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EP1345470A2 - Verfahren zur Herstellung eines am Körper zu tragenden elektronischen Gerätes, welches an den Form eines Körperteils eines Individuum angepasst ist. - Google Patents

Verfahren zur Herstellung eines am Körper zu tragenden elektronischen Gerätes, welches an den Form eines Körperteils eines Individuum angepasst ist. Download PDF

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Publication number
EP1345470A2
EP1345470A2 EP03007673A EP03007673A EP1345470A2 EP 1345470 A2 EP1345470 A2 EP 1345470A2 EP 03007673 A EP03007673 A EP 03007673A EP 03007673 A EP03007673 A EP 03007673A EP 1345470 A2 EP1345470 A2 EP 1345470A2
Authority
EP
European Patent Office
Prior art keywords
digitized representation
representation
shell
detailing
digitized
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
EP03007673A
Other languages
English (en)
French (fr)
Other versions
EP1345470B1 (de
EP1345470A3 (de
Inventor
Christoph Widmer
Samuel Hans Martin Roth
Gregory Bleiker
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.)
Sonova Holding AG
Original Assignee
Phonak AG
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 Phonak AG filed Critical Phonak AG
Priority to DK03007673T priority Critical patent/DK1345470T3/da
Priority to DE60309363T priority patent/DE60309363T2/de
Priority to EP03007673A priority patent/EP1345470B1/de
Publication of EP1345470A2 publication Critical patent/EP1345470A2/de
Publication of EP1345470A3 publication Critical patent/EP1345470A3/de
Application granted granted Critical
Publication of EP1345470B1 publication Critical patent/EP1345470B1/de
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
    • H04R25/65—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

