EP0245742B1 - Méthode et dispositif de fabrication d'un embout auriculaire - Google Patents

Méthode et dispositif de fabrication d'un embout auriculaire Download PDF

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Publication number
EP0245742B1
EP0245742B1 EP87106413A EP87106413A EP0245742B1 EP 0245742 B1 EP0245742 B1 EP 0245742B1 EP 87106413 A EP87106413 A EP 87106413A EP 87106413 A EP87106413 A EP 87106413A EP 0245742 B1 EP0245742 B1 EP 0245742B1
Authority
EP
European Patent Office
Prior art keywords
cap
shell
die
otoplastic
over
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
EP87106413A
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German (de)
English (en)
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EP0245742A1 (fr
Inventor
Ulrich Birkholz
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 AG
Siemens Audioligische Technik GmbH
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Priority claimed from DE8613335U external-priority patent/DE8613335U1/de
Application filed by Siemens AG, Siemens Audioligische Technik GmbH filed Critical Siemens AG
Priority to AT87106413T priority Critical patent/ATE60479T1/de
Publication of EP0245742A1 publication Critical patent/EP0245742A1/fr
Application granted granted Critical
Publication of EP0245742B1 publication Critical patent/EP0245742B1/fr
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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
    • H04R25/65—Housing parts, e.g. shells, tips or moulds, or their manufacture
    • H04R25/658—Manufacture of housing parts
    • 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
    • H04R2225/025—In the ear hearing aids [ITE] hearing aids
    • 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
    • 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
    • H04R25/603—Mounting or interconnection of hearing aid parts, e.g. inside tips, housings or to ossicles of mechanical or electronic switches or control elements
    • 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
    • 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

