EP1562400B1 - Replaceable protective membrane of listening device of hearing-aids - Google Patents
Replaceable protective membrane of listening device of hearing-aids Download PDFInfo
- Publication number
- EP1562400B1 EP1562400B1 EP20050010122 EP05010122A EP1562400B1 EP 1562400 B1 EP1562400 B1 EP 1562400B1 EP 20050010122 EP20050010122 EP 20050010122 EP 05010122 A EP05010122 A EP 05010122A EP 1562400 B1 EP1562400 B1 EP 1562400B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- membrane
- carrier
- elastic
- mounting tool
- hearing aid
- 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.)
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Links
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- 239000013013 elastic material Substances 0.000 claims description 2
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Images
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
- 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
- H04R2460/17—Hearing device specific tools used for storing or handling hearing devices or parts thereof, e.g. placement in the ear, replacement of cerumen barriers, repair, cleaning hearing devices
Definitions
- the present invention relates to a device as a hearing aid for wearing in the ear or in or on the ear canal according to the preamble of claim 1, a method for producing a protective element for a device, a mounting tool for the assembly and the removal of the protective element on or from a hearing aid and a method for mounting a protective element.
- a rigid, non-sound permeable (rigid, non-sound permeable) membrane is described, which hermetically seals the sound outlet opening of an in-ear hearing aid.
- the membrane is picked up by the listener vibrates, producing sound waves that are similar in frequency and amplitude.
- a hearing aid in which the listener is closed off by a membrane from the eardrum. It is proposed a thin titanium membrane, which can be placed by means of a cap on the sound outlet pipe of the hearing aid.
- the thin titanium membrane is also designed by appropriate surface embossing and a concave or convex shape as an acoustic filter or acoustic lens.
- WO-A-0045617 describes a treatment device having a sound outlet, which is sealed by an acoustically transparent waterproof film.
- the DE 101 04 129 A1 describes a hearing aid with a filter unit containing a membrane or sieve-like filter element.
- the filter element is designed inclined.
- a similar arrangement is also in the DE 102 14 189 B4 described. Here is arranged a relatively large membrane parallel to the ear canal axis and sonicated with a handset. The radiated sound is then radiated through a small slit on the face of the hearing aid shell to the eardrum.
- EP 0 629 101 A1 describes a membrane that not only surrounds the sound input and output ports, but also forms the outermost skin of the hearing aid shell and can be adapted by pouring the interior of the anatomy of the ear canal. This membrane is not interchangeable, but an integral part of the shell.
- the EP 0 548 580 A1 describes a handset for hearing aids, which is protected with an outer membrane against cerumen and moisture. Again, the membrane is not interchangeable but an integral part of the listener.
- the EP 1 434 464 A1 describes a hearing aid in which the sound outlet opening is enclosed by a membrane made of an elastic and flexible thermoplastic elastomer.
- WO 00/03561 A describes a cerumen protection for an in-the-ear hearing aid and a corresponding tool for the assembly and the removal of the cerumen protection.
- the tool consists of a rod-shaped body, at the first end of the mounting tool and at the second end of the disassembly tool is arranged.
- the dismantling tool in this case has a gripping or latching member. When inserting the disassembly tool into the interior of the wax guard, the cerumen guard can be removed from the hearing aid by means of the gripping or latching member.
- the transmission properties of large membranes are better than those of small ones.
- the maximum diameter is limited by the ear canal geometry, or the desired “fitting rate”.
- the membrane thickness and the material properties also have an influence on the sound transmission. So, this is true Optimize factors for a given diameter to achieve optimal sound transmission.
- a membrane as a hearing protection must be acoustically coupled to the listener so that abrupt cross-sectional changes and thus impedance jumps are avoided.
- the handset is attached to the shell of the hearing aid via a sound tube. It must therefore be found a mechanical coupling of the tube diameter, which is usually about half of the membrane diameter to the membrane, taking into account the above points.
- a cerumen protection system therefore has to be so easy to assemble that no additional time is required in the laboratory.
- the membrane In the event that the membrane is heavily soiled or damaged, it must be possible to replace it.
- the replacement of the membrane should be possible not only for the service technician but also for the hearing care professional or the hearing aid wearer. It must therefore be provided a tool that allows the insertion as well as the removal of the membrane. It is important to ensure that the filigree membrane is not damaged when inserting and no dirt can get into the sound outlet when removing.
- the present invention has the object to supply the above-mentioned five problem areas at least partially a solution.
- the present invention proposes a device according to the wording of claim 1.
- Proposed is a device as a hearing aid, worn in the ear or in or on the ear canal, comprising at least one acoustic or acoustic outlet opening with a protective element to prevent contamination of the hearing aid, wherein the protective element is a thin, at least almost flexible or elastic membrane, for example an elastomer or a thermoplastic polymer.
- the protective element is arranged at least largely integrally embedded in the wall of a housing or a protective shell of the device or the hearing aid.
- the protective element has an at least approximately circular, cylinder-like body or carrier, consisting of a preferably thermally conductive material, wherein the one opening of the body or carrier, preferably that of the device outwardly directed opening of the flexible Membrane is covered or completed.
- the surface of the inner passageway of the carrier or of the cylinder is designed conically such that the diameter of the inner passage is tapered from the outer opening, covered by the membrane against the opening, directed against the interior of the hearing aid.
- the membrane is preferably made of an elastomeric or elastomeric polymer, such as polyurethane, synthetic rubber, butadiene-styrene copolymer, silicone rubber, etc.
- the membrane has a thickness of ⁇ 30 ⁇ m, preferably ⁇ 20 ⁇ m, such as about 15 ⁇ m.
- the annular cylinder or support is preferably made of a metal material such as stainless steel. Alternatively, a plastic compatible with the manufacturing methods described below may be used.
- a method for manufacturing a protective element for a device as described above.
- a film of an elastic or flexible polymer is placed on a substrate, then the cylindrical body or carrier, consisting of thermally conductive material is guided against the membrane, wherein either the film or the cylinder-like body or carrier is heated.
