EP1522208B1 - Teilplantierbares hörhilfegerät - Google Patents

Teilplantierbares hörhilfegerät Download PDF

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Publication number
EP1522208B1
EP1522208B1 EP03760752A EP03760752A EP1522208B1 EP 1522208 B1 EP1522208 B1 EP 1522208B1 EP 03760752 A EP03760752 A EP 03760752A EP 03760752 A EP03760752 A EP 03760752A EP 1522208 B1 EP1522208 B1 EP 1522208B1
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EP
European Patent Office
Prior art keywords
patient
casing
auditory canal
external
magnetic piece
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Expired - Lifetime
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EP03760752A
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English (en)
French (fr)
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EP1522208A1 (de
Inventor
Guy Charvin
Stéphane GALLEGO
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MXM SAS
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MXM SAS
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • 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
    • H04R2225/00—Details of deaf aids covered by H04R25/00, not provided for in any of its subgroups
    • H04R2225/67—Implantable hearing aids or parts thereof not covered by H04R25/606

Definitions

  • the present invention relates to an acoustic hearing aid for the rehabilitation of patients with partial sensorineural hearing loss.
  • acoustic hearing aids available on the market are categorized into two product categories: earloop devices and in-ear devices.
  • Boundary devices such as the one shown in the document EP 1 011 295 , comprise an arc-shaped housing intended to be housed behind the ear, this housing generally containing one or more sensors such as microphones, a power source of the battery or battery type, and electronic circuits of amplification and analog and / or digital signal processing.
  • the electronic circuits generate a sound signal that is sent into the ear canal of the patient via an acoustic tube held in the ear canal by an ear plug.
  • This in-ear plug also makes it possible to reduce acoustic feedback phenomena between the earpiece and the point of sound emission.
  • these devices have great ease of implementation, good reliability and sufficient performance, due in part to the relatively large volume available, to integrate all the electronic circuits required.
  • these devices have the disadvantage of being painful to wear, and risk falling as a result of certain movements of the head.
  • they are relatively visible and lack aesthetics. They do not completely eliminate the feedback phenomena because the microphone is relatively close to the earpiece, which forces them to be set to under-amplification mode.
  • the intra-auricular plug also has drawbacks, including unpleasant feeling of clogged ear, perception of noise during mastication, and hygiene problems and potentially infections, due to the fact that mouth the auditory canal.
  • in-ear devices are in the form of small housings intended to be inserted directly into the external auditory canal.
  • This case consists of a resin shell, whose shape is adapted by molding to the anatomy of the external auditory canal of each patient.
  • This box brings together in a very small volume the sound sensor, the electronic circuits for amplification and signal processing, the earpiece, the power source (electric battery).
  • the sound sensor the electronic circuits for amplification and signal processing
  • the earpiece the power source (electric battery).
  • the power source electric battery
  • the miniaturization of the microphone and the earphone do not make it possible to obtain sound qualities of good quality.
  • the low volume available makes it difficult or impossible to add additional microphones or more sophisticated signal processing functions. It has a low autonomy due to the use of a battery necessarily small. Because of its small size, handling, especially during settings and battery changes is difficult, which leads to the risk of falling when removed from the ear canal. As for devices with earloop, they cause unpleasant feelings of clogged ear, pose hygiene problems, with risks of infection and premature wear of the device.
  • the first magnetic piece is a magnet.
  • the second magnetic part is a magnet.
  • the first and second magnetic parts are permanent magnets, and the second magnetic part is disposed in the implanted housing so as to have a north-south magnetic axis substantially parallel to the surface of the patient's skin. at said location, and the first magnetic part is disposed in the outer casing so as to have a north-south magnetic axis substantially parallel to the wall of the housing intended to come into contact with the skin of the patient.
  • the second magnetic piece is a magnet and the first magnetic piece comprises two permanent magnets arranged in the outer casing so as to have north-south magnetic axes substantially perpendicular to the wall of the casing intended to contacting the skin of the patient, and in opposite directions, these magnetic axes being spaced from each other by a distance substantially corresponding to the distance between the poles of the second magnetic part.
  • the first magnetic part is a magnet and the second magnetic part comprises two permanent magnets arranged in the implanted housing so as to have north-south magnetic axes substantially perpendicular to the surface of the patient's skin. at said location, and in opposite directions, these magnetic axes being spaced from each other by a distance substantially corresponding to the distance between the poles of the first magnetic part.
