EP2661104A2 - Procédé de fabrication d'un embout auriculaire avec évent - Google Patents

Procédé de fabrication d'un embout auriculaire avec évent Download PDF

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Publication number
EP2661104A2
EP2661104A2 EP13164804.0A EP13164804A EP2661104A2 EP 2661104 A2 EP2661104 A2 EP 2661104A2 EP 13164804 A EP13164804 A EP 13164804A EP 2661104 A2 EP2661104 A2 EP 2661104A2
Authority
EP
European Patent Office
Prior art keywords
vent
virtual
vents
hearing
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.)
Withdrawn
Application number
EP13164804.0A
Other languages
German (de)
English (en)
Other versions
EP2661104A3 (fr
Inventor
Artem Boltyenkov
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 Pte Ltd
Original Assignee
Siemens Medical Instruments Pte Ltd
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 Medical Instruments Pte Ltd filed Critical Siemens Medical Instruments Pte Ltd
Publication of EP2661104A2 publication Critical patent/EP2661104A2/fr
Publication of EP2661104A3 publication Critical patent/EP2661104A3/fr
Withdrawn legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R31/00—Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor
    • 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
    • H04R25/48—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception using constructional means for obtaining a desired frequency response
    • 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
    • H04R25/70—Adaptation of deaf aid to hearing loss, e.g. initial electronic fitting
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/49005—Acoustic transducer