Definitions

  • the invention relates to a method for producing an otoplastic according to the preamble of claim 1. It also relates to a device for carrying out such a method.
  • German utility model application 85 18 681.3 an in-the-ear hearing aid module is already proposed, which can be inserted into the cavity of an outer shell on which the earmold is attached.
  • GB-A-2 101 521 discloses a method for producing an otoplastic for hearing aids, in which a simple stamp (dummy) is used. To produce the otoplastic, the stamp is immersed in a negative of the ear impression in which the liquid otoplastic material is located. After the otoplastic material has hardened, the stamp is separated from the otoplastic blank.
  • the object of the present invention is to provide a method and a device by means of which the associated otoplastic can be produced in an optimally simple and rapid manner for an in-the-ear hearing aid module with a cover.
  • the object is achieved with the characterizing features of the method of claim 1. It is also solved by a device according to claim 8 for performing such a method.
  • the cap placed on the nozzle allows the hole in the upper shell to be well centered with respect to the otoplastic surrounding the upper shell. This automatically centers the sound outlet connector of an in-the-ear hearing aid module inserted into the upper shell of the finished earmold so that after insertion into the auditory canal of the hearing-impaired person, acoustic decoupling from the walls of the auditory canal is always guaranteed.
  • the sound emitted by the listener of the in-the-ear hearing aid module can therefore always emerge unhindered from the in-the-ear hearing aid module into the auditory canal at the predetermined central position.
  • the punch 1 shows a punch 1, a matching cover shell 2 and a first cap 3 and second cap 4.
  • the punch 1 for example, of a dimensionally stable up to at least 100 0 temperature-mindedm material (eg black Rhyton) which forms the Outer contour of the housing of an in-the-ear hearing aid module (see, for example, FIG. 9). It comprises a stem 6 at its distal end 5 of the stamp and a socket 8 at its proximal end 7 of the stamp Hole 9.
  • the diameter d of the hole 9 is essentially adapted to the diameter of the nozzle 8 of the stamp 1.
  • the first cap 3 has a diameter D1 which is larger than the diameter d of the hole 9 in the upper shell 2.
  • the second cap 4 consists of a first smaller cap part 4 'and a second larger cap part 4 ".
  • the smaller cap part 4' is as high as the cap 3 and also has its diameter D1.
  • the larger cap part 4 " has the diameter D2, which is larger than the diameter D1. In the present case, the relationship D2> D1> d applies.
  • the cap 3 with the smaller diameter D1 is used for narrower ear canals and the cap 4 with the stepped diameters D1, D2 is used for wider ear canals. If appropriate, additional, differently dimensioned or stepped caps can be used for the first and second caps.
  • the cap is e.g. made of light brown Hostaform.
  • Figure 2 shows the components of Figure 1 in the fully assembled state.
  • the outer shell 2 is pulled over the stamp 1 in such a way that the connector 8 projects at least partially through the hole 9.
  • the cap 3 is placed on the part of the nozzle 8 protruding from the hole 9 (e.g. in the present case).
  • FIG. 3 shows a container 10 with the negative 11 of the ear impression (in the present case a plaster impression).
  • the auditory canal part of the negative is indicated at 12.
  • liquid otoplastic material 14 in the present case e.g. a polymethyl methacrylate, e.g. also acrylic PMMA in powder-liquid form.
  • the liquid otoplastic material 14 is poured into the negative 11 of the ear impression.
  • the blank 15 (FIG. 5) consisting of the stamp, outer shell, cap and otoplastic material is removed from the negative 11 of the ear impression. Subsequently, the blank 15, as indicated by the lines a-a and b-b in FIG. 5, is exposed proximally to the cap 3 (line a-a) and distally to the distal end 5 of the stamp 1 (line b-b) from the otoplastic material 13. The exposure is done by grinding or sawing.
  • proximal removal of otoplastic material along the line a-a can take place differently depending on the type of cap used and also on one and the same cap.
  • Figure 6 shows an example with a cap 3.
  • the otoplastic material is removed along the line a'-a 'up to the end face 16 of the cap 3.
  • the exposed cap 3 can then e.g. levered out by means of a fine screwdriver and then the distally cut punch 1 seated in the outer shell 2 is pressed distally out of the outer shell 2 by exerting pressure on the exposed connecting piece 8.
  • the otoplastic material can also be removed up to line a "-a".
  • the cap lid 17 is also removed and only the ring-shaped residual cap part 18 remains on the blank 15. After the residual stamp has been pressed out, this residual cap part 18 can also be removed.
  • FIG. 7 shows an example with a cap 4.
  • the otoplastic material 14 can also be removed up to the end face of the second cap part 4 "of the cap 4 (line a" '- a "') and the cap 4 can be levered out be removed to the end face of the nozzle 8 of the stamp 1.
  • the proximal hole 9 of the outer shell 2 lies essentially centrally in the finished earmold 19. This ensures that when the in-the-ear hearing aid module is inserted, its sound outlet opening is always at a certain minimum distance from the skin tissue in the ear lies. As already mentioned at the beginning, this ensures optimal acoustic coupling to the inner ear.
  • the diameter D of the proximal opening 20 of the otoplastic material 14 of the finished otoplastic 19 corresponds to the diameter D1 of the cap 3 or of the smaller cap part 4 ′ of the cap 4.
  • the smallest diameter D is still so large that a cerumen lid 21 with a diameter D3 can be inserted into the proximal opening 20 of the otoplastic material 14 of the finished otoplastic 19.
  • the smallest diameter D1 of a cap is always at least slightly larger (e.g. 0.2 mm) than the diameter D3 of the cerumen lid 21.
  • the cerumen lid 21 comprises an internal thread 22 which, according to FIG. 9, fits the external thread 23 of a proximal threaded connector 24 of an in-the-ear hearing aid module 25.
  • the in-the-ear hearing aid module 25 can now be inserted into the hollow interior 26 of the finished otoplastic 19 until the proximal threaded connector 24 projects through the hole 9 into the proximal opening 20 of the otoplastic material 14.
  • the cerumen lid 21 can then be screwed onto the threaded connector 24.
  • the in-the-ear hearing aid module 25 thus sits firmly and acoustically tight in the finished earmold 19.
  • the cerumen lid 21 has sieve-like openings 28 on its end face 27. It therefore also serves as a cerumen trap.
  • the depth T1 of the cerumen lid 21 can correspond approximately to the depth T2 of the proximal opening 20 of the otoplastic material 14.
  • the end face 27 of the cerumen cover 21 then ends flush with the proximal end of the finished earmold 19, which is particularly advantageous in the case of narrow ear canals.
  • the depth T1 can also be greater than the depth T2.
  • the cerumen lid 21 then protrudes from the proximal opening 20.
  • the niche formed between the earmold material and the wax cover can then serve as an additional wax catcher.
  • the exposed proximal ring part 29 of the outer shell 2 around the proximal hole 9 serves as an abutment for a screwed-on cerumen lid 21.
  • the in-the-ear hearing aid module 25 comprises on the end face 30 an adjustment button 31 for a volume control, a further actuator 32, a cover 33 for the battery compartment and an opening 34 for the sound supply.
  • the housing is marked with 35.
  • the sound outlet opening in the threaded connector 24 is indicated by 36.
  • the outer shell 2 and the otoplastic material 14 are preferably made of transparent material in the present case. Reworking, in particular retrofitting an air supply duct (vent), is thereby made considerably easier.
  • the otoplastic material according to FIGS. 5 to 7 can be removed just as easily, since the boundaries of the differently colored components - stamp (eg black) and cap (eg light brown) - are clearly visible due to the transparent cover and otoplastic material.

