EP1422971A1 - Implantierbarer Wandler für Hörsysteme und Verfahren zum Abstimmen des Frequenzganges eines solchen Wandlers - Google Patents
Implantierbarer Wandler für Hörsysteme und Verfahren zum Abstimmen des Frequenzganges eines solchen Wandlers Download PDFInfo
- Publication number
- EP1422971A1 EP1422971A1 EP02025939A EP02025939A EP1422971A1 EP 1422971 A1 EP1422971 A1 EP 1422971A1 EP 02025939 A EP02025939 A EP 02025939A EP 02025939 A EP02025939 A EP 02025939A EP 1422971 A1 EP1422971 A1 EP 1422971A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- transducer
- converter
- membrane
- implantable
- permanent magnet
- 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
Links
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- 238000000034 method Methods 0.000 title claims abstract description 7
- 230000006870 function Effects 0.000 claims abstract description 24
- 230000003068 static effect Effects 0.000 claims abstract description 21
- 239000012528 membrane Substances 0.000 claims description 66
- 238000013016 damping Methods 0.000 claims description 23
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 10
- 239000007943 implant Substances 0.000 claims description 9
- 239000011345 viscous material Substances 0.000 claims description 7
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 5
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 5
- 239000010931 gold Substances 0.000 claims description 5
- 229910052737 gold Inorganic materials 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- 230000002093 peripheral effect Effects 0.000 claims description 5
- 229910052697 platinum Inorganic materials 0.000 claims description 5
- 229910052719 titanium Inorganic materials 0.000 claims description 5
- 239000010936 titanium Substances 0.000 claims description 5
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 239000007787 solid Substances 0.000 claims description 3
- 239000013013 elastic material Substances 0.000 claims description 2
- 150000002739 metals Chemical class 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 229920001187 thermosetting polymer Polymers 0.000 claims description 2
- 210000004379 membrane Anatomy 0.000 description 66
- 238000012546 transfer Methods 0.000 description 8
- 230000008878 coupling Effects 0.000 description 7
- 238000010168 coupling process Methods 0.000 description 7
- 238000005859 coupling reaction Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 229920001296 polysiloxane Polymers 0.000 description 5
- 210000003027 ear inner Anatomy 0.000 description 4
- 210000000959 ear middle Anatomy 0.000 description 3
- 238000002513 implantation Methods 0.000 description 3
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- 206010011878 Deafness Diseases 0.000 description 1
- 230000003466 anti-cipated effect Effects 0.000 description 1
- 210000000721 basilar membrane Anatomy 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
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- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 210000004049 perilymph Anatomy 0.000 description 1
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- 210000003454 tympanic membrane Anatomy 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
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
- H04R25/60—Mounting or interconnection of hearing aid parts, e.g. inside tips, housings or to ossicles
- H04R25/604—Mounting or interconnection of hearing aid parts, e.g. inside tips, housings or to ossicles of acoustic or vibrational transducers
- H04R25/606—Mounting or interconnection of hearing aid parts, e.g. inside tips, housings or to ossicles of acoustic or vibrational transducers acting directly on the eardrum, the ossicles or the skull, e.g. mastoid, tooth, maxillary or mandibular bone, or mechanically stimulating the cochlea, e.g. at the oval window
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R11/00—Transducers of moving-armature or moving-core type
Definitions
- the invention relates to a working on the electromagnetic transducer principle implantable transducer for hearing systems and a method for tuning the Frequency response of such a converter.
- Transducers of the type considered here are basically, for example, from ENT, 1997-45: 792-800, H. Leysieffer et al. "An implantable piezoelectric hearing aid transducer for inner ear deaf people ". This essay deals accordingly his title especially with piezoelectric transducers; it is there, however generally noted that actuator hearing aid converters are also under use of the electromagnetic conversion process that can be realized at an electromagnetic transducer a permanent magnet in a time-varying Field of a fixed coil moves and that this has the advantage of miniaturization of the portable permanent magnet.