Definitions

  • the present invention relates to a method for manufacturing an ear piece of a hearing device to be inserted into an ear canal by selecting a virtual raw vents and fabricating the ear piece with a real vent.
  • a hearing device is here understood to mean any device which can be worn in or on the ear and produces a sound stimulus, in particular a hearing device, a headset, headphones and the like.
  • Hearing aids are portable hearing aids that are used to care for the hearing impaired.
  • different types of hearing aids such as behind-the-ear hearing aids (BTE), hearing aid with external receiver (RIC: receiver in the canal) and in-the-ear hearing aids (ITE), e.g. Concha hearing aids or canal hearing aids (ITE, CIC).
  • BTE behind-the-ear hearing aids
  • RIC hearing aid with external receiver
  • ITE in-the-ear hearing aids
  • ITE in-the-ear hearing aids
  • ITE in-the-ear hearing aids
  • ITE concha hearing aids or canal hearing aids
  • the hearing aids listed by way of example are worn on the outer ear or in the ear canal.
  • bone conduction hearing aids, implantable or vibrotactile hearing aids are also available on the market. The stimulation of the damaged hearing takes place either mechanically or electrically.
  • Hearing aids have in principle as essential components an input transducer, an amplifier and an output transducer.
  • the input transducer is usually a sound receiver, z. As a microphone, and / or an electromagnetic receiver, for. B. an induction coil.
  • the output transducer is usually used as an electroacoustic transducer, z. As miniature speaker, or as an electromechanical transducer, z. B. bone conduction, realized.
  • the amplifier is usually integrated in a signal processing unit. This basic structure is in FIG. 1 shown using the example of a behind-the-ear hearing aid. In a hearing aid housing 1 for carrying behind the ear, one or more microphones 2 for receiving the sound from the environment are installed.
  • a signal processing unit 3 which is also integrated into the hearing aid housing 1, processes the microphone signals and amplifies them.
  • the output signal of the signal processing unit 3 is transmitted to a loudspeaker or earpiece 4, which outputs an acoustic signal.
  • the sound is optionally transmitted via a sound tube, which is fixed with an earmold in the ear canal, to the eardrum of the device carrier.
  • the power supply of the hearing device and in particular the signal processing unit 3 is effected by a likewise integrated into the hearing aid housing 1 battery. 5
  • a vent is often an essential part of a hearing aid or ear tip.
  • the Vent ventilates the space in the ear canal between the eardrum and the hearing aid shell or earmold. If the vent is too big, feedback will increase. If the vent is too small, however, occlusion effects may occur. An optimal vent therefore represents a corresponding compromise.
  • a hearing aid can be adapted to the hearing loss or hearing of a user.
  • the acoustic behavior of a hearing aid including Vent can be simulated.
  • the simulation assumes a vent with a round cross section. However, it is usually not certain that such a round, simulated vent fits into the earmold or the hearing aid shell. If, however, deviates from the simulated form when making the earmold or the hearing aid shell, and the acoustic behavior of the hearing device compared to the simulated behavior changes.
  • an ear piece eg earmold or hearing aid shell
  • Vent designed as follows: First, for example, was chosen by the fitting software, a round Vent. Then it was tried to fit this round vent in the ear piece. If he did not fit in the shell, another form of the ventrum was tried.
  • vent length was not considered at all. However, the vent length influences the acoustic mass of the vent and thus its corner frequency in the transmission behavior.
  • the document describes US 2008/0300703 A1 a hearing aid with an embedded vent channel.
  • the described manufacturing method is based on a computer model with which the acoustic properties of a vents can be simulated.
  • the computer model is based on the acoustic impedance.
  • the object of the present invention is therefore to propose a method by which ear pieces of hearing devices can be manufactured more reliably with regard to predetermined vent properties.
  • this object is achieved by a method for producing an ear piece to be inserted into an auditory canal a hearing device by selecting a virtual Roh-Vents and making the ear piece with a real vent, and determining a corner frequency of the acoustic transfer function of the virtual Roh-Vents and determining a virtual Vents depending on the corner frequency and at least one predetermined property of the ear canal or Earpiece, wherein the making of the ear piece is based on the virtual Vents.
  • an acoustic variable namely the corner frequency of the acoustic transfer function of the virtual raw vents, is used as the basis for the production. At first it is not necessary to know the final shape of the real vents. Rather, this is determined based on the corner frequency and on the basis of geometric conditions of the ear canal and / or the hearing device. Since the real vent finally has the originally set corner frequency, it has known acoustic properties.
  • the virtual raw vent has a circular cross-section. This has the advantage that in the simulation of a simple geometry can be assumed, and the acoustician when adjusting need not worry about the geometry of the vents.
  • the selection of the virtual raw vents by means of an adaptation software for adapting the hearing device to a hearing of the user.
  • the acoustic properties of the vents can thus be simulated together with the other acoustic properties of the hearing device together.
  • the acoustic mass of the virtual raw vents can be determined and the virtual vent can be obtained as a function of the acoustic mass. Namely, the corner frequency of a tube-shaped vents can be clearly assigned to an acoustic mass or vice versa.
  • the at least one predetermined property of the earpiece may be the location or course of the virtual vein in the earpiece. This can be taken directly into the placement and the course of the virtual Vents in the geometric design of the Vents consideration.
  • one of several predetermined Vent geometries can be selected automatically or semi-automatically based on the corner frequency according to an embodiment.
  • Such predetermined geometries have the advantage that a relatively realizable geometry of the vents can be found relatively quickly.
  • data can be stored via the virtual and / or real vent in the hearing device. This has the advantage that the data on the vent are always available for later use.
  • data on the vent may be used by the fitting software to match the user's hearing.
  • the vent data can easily be read out of the earpiece or the hearing device, and an acoustic variable (corner frequency or acoustic mass) which can be directly used for the fitting software is thus available for the adaptation.
  • the earpiece may be an earmold or an earmold.
  • earmolds are individually adapted to the ear canal, so that a Vent solution is provided to avoid occlusion effects.
  • the hearing device may for example also be an ITE hearing device and the earpiece may be the shell of the ITE hearing device.
  • IdO hearing aids can be made with acoustically defined Vent.
  • FIG. 2 a flow is shown, according to which a hearing device and in particular a hearing aid with a vent for ventilation can be produced.
  • a hearing device and in particular a hearing aid with a vent for ventilation can be produced.
  • such a course is also suitable for the production of the earpiece, ie an earmold or an ITE hearing device shell, a hearing device.
  • a hearing care professional selects in a fitting software a suitable vent for a hearing aid of a patient or user. He selects a virtual raw vent RV.
  • a virtual raw vent has, for example, a simple round cross-section. The diameter and length of the raw vents can be set by the fitting software. With the so-defined virtual raw vent, an acoustic simulation of a corresponding hearing device can be realized.
  • the geometry of the round raw vents is fixed.
  • the acoustician does not know whether such a round vent can be installed in the hearing device, he gives to the manufacturer of the hearing device with an order with an acoustic equivalent Vent AEV according to step 11.
  • As the basis of this acoustically equivalent vents serve the geometry data (possibly only the diameter of the raw Vents) of the original round raw Vents RV.
  • This order The hearing aid with the acoustically equivalent Vent, the acoustician can perform, for example, using an ordering software.
  • the manufacturer receives the order with the acoustically equivalent Vent AEV. For example, he enters this order in a shell modeling software. From the geometry data of the raw vents, this calculates a corner frequency EF of the acoustic transfer function of the virtual raw vents. For example, if only the diameter of the raw vents is present, then the shell modeling software starts from an average shell length, which then determines the length of the vents. If the length of the raw vents is also present, the corner frequency EF can be calculated correspondingly more accurately in step 12.
  • the shell modeling software may also obtain a different acoustic quantity, such as the acoustic mass, from the geometry data of the raw vents.
  • a different acoustic quantity such as the acoustic mass
  • the further production then takes place on the basis of the acoustic mass of the Ventraums instead of the corner frequency of the Vents. Corner frequency and acoustic mass are interconvertible in a known manner.
  • the shell modeling software automatically or partially automatically determines the location LOK of the vents in the shell or earpiece.
  • location here also means the course (ie the entire geometric location) of the vents within the shell or earpiece.
  • the shell modeling software then executes an iteration loop with the iteration variable i, using the location LOK (if appropriate, including the course) and the corner frequency EF (alternatively also acoustic mass).
  • a virtual vent is to be formed on the basis of the corner frequency EF and the desired location LOK in or on the earpiece.
  • a plurality of Ventformen VF i provided for example by a database.
  • a virtual vent for the specific corner frequency and the selected location is then formed with a first vent mold VF 1 .
  • This is a virtual Vent is determined based on the desired corner frequency EF and located at the desired location LOK in / on the ear piece.
  • the virtual vein data is now used in step 16 for fabrication FAB to make a real eartip with a real vent. If appropriate, the data of the determined virtual vein, which corresponds geometrically to the real vent, are stored in a memory of the hearing device. Subsequently, the ear piece or the entire hearing is delivered to the acoustician.
  • step 17 the real audiologist is connected to the fitting software ANP, with which the raw vent has already been selected in step 10.
  • the fitting software ANP then reads, for example, the vent data stored in the hearing device and recognizes that there is a real vent that is acoustically equivalent to the round vent with the diameter ordered by the acoustics specialist.
  • a high-quality adaptation can be made, which also takes into account the original acoustic requirements of the acoustician in the first simulation (step 10).
  • an ear piece for a hearing device with a vent which has predetermined acoustic properties can thus be produced reliably in an automated process.
  • a corner frequency-based Ventaus Vietnamese is made in a fitting software .
  • the hearing device or earpiece is ordered with an acoustically equivalent vent.
  • the vent is designed in the above example by shell modeling software according to the required cutoff frequency or acoustic mass of the vent.
  • information about the built-in vent is stored in the hearing aid.
  • this information is read from the hearing device of the fitting software and used for the correct programming of the hearing.
  • the simulation of the vents in the simulation software (eg fitting software) is linked via the corner frequency or the acoustic mass to the actually installed vent.
  • the final fit can then be improved by storing the information about the actual built-in vent in the fitting hearing aid.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Neurosurgery (AREA)
  • Otolaryngology (AREA)
  • Manufacturing & Machinery (AREA)
  • Headphones And Earphones (AREA)
  • Prostheses (AREA)
EP13164804.0A 2012-05-03 2013-04-23 Procédé de fabrication d'un embout auriculaire avec évent Withdrawn EP2661104A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102012207316A DE102012207316B3 (de) 2012-05-03 2012-05-03 Verfahren zum Herstellen eines Ohrstücks mit Vent