- the body or support is pressed against the membrane whereupon it is welded by the terminal body or support edge and simultaneously removed from the film, which is made possible by appropriate design of the support cross-section.
- the cylinder-like body or carrier with the membrane is removed again from the film and can now be introduced into a hearing aid as a protective element or arranged in the housing wall.
- FIG. 1a schematically shows a sketch of the standard structure of the eardrum end of an in-ear hearing aid 1 with a recessed in the housing 3 membrane wax cover 10.
- the cerumen 10 is placed directly into a designated recess 11 in the housing or shell 3.
- the recess 11 is an integral part of the housing wall or shell 3 and is constructed together with the shell.
- the recess 11 may be configured as a separate component 20, which is mounted in a designated bore 22 in the shell 3, as in FIG. 2a is shown.
- At the lower end of the recess 11 is an opening 21 into which the sound tube 7 is glued. This tube also holds the handset 5 in position.
- the receiver 5 is additionally surrounded by a bearing 9, which is intended to dampen mechanical vibrations.
- a ventilation equalization channel 17 is also visible to allow pressure equalization with the inner ear to the outside.
- FIG. 1b shows the corresponding structure for a closed handset module 4, which can be used in an in-ear hearing aid as in US Pat. No. 6,813,364 B1 described, or which can be used as an external speaker of a rear earpiece in the ear.
- the earphone 12 is enclosed by elastic bearings 14 in a housing 6 which has a sound exit opening 11 which is designed so that the protective element 10 can be inserted and thus the membrane 15 forms the outermost end of the system.
- FIG. 2b again schematically shows a sketch of the membrane wax guard 10 in section.
- the membrane 15 is mounted on a support 13, which is inserted into the cavity 11.
- the cavity 11 has the corresponding depth that the membrane 15 is flush with the housing surface.
- the carrier 13 on the outside has a non-constant cross-section 13, ie provided is a lateral step 18, which rests on a corresponding saddle in the cavity 11 and an inner step 57 which allows the replacement.
- the inner opening of the carrier in particular from the small tube diameter 21 to the larger outer diameter, covered by the membrane 15, is conical.
- the conical surface is provided with the reference numeral 19.
- FIG. 3 shows a typical frequency response of an in-ear hearing aid with and without membrane. It can be seen that a broadband attenuation of about 2 dB is achieved by the membrane. This is due to the internal damping of the membrane material and the inertia of the membrane. It must therefore be taken into account in the hearing aid adjustment a corresponding reserve to compensate for the membrane damping.
- FIG. 4 schematically shows a possible application of a membrane on a support 13 for the preparation of a corresponding protective element 10.
- a film 33 is placed, consisting of that polymer which is suitable for forming the membrane.
- a gripping element 35 of the carrier 13 is held and lowered against the arranged on the base 31 film 33.
- the film material is sintered or welded on the edge 37.
- This can be done either by heating the film 33 on the substrate 31, or by heating the preferably made of a thermally conductive material carrier 13.
- the membrane 15 is arranged on the carrier 33 and the protective element can be embedded in the cavity of a Hörowskiwandung. This process will now be described below with reference to Figures 5 ff be described in more detail.
- FIG. 5 shows in perspective a tool or assembly tool 41, by means of which the CerumenschutzElement can be arranged both in the housing wall, as well as can be removed again from this.
- the tool has two correspondingly configured ends 43 and 45. It shows FIG. 6 the end 43, which is provided for the assembly or the introduction of Cerumenschutzes in the housing.
- the tool has a circular cylinder-like end 49, which corresponds approximately to the diameter of the upper or outer edge 37 of the cerumen guard. Slightly set back from the end of an elastic jacket 47 is provided, which extends beyond embracing the end 49 outside.
- This elastic coat is dimensioned such that an external gripping the outer contour of the upper edge 37 of the protective element in the region of the membrane is possible.
- the elastic sheath 47 may be made of the same material as the end 43 and have resilient properties by appropriate design, or it may be made of a rubber-elastic material such as an elastomer or a thermoplastic elastomer and mounted as an additional component on the end 43, or be integral with it, for example via a 2K injection molding process.
- a rubber-elastic material such as an elastomer or a thermoplastic elastomer and mounted as an additional component on the end 43, or be integral with it, for example via a 2K injection molding process.
- the description refers to a rubber jacket.
- FIG. 8 On the assembly itself should be referring to FIG. 8 be discussed in more detail.
- FIG. 7 The opposite end of the tool 41 is in FIG. 7 represented where a cylinder-like disassembly 51 is disposed at the end 45 of the tool 41.
- the dismantling element 51 preferably has a latching element 53 at the end, with respect to its function with reference to FIG FIG. 9 will be discussed in more detail.
- FIG. 8 shows now with reference to the three representations a), b) and c) the assembly process for the insertion of a protective element 10 in the cavity 11 of an in-ear hearing aid.
- FIG. 8a the cerumen protection or the carrier 13 held by the outside encompassing rubber-elastic jacket 47 of the tool 41.
- FIG. 8b shows the insertion of the carrier 13 in the cavity 11, wherein now the outer encompassing rubber sheath 47 abuts the housing wall 3.
- the sheath 47 can be compressed during insertion of the carrier 13, as in FIG. 8c shown.
- the tool 41 can be lifted upwards without the element being removed from the cavity 11 again.
- the dismantling element 51 is moved with the terminal latching member 53 against the diaphragm 15 of the protective element, and pressed together with the membrane against the lower tapered opening 21 in the body or carrier 13. Due to the high tensile strength of the membrane 15, this is not pierced or severed but stretched with the disassembly 51, which is advantageous in order to prevent contamination of the listener in the hearing aid.
- the laterally projecting latching members 53 engage in corresponding recesses 57 in the inner wall of the carrier 13, with which now the protective element can be pulled out of the cavity 11.
- the cerumen protection can also be replaced by a person who uses the hearing aid.