- a hearing aid for an at least partially implantable hearing aid certain electromagnetic transducers for direct mechanical excitation of the Middle or inner ear is described in US 6,162,169. It dips on the inside a membrane suspended permanent magnet in a housing-fixed electromagnetic Component, in particular a ring coil. The membrane is oscillatable and it closes the open face of a hermetically sealed cup-shaped Converter housing. On the outside of the membrane is a coupling element for Transmitted vibrations attached to the middle and / or inner ear.
- the invention is based, an object according to the electromagnetic transducer principle working implantable transducer for hearing aids to create occurring in practice, among other things from the type of converter use as Actuator or sensor, depending on the intended implantation location and the like Conditions can be adapted particularly well. It is also intended to be a procedure be provided for tuning the frequency response of such a converter.
- an implantable working according to the electromagnetic transducer principle Transducer for hearing systems with a static part, to which a hermetic on all sides tight converter housing and a ring coil arrangement fixedly attached therein, and with a dynamic part that at least with the static converter part a connecting element is in mechanical connection, in the implanted state to a body part of an implant carrier via at least one connecting element is coupled and a permanent magnet arrangement which interacts with the toroidal coil arrangement has, which by means of a bearing in the direction of the axis of Ring coil assembly is mounted to vibrate, with at least one connecting element is designed as a multi-functional element, which is also part of the storage and / or part of the hermetically sealed transducer housing, and wherein the mechanical Properties of the multi-function element to achieve a target frequency response of the converter are selected.
- the invention also relates to a method for tuning the frequency response one that works according to the electromagnetic transducer principle, implantable Transducers for hearing aids, with a static part, to which an all-round hermetic tight converter housing and a ring coil arrangement fixedly attached therein, and is provided with a dynamic part that overlaps with the static converter part at least one connecting element is in mechanical connection in the implanted Condition on a body part of an implant carrier via at least one connecting element is coupled and a cooperating with the toroidal arrangement Has permanent magnet arrangement which by means of a bearing in the direction of Axis of the toroidal coil arrangement is mounted so that it can vibrate, the mechanical Properties of at least one connecting element that functions as a multi-function element at the same time part of the storage and / or part of the hermetically sealed converter housing is selected to achieve a target frequency response of the transducer.
- the invention assumes that it is for implantable electromechanical actuators it is essential to ensure high efficiency. Especially in the case of Implants are namely problematic in terms of energy supply, so it is on it arrives, a certain amount of energy in the highest possible amount of mechanical Implement energy.
- the invention is based on the knowledge that the efficiency, with which an actuator transfers energy to the body in a significant way from the adaptation of the frequency response of the actuator to the load impedance and therefore depends the matching of the frequency response characteristics with respect to the impedance of the the actuator effective load has a significant impact on the efficiency of the Can have energy transfer from the transducer to the body.
- electromechanical It is essential for sensors to be as sensitive as possible and achieve linearity.
- the frequency response of the converter is also decisive for this.
- At least one multiple function element is one of setting the Target frequency response of the transducer bendable membrane, which serves as a connecting element for a mutual elastic connection of static and dynamic Transformer part provides and which also forms a wall part of the converter housing.
- the converter housing can in particular be a rigid tubular peripheral wall and with these have tightly connected end walls, at least one of the end walls from a bendable serving to set the target frequency response of the transducer Membrane is formed over which the static and dynamic part of the transducer are elastically connected to each other and at the same time part of the storage of the permanent magnet arrangement is.
- the membrane takes over four at the same time Functions:
- At least one of the connecting elements can also be used as a damping element Damping the vibratory movements of the permanent magnet arrangement can be designed, the mechanical properties of the damping element also with regard are selected to achieve the target frequency response.
- At least one membrane can be provided as the damping element, which at the same time May be part of the bearing arrangement of the permanent magnet arrangement.
- the the Frequency response of the transducer influencing damping properties of such Membrane can not only be selected by choosing the membrane wall thickness, but also other also by choosing an appropriate perforation or slitting the Adjust the membrane.
- At least one plug made of viscous material may also be provided, that compared to both the static converter part and the dynamic one Converter part can be supported.
- the permanent magnet arrangement mounted on a pole, which by means of storage at least two axially spaced locations with respect to the converter housing is axially adjustable, this rod being an actuator element from the Converter housing can protrude.