Definitions

  • the present invention is directed to a method for manufacturing a body-worn device, especially such electronic device which is adapted to suit the shape of an individual's body area.
  • the present invention departs from objectives as encountered in the art of hearing device manufacturing and especially hearing aid device manufacturing, as will become apparent to the skilled artisan, it may be used for more generalized manufacturing of body-worn devices, especially electronic devices, whereat the outer shape of such device shall fit to specific body's areas of an individual.
  • the process of manufacturing hearing devices starts customarily by taking a cast or impression of the ear, thereby especially of the ear canal including parts of the outer ear.
  • the cast is roughly cut with respect to the type of device to be manufactured and the size and type of electronic components that will have to be placed in the device by assembling.
  • the cast is detailed by surface-machining and local or overall waxing allows for smoothening the surface, increasing the shape of the cast and fixing cast inaccuracies.
  • the resulting detailed cast is used for making a negative to be used as a mold, wherein a shell of the device is produced using e.g. UV-curable material.
  • additional components as e.g. a vent is machined into the shell, holes are drilled for the receiver etc. and the resulting shell is finalized e.g. by grinding.
  • the device is lastly terminated by assembling electronic components into the shell.
  • a body-worn device especially electronic device, which is adapted to the shape of an individuals' body area and which comprises the steps of
  • a method for manufacturing a shell for a body-worn device adapted to the shape of an individual's body area which comprises all the said steps except the step of assembling the device with the shell.
  • the manufacturing method further comprises the step of detailing the digitized representation in dependency of the at least one characteristic feature as automatically determined and producing the shell in dependency of the detailed digitized representation.
  • the determined characteristic feature is an accurate basis for deciding how and where the digitized representation is to be detailed, so that again reproducibility of the detailed digitized representation and thus of the resulting shell is significantly improved.
  • detailing comprises at least one of cutting, surface treating, offsetting, fixing, relaxing and increasing at least a part of the digitized representation, whereby such actions are performed digitally.
  • the step of automatically determining the at least one characteristic feature comprises performing such determining by automatically investigating the digitized representation under the constraint of predetermined geometrical rules. Thereby, e.g rules with respect to curvature, surface areas of cross-sections, etc., of the digitized representation are investigated under predetermined criteria so as to find at the digitized representation the location of the respective characteristic feature.
  • the determining step comprises comparing the digitized representation with a digital representation of a standard of the body area.
  • characteristic features of the standard may be exploited as the respective characteristic features of the digitized representation actually treated and may thus be taken at least as a first approximation of such characteristic features to be automatically determined at the digitized representation.
  • the step of preparing the digitized representation is performed by scanning a cast of the body area. In a further preferred embodiment the step of preparing the digitized representation is performed by three-dimensional scanning of the body area directly.
  • step comprises providing such representation of the body area as one which has already been applied for manufacturing a body-worn device and which shall e.g. be improved, taking into account needs of the individual which have changed since the body-worn device had been manufactured. Such changing needs may be based e.g. on individual's growth, aging, etc.
  • the step of preparing the digitized representation is performed by scanning a cast of the body area, whereby detailing comprises mechanically detailing the cast in dependency of the detailed digitized representation, thereby producing the shell from said mechanically detailed cast.
  • the detailed digitized representation provides for information how to mechanically detail the cast.
  • mechanical detailing of the cast is performed by digitally controlled treatment or machining.
  • the mould which is produced in dependency of the detailed digitized representation.
  • such mould producing may still be performed manually and based on the information from the detailed digitized representation, in a preferred mode such mould production is performed by a digitally controlled process, which is digitally controlled dependent from the detailed digitized representation.
  • production of the shell is performed directly by means of a digitally controlled process, whereby such process control comprises controlling by the detailed digitized representation.
  • the method according to the present invention comprises detailing the digitized representation in dependency of the at least one characteristic feature as determined. Departing therefrom and in a most preferred embodiment the method according to the present invention comprises the step of providing automatically at least one of detailing and of at least one suggestion for performing said detailing.
  • the step of automatically providing at least one of detailing and of at least one suggestion for such detailing is performed on the basis of an expert system and of at least one predetermined target to be achieved.
  • an expert system and of at least one predetermined target to be achieved.
  • digitized representation of the outer ear and ear canal such digitized representation may be used for manufacturing an outside-the-ear device OTE, an in-the-ear device ITE or a completely in-the-canal CIC device, which devices obviously necessitate different detailing at the one digitized representation.
  • such expert system is based on pre-established geometric rules and/or on recorded knowledge.
  • a preferred generic embodiment of the method according to the present invention is to check accuracy of the prepared digitized representation and/or of the automatic determination of at least one characteristic feature by comparing the digitized representation and/or the at least one characteristic feature as determined respectively with a standard digitized representation and/or a standard characteristic feature.
  • providing automatically at least one of detailing and of at least one suggestion comprises comparing the digitized representation with more than one digitized representations as approved to be accurate so as to find that approved digitized representation which best matches with the digitized representation as actually treated. There is generated the detailing step and/or said suggestion in dependency of the detailed digitized representation of the best matching digitized representation.