- illustrated devices, elements and tools are only examples, which can be modified, modified or supplemented by further elements in any desired manner.
- suitable materials for the preparation of the membrane instead of the aforementioned polymer materials.
- the support or body of the cerumen protective element can also be produced from any suitable materials, preferably using a material which is highly thermally conductive and heat-resistant, such as a fiber-reinforced polymer, for facilitating the simplified application of the membrane to the support, as described below in reference to FIG. 4 explained in more detail.
- the tool described with reference to the FIGS. 5 to 7 is merely an example that does not necessarily have to be rod-shaped.
- a rubber-like material such as a kind of rubber hose is arranged to arrange the protective element in the hearing aid
- a disassembly element or a gripping element may be provided, for example, the terminal a rough contour has to attacking in the inner cone of the wearer or body to remove this again from the hearing aid.
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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)
- Details Of Audible-Bandwidth Transducers (AREA)
- Headphones And Earphones (AREA)
Description
Die vorliegende Erfindung betrifft eine Vorrichtung als Hörhilfe zum Tragen im Ohr bzw. im oder am Gehörgang gemäss dem Oberbegriff nach Anspruch 1, ein Verfahren zum Herstellen eines Schutzelementes für eine Vorrichtung, ein Montagewerkzeug für die Montage und das Wiederentfernen des Schutzelementes an einem bzw. von einem Hörgerät sowie ein Verfahren zur Montage eines Schutzelementes.The present invention relates to a device as a hearing aid for wearing in the ear or in or on the ear canal according to the preamble of claim 1, a method for producing a protective element for a device, a mounting tool for the assembly and the removal of the protective element on or from a hearing aid and a method for mounting a protective element.
Insbesondere bei Im-Ohr Hörhilfen bzw. Hörgeräten besteht die Problematik, dass beim akustischen Ausgang des Hörgerätes gegen das Innenohr hin Verschmutzung, insbesondere durch Cerumen, auftreten kann.Particularly in the case of in-ear hearing aids or hearing aids, there is the problem that contamination, in particular through cerumen, can occur during the acoustic output of the hearing aid against the inner ear.
Aus dem Stand der Technik sind eine Reihe von Massnahmen bekannt, um die Cerumenverschmutzung eines Im-Ohr Hörgerätes zu verhindern bzw. mindestens stark zu reduzieren. Vorgeschlagen wird in der Regel die Verwendung einer Membran als Hörerschutz bei Im-Ohr Hörgeräten. Derartige Membranen sind in einer Vielzahl von früheren Publikationen beschrieben.From the prior art, a number of measures are known to prevent the cerumen contamination of an in-ear hearing aid or at least greatly reduced. As a rule, the use of a membrane as a hearing protection in in-ear hearing aids is proposed. Such membranes have been described in a variety of previous publications.
In
Im
In der
Ein ähnliches System wird in
Auch in der
Auch bei Hinter-dem-Ohr(HdO)-Geräten ist der Einsatz von Membranen bereits beschrieben worden. So wird beispielsweise in der
Die
Auch die
Die
Die
In der
Der Ansatz, den Hörer eines Hörgerätes mit einer Membran hermetisch abzuschliessen umfasst fünf Problemfelder, welche in der vorgeschlagenen Erfindung angegangen werden:The approach of hermetically sealing the listener of a hearing aid with a membrane comprises five problem areas, which are addressed in the proposed invention:
Wie allgemein bekannt ist, sind die Transmissionseigenschaften von grossen Membranen besser als die von kleinen. Bei der Anwendung als Hörerschutz im Hörgerät ist der maximale Durchmesser durch die Ohrkanalgeometrie, bzw. die erwünschte "fitting rate" limitiert. Neben dem Durchmesser haben auch die Membrandicke und die Materialeigenschaften (E-Modul, Poisson-Zahl, Dichte) einen Einfluss auf die Schallübertragung. Es gilt also, diese Faktoren für einen gegebenen Durchmesser zu optimieren, um eine optimale Schallübertragung zu erreichen.As is well known, the transmission properties of large membranes are better than those of small ones. When used as hearing protection in the hearing aid, the maximum diameter is limited by the ear canal geometry, or the desired "fitting rate". In addition to the diameter, the membrane thickness and the material properties (modulus of elasticity, Poisson number, density) also have an influence on the sound transmission. So, this is true Optimize factors for a given diameter to achieve optimal sound transmission.
Eine Membran als Hörerschutz muss akustisch so an den Hörer angekoppelt werden, dass abrupte Querschnittsänderungen und damit Impedanzsprünge vermieden werden. In der Regel wird der Hörer über einen Schallleitungsschlauch an die Schale des Hörgerätes befestigt. Es muss also eine mechanische Ankoppelung des Schlauchdurchmessers, welcher in der Regel etwa die Hälfte des Membrandurchmessers beträgt an die Membran gefunden werden, wobei die obigen Punkte berücksichtigt werden.A membrane as a hearing protection must be acoustically coupled to the listener so that abrupt cross-sectional changes and thus impedance jumps are avoided. As a rule, the handset is attached to the shell of the hearing aid via a sound tube. It must therefore be found a mechanical coupling of the tube diameter, which is usually about half of the membrane diameter to the membrane, taking into account the above points.
Der Montageaufwand im Im-Ohr Labor trägt wesentlich zu den Gesamtkosten eines In-dem-Ohr(IdO)-Hörgerätes bei. Ein Cerumenschutzsystem muss deshalb so einfach zu montieren sein, dass kein zusätzlicher Zeitaufwand im Labor entsteht.The assembly effort in the in-the-ear laboratory contributes significantly to the overall cost of an in-the-ear (ITE) hearing aid. A cerumen protection system therefore has to be so easy to assemble that no additional time is required in the laboratory.