  • the second magnetic part comprises at least two permanent magnets arranged in the implanted housing so as to present north-south magnetic axes. substantially perpendicular to the patient's skin surface at said location, and alternately in opposite directions
  • the first magnetic piece comprises as many permanent magnets as the first piece, the magnets of the first magnetic piece being disposed in the housing so as to have north-south magnetic axes substantially perpendicular to the wall of the outer casing intended to come into contact with the skin of the patient, and alternately in opposite directions, the magnetic axes of the magnets disposed in the outer casing being distributed in a plane substantially parallel to said wall in a configuration substantially corresponding to the configuration of distribution of the magnetic axes of the magnets in the implanted housing.
  • the second housing is designed to be implanted in the temporo-occipital zone of the patient's skull.
  • the earpiece is disposed in the outer casing and connected to the patient's external auditory canal by an acoustic tube having an intra-auricular end, the hearing aid device further comprising a system for mechanical anti-feedback damping.
  • the earpiece is placed in the patient's external auditory canal and forms an in-ear end of the link, the link being constituted by an electric cable.
  • the intra-auricular end of the link is maintained in the patient's external auditory canal by means of an intra-auricular support comprising means for centering and maintaining said end in the auditory canal.
  • the outer casing comprises a base and a cover rotatably mounted on the base, and means for locking the angular position of the cover relative to the base, the second magnetic part being fixed to the base, while that the microphone or microphones are attached to the cover.
  • the implanted housing is connected to at least two electrodes for collecting evoked or spontaneous auditory potentials, the implanted housing containing at least one electronic module for collecting and processing a signal connected to the collection electrodes, a transmission module connected to an antenna and to the collection and processing module, for transmitting to the external box the signals produced by the collection module according to the signals collected by the electrodes, and a power supply.
  • one of the collection electrodes is adapted to be disposed on the round window.
  • the implanted housing is further connected to at least one active stimulation electrode intended to be positioned near the patient's inner ear or in the cochlea, the implanted housing containing at least one module stimulation electronics connected to the stimulation electrodes, a transmission module connected to an antenna and the stimulation module, the stimulation module being adapted to generate electrical stimulation signals which are applied to the stimulation electrodes from signals received from the housing external 1 via the transmission module, via the antenna located in the implanted housing.
  • one of the active stimulation electrodes is adapted to be disposed on the round window of the patient's middle ear.
  • the collection electrodes and the stimulation electrodes are at least partially common.
  • the external box further comprises a signal transmission module connected to at least one antenna and to the electronic module.
  • the implanted housing is further connected to at least one electromechanical transducer vibrator intended to be positioned in a bone or cartilaginous zone near the patient's inner ear, the implanted housing enclosing at least one electronic stimulation module connected to the vibrator , a transmission module connected to an antenna and to the stimulation module, the stimulation module being designed to generate electrical stimulation signals which are applied to the vibrator from signals received from the outer casing 1 via the transmission module , via the antenna located in the implanted housing.
  • the Figures 1 and 2 represent respectively in profile view and in section, the head of a patient equipped with a hearing aid device according to the invention, maintained on the skull.
  • This device comprises an external casing 1 equipped with at least one microphone 13a, 13b and enclosing a source of energy, (for example a battery or a battery), and electronic amplification and signal processing circuits, this casing being connected to a device for distributing sound signals in the auditory canal 5 of the patient, this device comprising a earphone 3 and a link 4 between the housing and the inside of the ear canal.
  • a source of energy for example a battery or a battery
  • the case 1 is held according to the invention on the patient's head by means of a magnet housed in a case 2 implanted under the skin and possibly attached to the bone of the skull 7, this magnet being intended to exert a magnetic attraction force on a magnetic part disposed in the outer casing, when the latter is disposed near the implanted casing 2.
  • the housing 2 has a substantially planar shape of small thickness, so as to be inserted under the skin, preferably under the scalp, to be masked by the hair of the patient, even at an advanced stage of baldness.
  • it is implanted for example on the mastoid or on the temporo-occipital bone as represented on the figure 1 .
  • the housing can be easily attached to the patient's head and maintained in all positions and during normal movements thereof.
  • the microphone or microphones on the housing 1 are far enough away from the earpiece, and separated by the horn of the ear that serves as a screen between the reverberated sound from the external ear canal and the microphone.