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  • 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)
  • Adornments (AREA)
  • Prostheses (AREA)

Claims (12)

1. Procédé pour fabriquer une prothèse auriculaire (19) par coulée d'un matériau liquide (14) de la prothèse, dans le négatif (11) de l'empreinte de l'oreille et moyennant l'utilisation d'un poinçon (1) simulant le contour extérieur du boîtier d'un appareil de correction auditive destiné à être placé dans l'oreille, caractérisé par les étapes opératoires suivantes:
a) sur le poinçon (1), qui simule le contour extérieur du boîtier (35) d'un module (25) d'appareil de correction auditive destiné à être placé dans l'oreille et qui possède, sur son extrémité distale (5), une tige (6) et, sur son extrémité proximale (7), un embout (8), on emmanche une coque enveloppante (2) possédant un trou proximal (9) de manière que l'embout (8) pénètre au moins partiellement dans ce trou,
b) on emmanche un capuchon (3 ou 4) sur la partie de l'embout (8), qui fait saillie hors du trou (9),
c) on immerge l'ensemble combiné formé du poinçon (1), de la coque enveloppante (2) et du capuchon (3 ou 4) dans le matériau liquide (14) de la prothèse auriculaire, qui est situé dans le négatif (11) de l'empreinte de l'oreille et on positionne cet ensemble dans la position d'insertion la plus appropriée,
d) après durcissement du matériau (14) de la prothèse auriculaire, on retire l'ébauche (15) constituée par le poinçon (1), la coque enveloppante (2), le capuchon (3 ou 4) et le matériau (14) de la prothèse auditive, hors du négatif (1) de l'empreinte de l'oreille, et
e) on retire de l'ébauche (15), sur son côté proximal et son côté distal, le matériau de la prothèse auriculaire et en outre également, sur son côté proximal, le capuchon (3 ou 4) de sorte qu'on peut retirer sans problème le poinçon (1) ou un reste subsistant du poinçon, dans la direction distale de sorte que la coque enveloppante (2), sur laquelle est disposé le matériau (14) de la prothèse auriculaire, subsiste en tant que prothèse auriculaire terminée (19).
2. Procédé suivant la revendication 1, caractérisé par le fait que
e1) on retire de l'ébauche (15), dans sa partie proximale, et ce au moins jusqu'à la surface frontale (16), le capuchon du matériau (14) de la prothèse auriculaire,
e2) on retire le capuchon libéré, et
e3) on refoule dans la direction distale, hors de la coque enveloppante (2), le poinçon (1) ou le reste du poinçon, situé dans cette coque, en appliquant une pression sur l'embout (8) libéré.
3. Procédé suivant la revendication 1, caractérisé par le fait que
e1) on retire de l'ébauche (15), dans sa partie proximale, et ce au moins jusqu'à la surface frontale de l'embout (8) du poinçon (1), le matériau (14) de la prothèse auriculaire et du capuchon,
e2) on refoule dans la direction distale, hors de la coque enveloppante (2), le poinçon (1) ou le reste du poinçon, situé dans cette coque, en appliquant une pression sur l'embout (8) dégagé, et
e3) on retire un reste de capuchon encore présent.
4. Procédé suivant l'une des revendications 1 à 3, caractérisé par le fait qu'on emmanche sur la partie de l'embout (8), qui fait saillie hors du trou (9), un capuchon (3 ou 4), qui possède au moins en partie un diamètre extrêmement faible (D1), supérieur au diamètre (d) du trou (9) dans la coque enveloppante (2).
5. Procédé suivant la revendication 4, caractérisé par le fait que pour des parties plus étroites du conduit auditif dans le négatif (11) de l'empreinte de l'oreille, on emmanche un capuchon (3) possédant un diamètre très petit (D1) et au contraire, pour des parties plus larges du conduit auditif dans le négatif (11) de l'empreinte de l'oreille, on emmanche un capuchon (4) sur la partie de l'embout (8), qui fait saillie hors du trou (9), le capuchon étant formé par une première partie (4') possédant le plus petit diamètre (D1 ) et se prolongeant, sur le côté proximal, par au moins une partie supplémentaire (4") de diamètre supérieur (D2).
6. Procédé suivant la revendication 4 ou 5, caractérisé par le fait qu'on met en place un capuchon (3 ou 4), dont le diamètre le plus faible (D1) est légèrement supérieur, par exemple d'environ 0,2 mm, au diamètre (D3) d'un élément de fixation (21), par exemple d'un couvercle en cérumen, pour la fixation d'un module (25) d'appareil de correction auditive destiné à être placé dans l'oreille, dans la prothèse auriculaire terminée (19).
7. Procédé suivant l'une des revendications 1 à 6, caractérisé par le fait qu'on utilise une coque enveloppante (2), dont le trou (9) est adapté essentiellement au diamètre (d) de l'embout (8) du poinçon (1).
8. Dispositif pour la mise en oeuvre du procédé suivant l'une des revendications 1 à 7, caractérisé par
a) un poinçon (1), qui simule le contour extérieur du boîtier (35) d'un module (25) d'appareil de correction auditive destiné à être placé dans l'oreille et possède, au niveau de l'extrémité distale (5), une tige (6) et, au niveau de l'extrémité proximale (7), un embout (8),
b) une coque enveloppante (2) prévue pour le poinçon (1) et possédant un trou proximal (9), et
c) un capuchon (3 ou 4) pouvant être emmanché sur l'embout (8) du poinçon (1).
9. Dispositif suivant la revendication 8, caractérisé par le fait que le capuchon (3 ou 4) possède au moins en partie un diamètre très petit (d1), supérieur au diamètre (d) du trou (9) ménagé dans la coque enveloppante (2).
10. Dispositif suivant la revendication 9, caractérisé par le fait que pour des parties plus étroites du conduit auditif dans le négatif (11) de l'empreinte de l'oreille, il est prévu un capuchon (3) qui possède continûment le diamètre le plus petit (D1).
11. Dispositif suivant la revendication 9, caractérisé par le fait que pour des parties plus larges du conduit auditif dans le négatif (11) de l'empreinte de l'oreille, il est prévu un capuchon de forme étagée (4), constitué par au moins une première partie (4') possédant le plus petit diamètre (D1), et prolongé par au moins une partie supplémentaire (4") possédant un diamètre supérieur (D2).
12. Dispositif suivant l'une des revendications 1 à 11, caractérisé par le fait que le diamètre (d) du trou (9) de la coque enveloppante (2) est adapté essentiellement au diamètre de l'embout (8) du poinçon (1).
EP87106413A 1986-05-16 1987-05-04 Méthode et dispositif de fabrication d'un embout auriculaire Expired - Lifetime EP0245742B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87106413T ATE60479T1 (de) 1986-05-16 1987-05-04 Verfahren und vorrichtung zur herstellung einer otoplastik.