Eine Membran schützt zwar den Hörer wirksam gegen Feuchtigkeit und Cerumen, ist aber selber allen diesen Umweltfaktoren ausgesetzt. Im täglichen Umgang muss es deshalb möglich sein, dass die Membran regelmässig gereinigt werden kann, um Ablagerungen von Cerumen zu entfernen, welche die akustischen Eigenschaften beeinträchtigen können. Dies muss bei der mechanischen Ausgestaltung der Membran und weiterer Elemente berücksichtigt werden.Although a membrane effectively protects the listener against moisture and cerumen, it is itself exposed to all these environmental factors. In daily use, it must therefore be possible for the membrane to be cleaned regularly to remove deposits of cerumen, which may affect the acoustic properties. This must be taken into account in the mechanical design of the membrane and other elements.
Für den Fall, dass die Membran stark verschmutzt oder beschädigt ist, muss die Möglichkeit bestehen, sie auszuwechseln. Das Auswechseln der Membran sollte dabei nicht nur für den Servicetechniker sondern auch für den Hörgeräteakustiker oder den Hörgeräteträger möglich sein. Es muss daher ein Werkzeug zur Verfügung gestellt werden, welches das Einsetzen wie auch das Entfernen der Membran ermöglicht. Dabei ist darauf zu achten, dass beim Einsetzen die filigrane Membran nicht beschädigt wird und beim Entfernen kein Schmutz in die Schallaustrittsöffnung gelangen kann.In the event that the membrane is heavily soiled or damaged, it must be possible to replace it. The replacement of the membrane should be possible not only for the service technician but also for the hearing care professional or the hearing aid wearer. It must therefore be provided a tool that allows the insertion as well as the removal of the membrane. It is important to ensure that the filigree membrane is not damaged when inserting and no dirt can get into the sound outlet when removing.
Entsprechend liegt der vorliegenden Erfindung die Aufgabe zugrunde, die oben angeführten fünf Problemkreise mindestens teilweise einer Lösung zuzuführen.Accordingly, the present invention has the object to supply the above-mentioned five problem areas at least partially a solution.
Entsprechend schlägt die vorliegende Erfindung eine Vorrichtung gemäss dem Wortlaut nach Anspruch 1 vor.Accordingly, the present invention proposes a device according to the wording of claim 1.
In
Vorgeschlagen wird eine Vorrichtung als Hörhilfe, getragen im Ohr bzw. im oder am Gehörgang, aufweisend mindestens eine Schall- bzw. Akustikaustrittsöffnung mit einem Schutzelement zum Verhindern der Verschmutzung der Hörhilfe, wobei das Schutzelement eine dünne, wenigstens nahezu flexible oder elastische Membran beispielsweise aus einem Elastomer oder aus einem thermoplastischen Polymer aufweist. Das Schutzelement ist wenigstens weitgehendst integral in der Wandung eines Gehäuses bzw. einer Schutzschale der Vorrichtung bzw. der Hörhilfe eingelassen angeordnet.Proposed is a device as a hearing aid, worn in the ear or in or on the ear canal, comprising at least one acoustic or acoustic outlet opening with a protective element to prevent contamination of the hearing aid, wherein the protective element is a thin, at least almost flexible or elastic membrane, for example an elastomer or a thermoplastic polymer. The protective element is arranged at least largely integrally embedded in the wall of a housing or a protective shell of the device or the hearing aid.
Gemäss einer Ausführungsvariante weist das Schutzelement einen wenigstens nahezu kreisrunden, zylinderartigen Körper oder Träger auf, bestehend aus einem, vorzugsweise wärmeleitenden, Material, wobei die eine Öffnung des Körpers oder Trägers, vorzugsweise diejenige von der Vorrichtung aus gesehen nach aussen gerichtete Öffnung, von der flexiblen Membran überdeckt bzw. abgeschlossen ist.According to one embodiment variant, the protective element has an at least approximately circular, cylinder-like body or carrier, consisting of a preferably thermally conductive material, wherein the one opening of the body or carrier, preferably that of the device outwardly directed opening of the flexible Membrane is covered or completed.
Die Oberfläche des inneren Durchganges des Trägers bzw. des Zylinders ist derart konusartig ausgebildet, dass der Durchmesser des inneren Durchganges von der äusseren Öffnung, überdeckt durch die Membran gegen die Öffnung, gerichtet gegen das Innere der Hörhilfe verjüngend ausgebildet ist.The surface of the inner passageway of the carrier or of the cylinder is designed conically such that the diameter of the inner passage is tapered from the outer opening, covered by the membrane against the opening, directed against the interior of the hearing aid.
Die Membran besteht vorzugsweise aus einem elastomeren oder gummielastischen Polymer, wie beispielsweise Polyurethan, Synthesekautschuk, Butadien-Styrol-Copolymer, Silikonkautschuk, etc. Die Membran weist dabei eine Dicke auf von < 30µm, vorzugsweise < 20µm, wie beispielsweise ca. 15µm. Der ringartige Zylinder oder Träger besteht vorzugsweise aus einem metallenen Werkstoff wie beispielsweise rostfreiem Stahl. Alternativ dazu kann auch ein Kunststoff eingesetzt werden, der mit den unten beschriebenen Herstellungsverfahren kompatibel ist.The membrane is preferably made of an elastomeric or elastomeric polymer, such as polyurethane, synthetic rubber, butadiene-styrene copolymer, silicone rubber, etc. The membrane has a thickness of <30μm, preferably <20μm, such as about 15μm. The annular cylinder or support is preferably made of a metal material such as stainless steel. Alternatively, a plastic compatible with the manufacturing methods described below may be used.
Weitere bevorzugte Ausführungsvarianten der erfindungsgemässen Vorrichtung bzw. Hörhilfe sind in den abhängigen Ansprüchen charakterisiert.Further preferred embodiments of the inventive device or hearing aid are characterized in the dependent claims.