  • the acoustic feedback effect between the reverberated sound coming from the external auditory canal arriving on the microphone (s) is very attenuated or even suppressed (depending on the amplification and the opening of the mouthpiece, sought) because of the combination of the two means consisting on the one hand of the sufficient distance between the ear canal and the microphones or microphones located near the temporo-occipital zone, and on the other hand the existence of a natural acoustic barrier formed by the ear pavilion.
  • the housing 1 may have a small thickness so as not to show an excess thickness when it is masked by the hair.
  • the link 4 between the housing 1 and the earphone 3 is constituted by an electric cable.
  • the earpiece includes an electroacoustic transducer for insertion into the patient's external auditory canal.
  • this connection 4 is an acoustic tube.
  • the earphone is integrated in the outer casing 1 and extended by the acoustic tube 4 which is waterproof and has a length adapted to reach the bottom of the external auditory canal of the patient.
  • the earpiece contained in the housing is equipped with a mechanical anti-feedback damping device (damping vibrations generated by the earphone). It should be noted that there is no phenomenon of acoustic feedback because the sound waves generated by the earphone are channeled through the acoustic tube.
  • the cable 4 is semi-rigid so as to accurately follow a predefined path between the housing 1 and the bottom of the external auditory canal, for example by bypassing the ear from above, and keeping the earphone 3 in a certain position. position in the external auditory canal.
  • it is not necessary to close the ear canal with a plug to hold the earpiece in place.
  • the link 4 may be flexible and the earpiece 3 or the end of the acoustic tube is maintained and centered in the external auditory canal by an in-ear support 9.
  • the in-ear support 9 comprises a central housing intended to receive the earphone 3 or the end of the acoustic tube, this central housing being connected to an outer tubular element 8c by spacers 8a, 8b delimiting with the outer tubular element vents allowing good ventilation of the ear canal.
  • the tubular element 8c is preferably made of a compressible and / or elastic material, or is molded according to the anatomy of the auditory canal of the patient.
  • the invention makes it possible to maintain on the patient's head a hearing aid device in an almost invisible manner, only the link 4 remaining visible, while being very discreet.
  • the virtual absence of feedback makes it possible, on the one hand, to increase the patient's hearing performance thanks to better amplification and, on the other hand, to reduce the problems of hygiene and occlusion phenomenon (sensation of plugged ear) resulting from the quasi-closing ear plug, which can advantageously be replaced by the open ear support 9.
  • the housing 1 encloses a magnetic part 12, for example a ferromagnetic material, which is arranged against a face of the housing so as to be placed opposite and close to the implanted housing 2, when placing the prosthesis on the patient's head.
  • the housing 1 also contains electronic circuits 11 fed by a thin battery (not shown), and a sensor 13 connected to the electronic circuits.
  • the piece of ferromagnetic material may be housed in the implanted housing 2, and the magnet disposed in the housing 1.
  • the senor 13 must be positioned in a precise orientation relative to the patient's head.
  • certain hearing aid devices comprise a directional microphone or several omnidirectional microphones which must be oriented so as to restore information on the direction of origin of the sounds, these microphones must be positioned precisely so that the prosthesis can restore sound. exact direction of provenance from perceived sounds.
  • the figure 4 represents a hearing aid housing enclosing two microphones 13a, 13b. So that the housing and therefore the microphones are arranged in a precise orientation relative to the patient's head, the permanent magnet 21 is implanted under the skin so as to have a north-south axis (shown in the figure by the arrow 24) oriented in a certain direction parallel to the surface of the skull. Furthermore, the part 12 housed in the housing 1 is replaced by a magnet 12 ', for example a permanent magnet whose north-south axis 22 is oriented in a predefined direction, parallel to the face of the housing intended to come s' apply against the patient's skin. In this way, the casing 1 can only be held on the patient's head in a certain orientation.
  • the permanent magnet 12 ' shown on the figure 4 is replaced by two magnets 12a, 12b whose north-south axes 22a, 22b are oriented perpendicularly to the face of the housing intended to be applied against the skin of the patient, and in opposite directions.
  • the north-south axes 22a, 22b are spaced apart by a distance corresponding to the distance separating the north and south poles of the implanted magnet 2.
  • the casing 1 can also be held on the patient's head in a certain predefined orientation thanks to the embodiment shown on the figure 6 .
  • the implanted housing 2 comprises two magnets 21a, 21b whose north-south axes 24a, 24b are oriented perpendicularly to the surface of the skull, and in opposite directions.