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE3616533 1986-05-16
DE8613335U DE8613335U1 (de) 1986-05-16 1986-05-16 Vorrichtung zur Herstellung einer Otoplastik
DE3616533 1986-05-16

Publications (2)

Publication Number Publication Date
EP0245742A1 EP0245742A1 (fr) 1987-11-19
EP0245742B1 true EP0245742B1 (fr) 1991-01-23

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Application Number Title Priority Date Filing Date
EP87106413A Expired - Lifetime EP0245742B1 (fr) 1986-05-16 1987-05-04 Méthode et dispositif de fabrication d'un embout auriculaire

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Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8712957U1 (de) * 1987-09-25 1989-01-19 Siemens AG, 1000 Berlin und 8000 München In-dem-Ohr-Hörgerät
EP0410034B1 (fr) * 1989-07-26 1995-03-15 Siemens Audiologische Technik GmbH Procédé et dispositif pour la fabrication d'une coque de boîtier d'une prothèse auditive intra-auriculaire et boîtier obtenu selon ce procédé
DE102011080753A1 (de) * 2011-08-10 2013-02-14 Siemens Medical Instruments Pte. Ltd. Herstellen eines Ohrpassstücks durch Thermoformen

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1487272A1 (de) * 1966-05-09 1969-03-20 Wolfgang Dreve Otoplastik fuer Hoergeraete und Verfahren zur Herstellung der Otoplastik
US3440314A (en) * 1966-09-30 1969-04-22 Dow Corning Method of making custom-fitted earplugs for hearing aids
ATA312481A (de) * 1981-07-15 1982-11-15 Viennatone Gmbh Verfahren zur herstellung eines ein in-ohr -hoergeraet aufnehmenden ohrmuldenkoerpers

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EP0245742A1 (fr) 1987-11-19

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