Weiter vorgeschlagen wird ein Verfahren zum Herstellen eines Schutzelementes für eine Vorrichtung wie vorab beschrieben. Gemäss dem vorgeschlagenen Verfahren wird eine Folie aus einem elastischen oder flexiblen Polymer auf einer Unterlage angeordnet, anschliessend wird der zylinderartige Körper bzw. Träger, bestehend aus wärmeleitendem Material gegen die Membran geführt, wobei entweder die Folie oder der zylinderartige Körper oder Träger erhitzt wird. Nun wird der Körper oder Träger gegen die Membran gedrückt worauf diese durch den endständigen Körper- oder Trägerrand angeschweisst wird und gleichzeitig aus der Folie herausgelöst wird, was durch entsprechende Gestaltung des Trägerquerschnittes möglich gemacht wird. Anschliessend wird der zylinderartige Körper oder Träger mit der Membran wieder von der Folie entfernt und kann nun in eine Hörhilfe als Schutzelement eingeführt bzw. in der Gehäusewandung angeordnet werden.Further proposed is a method for manufacturing a protective element for a device as described above. According to the proposed method, a film of an elastic or flexible polymer is placed on a substrate, then the cylindrical body or carrier, consisting of thermally conductive material is guided against the membrane, wherein either the film or the cylinder-like body or carrier is heated. Now the body or support is pressed against the membrane whereupon it is welded by the terminal body or support edge and simultaneously removed from the film, which is made possible by appropriate design of the support cross-section. Subsequently, the cylinder-like body or carrier with the membrane is removed again from the film and can now be introduced into a hearing aid as a protective element or arranged in the housing wall.
Für die Montage des Schutzelementes wird weiter ein Montagewerkzeug gemäss dem Wortlaut nach Anspruch 13 vorgeschlagen. Bevorzugte Ausführungsvarianten des Montagewerkzeuges sind in abhängigen Ansprüchen charakterisiert.For mounting the protective element, an assembly tool according to the wording of
Schliesslich wird ein Verfahren für die Montage eines Schutzelementes in einer Hörhilfe bzw. einem Gehäuse eines Im-Ohr Hörgerätes gemäss dem Wortlaut nach Anspruch 18 vorgeschlagen.Finally, a method for mounting a protective element in a hearing aid or a housing of an in-ear hearing aid according to the wording of
Die Erfindung wird nun beispielsweise und unter Bezug auf die beigefügten Figuren näher erläutert.The invention will now be explained in more detail by way of example and with reference to the accompanying drawings.
Dabei zeigen:
- Fig. 1a
- im Schnitt den standardmässigen Aufbau des trommelfellseitigen Endes eines Im-Ohr Hörgerätes mit einem erfindungsgemässen Schutzelement,
- Fig. 1b
- ein geschlossenes Hörermodul, welches in ein Im-Ohr Hörgerät eingesetzt oder als externer Hörer für ein Hinter-dem-Ohr Gerät verwendet werden kann,
- Fig. 2a
- im Schnitt ausschnittsweise den Bereich des eingesetzten Schutzelementes mit zusätzlicher Haltevorrichtung als separates Bauteil,
- Fig. 2b
- im Schnitt ausschnittsweise den Bereich des eingesetzten Schutzelementes mit einer in-situ in der Schale aufgebauten Haltevorrichtung,
- Fig. 3
- den typischen Frequenzgang eines Im-Ohr Hörgerätes mit und ohne Membran bzw. Schutzelement,
- Fig. 4
- schematisch dargestellt einen möglichen Herstellprozess für die Herstellung eines Schutzelementes,
- Fig. 5
- ein Montagewerkzeug für das Montieren bzw. Wiederentfernen eines Schutzelementes in Perspektive,
- Fig. 6
- dasjenige Ende des Montagewerkzeuges geeignet für die Montage,
- Fig. 7
- dasjenige Ende des Montagewerkzeuges geeignet für das Wiederentfernen des Schutzelementes,
- Fig. 8a-c
- den Montagevorgang des Schutzelementes in die Gehäusewandung eines Im-Ohr Hörgerätes, und
- Fig. 9a-c
- das Wiederentfernen des Schutzelementes aus dem Gehäuse.
- Fig. 1a
- on average the standard structure of the eardrum end of an in-ear hearing aid with a protective element according to the invention,
- Fig. 1b
- a closed earphone module, which can be used in an in-ear hearing device or used as an external earpiece for a behind-the-ear device,
- Fig. 2a
- Sectionally section of the area of the protective element used with additional holding device as a separate component,
- Fig. 2b
- Sectionally section of the area of the protective element used with a holding device constructed in-situ in the shell,
- Fig. 3
- the typical frequency response of an in-ear hearing aid with and without membrane or protective element,
- Fig. 4
- schematically shows a possible manufacturing process for the production of a protective element,
- Fig. 5
- an assembly tool for mounting or removing a protective element in perspective,
- Fig. 6
- the end of the assembly tool suitable for mounting,
- Fig. 7
- that end of the assembly tool suitable for the removal of the protective element,
- Fig. 8a-c
- the assembly process of the protective element in the housing wall of an in-ear hearing aid, and
- Fig. 9a-c
- the removal of the protective element from the housing.
Die
Insbesondere
Die skizzierte Erfindung geht alle oben besprochenen Problemfelder an:
- 1. Durch die Wahl des Membranmaterials sowie die Ausgestaltung des Trägers können die oben diskutierten Probleme reduziert werden: So besteht die Membran aus einer sehr dünnen Folie, < 30µm, vorzugsweise < 20µm, wie beispielsweise einer 15µm Polyurethan-Folie. Durch die geringe Foliendicke und den tiefen E-Modul des Materials wird die Biegesteifigkeit der Membran für einen gegebenen Aussendurchmesser reduziert. Die Folie wird auf den Träger aufgeklebt, wie z.B. mit einem dauerelastischen, UVaushärtenden Klebstoff. Es sind aber auch andere Verbindungsarten denkbar, wie z.B. Schweissen mittels Induktion, Hochfrequenz oder Temperatur/Laser. Ein Verfahren zum Aufbringen der Membran wird im Übrigen unter Bezug auf
Figur 4 näher beschrieben. Um für einen Druckausgleich zu sorgen, ohne die akustischen Eigenschaften zu verändern, kann in die Membran auch ein Loch von wenigen Mikrometern Durchmesser eingebracht werden. Beispielsweise kann mittels eines Laserstrahls ein Loch von ca. 30 Mikrometern Durchmesser eingebracht werden. Um eine möglichst grosse Fit-Rate zu erreichen wird der Durchmesser der schwingenden Membran unter 3mm gehalten. Das ermöglicht einen Einsatz des Cerumenschutzes auch bei Im-Ohr Hörgeräten kleinster Bauform wie z.B. Im Ohrkanal-Hörgerät (CIC). - 2. Die optimale akustische Ankoppelung vom Hörerausgang bzw. dem Schallschlauch auf die Cerumenschutz-Membran wird über einen konusförmigen Übergang 19 im Trägerteil erreicht. Dadurch werden Impedanzsprünge, welche durch plötzliche Querschnittsänderungen hervorgerufen werden, verhindert. Dadurch wird auch das zwischen Hörermembran und Cerumenschutz-Membran bewegte Luftvolumen weiter reduziert, was ebenfalls einen positiven Effekt auf die Dämpfung hat.