  • the housing 1 then encloses a single magnet 12 'as shown in FIG. figure 4 or two magnets 12a, 12b as shown in the figure 5 or 6 these magnets being arranged in the housing so as to face an implanted magnet 21a, 21b respectively, of the same orientation, when the housing 1 is placed in the desired orientation on the patient's head.
  • the outer casing 1 comprises a circular base 1a in which are housed one or two magnets 12a and 12b, and a lid 1b also of circular shape, in which are fixed the microphones 13a, 13b, and possibly the electronic circuits, and the source of energy.
  • the base is held on the skull of the patient always in the same orientation according to one of the embodiments shown on the Figures 4 to 6 , depending on the respective polarities of the magnetic parts 21, 21a, 21b, while the lid 1b is pivotally mounted on the base 1a, and locked in an angular position relative to the latter by a fixing means, for example consisting of a central screw 25 passing through the lid and screwed into a central pivot provided in the base 1a.
  • a fixing means for example consisting of a central screw 25 passing through the lid and screwed into a central pivot provided in the base 1a.
  • the magnets are totally electrically isolated in the base, so as to avoid any electrical contact with the electronic circuits housed in the cover.
  • the figure 8 shows in broken lines three different positions of the cover relative to the base (the cable 4 rotates while the magnets 12a, 12b remain fixed).
  • the microphone or microphones 13, 13a, 13b can thus be oriented in an optimal manner and with great precision by the practitioner responsible for setting the device or by the patient, following the implantation of the housing 2. Of this In this way, any implantation inaccuracies of the implanted housing 2 are dispensed with, resulting notably from differences in morphology from one patient to another. The patient can thus dispose and remove the housing 1 with great ease, always having the assurance that the microphones will be oriented correctly.
  • the microphone or microphones 13, 13a, 13b can also be arranged at the end of a respective rigid cable, connected to the outer casing 1. If the cable is conformable by the practitioner following the installation of the implanted housing 2, to arrange and correctly orient the microphones or microphones relative to the patient's head, it is not necessary that the outer casing 1 has a portion 1 has steerable.
  • the implanted housing 2 advantageously comprises, in addition to the magnetic parts 21a, 21b, a system for collecting evoked or spontaneous auditory potentials.
  • This system comprises at least two extra-cochlear collection electrodes 35, 36 connected to the housing.
  • This system also comprises an electronic collection module 32 for amplifying and possibly processing the signals from the electrodes, 35, 36, a transfer module 33 including a transmitting antenna for transmitting to the outside for example by electromagnetic waves , via an amplitude or frequency modulation, the signals produced by the collection module 32, a power supply 31 comprising a battery and / or coils capturing the electromagnetic energy coming from an external coil, for example provided in the housing external 1.
  • the housing 1 may also comprise a receiving module connected to a coil / antenna for receiving the signals emitted by the transfer module 33. In this case, the outer coil and the antenna of the receiving module can be fixed to the base 1a or cover 1b of the outer casing.
  • At least one of the collection electrodes 35, 36 is intended to be implanted near the inner ear of the patient, preferably on the round window.
  • the collection module is designed to amplify and treat evoked or spontaneous acoustic potentials.
  • the collection electrodes 35, 36 are implanted under the skin of the patient, also in the temporo-occipital region of the skull, to measure evoked potentials and the collection module 32 is designed to amplify and possibly treat such potentials.
  • the electrodes are for example arranged at the end of flexible tabs 34a, 34b attached to the housing 2.
  • a reference electrode R disposed on the housing 2 and connected to the collection module 32.
  • the housing 2 encloses, alternately or in combination with the collection module 32, a stimulation module 37 connected to at least one active stimulation electrode 38, 39, implanted near the patient's inner ear, for example on the oval window or the round window of the middle ear, or in the cochlea.
  • the stimulation module 37 is connected to at least one neutral stimulation electrode remote from the inner ear.
  • the pacing module is adapted to generate pacing signals from signals received from the outer casing 1 via the transfer module 33.
  • the electrodes 38, 39 may be replaced or combined with an electromechanical transducer vibrator, for example of the piezoelectric type, implanted in a bone or cartilaginous zone, preferably close to the patient's inner ear, to effect electromechanical stimulation.