Publications (2)

Publication Number Publication Date
EP2661104A2 true EP2661104A2 (fr) 2013-11-06
EP2661104A3 EP2661104A3 (fr) 2017-10-25

Family

ID=48190157

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13164804.0A Withdrawn EP2661104A3 (fr) 2012-05-03 2013-04-23 Procédé de fabrication d'un embout auriculaire avec évent

Country Status (3)

Country Link
US (1) US20130291370A1 (fr)
EP (1) EP2661104A3 (fr)
DE (1) DE102012207316B3 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080300703A1 (en) 2000-09-25 2008-12-04 Phonak Ag Hearing device with embedded channel
WO2009068696A2 (fr) 2008-12-19 2009-06-04 Phonak Ag Procédé de fabrication de dispositifs auditifs

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1246506A1 (fr) * 2001-03-26 2002-10-02 Widex A/S Système CAD-CAM pour préparer une prothèse auditive
CN101292570A (zh) * 2005-10-17 2008-10-22 唯听助听器公司 用于适配助听器的系统和方法
DE102008021613A1 (de) * 2008-04-30 2009-11-05 Siemens Medical Instruments Pte. Ltd. Verfahren und Vorrichtung zur Bestimmung eines Verschlussgrads bei Hörgeräten
EP2415279B1 (fr) * 2009-03-30 2014-08-20 Phonak AG Procédé de fabrication d'un écouteur à forme individualisé

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080300703A1 (en) 2000-09-25 2008-12-04 Phonak Ag Hearing device with embedded channel
WO2009068696A2 (fr) 2008-12-19 2009-06-04 Phonak Ag Procédé de fabrication de dispositifs auditifs

Also Published As

Publication number Publication date
DE102012207316B3 (de) 2013-10-10
US20130291370A1 (en) 2013-11-07
EP2661104A3 (fr) 2017-10-25

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