  • the expert system is continuously updated in dependency of the detailed digitized representation actually treated, if latter reveals to be approved after producing the shell. Thereby, such approved detailed digitized representation is added to the further approved digitized representations for finding the best match so as to update comparison basis for such finding.
  • the characteristic feature is preferably one of
  • the characteristic feature is preferably one of
  • the device manufactured is a hearing device, thereby, further preferred, an in-the-ear hearing device. Nevertheless, such a device may also be an outside-the-ear hearing device.
  • the addressed devices are hearing aid devices.
  • the detailed digitized representation data is stored in the device as manufactured.
  • a system for manufacturing a shell for a body-worn device comprises a storing unit for a data set representing a three-dimensional image, a processing unit, the input thereof being operationally connected to an output of the storing unit, whereby the processing unit generates at its output automatically a changed data set departing from said data set.
  • a digitized representation 1 from the outer ear and ear canal of an individual as a most preferred example of an individual's body area, whereat a device to be manufactured shall be applied.
  • Characteristic features of such representation are e.g.:
  • a digitized three-dimensional representation 1 of the area of interest of individual's body is in one embodiment prepared by performing a three-dimensional scan 3 by a scanner unit 3U of the area 5, e.g. of the outer ear and ear canal area 5.
  • a scanner unit 3U of the area 5, e.g. of the outer ear and ear canal area 5.
  • a cast 7 of individual's area of interest is then scanned - 9 - by a scanner unit 9U to result in the three-dimensional representation 1.
  • the three-dimensional representation 1 may be provided from an earlier digitized three-dimensional representation of that area, which earlier representation shall be changed, e.g. updated. With an eye on ear canal representation this may become necessary with increasing age of the respective individual.
  • V Visualized
  • the digitized representation 1 of the outer ear and part of the ear canal is shown as an example in fig. 3a resulting by computerized applying an envelope surface, in a representation according to fig. 3b.
  • the digitized representation 1 is the basis for automatically determining at least one characteristic feature thereat.
  • Such characteristic features are found by applying predetermined geometric rules 15 to the digitized representation 1, thereby investigating the digitized representation data 1 with the constraint of such rules. For instance and with an eye on the digitized and visualized representation 1V according to the figs. 3a and 3b and as shown in fig. 3b, an outermost in-plane contour line N is detected in the digitized representation 1 e.g.
  • a further characteristic feature of importance is the centre line or medial axis of the ear canal and part of the outer ear. This line is e.g. established by calculating the centre point P CN , i.e. the centre of weight of the plane-surface W N defined by the in-plane contour N.
  • the slices, whereat the centre points P CX are calculated are e.g. established parallel to the plane of surface W N .
  • the slices are angularly adjusted to be in planes perpendicularly to the first approximation of the centre line F yet found. This results in slightly shifted centre points, which thus define for a second approximation of the centre line F.
  • first and second bends of the ear canal at the example addressed may or will be automatically determined.
  • an analysis of curvature of the centre line F as of fig. 4 is performed in combination with an analysis of the outer surface of the digitized representation 1 and thereby especially its curvature, especially in direction of the centre line.
  • a simplified rule for determining the first and second ear canal bends is the change of signum of curvature of the centre line F as schematically shown in fig. 5 with respectively directed curvature radii r + and r - .
  • the aperture plane, whereat the ear canal starts departing from the outer ear is or may be computed by analyzing the sequence of slices perpendicularly and along the centre line F and following the rule that the surface area of such slices in direction from the ear canal towards the outer ear significantly increases there, where the aperture plane E is to be located. As shown in fig. 6 such an analysis following such a rule results in the finding of the entrance of canal plane E.
  • a further possibility to find such characteristic features is to compare the digitized representation 1 with digitized representation 17 according to fig. 2 of same area of individual's body, which has been approved and established as a standard of a digitized representation of individual's body area.
  • comparing the prevailing digitized representation 1 with the established standard representation 17 at least a first approximation of localizing the characteristic features as mentioned above at the digitized representation 1 under investigation is achieved.
  • both possibilities, namely of determining the characteristic features based on rules 15 as well as based on a comparison with a standard 17 are performed.
  • step 20 From the step 20 according to fig. 2 of determining automatically the characteristic features, or at least one thereof, at the digitized representation 1 there results such a digitized representation 1 with the recognized or determined characteristic features thereat.
  • This is schematically shown in fig. 2 by the outcome of determining step 20 as a digitized representation 1' incorporating determined characteristic features.
  • This "featurized" digitized representation 1' is e.g. visualized as shown in fig. 2 at display 13, leading e.g. to visualized representations according to figs. 3b to 6.
  • the digitized representation 1' does not differ from the digitized representation 1, but incorporates the localized characteristic features, i.e. additional, automatically found information.
  • a detailing step 22 By such detailing the digitized representation 1 is principally changed. Such change is performed based on the additional information as provided by the determined characteristic features. Some of the detailing actions will be unspecific to predetermined targets 24. As an example one customarily performed detailing action will be to perform a cut at the digitized representation 1' along the contour N according to the figs. 3b to 4.
  • target or targets 24 By predetermining target or targets 24 it is established e.g. what type of device is to be manufactured.
  • Detailing the digitized representation 1' may thereby preferably comprise at least one of digitally cutting, surface treating the digitized representation 1', offsetting locally parts thereof, fixing parts thereof having been detected as inaccurate, e.g. by comparing with standard 17 as explained above, relaxing the digitized representation.