  • an electromechanical transducer vibrator for example of the piezoelectric type, implanted in a bone or cartilaginous zone, preferably close to the patient's inner ear, to effect electromechanical stimulation.
  • the collection and stimulation electrodes are, according to an advantageous variant, common and can operate alternately in collection mode and stimulation mode.
  • one of the electrodes 38, 39 is positioned on the round window and is both an active stimulation electrode, and alternatively, one of the potential acquisition electrodes. hearing.

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  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Acoustics & Sound (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Neurosurgery (AREA)
  • Signal Processing (AREA)
  • Prostheses (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
  • Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
  • Adornments (AREA)
  • Finger-Pressure Massage (AREA)
  • Percussion Or Vibration Massage (AREA)

Claims (15)

  1. Akustisches Hörhilfegerät, das wenigstens ein Tonsignal erzeugt und am Körper eines Patienten befestigt werden kann, mit einem externen Gehäuse (1), das ein Elektronikmodul (11) zur Signalbehandlung enthält, das am Eingang mit wenigstens einem Mikrofon (13, 13a, 13b) und am Ausgang mit einem vorgesehenen Hörer (3) verbunden ist, um ein Tonsignal in den externen Hörkanal (5) des Patienten zu senden, einer Energiequelle und einer Tonsignal-Verteileinrichtung in dem den Hörer (3) aufweisenden Hörkanal des Patienten, und einer Verbindung (4) zwischen dem externen Gehäuse (1) und dem Hörkanal des Patienten, mit einer solchen Länge, dass das Mikrofon ausreichend weit entfernt von dem Hörkanal gehalten werden kann, um Larsen Effekte zu vermeiden, in welchem
    - der Hörer (3) in dem externen Hörkanal (5) des Patienten angeordnet ist und ein intra-aurikulares Ende der Verbindung (4) bildet, wobei die Verbindung (4) durch ein elektrisches Kabel gebildet wird,
    dadurch gekennzeichnet, dass dieses ferner umfasst:
    - wenigstens ein erstes Magnetteil (12, 12', 12a, 12b), das in dem externen Gehäuse (1) angeordnet ist,
    - wenigstens ein zweites Magnetteil (21, 21a, 21b), das in einem implantierbaren Gehäuse (2) angeordnet ist, das unter die Haut des Patienten implantiert werden kann, an einer Stelle des Körpers, an der das externe Gehäuse (1) gehalten werden soll, wobei das erste Magnetteil in dem Gehäuse angeordnet ist, damit eine magnetische Anziehungskraft mit dem zweiten Magnetteil ausgeübt wird, wenn das externe Gehäuse (1) an dieser Stelle angeordnet wird,
    in welchem das erste und zweite Magnetteil (12', 21) Permanentmagnete sind und das zweite Magnetteil in dem implantierten Gehäuse (2) derart angeordnet ist, dass dieses eine magnetische Nord/Süd-Achse aufweist, die im Wesentlichen parallel zur Oberfläche der Haut des Patienten an dieser Stelle ist, und das erste Magnetteil in dem externen Gehäuse (1) derart angeordnet ist, dass dieses eine magnetische Nord/Süd-Achse aufweist, die im Wesentlichen parallel zur Wand des Gehäuses ist, das in Kontakt mit der Haut des Patienten kommen soll.