- the permanent magnet arrangement is preferably in its own, hermetically sealed and biocompatible housing.
- the converter housing is expediently cylindrical, in particular circular cylindrical, designed.
- a converter which can be used either as a vibration-stimulating actuator or as a vibration-sensing sensor, is shown in a block framed by broken lines.
- M 1 denotes the static part of the converter.
- the static transducer part M 1 represents an element which, in the implanted state, is in substantially rigid contact with a body part B 1 of the implant carrier, for example a muscle or bone, which has a large mass compared to the mass of the transducer.
- M 2 represents the dynamic part of the transducer in FIGS. 1 and 2. It is in contact with a body part B 2 of the implant carrier, the mass or impedance of which is preferably comparable to the mass or impedance of the transducer.
- the body part B 2 can be, in particular in the case of an actuator, the eardrum, a middle ear cross-section, the perilymph or the basilar membrane in the inner ear.
- the static converter part M 1 and the dynamic converter part M 2 are mechanically connected to one another via a connecting element E 1 , which is indicated as a spring.
- Another connecting element E 2 illustrated as an attenuator, provides the mechanical connection between the dynamic converter part M 2 and the body part B 2 .
- the static converter part M 1 and the dynamic converter part M 2 are connected to one another via two connecting elements E 1 and E 2 , of which the connecting element E 1 is again designed as a spring and the connecting element E 2 as an attenuator ,
- a connecting element E 3 designed as a spring is provided for coupling the dynamic converter part M 2 to the body part B 2 .
- connecting elements can be used.
- at least one of these connecting elements is designed as a multi-functional element, which is also part of the storage of dynamic converter part and / or part of a hermetically sealed converter housing.
- the transducer designated overall by 10
- the transducer has a hermetic seal gas and liquid-tight housing 11 of, for example, circular cylindrical Mold made of biocompatible, gas and liquid-tight material, for example titanium, Gold or platinum.
- the converter housing 10 includes a rigid, tubular one Circumferential wall 12 and two substantially circular end walls, of which in Fig. 3rd only one can be seen. The latter is formed by a flexible membrane 13, whose outer edge with the peripheral wall 12 in a tight and hermetically sealed connection stands.
- a rod 14 extends with the membrane 13 is firmly and hermetically sealed and from the converter housing 11 protrudes as an actuator element.
- the longitudinal axis of the rod 14 coincides with the Longitudinal central axis of the housing 11 and with the center of the membrane 13 together.
- On the rod 14 is a permanent magnet arrangement having two permanent magnets 15 attached.
- the two permanent magnets are magnetized in the axial direction, which is indicated in Fig. 3 with a double arrow and which is also the direction of vibration of the dynamic part of the converter.
- the permanent magnet arrangement 15 as such can preferably be packed hermetically sealed and biocompatible his.
- the permanent magnet arrangement 15 can be in its own housing made of titanium, gold or platinum, of which the concentric outer and Inner walls 32 and 33 are shown. This will make the body of the Implant carrier protected against toxic permanent magnet materials even if which should break part of the transducer housing membrane 13. The inherent The safety of the converter design shown is further improved in this way.
- an overall fixed with respect to the peripheral wall 12 with 16 designated coil arrangement to that in the illustrated embodiment include three axially successive cylindrical ring coils.
- the permanent magnet arrangement 15 is located within that of the coil arrangement 16 Space.
- the coil arrangement 16 generates this for driving the permanent magnet arrangement 15 required alternating electromagnetic field.
- Connections 17 for the Coil assembly 16 are hermetic from the converter housing 11 via not shown sealed bushings led out. An AC signal is applied to the connections 17 applied, the permanent magnet assembly 15 together with the Coupling rod 14 causes axial vibrations.
- the coil arrangement and the permanent magnet arrangement interacting with it can in principle also be constructed in a manner other than that shown in FIG. 3 be, for example, in US Pat. No. 5,299,176 for non-implantable transducers known way or similar.
- the rod 14 and the permanent magnet assembly 15 are related to the coil assembly 16 axially limited adjustable by means of a bearing.
- To storage include the membrane 13 and another in the illustrated embodiment bendable, essentially circular membrane 18.