  • the detailing step 22 is preferably performed automatically and/or in dependency of automatically provided detailing suggestions to the operator.
  • Such suggestions - which are automatically followed, if automatic detailing is performed - on how to change the representation 1' are automatically generated on the basis of an expert system 26, 28.
  • the expert system preferably comprises on one hand geometric algorithms and rules 26 applied to the digitized representation 1' in view of a given target and/or on the other hand established knowledge 28.
  • the detailing action is nevertheless preferably operator-controlled, OP.
  • the operator may select to fully follow the automatically provided suggestion or may, as an expert, more or less depart from such suggestion.
  • one target-related rule 26 is e.g. based on the fact that such a CIC device is to be placed deeply into the ear canal, reaching clearly beyond the first and up to nearly the second bend C, B, according to the definitions given in context with fig. 1.
  • an automatically provided suggestion or an automatically performed action could be to cut the digitized representation 1' just upstream the first bend and just upstream the second bend.
  • the characteristic feature "aperture plane" as of E of fig. 6 gives a further basis for the outermost cutting of the digitized representation 1' e.g. as a function of a further target 24, namely of what kind of a face-plate module is to be provided at the device to be manufactured.
  • OP modules to be incorporated in the device to be manufactured are digitally localized at or within the digitized representation 1' and there is performed an automatic evaluation, where such modules are best located within the digital representation 1', taking e.g. further targets into account, as e.g. predetermined thickness of a shell module for the device. There is performed automatic moving of the modules in and along the digitized representation 1' to automatically provide detailing actions and/or a suggestion or suggestions for geometrically arranging such modules, tailoring the shell module, so that there occurs no module-collision.
  • Additional targets are preferably considered, e.g. least visibility of the CIC from outside, taking different viewing angles into consideration.
  • the detailing actions are performed at the digitized representation 1', whereby preferably the operator OP may interact with such detailing by possibly performing such detailing, as was outlined above, more or less differently than automatically suggested.
  • the expert system 28 basing on expert knowledge is in a most preferred embodiment construed and operated as explained with the help of fig. 8.
  • multiple digitized representations are provided, which after detailing have formerly resulted in satisfying shell and device manufacturing as approved by the involved individual and by the expert and with respect to devices applicable to the same body area as currently involved.
  • the target information from target 24 is additionally input to expert system 28, as detailing may be completely different dependent whether e.g. a CIC is to be manufactured or an outside-the-ear hearing device OTE departing from the same digitized representation of outer ear and ear canal.
  • the respective digitized representation 1 or 1' with the detailing information according to 1d and preferably the target 24 information is input to the expert system 28 to update and improve its database.
  • both approaches namely the approach of detailing based on rules, as outlined above, as well as detailing on the basis of "best match” are combined, whereby detailing suggestions based on the "best match” approach are preferably taken as first approximation for detailing, which approximation is then improved by considering the rules 26.
  • the expert system based on rules and knowledge 26, 28 is preferably continuously updated and improved by data of detailed digitized representations, which have resulted in devices, which optimally satisfy individual's needs. Obviously, devices and especially shells of devices, which turn out to be unsatisfying to the individual and which are e.g. returned by the individual due to bad detailing, are removed or are not entered with their respective digitized detailed representations to the expert systems 26, 28.
  • the detailing step 22 results in a detailed digitized representation 1d.
  • modules for the device to be manufactured namely the shell, possibly a face-plate, electronic modules, etc. has been considered.
  • fig. 7 there is shown an example of a visualized detailed digitized representation 1dV combined with the target-specifically added modules as a face-plate 30, a shell 31, an electronic module 32.
  • the detailed digitized representation 1d is directly applied to a digitally controlled process for performing the shell-manufacturing step 36. Nevertheless, the detailed digitized representation 1d may also be applied for digitally controlling, in an overworking step 38, cast machining if there has been performed scanning 9 of a cast 7 to retrieve the digitized representation 1 and thus a cast 7 has already been used. After mechanically detailing a cast in step 38, in a mould-forming step 40 a mould is formed and therefrom, in shell-forming step 36, the shell. In a still further embodiment the detailed digitized representation 1d is applied for controlling digitally-controlled processing of a mould 40, if e.g. a material is to be used for manufacturing the shell in step 36, which is rather suited for a moulding technique than for a digitally controlled shaping technique.
  • Still another possibility is to manually overwork, in step 38, the cast or even, in step 40, the mould dependent from the information as gained from the detailed digitized representation 1d, e.g. via its visualization at monitor 13.
  • an assembling step 38 the device is assembled with the already produced shell-module from step 36.
  • the step 22 of automatic and preferably interactive detailing 22 in dependency of predetermined targets 24 and on the basis of a rule- and/or knowledge-based expert system 26, 28 are performed within a system according to the present invention, which comprises at least one storing unit for a data set representing a three-dimensional image and a processing unit, the input thereof being operationally connected to an output of the storing unit.
  • the processing unit automatically generates a changed data set as performed by the automatic detailing action as was described.
  • the detailed digitized representation 1d is further preferably stored in a respective storing unit (not shown) at the device as assembled. This leads to the possibility that the individual carries all the information for manufacturing especially his device's shell with him. This information may be easily retrieved and irrespective, where the individual resides and may be transmitted e.g. via internet to a facility with shell-manufacturing installations so as to easily order a replacement shell.