  2. Akustisches Hörhilfegerät, das wenigstens ein Tonsignal erzeugt und am Körper eines Patienten befestigt werden kann, mit einem externen Gehäuse (1), das ein Elektronikmodul (11) zur Signalbehandlung enthält, das am Eingang mit wenigstens einem Mikrofon (13, 13a, 13b) und am Ausgang mit einem vorgesehenen Hörer (3) verbunden ist, um ein Tonsignal in den externen Hörkanal (5) des Patienten zu senden, einer Energiequelle und einer Tonsignal-Verteileinrichtung in dem den Hörer (3) aufweisenden Hörkanal des Patienten, und einer Verbindung (4) zwischen dem externen Gehäuse (1) und dem Hörkanal des Patienten, mit einer solchen Länge, dass das Mikrofon ausreichend weit vom Hörkanal gehalten werden kann, um die Larsen-Effekte zu vermeiden, in welchem
    - der Hörer (3) in dem externen Hörkanal (5) des Patienten angeordnet ist und ein intra-aurikulares Ende der Verbindung (4) bildet, wobei die Verbindung (4) durch ein elektrisches Kabel gebildet wird,
    dadurch gekennzeichnet, dass dieses ferner umfasst:
    - wenigstens ein erstes Magnetteil (12, 12', 12a, 12b), das in dem externen Gehäuse (1) angeordnet ist,
    - wenigstens ein zweites Magnetteil (21, 2 1 a, 21b), das in einem implantierbaren Gehäuse (2) angeordnet ist, das unter die Haut des Patienten implantiert werden kann, an einer Stelle des Körpers, an welcher das externe Gehäuse (1) gehalten werden soll, wobei das erste Magnetteil in dem Gehäuse angeordnet ist, damit eine magnetische Anziehungskraft mit dem zweiten Magnetteil ausgeübt wird, wenn das externe Gehäuse (1) an dieser Stelle angeordnet wird,
    in welchem das zweite Magnetteil (21) ein Magnet ist und das erste Magnetteil zwei Permanentmagnete (12a, 12b) aufweist, die in dem externen Gehäuse (1) derart angeordnet sind, dass diese magnetische Nord/Süd-Achsen aufweisen, die im Wesentlichen senkrecht zur Wand des Gehäuses verlaufen, das in Kontakt mit der Haut des Patienten kommen soll, und in umgekehrten Richtungen, wobei diese Magnetachsen voneinander in einem Abstand angeordnet sind, der im Wesentlichen dem Abstand zwischen den Polen des zweiten Magnetteils (21) entspricht.
  3. Akustisches Hörhilfegerät, das wenigstens ein Tonsignal erzeugt und am Körper eines Patienten befestigt werden kann, mit einem externen Gehäuse (1), das ein Elektronikmodul (11) zur Signalbehandlung enthält, das am Eingang mit wenigstens einem Mikrofon (13, 13a, 13b) und am Ausgang mit einem vorgesehenen Hörer (3) verbunden ist, um ein Tonsignal in den externen Hörkanal (5) des Patienten zu senden, einer Energiequelle und einer Tonsignal-Verteileinrichtung in dem den Hörer (3) aufweisenden Hörkanal des Patienten, und einer Verbindung (4) zwischen dem externen Gehäuse (1) und dem Hörkanal des Patienten, mit einer solchen Länge, dass das Mikrofon ausreichend weit vom Hörkanal gehalten werden kann, um die Larsen-Effekte zu vermeiden, in welchem
    - der Hörer (3) in dem externen Hörkanal (5) des Patienten angeordnet ist und ein intra-aurikulares Ende der Verbindung (4) bildet, wobei die Verbindung (4) durch ein elektrisches Kabel gebildet wird,
    dadurch gekennzeichnet, dass dieses ferner umfasst:
    - wenigstens ein erstes Magnetteil (12, 12', 12a, 12b), das in dem externen Gehäuse (1) angeordnet ist,
    - wenigstens ein zweites Magnetteil (21, 2 1 a, 21b), das in einem implantierbaren Gehäuse (2) angeordnet ist, das unter die Haut des Patienten implantiert werden kann, an einer Stelle des Körpers, an welcher das externe Gehäuse (1) gehalten werden soll, wobei das erste Magnetteil in dem Gehäuse angeordnet ist, damit eine magnetische Anziehungskraft mit dem zweiten Magnetteil ausgeübt wird, wenn das externe Gehäuse (1) an dieser Stelle angeordnet wird,
    in welchem das erste Magnetteil (12') ein Magnet ist und das zweite Magnetteil zwei Permanentmagnete (21a, 21b) aufweist, die in dem implantierten Gehäuse (2) derart angeordnet sind, das diese magnetische Nord/Süd-Achsen aufweisen, die im Wesentlichen senkrecht zur Oberfläche der Haut des Patienten an dieser Stelle verlaufen, und in umgekehrten Richtungen, wobei diese Magnetachsen voneinander in einem Abstand angeordnet sind, der im Wesentlichen dem Abstand zwischen den Polen des ersten Magnetteils (12') entspricht.