- the membrane 18 sits on the side of the coil arrangement 16 facing away from the membrane 13 Membrane 18 is also fixed with respect to the peripheral wall 12, and the Rod 14 is in a central opening 19 of the top view illustrated in FIG. 4 Membrane 18 attached.
- the membrane 18 does not Part of the hermetically sealed converter housing 11, but it is axially spaced from the front wall of the housing 11, which cannot be seen in FIG. 3.
- the membrane 18 is provided with a series of concentric openings.
- the resulting Circular ring sections 20 of the membrane 18 are connected to one another via webs 21.
- the membrane 18 can be made of the same material as the membrane 13, for example made of titanium, gold or platinum. Such a perforated membrane can Bearing function take over without the frequency response of the converter appreciable influence.
- the coil arrangement 16 and the converter housing - form the static part M 1 of the converter shown in FIGS. 1 and 2.
- this static transducer part is essentially rigidly coupled to the cranial bone of the implant carrier.
- the rod 14 and the permanent magnet arrangement 15 carried by it represent the dynamic transducer part M 2 of FIGS. 1 and 2.
- the membrane 13 corresponds to the connecting element E 1 of FIGS. 1 and 2; however, it also has a housing function and a bearing function at the same time, and it serves to adjust the frequency response of the converter 10.
- a corresponding attenuator could be integrated in the coupling rod 14 in order to implement the damping connecting element E 2 in FIG. 1.
- the connecting element E 2 having spring properties in FIG. 2 can be connected by a coupling rod 14 that is resilient in the axial direction and / or by
- the resonance peak of the frequency response curves according to FIG. 5 shifts at one Significant change in the thickness of the membrane 13 from 20 ⁇ m to 25 ⁇ m from about 800 Hz to about 1000 Hz.
- the thickness of the bearing membrane 18, however, has the Frequency response practically no influence.
- a membrane 25 shown schematically in FIG. 6 can also be provided, which in addition to a bearing function also has a damping function which influences the frequency response of the transducer in the desired manner.
- an uninterrupted layer 26 made of viscous material, for example silicone, can be selected as the membrane material.
- a viscous membrane can be covered with a layer 27 of solid and preferably biocompatible elastic material, for example a thermoset or metal, in particular titanium, gold, platinum or a mixture of at least two of these metals.
- This elastic coating layer 27 is perforated, and preferably analogously to the perforation of the membrane 18 shown in FIG. 4.
- Such a membrane 25 corresponds functionally to the connecting element E 2 of FIG. 2.
- FIG. 7 shows the measured effect of a silicone membrane according to FIG. 6 on the transfer function an acoustic transducer.
- the thick solid curve represents the Transfer function without silicone membrane, while the thin curve shows the Transfer function of the converter with silicone membrane 25 is.
- the membrane 25 In the range below about 3000 Hz and above about 8000 Hz, the membrane 25 has a damping effect. In the range of around 4000 up to 8000 Hz, however, the transducer deflection is increased by the membrane 25.
- FIG. 8 an attenuator in the form of a circular cylindrical plug 30 made of viscous material, for example silicone, is shown.
- the plug sits on the side of the diaphragm 18 facing away from the coil arrangement 16 according to FIG. 3 on the coupling rod 14.
- the plug 30 can be supported directly or indirectly on a rigid part of the converter housing 11 and can influence the movement of the dynamic converter part M 2 in the axial direction .
- a similar plug made of viscous material can, however, also abut against the axial end of the coupling rod 14 on the side of the membrane 18 facing away from the coil arrangement 16 for damping purposes.
- the isolated influence of such a plug is that large deflections of the dynamic transducer part M 2 are damped more than small deflections. This effect corresponds to a relatively strong damping at low frequencies and a relatively weak damping at high frequencies. Such an influence on the frequency response can be useful for an actuator to improve the hearing if, for example, signals below 250 Hz that are not required for speech understanding are to be masked out.
- Attenuator 30 itself does not need to have a bearing effect.
- a further modified Embodiment can also be a viscous plug of the type described be designed so that it is essentially only in the axial, but not in the radial direction gives way. Then the grafting itself can be used as a storage and management function for the dynamic Take over converter part, and the membrane 18 may be omitted if necessary.