- 3.
Die Vertiefung 11 für den Cerumenschutz kann in modernen additiven Fertigungsverfahren für Hörgeräteschalen, wie z.B. selektives Lasersintern (SLS) oder Stereolithographie (SLA), in-situ mit der schale aufgebaut werden. Dadurch entfallen zusätzliche Schritte bei der Schalenfertigung für die Montage eines Cerumenschutz-Systems im Im-Ohr Labor. Bei einem geschlossenen Hörermodul 4 für Im-Ohr Hörgeräte oder als externer Hörer für Hinter-dem-Ohr Hörgeräte wie inFigur 1b gezeigt ist, kann dieVertiefung 11 als integraler Bestandteil des Hörergehäuses 6 ausgestaltet werden. Der Hörer wird standardmässig mittels Hörerschlauch und Lagerung montiert und anschliessend wird der Träger mit Membran einfach in die dafür vorgesehene Öffnung in der Schale hineingedrückt. Mit einem dafür vorgesehenen Werkzeug, wie später unter Bezug aufFiguren 5 ff beschrieben, kann der Cerumenschutz ausgewechselt werden. - 4. Der Reinigungsaufwand des Hörgerätes wird durch die beschriebene Membran-Lösung minimal gehalten. Dadurch dass die
Membran 15 bündig zur Aussenkontur der Hörgeräteschale 3 verläuft, können Verschmutzungen oder Ablagerungen von Cerumen auf der Schale oder auf der Membran durch einfaches Abwischen des Gerätes mit einem feuchten Tuch entfernt werden. Hartnäckigere Ablagerungen können mechanisch mit einer weichen Bürste entfernt werden. Beides sind Handlungen, die dem Hörgeräteträger bekannt sind. Durch die Wahl des Membranmaterials, welches eine sehr hohe Reissdehnung von über 500% hat, wird das Risiko, die Membran beim Reinigen zu verletzen sehr stark reduziert. Wenn die Membran mechanisch beschädigt ist oder die Dämpfung trotz Reinigung mit der Zeit zunimmt, kann die Membran vom Akustiker oder aber vom Hörgeräteträger selber ausgewechselt werden. Als Membranmaterialien eignen sich insbesondere Elastomere und gummielastische Polymere, wie beispielsweise das oben erwähnte Polyurethan, weiter hochreissfeste gummiartige Materialien, wie beispielsweise Synthesekautschuk, Butadien-Styrol-Copolymere, Silikonkautschuk, etc. - 5. Das Einsetzen und Entfernen der Membran ist weiter unten anhand der
Figuren 8 und 9 beschrieben. Insbesonderewird ein Werkzeug 41 vorgestellt, dass es ermöglicht, den Cerumenschutz einzusetzen, ohne die Membran zu beschädigen. Es wird auch gezeigt, wie der Cerumenschutz entfernt werden kann, ohne dass Schmutzpartikel in die Schallaustrittöffnung des Hörers gelangen.
- 1. By choosing the membrane material and the design of the carrier, the problems discussed above can be reduced: Thus, the membrane consists of a very thin film, <30μm, preferably <20μm, such as for example, a 15μm polyurethane film. Due to the low film thickness and the low modulus of elasticity of the material, the flexural rigidity of the membrane is reduced for a given outside diameter. The film is adhered to the carrier, such as with a permanently elastic, UV-curing adhesive. But there are also other types of connection conceivable, such as welding by induction, high frequency or temperature / laser. Incidentally, a method of applying the membrane will be described with reference to FIG
FIG. 4 described in more detail. In order to provide pressure equalization without altering the acoustic properties, a hole of a few micrometers in diameter can be introduced into the membrane. For example, a hole of approximately 30 micrometers in diameter can be introduced by means of a laser beam. In order to achieve the largest possible fit rate, the diameter of the vibrating membrane is kept below 3mm. This allows the use of cerumen protection even with in-ear hearing aids of the smallest design, such as in the ear canal hearing aid (CIC). - 2. The optimum acoustic coupling from the receiver outlet or the sound tube to the cerumen protection membrane is achieved via a cone-shaped transition 19 in the carrier part. As a result, impedance jumps, which are caused by sudden cross-sectional changes, prevented. As a result, the volume of air moved between the receiver membrane and the cerumen protection membrane is further reduced, which likewise has a positive effect on the attenuation.