  4. Akustisches Hörhilfegerät, das wenigstens ein Tonsignal erzeugt und am Körper eines Patienten befestigt werden kann, mit einem externen Gehäuse (1), das ein Elektronikmodul (11) zur Signalbehandlung enthält, das am Eingang mit wenigstens einem Mikrofon (13, 13a, 13b) und am Ausgang mit einem vorgesehenen Hörer (3) verbunden ist, um ein Tonsignal in den externen Hörkanal (5) des Patienten zu senden, einer Energiequelle und einer Tonsignal-Verteileinrichtung in dem den Hörer (3) aufweisenden Hörkanal des Patienten, und einer Verbindung (4) zwischen dem externen Gehäuse (1) und dem Hörkanal des Patienten, mit einer solchen Länge, dass das Mikrofon ausreichend weit vom Hörkanal gehalten werden kann, um Larsen Effekte zu vermeiden, in welchem
    - der Hörer (3) in dem externen Hörkanal (5) des Patienten angeordnet ist und ein intra-aurikulares Ende der Verbindung (4) bildet, wobei die Verbindung (4) durch ein elektrisches Kabel gebildet wird,
    dadurch gekennzeichnet, dass dieses ferner umfasst:
    - wenigstens ein erstes Magnetteil (12, 12', 12a, 12b), das in dem externen Gehäuse (1) angeordnet ist,
    - wenigstens ein zweites Magnetteil (21, 2 1 a, 21b), das in einem implantierbaren Gehäuse (2) angeordnet ist, das unter die Haut des Patienten implantiert werden kann, an einer Stelle des Körpers, an welcher das externe Gehäuse (1) gehalten werden soll, wobei das erste Magnetteil in dem Gehäuse angeordnet ist, damit eine magnetische Anziehungskraft mit dem zweiten Magnetteil ausgeübt wird, wenn das externe Gehäuse (1) an dieser Stelle angeordnet wird,
    in welchem das zweite Magnetteil wenigstens zwei Permanentmagnete (21a, 21b) umfasst, die in dem implantierten Gehäuse (2) derart angeordnet sind, dass diese magnetische Nord/Süd-Achsen aufweisen, die im Wesentlichen senkrecht zur Oberfläche der Haut des Patienten an dieser Stelle verlaufen, und alternativ in umgekehrten Richtungen, und das erste Magnetteil genauso viele Permanentmagnete (12a, 12b) das zweite Magnetteil in dem Gehäuse derart angeordnet sind, dass diese magnetische Nord/Süd-Achsen aufweisen, die im Wesentlichen senkrecht zur Wand des externen Gehäuses (1) verlaufen, dass in Kontakt mit der Haut des Patienten kommen soll, und alternativ in umgekehrten Richtungen, wobei die magnetischen Achsen der in dem externen Gehäuse (1) angeordneten Magnete in einer Ebene im Wesentlichen parallel zu dieser Wand verteil sind, und zwar in einer Konfiguration, die im Wesentlichen der Konfiguration der Verteilung der magnetischen Achsen der Magnete (21a, 21b) im implantierten Gehäuse entspricht.
  5. Hörhilfegerät nach einem der Ansprüche 1 bis 4,
    dadurch gekennzeichnet, dass das zweite Gehäuse (2) vorgesehen ist, um in die temporo-occipitale Zone des Schädels des Patienten implantiert zu werden.
  6. Hörhilfegerät nach einem der vorhergehenden Ansprüche,
    dadurch gekennzeichnet, dass das intra-aurikulare Ende der Verbindung (4) in dem externen Hörkanal (5) des Patienten mithilfe eines intra-aurikularen Halters (9) gehalten wird, der Mittel (8a, 8b, 8c) zur Zentrierung und Selbsthaltung dieses Endes in dem Hörkanal (5) aufweist.
  7. Hörhilfegerät nach einem der vorhergehenden Ansprüche,
    dadurch gekennzeichnet, dass das externe Gehäuse (1) umfasst einen Sockel (1b) und einen drehbar am Sockel montierten Deckel (1a), und eine Blockiereinrichtung (25) der Winkelposition des Deckels in Bezug zum Sockel, wobei das zweite Magnetteil (21, 21a, 21b) am Sockel befestig ist, während die ein oder mehreren Mikrofone (13, 13a, 13b) am Deckel befestigt sind.
  8. Hörhilfegerät nach einem der vorhergehenden Ansprüche,
    dadurch gekennzeichnet, dass das implantierte Gehäuse (2) mit wenigstens zwei Sammelelektroden (35, 36) mit hervorgerufenen oder spontanen Hörpotentialen verbunden ist, wobei das implantierte Gehäuse (2) enthält wenigstens ein Elektronikmodul (32) zum Sammeln und Behandeln des Signals, das mit zwei Sammelelek-troden verbunden ist, ein Übertragungsmodul (33), das mit einer Antenne und mit dem Sammel- und Behandlungsmodul verbunden ist, um die durch das Sammelmodul erzeugten Signale in Abhängigkeit von den durch die Elektroden gesammelten Signale an das externe Gehäuse (1) zu übertragen, und eine elektrische Versorgung (31).