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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)
  • Prostheses (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)
  • Adornments (AREA)
EP03007673A 2003-04-03 2003-04-03 Verfahren zur Herstellung eines am Körper zu tragenden elektronischen Gerätes, welches an die Form eines Körperteils eines Individuums angepasst ist Expired - Lifetime EP1345470B1 (de)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DK03007673T DK1345470T3 (da) 2003-04-03 2003-04-03 Fremgangsmåde til fremstilling af en kropsbåret elektronisk anordning, der kan tilpasses til et individs legemsflade
DE60309363T DE60309363T2 (de) 2003-04-03 2003-04-03 Verfahren zur Herstellung eines am Körper zu tragenden elektronischen Gerätes, welches an die Form eines Körperteils eines Individuums angepasst ist
EP03007673A EP1345470B1 (de) 2003-04-03 2003-04-03 Verfahren zur Herstellung eines am Körper zu tragenden elektronischen Gerätes, welches an die Form eines Körperteils eines Individuums angepasst ist

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP03007673A EP1345470B1 (de) 2003-04-03 2003-04-03 Verfahren zur Herstellung eines am Körper zu tragenden elektronischen Gerätes, welches an die Form eines Körperteils eines Individuums angepasst ist

Publications (3)

Publication Number Publication Date
EP1345470A2 true EP1345470A2 (de) 2003-09-17
EP1345470A3 EP1345470A3 (de) 2003-10-01
EP1345470B1 EP1345470B1 (de) 2006-11-02

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EP03007673A Expired - Lifetime EP1345470B1 (de) 2003-04-03 2003-04-03 Verfahren zur Herstellung eines am Körper zu tragenden elektronischen Gerätes, welches an die Form eines Körperteils eines Individuums angepasst ist

Country Status (3)

Country Link
EP (1) EP1345470B1 (de)
DE (1) DE60309363T2 (de)
DK (1) DK1345470T3 (de)

Cited By (18)