- 3. The
reticulum recess 11 may be constructed in-situ with the shell in modern additive manufacturing processes for hearing aid trays, such as selective laser sintering (SLS) or stereolithography (SLA). This eliminates additional steps in the shell production for the installation of a cerumen protection system in the in-ear laboratory. In aclosed earphone module 4 for in-ear hearing aids or as an external earphone for behind-the-ear hearing aids as inFIG. 1b is shown, therecess 11 can be configured as an integral part of thereceiver housing 6. The receiver is mounted as standard by means of a receiver tube and storage and then the carrier with membrane is simply pressed into the opening in the bowl. With a dedicated tool, as later with reference toFigures 5 ff, the cerumen protection can be replaced. - 4. The cleaning of the hearing aid is minimized by the described membrane solution. Characterized in that the
membrane 15 is flush with the outer contour of thehearing aid shell 3, soiling or deposits of cerumen on the shell or on the membrane can be removed by simply wiping the device with a damp cloth. Stubborn deposits can be removed mechanically with a soft brush. Both are actions that are known to the hearing aid wearer. By choosing the membrane material, which has a very high elongation at break of over 500%, the risk of violating the membrane during cleaning is greatly reduced. If the membrane is mechanically damaged or the damping increases despite cleaning over time, the Membrane by the acoustician or the hearing aid wearer himself be replaced. Particularly suitable as membrane materials are elastomers and rubber-elastic polymers, such as the above-mentioned polyurethane, further high-tensile-strength rubber-like materials, such as, for example, synthetic rubber, butadiene-styrene copolymers, silicone rubber, etc. - 5. The insertion and removal of the membrane is below based on the
FIGS. 8 and 9 described. In particular, atool 41 is presented that makes it possible to use the wax guard, without damaging the membrane. It also shows how the cerumen protection can be removed without dirt particles entering the sound outlet of the listener.
Sobald der frontseitige Rand 37 des Trägers oder Körpers 13 auf der Folie 33 auftrifft, wird das Folienmaterial am Rand 37 angesintert bzw. angeschweisst. Dies kann entweder durch Erhitzen der Folie 33 auf der Unterlage 31 erfolgen, oder aber, durch Erhitzen des vorzugsweise aus einem wärmeleitenden Material bestehenden Trägers 13. Durch das Ansintern bzw. Anschweissen der Membran am Träger 13 wird diese gleichzeitig aus der Folie 33 herausgelöst, worauf das Greiforgan 35 wieder von der Unterlage 31 entfernt werden kann. Nun ist die Membran 15 auf dem Träger 33 angeordnet und das Schutzelement kann in die Kavität einer Hörgerätewandung eingelassen werden. Dieser Vorgang soll nun nachfolgend unter Bezug auf die
Das entgegengesetzte Ende des Werkzeuges 41 ist in
Das Wiederentfernen des Schutzelementes aus der Kavität 11 erfolgt mittels des anderen Endes des Werkzeuges 41, wie schematisch unter Bezug auf die
Aufgrund der Ausgestaltung des Schutzelementes und unter Verwendung des Werkzeuges, dargestellt in den
Bei den in den
Claims (18)
- Device as hearing aid to be worn in the ear or in or at the auditory channel comprising at least a sound or acoustic exit opening with a protection element (10) to prevent contamination of the device, the element (10) comprises a thin at least almost flexible or elastic membrane (15) made of a thermoplastic polymer, characterized in that the membrane (15) has an elongation at break of more than 500%.
- Device according to claim 1, characterized in that the element (10) is at least almost integrally arranged within the wall of a housing of the device or within a cavity (11) or a protection bowl of the device.
- Device according to one of the claims 1 or 2, characterized in that the element (10) comprises an at least almost circular cylinder-like body or carrier (13), whereby the one opening, preferably the opening of the body or carrier guided towards outside, seen from the device or hearing aid, is covered or terminated by the flexible membrane (15).
- Device according to claim 3, characterized in that the inside surface (19) of the cylinder-like body or carrier is tapered directed towards the inner opening (21), which means diameter-tapered shaped towards the inside of the device.
- Device according to one of the claims 1 to 4, characterized in that the membrane (15) is made of an elastomeric or rubber-elastic polymer, such as e.g. polyurethane, synthetic rubber, butadienestyrene-copolymere, silicone rubber, etc.
- Device according to one of the claims 1 to 5, characterized in that the membrane (15) does have a thickness of < 30µm, preferably < 20µm, such as e.g. approximately 15µm.
- Device according to one of the claims 3 to 6, characterized in that the cylinder-like body or carrier (13) is made of a metal such as e.g. stainless steel.
- Device according to one of the claims 2 to 7, characterized in that the element (10) is such inserted arranged within the housing wall (3) of the device so that the membrane (15) is almost in line with the outer wall surface.
- Device according to one of the claims 3 to 8, characterized in that the membrane (15) is arranged or bonded to the cylinder-like body or carrier by adherence or by welding.
- Device according to one of the claims 1 to 9, characterized in that the membrane (15) does have a diameter of less than 3 mm.
- Device according to one of the claims 1 to 10, characterized in that the membrane (15) comprises a pressure compensation-bore with a diameter of approximately 30 µm or smaller.
- Process for the production of a protection element (10) for a device according to one of the claims 1 to 11, characterized in that a thin film (33), made of an elastomeric or flexible polymer, is arranged on a substrate and that the cylinder-like carrier or body (13), consisting of a heat-conductive material, is heated and moved towards the film (33), whereby at abutting the body or carrier to the film a front-side shaped circular border (37) of the body or carrier is welding the film and is releasing a membrane out of the film so that the such produced membrane is firmly bonded to the carrier or body, which afterwards is removed from the film and is cooled.
- Mounting tool for the mounting and the removing of a protection element (10) out of a hearing device wall in the area of a sound or acoustic exit opening, characterized in- an almost rod-like body (41), with- a terminally arranged tube-like elastic jacket (47), which surmounts one end (47) and which is dimensioned such that it can hold by encompassing a border (37) of the end of a cylinder-like body or carrier (13) comprising the membrane (15) anda removing element arranged at the other end, comprising a terminally arranged gripping or engaging means (53), such that at inserting of the removing element into the interior of the carrier or body the membrane is pressed or pulled into the interior of the element without breaking through or cutting through due to the high elongation at break so that contamination of the head set within the hearing aid can be prevented and by means of the terminally arranged gripping or engaging means the protection element is removable out of the wall or the cavity of the casing wall.