  9. Hörhilfegerät nach Anspruch 8,
    dadurch gekennzeichnet, dass eine der Sammelelektroden (35, 36) vorgesehen ist, um an dem runden Fenster angeordnet zu werden.
  10. Hörhilfegerät nach einem der vorhergehenden Ansprüche,
    dadurch gekennzeichnet, dass das implantierte Gehäuse (2) ferner mit wenigstens einer aktiven Stimulationselektrode (38, 39) verbunden ist, die in der Nähe des Innenohrs des Patienten oder in der Schnecke platziert werden kann, wobei das implantierte Gehäuse (2) wenigstens enthält ein Elektronik-Stimulationsmodul (37), das mit den Stimulationselektroden verbunden ist, ein Übertragungsmodul (33), das mit einer Antenne und dem Stimulationsmodul verbunden ist, wobei das Stimulationsmodul (37) vorgesehen ist, um elektrische Stimulationssignale zu erzeugen, die an die Stimulationselektroden (38, 39) ausgehend von Signalen angelegt werden, die vom externen Gehäuse 1 mithilfe des Übertragungsmoduls (33) empfangen werden, und zwar über die Antenne, die in dem implantierten Gehäuse liegt.
  11. Hörhilfegerät nach Anspruch 10,
    dadurch gekennzeichnet, dass eine der aktiven Stimulationselektroden (38, 39) vorgesehen ist, um an dem runden Fenster des Mittelohrs des Patienten angeordnet zu werden.
  12. Hörhilfegerät nach einem der Ansprüche 8 bis 11,
    dadurch gekennzeichnet, dass die Sammelelektroden (35, 36) und die Stimulationselektroden (38, 39) teilweise gemeinschaftlich vorliegen.
  13. Hörhilfegerät nach einem der Ansprüche 8 bis 12,
    dadurch gekennzeichnet, dass das externe Gehäuse (1) ferner ein Signal-Übertragungsmodul umfasst, das mit wenigstens einer Antenne und dem Elektronikmodul (11) verbunden ist.
  14. Hörhilfegerät nach einem der Ansprüche 9 bis 13,
    dadurch gekennzeichnet, dass das implantierte Gehäuse (2) ferner mit wenigstens einem elektromagnetischen Schwingungswandler verbunden ist, der in einer Knochen- oder Knorpelzone in der Nähe des Innenohrs des Patienten positioniert werden kann, wobei das implantierte Gehäuse (2) wenigstens ein Elektronik-Stimulationsmodul (37) enthält, das mit einer Antenne und dem Stimulationsmodul verbunden ist, wobei das Stimulationsmodul (37) vorgesehen ist, um elektrische Stimulationssignale zu erzeugen, die an den Schwingungserzeuger ausgehend von den Signalen angelegt werden, die vom externen Gehäuse 1 mithilfe des Übertragungsmoduls (33) über die in dem implantierten Gehäuse liegende Antenne empfangen werden.
  15. Hörhilfegerät nach einem der vorhergehenden Ansprüche, in welchem der Hörer (3) einen elektroakustischen Wandler umfasst, der in den Hörkanal des Patienten eingesetzt werden kann.
EP03760752A 2002-06-21 2003-06-19 Teilplantierbares hörhilfegerät Expired - Lifetime EP1522208B1 (de)

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FR0207738 2002-06-21
FR0207738A FR2841429B1 (fr) 2002-06-21 2002-06-21 Dispositif d'aide auditive pour la rehabilitation de patients ateints de surdites neurosensorielles partielles
PCT/FR2003/001889 WO2004002193A1 (fr) 2002-06-21 2003-06-19 Dispositif d'aide auditive partiellement implante

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US7266208B2 (en) 2007-09-04
FR2841429B1 (fr) 2005-11-11
AU2003260612A1 (en) 2004-01-06
WO2004002193A1 (fr) 2003-12-31
US20060015155A1 (en) 2006-01-19
FR2841429A1 (fr) 2003-12-26
EP1522208A1 (de) 2005-04-13
DE60334002D1 (de) 2010-10-14

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