- Attenuators for example in the form of Membranes and / or plugs of the type described can, depending on the use of the transducer also be useful as a sensor or as a transducer in the ultrasound spectrum.
- Attenuators allow the spectrum to be targeted in several To influence frequency ranges. For example, in the converter according to FIG.
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- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Neurosurgery (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Prostheses (AREA)
- Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
Abstract
Description
- Fig. 1
- eine Prinzipskizze eines implantierbaren, elektromechanischen Hörsystemwandlers,
- Fig. 2
- eine Prinzipskizze ähnlich Fig.1 für eine abgewandelte Ausführungsform des Wandlers,
- Fig. 3
- eine aufgebrochene perspektivische Darstellung eines erfindungsgemäß aufgebauten Hörsystemwandlers,
- Fig. 4
- eine Draufsicht auf eine bei dem Wandler nach Fig. 3 vorgesehene zweite Membran mit Lagerfunktion,
- Fig. 5
- den Einfluss der Dicke der einen Teil des hermetisch dichten Gehäuses bildenden Membran des Wandlers gemäß Fig. 3 auf den Frequenzgang des Wandlers,
- Fig. 6
- eine Seitenansicht einer abgewandelten zweiten Membran, die als Dämpfungselement mit Lagerfunktion ausgebildet ist,
- Fig. 7
- den Einfluss einer Membran der in Fig. 6 dargestellten Art auf die Transferfunktion des akustischen Wandlers,
- Fig. 8
- eine Seitenansicht einer weiter abgewandelten Ausbildung eines Verbindungselementes mit Dämpfungsfunktion und
- Fig. 9
- einen Querschnitt einer in einem eigenen Gehäuse untergebrachten Permanentmagnetanordnung.
Claims (16)
- Implantierbarer, nach dem elektromagnetischen Wandlerprinzip arbeitender Wandler (10) für Hörsysteme mit einem statischen Teil (M1; 11, 16), zu dem ein allseitig hermetisch dichtes Wandlergehäuse (11) und eine darin fest angebrachte Ringspulenanordnung (16) gehören, und mit einem dynamischen Teil (M2; 14, 15), der mit dem statischen Wandlerteil über mindestens ein Verbindungselement (E1 beziehungsweise E1, E2; 13, 18, 25) in mechanischer Verbindung steht, im implantierten Zustand an einen Körperteil (B2) eines Implantatträgers über mindestens ein Verbindungselement (E2 beziehungsweise E3) angekoppelt ist und eine mit der Ringspulenanordnung zusammenwirkende Permanentmagnetanordnung (15) aufweist, die mittels einer Lagerung (13, 18, 25) in Richtung der Achse der Ringspulenanordnung schwingfähig gelagert ist, wobei mindestens ein Verbindungselement (13, 18, 25) als Mehrfachfunktionselement ausgebildet ist, das zugleich Teil der Lagerung und/oder Teil des hermetisch dichten Wandlergehäuses ist, und wobei die mechanischen Eigenschaften des Mehrfachfunktionselements zur Erzielung eines Soll-Frequenzganges des Wandlers ausgewählt sind.
- Implantierbarer Wandler nach Anspruch 1, dadurch gekennzeichnet, dass mindestens ein Mehrfachfunktionselement eine dem Einstellen des Soll-Frequenzganges des Wandlers dienende biegefähige Membran (13) ist, die einen Wandteil des Wandlergehäuses (11) bildet.
- Implantierbarer Wandler nach Anspruch 2, dadurch gekennzeichnet, dass das Wandlergehäuse (11) eine starre rohrförmige Umfangswand (12) und mit dieser dicht verbundene Stirnwände aufweist, und dass mindestens eine der Stirnwände von einer dem Einstellen des Soll-Frequenzganges des Wandlers dienenden biegefähigen Membran (13) gebildet ist, über die der statische und der dynamische Teil des Wandlers (10) miteinander elastisch verbunden sind und die zugleich Teil der Lagerung (13, 18, 25) der Permanentmagnetanordnung (15) ist.
