 Zenith Radio Corp Hearing aid earpiece
US4532649A (en) * 1983-07-03 1985-07-30 Gaspare Bellafiore Hearing aid

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3169600A (en) * 1964-01-31 1965-02-16 James E Thomas Sound head set
DE1274657B (de) * 1966-02-25 1968-08-08 Bosch Elektronik Photokino Im Ohr zu tragendes elektronisches Schwerhoerigengeraet
DE1270616B (de) * 1966-08-27 1968-06-20 Photokino G M B H Im Ohr zu tragendes elektronisches Schwerhoerigengeraet
FR2050740A5 (fr) * 1969-06-23 1971-04-02 Branch Jack
US3852540A (en) * 1971-12-30 1974-12-03 Elektroakustik Ag F In ear hearing apparatus
US3890474A (en) * 1972-05-17 1975-06-17 Raymond C Glicksberg Sound amplitude limiters
DE2949992A1 (de) * 1978-12-18 1980-07-03 Phonak Ag Im-ohr-hoergeraet fuer schwerhoerige

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0270268A2 (fr) 1986-12-05 1988-06-08 Minnesota Mining And Manufacturing Company Embout de prothèse auditive ayant une gaine amovible en mousse polymérique compressible
EP0270268A3 (en) * 1986-12-05 1989-11-15 Minnesota Mining And Manufacturing Company Hearing aid ear piece having disposable, compressible polymeric foam sleeve
WO1991005446A1 (fr) * 1989-10-04 1991-04-18 Minnesota Mining And Manufacturing Company Prothese pour l'oreille comprenant un coussinet jetable en mousse polymere compressible
EP0540862A2 (fr) * 1991-11-08 1993-05-12 W.L. Gore & Associates GmbH Capuchon d'obturation pour les ouvertures d'embouts auriculaires
EP0540862A3 (en) * 1991-11-08 1993-11-24 Gore W L & Ass Gmbh Cap for sealing openings of ear fitments
WO1993012626A1 (fr) * 1991-12-09 1993-06-24 Oliveira Robert J Filtre a cerumen pour protheses auditives

Also Published As

Publication number Publication date
WO1985004779A1 (fr) 1985-10-24
JPH0414920B2 (fr) 1992-03-16
US4679650A (en) 1987-07-14
JPS61501674A (ja) 1986-08-07
EP0159571B1 (fr) 1989-02-01
DE3413067C1 (de) 1989-06-08

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