- Mounting tool according to claim 13, characterized in that the terminally arranged jacket (47) is consisting of a material with elastic resilient properties.
- Mounting tool according to one of the claims 13 or 14, characterized in that the terminally arranged elastic jacket (47) is made of the same material as the end (43) of the mounting tool and comprises elastic resilient properties or is made of a rubber elastic material such as an elastomeric material or a thermoplastic elastomer.
- Mounting tool according to one of the claims 13 to 15, characterized in that the elastic jacket (47) is integrally arranged with the end (43) of the mounting tool.
- Mounting tool according to one of the claims 13 to 15, characterized in that the elastic jacket (47) is arranged as additional member on the end (43) of the mounting tool (41).
- Process for mounting a protection element as defined in one of the claims 1 to 11 or in or at a hearing aid by means of a mounting tool according to one of the claims 13 to 17, characterized in that by means of a terminally projecting elastic jacket a border of the end of the cylinder-like body or carrier, comprising the membrane is held by encompassing and is inserted into a cavity of the hearing device housing being open towards outside until the outside encompassing elastic jacket abuts at a housing wall and is pressed at least slightly towards outside such that the protection element is at least almost completely inserted into the cavity and is at least almost disconnected from the elastic jacket so that the mounting tool can be removed without the protection element.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200550004761 DE502005004761D1 (en) | 2005-05-10 | 2005-05-10 | Replaceable hearing protection membrane for hearing aids |
EP20050010122 EP1562400B1 (en) | 2005-05-10 | 2005-05-10 | Replaceable protective membrane of listening device of hearing-aids |
DK05010122T DK1562400T3 (en) | 2005-05-10 | 2005-05-10 | Interchangeable hearing protection membrane for hearing aids |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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EP20050010122 EP1562400B1 (en) | 2005-05-10 | 2005-05-10 | Replaceable protective membrane of listening device of hearing-aids |
Publications (3)
Publication Number | Publication Date |
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EP1562400A2 EP1562400A2 (en) | 2005-08-10 |
EP1562400A3 EP1562400A3 (en) | 2005-12-28 |
EP1562400B1 true EP1562400B1 (en) | 2008-07-23 |
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Family Applications (1)
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EP20050010122 Active EP1562400B1 (en) | 2005-05-10 | 2005-05-10 | Replaceable protective membrane of listening device of hearing-aids |
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EP (1) | EP1562400B1 (en) |
DE (1) | DE502005004761D1 (en) |
DK (1) | DK1562400T3 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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US9749759B2 (en) | 2013-11-20 | 2017-08-29 | Sonova Ag | Sound tube for an earpiece, sound tube arrangement, earpiece with such a sound tube or sound tube arrangement and hearing device with such an earpiece |
EP3195839B1 (en) * | 2009-12-22 | 2022-04-06 | Sonova AG | Ear protector with a sound damping filter, sound damping filter for such an ear protector |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
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DK2416589T3 (en) | 2004-11-01 | 2018-03-12 | Sonion Nederland Bv | Electroacoustic transducer and transducer device |
DE102006043153A1 (en) * | 2006-09-14 | 2008-03-27 | Siemens Audiologische Technik Gmbh | Cleaning tool for a hearing aid |
DE102008038213B8 (en) * | 2008-08-18 | 2010-02-11 | Siemens Medical Instruments Pte. Ltd. | Hearing aid with a transformer protection device |
DE102010006454A1 (en) * | 2010-02-01 | 2011-08-04 | Siemens Medical Instruments Pte. Ltd. | Tool for mounting and dismounting a receiver of a hearing aid |
DE102011120391A1 (en) * | 2011-12-06 | 2013-06-06 | Valeo Schalter Und Sensoren Gmbh | Ultrasonic sensor for a motor vehicle, motor vehicle and method for producing an ultrasonic sensor |
EP3718315B1 (en) | 2017-11-28 | 2024-05-22 | Sonova AG | Cerumen filter applicator and method for removing a cerumen filter |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3616637A1 (en) * | 1986-05-16 | 1987-11-19 | Siemens Ag | DEVICE FOR SCREWING ON A LID ON A SCREW CONNECTOR OF A HOUR DEVICE |
DE3736591C3 (en) * | 1987-04-13 | 1994-04-14 | Beltone Electronics Corp | Hearing aid with ear wax protection |
CA2052423A1 (en) * | 1991-09-26 | 1993-03-27 | Manfred Karl Garbe | Hearing aid wax guard with integral bridge |
US6205227B1 (en) * | 1998-01-31 | 2001-03-20 | Sarnoff Corporation | Peritympanic hearing instrument |
US6134333A (en) * | 1998-03-17 | 2000-10-17 | Sonic Innovations, Inc. | Disposable oleophobic and hydrophobic barrier for a hearing aid |
DK174632B1 (en) * | 1998-07-10 | 2003-07-28 | Toepholm & Westermann | Ear wax for in-ear hearing aid and aids for use in its insertion and removal |
EP1434464B1 (en) * | 2002-12-23 | 2008-04-30 | Sonion Roskilde A/S | Encapsulated receiver comprising an expansible means such as a balloon |
-
2005
- 2005-05-10 EP EP20050010122 patent/EP1562400B1/en active Active
- 2005-05-10 DE DE200550004761 patent/DE502005004761D1/en active Active
- 2005-05-10 DK DK05010122T patent/DK1562400T3/en active
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3195839B1 (en) * | 2009-12-22 | 2022-04-06 | Sonova AG | Ear protector with a sound damping filter, sound damping filter for such an ear protector |
US9749759B2 (en) | 2013-11-20 | 2017-08-29 | Sonova Ag | Sound tube for an earpiece, sound tube arrangement, earpiece with such a sound tube or sound tube arrangement and hearing device with such an earpiece |
Also Published As
Publication number | Publication date |
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DE502005004761D1 (en) | 2008-09-04 |
EP1562400A2 (en) | 2005-08-10 |
DK1562400T3 (en) | 2008-11-10 |
EP1562400A3 (en) | 2005-12-28 |
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