- Implantierbarer Wandler nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass mindestens eines der Verbindungselemente (25) zugleich als Dämpfungselement zum Dämpfen der Schwingungsbewegungen der Permanentmagnetanordnung (15) ausgelegt ist, und dass die mechanischen Eigenschaften des Dämpfungselements gleichfalls im Hinblick auf die Erzielung des Soll-Frequenzganges ausgewählt sind.
- Implantierbarer Wandler nach Anspruch 4, dadurch gekennzeichnet, dass als dämpfendes Verbindungselement mindestens eine mindestens teilweise aus viskosem Werkstoff bestehende Membran (25) vorgesehen ist.
- Implantierbarer Wandler nach Anspruch 5, dadurch gekennzeichnet, dass die als Dämpfungselement dienende Membran (25) zugleich Teil der Lagerung (13, 18, 25) der Permanentmagnetanordnung (15) ist.
- Implantierbarer Wandler nach Ansprüchen 5 und 6, dadurch gekennzeichnet, dass die als Dämpfungselement dienende Membran eine Lage (26) aus viskosem Werkstoff aufweist, die mit einer durchbrochenen Schicht (27) aus festem, elastischem Material überzogen ist.
- Implantierbarer Wandler nach Anspruch 7, dadurch gekennzeichnet, dass der Werkstoff der durchbrochenen Schicht (27) aus der Titan, Gold, Platin und Gemische aus mindestens zwei dieser Metalle umfassenden Gruppe ausgewählt ist.
- Implantierbarer Wandler nach Anspruch 7, dadurch gekennzeichnet, dass die durchbrochene Schicht (27) aus einem Duroplast besteht.
- Implantierbarer Wandler nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass Teil der Lagerung der Permanentmagnetanordnung (15) eine perforierte Membran (18) ist, die zwischen dem statischen Teil (M1; 11, 16) und dem dynamischen Teil (M2; 14, 15) des Wandlers (10) sitzt.
- Implantierbarer Wandler nach einem der vorhergehenden Ansprüche, gekennzeichnet durch mindestens ein mit dem dynamischen Teil (M2) des Wandlers (10) zusammenwirkendes Dämpfungselement in Form eines Pfropfens (30) aus viskosem Material.
- Implantierbarer Wandler nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Permanentmagnetanordnung (15) auf einer Stange (14) montiert ist, die mittels der Lagerung (13, 18, 25) an mindestens zwei axial in Abstand voneinander liegenden Stellen mit Bezug auf das Wandlergehäuse (11) axial verstellbar gelagert ist.
- Implantierbarer Wandler nach Anspruch 12, dadurch gekennzeichnet, dass die die Permanentmagnetanordnung (15) tragende Stange (14) als Aktorelement aus dem Wandlergehäuse (11) herausragt.
- Implantierbarer Wandler nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Permanentmagnetanordnung (15) in einem eigenen, hermetisch dichten und biokompatiblen Gehäuse untergebracht ist.
- Implantierbarer Wandler nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Wandlergehäuse (11) zylinderförmig, insbesondere kreiszylindrisch, gestaltet ist.