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WO2004105432A2 (en) * 2003-05-15 2004-12-02 Siemens Corporate Research, Inc. Synchronized processing of ear shells for hearing aids
EP1558058A2 (de) * 2005-04-13 2005-07-27 Phonak Ag Verfahren zur Herstellung eines individuell geformten Hörgeräts oder einer individuell geformten Hörhilfe
EP1675430A1 (de) * 2004-12-23 2006-06-28 Phonak Ag Methode zur Produktion eines In-Ohr-Geräts mit einem Spannungsausgleichelement
WO2006117409A2 (en) * 2006-06-14 2006-11-09 Phonak Ag Positioning and orienting a unit of a hearing device relative to individual's head
WO2007059633A1 (en) * 2005-11-25 2007-05-31 Phonak Ag Method for manufacturing a hearing device, fitting and adjusting an existing hearing device and system therefor
EP1858293A1 (de) * 2006-02-03 2007-11-21 Siemens Audiologische Technik GmbH System mit einem automatisierten Werkzeug und dazugehöriges Verfahren zur Entwicklung von Hörhilfen
EP1909537A2 (de) 2006-10-03 2008-04-09 Siemens Audiologische Technik GmbH Schnittsystem und Verfahren für ellipsenförmige Linien zum Entwurf einer Hörhilfegerätemuschel
EP1939776A3 (de) * 2006-12-19 2008-09-03 Siemens Audiologische Technik GmbH Intelligentes Modellierungsverfahren und -system zum Entwurf von Ohrplastiken und Hörhilfen
EP2068282A2 (de) 2007-12-07 2009-06-10 Siemens Corporate Research, INC. Verfahren und System für die Detektion der zweiten Bogenebene von Ohrkanalflächen
US7606381B2 (en) 2004-12-23 2009-10-20 Phonak Ag Method for manufacturing an ear device having a retention element
US7949145B2 (en) 2005-04-13 2011-05-24 Phonak Ag Method of manufacturing an individually shaped hearing device or hearing aid
WO2011044903A3 (en) * 2009-10-16 2011-06-16 3Shape A/S Individually tallored soft components
US8150542B2 (en) 2006-06-14 2012-04-03 Phonak Ag Positioning and orienting a unit of a hearing device relative to individual's head
WO2013149645A1 (en) * 2012-04-02 2013-10-10 Phonak Ag Method for estimating the shape of an individual ear
CN106941653A (zh) * 2017-04-03 2017-07-11 浙江诺尔康神经电子科技股份有限公司 人工耳蜗智能预测系统和方法
CN113039814A (zh) * 2018-11-16 2021-06-25 斯达克实验室公司 耳戴式装置外壳建模
EP3879852A1 (de) * 2020-03-11 2021-09-15 Sonova AG Automatische klassifizierung von ohrabdrücken
EP4404589A1 (de) 2023-01-18 2024-07-24 Sonova AG Gehäuse für ein ohrstück und verfahren zur herstellung eines gehäuses für ein ohrstück

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US8616214B2 (en) 2011-04-06 2013-12-31 Kimberly-Clark Worldwide, Inc. Earplug having a resilient core structure

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Cited By (31)

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Publication number Priority date Publication date Assignee Title
US7308328B2 (en) 2003-05-15 2007-12-11 Siemens Medical Solutions Usa, Inc. Synchronized processing of ear shells for hearing aids
WO2004105432A3 (en) * 2003-05-15 2005-01-27 Siemens Corp Res Inc Synchronized processing of ear shells for hearing aids
WO2004105432A2 (en) * 2003-05-15 2004-12-02 Siemens Corporate Research, Inc. Synchronized processing of ear shells for hearing aids
US7606381B2 (en) 2004-12-23 2009-10-20 Phonak Ag Method for manufacturing an ear device having a retention element
EP1675430A1 (de) * 2004-12-23 2006-06-28 Phonak Ag Methode zur Produktion eines In-Ohr-Geräts mit einem Spannungsausgleichelement
EP1558058A3 (de) * 2005-04-13 2006-01-11 Phonak Ag Verfahren zur Herstellung eines individuell geformten Hörgeräts oder einer individuell geformten Hörhilfe
US7949145B2 (en) 2005-04-13 2011-05-24 Phonak Ag Method of manufacturing an individually shaped hearing device or hearing aid
EP1558058A2 (de) * 2005-04-13 2005-07-27 Phonak Ag Verfahren zur Herstellung eines individuell geformten Hörgeräts oder einer individuell geformten Hörhilfe
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DE60309363D1 (de) 2006-12-14
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DK1345470T3 (da) 2007-03-12
EP1345470A3 (de) 2003-10-01

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