- Verfahren zum Abstimmen des Frequenzganges eines nach dem elektromagnetischen Wandlerprinzip arbeitenden, implantierbaren Wandlers für Hörsysteme, der mit einem statischen Teil, zu dem ein allseitig hermetisch dichtes Wandlergehäuse und eine darin fest angebrachte Ringspulenanordnung gehören, und mit einem dynamischen Teil versehen ist, der mit dem statischen Wandlerteil über mindestens ein Verbindungselement in mechanischer Verbindung steht, im implantierten Zustand an einen Körperteil eines Implantatträgers über mindestens ein Verbindungselement angekoppelt ist und eine mit der Ringspulenanordnung zusammenwirkende Permanentmagnetanordnung aufweist, die mittels einer Lagerung in Richtung der Achse der Ringspulenanordnung schwingfähig gelagert ist, wobei die mechanischen Eigenschaften mindestens eines Verbindungselements, das als Mehrfachfunktionselement zugleich Teil der Lagerung und/oder Teil des hermetisch dichten Wandlergehäuses ist, zur Erzielung eines Soll-Frequenzganges des Wandlers ausgewählt werden.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP02025939A EP1422971B1 (de) | 2002-11-20 | 2002-11-20 | Implantierbarer Wandler für Hörsysteme und Verfahren zum Abstimmen des Frequenzganges eines solchen Wandlers |
US10/420,748 US6855104B2 (en) | 2002-11-20 | 2003-04-23 | Implantable transducer for hearing aids and process for tuning the frequency response of one such transducer |
CA002427051A CA2427051C (en) | 2002-11-20 | 2003-04-29 | Implantable transducer for hearing aids and process for tuning the frequency response of one such transducer |
AU2003204136A AU2003204136B2 (en) | 2002-11-20 | 2003-05-07 | Implantable Transducer for Hearing Aids and Process for Tuning the Frequency Response of One Such Transducer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP02025939A EP1422971B1 (de) | 2002-11-20 | 2002-11-20 | Implantierbarer Wandler für Hörsysteme und Verfahren zum Abstimmen des Frequenzganges eines solchen Wandlers |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1422971A1 true EP1422971A1 (de) | 2004-05-26 |
EP1422971B1 EP1422971B1 (de) | 2012-11-07 |
Family
ID=32187176
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02025939A Expired - Lifetime EP1422971B1 (de) | 2002-11-20 | 2002-11-20 | Implantierbarer Wandler für Hörsysteme und Verfahren zum Abstimmen des Frequenzganges eines solchen Wandlers |
Country Status (4)
Country | Link |
---|---|
US (1) | US6855104B2 (de) |
EP (1) | EP1422971B1 (de) |
AU (1) | AU2003204136B2 (de) |
CA (1) | CA2427051C (de) |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20050039446A (ko) * | 2003-10-25 | 2005-04-29 | 대한민국(경북대학교 총장) | 중이 이식형 보청기용 트랜스듀서의 진동소자 제작방법 및그에 의해 제작된 진동소자 |
US7651460B2 (en) * | 2004-03-22 | 2010-01-26 | The Board Of Regents Of The University Of Oklahoma | Totally implantable hearing system |
CN1973574B (zh) | 2004-06-03 | 2012-09-05 | 迪芬尼香港有限公司 | 磁性悬挂换能器 |
CA2588810A1 (en) * | 2004-11-30 | 2006-06-08 | Cochlear Acoustics Ltd | Implantable actuator for hearing aid applications |
WO2007011806A2 (en) * | 2005-07-18 | 2007-01-25 | Soundquest, Inc. | Behind-the-ear auditory device |
US20070127757A2 (en) * | 2005-07-18 | 2007-06-07 | Soundquest, Inc. | Behind-The-Ear-Auditory Device |
US9533143B2 (en) * | 2008-06-13 | 2017-01-03 | Cochlear Limited | Implantable sound sensor for hearing prostheses |
SE533047C2 (sv) * | 2009-03-24 | 2010-06-15 | Osseofon Ab | Benledningsvibratorkonstruktion med förbättrad högfrekvensrespons |
JP2013539351A (ja) | 2010-10-08 | 2013-10-17 | ソリダゴ ソシエテ ア レスポンサビリテ リミテ | 補聴応用のための埋め込み可能なアクチュエータ |
US9131323B2 (en) * | 2010-11-03 | 2015-09-08 | Cochlear Limited | Hearing prosthesis having an implantable actuator system |
US9729981B2 (en) | 2011-05-12 | 2017-08-08 | Cochlear Limited | Identifying hearing prosthesis actuator resonance peak(s) |
KR101223693B1 (ko) * | 2011-06-16 | 2013-01-21 | 경북대학교 산학협력단 | 구동력이 우수한 3코일 타입의 정원창 구동 진동체 |
US9554222B2 (en) | 2011-12-07 | 2017-01-24 | Cochlear Limited | Electromechanical transducer with mechanical advantage |
US9900709B2 (en) | 2013-03-15 | 2018-02-20 | Cochlear Limited | Determining impedance-related phenomena in vibrating actuator and identifying device system characteristics based thereon |
US10477332B2 (en) | 2016-07-18 | 2019-11-12 | Cochlear Limited | Integrity management of an implantable device |
US11432084B2 (en) | 2016-10-28 | 2022-08-30 | Cochlear Limited | Passive integrity management of an implantable device |
US10897677B2 (en) | 2017-03-24 | 2021-01-19 | Cochlear Limited | Shock and impact management of an implantable device during non use |
US11223912B2 (en) | 2017-07-21 | 2022-01-11 | Cochlear Limited | Impact and resonance management |
CN109451414A (zh) * | 2018-10-30 | 2019-03-08 | 佛山市合宏泰业科技有限公司 | 一种喇叭振动检测装置 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4628907A (en) * | 1984-03-22 | 1986-12-16 | Epley John M | Direct contact hearing aid apparatus |
US5299176A (en) * | 1991-12-20 | 1994-03-29 | Tibbetts Industries, Inc. | Balanced armature transducers with transverse gap |
US6139488A (en) * | 1997-09-25 | 2000-10-31 | Symphonix Devices, Inc. | Biasing device for implantable hearing devices |
US6162169A (en) * | 1998-09-03 | 2000-12-19 | Implex Aktiengesellschaft Hearing Technology | Transducer arrangement for partially or fully implantable hearing aids |
US20010055405A1 (en) * | 1998-12-30 | 2001-12-27 | Cho Jin-Ho | Middle ear hearing aid transducer |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5624376A (en) * | 1993-07-01 | 1997-04-29 | Symphonix Devices, Inc. | Implantable and external hearing systems having a floating mass transducer |
US5554096A (en) * | 1993-07-01 | 1996-09-10 | Symphonix | Implantable electromagnetic hearing transducer |
DE19610997B4 (de) * | 1996-03-21 | 2006-07-13 | Sennheiser Electronic Gmbh & Co. Kg | Elektrodynamischer Schallwandler mit Magnetspaltenabdichtung und Hörhilfe |
DE19738587C1 (de) * | 1997-09-03 | 1999-05-27 | Implex Gmbh | Anordnung zum Einstellen und Fixieren der Relativlage zweier Elemente eines aktiven oder passiven Hör-Implantats |
US6217508B1 (en) * | 1998-08-14 | 2001-04-17 | Symphonix Devices, Inc. | Ultrasonic hearing system |
DE19948336C2 (de) * | 1999-10-07 | 2002-02-28 | Implex Hear Tech Ag | Anordnung zum Ankoppeln eines Treibers an eine Ankoppelstelle der Ossikelkette |
-
2002
- 2002-11-20 EP EP02025939A patent/EP1422971B1/de not_active Expired - Lifetime
-
2003
- 2003-04-23 US US10/420,748 patent/US6855104B2/en not_active Expired - Fee Related
- 2003-04-29 CA CA002427051A patent/CA2427051C/en not_active Expired - Fee Related
- 2003-05-07 AU AU2003204136A patent/AU2003204136B2/en not_active Ceased
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4628907A (en) * | 1984-03-22 | 1986-12-16 | Epley John M | Direct contact hearing aid apparatus |
US5299176A (en) * | 1991-12-20 | 1994-03-29 | Tibbetts Industries, Inc. | Balanced armature transducers with transverse gap |
US6139488A (en) * | 1997-09-25 | 2000-10-31 | Symphonix Devices, Inc. | Biasing device for implantable hearing devices |
US6162169A (en) * | 1998-09-03 | 2000-12-19 | Implex Aktiengesellschaft Hearing Technology | Transducer arrangement for partially or fully implantable hearing aids |
US20010055405A1 (en) * | 1998-12-30 | 2001-12-27 | Cho Jin-Ho | Middle ear hearing aid transducer |
Also Published As
Publication number | Publication date |
---|---|
US6855104B2 (en) | 2005-02-15 |
CA2427051A1 (en) | 2004-05-20 |
CA2427051C (en) | 2006-10-03 |
EP1422971B1 (de) | 2012-11-07 |
AU2003204136B2 (en) | 2008-11-20 |
US20040097785A1 (en) | 2004-05-20 |
AU2003204136A1 (en) | 2004-06-10 |
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