EP4258694A1 - Prothèse auditive, en particulier prothèse auditive intra-auriculaire - Google Patents

Prothèse auditive, en particulier prothèse auditive intra-auriculaire Download PDF

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Publication number
EP4258694A1
EP4258694A1 EP23165146.4A EP23165146A EP4258694A1 EP 4258694 A1 EP4258694 A1 EP 4258694A1 EP 23165146 A EP23165146 A EP 23165146A EP 4258694 A1 EP4258694 A1 EP 4258694A1
Authority
EP
European Patent Office
Prior art keywords
antenna
hearing aid
arms
housing
hollow body
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.)
Pending
Application number
EP23165146.4A
Other languages
German (de)
English (en)
Inventor
Hamed Hasani
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sivantos Pte Ltd
Original Assignee
Sivantos Pte Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sivantos Pte Ltd filed Critical Sivantos Pte Ltd
Publication of EP4258694A1 publication Critical patent/EP4258694A1/fr
Pending legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R25/00—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception
    • H04R25/50—Customised settings for obtaining desired overall acoustical characteristics
    • 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
    • H04R25/602—Mounting or interconnection of hearing aid parts, e.g. inside tips, housings or to ossicles of batteries
    • 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
    • H04R25/55—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception using an external connection, either wireless or wired
    • H04R25/554—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception using an external connection, either wireless or wired using a wireless connection, e.g. between microphone and amplifier or using Tcoils
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/27—Adaptation for use in or on movable bodies
    • H01Q1/273—Adaptation for carrying or wearing by persons or animals
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
    • H01Q1/362—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith for broadside radiating helical antennas
    • 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
    • H04R2225/025—In the ear hearing aids [ITE] hearing aids
    • 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
    • H04R2225/43—Signal processing in hearing aids to enhance the speech intelligibility
    • 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
    • H04R2225/51—Aspects of antennas or their circuitry in or for hearing aids

Definitions

  • the invention relates to a hearing aid, in particular an in-the-ear hearing aid (ITE), having a device housing with a housing shell that can be inserted into an ear canal and with a housing shell that closes the housing shell when worn Surrounding area facing, housing front panel, a battery accommodated in the device housing, a signal processing device with a mass surface being arranged at least in sections between the battery and the housing front panel.
  • ITE in-the-ear hearing aid
  • Hearing aids are portable hearing aids that are used in particular to provide care for people who are hard of hearing or have hearing impairments.
  • different designs of hearing aids such as behind-the-ear hearing aids (BTE) and hearing aids with an external receiver (RIC: receiver in the canal) as well as in-the-ear hearing aids (ITE, ITE) are available.
  • BTE behind-the-ear hearing aids
  • RIC receiver in the canal
  • ITE in-the-ear hearing aids
  • ITE in-the-ear hearing aids
  • CIC concha hearing aids or canal hearing aids
  • the hearing aids listed as examples are worn on the outer ear or in the ear canal of a hearing aid user.
  • bone conduction hearing aids, implantable or vibrotactile hearing aids are also available on the market. The damaged hearing is stimulated either mechanically or electrically.
  • such hearing aids have an input transducer, an amplifier and an output transducer as essential (hearing aid) components.
  • the input transducer is typically an acousto-electrical transducer, such as a microphone.
  • the output transducer is usually an electro-acoustic transducer, for example as a miniature loudspeaker (listener), or as an electromechanical one Transducer, such as a bone conduction listener, realized.
  • the amplifier is usually integrated into a signal processing device. The energy is usually supplied by a battery or a rechargeable accumulator.
  • Such hearing aids also have, for example, an electromagnetic receiver, for example an antenna element as an RF antenna, by means of which the hearing aid can be coupled in terms of signaling, for example with a control element (remote control) and/or with another hearing aid.
  • an electromagnetic receiver for example an antenna element as an RF antenna
  • the hearing aid can be coupled in terms of signaling, for example with a control element (remote control) and/or with another hearing aid.
  • the same antenna element is usually used for sending and receiving data.
  • Hearing aids are preferably designed to be particularly space-saving and compact, so that they can be worn as visually as inconspicuous as possible by a hearing aid user.
  • increasingly smaller hearing aids are being produced, which are increasingly more comfortable to wear and are therefore hardly noticeable by a user when worn on or in one ear.
  • due to the resulting reduced installation space it is increasingly difficult to accommodate and/or install conventional antenna elements for wireless signal transmission in such hearing aids.
  • the radiation efficiency of the antenna element integrated into the device housing and its sensitivity to the environment is a problem. Due to the limited area that is available as installation space for the antenna element, the antenna element generally only has a low radiation efficiency and a high sensitivity to the ear shape of the hearing aid user. This adversely affects the antenna development process for ITE hearing aids, as each antenna element must be individually adapted to a particular environment or ear shape.
  • An “ear shape” is to be understood in particular as meaning the shape of an auditory canal of the ear in which the original hearing aid sits.
  • a quasi-monopole antenna or a PIF antenna Planar Inverted F-Shaped Antenna, PIFA
  • an attempt can be made to arrange the antenna element further out, for example by using a monopole antenna cast into the front panel, which uses the battery as a ground plane.
  • the antenna element can also be integrated into a pull-out thread of the ITE hearing aid. It is also conceivable, for example, to integrate a dipole on an outer surface of the front panel.
  • the invention is based on the object of specifying a particularly suitable hearing aid.
  • a hearing aid with an antenna element is to be specified, which has good radiation efficiency and a high level of robustness compared to different ear shapes of a hearing aid user.
  • the hearing aid according to the invention is designed in particular as an in-the-ear hearing aid, i.e. as an ITE or ITE hearing aid.
  • the hearing aid can be designed as a binaural hearing aid with two individual devices.
  • the hearing aid has a device housing with a housing shell that can be inserted into an ear canal of a hearing aid user and with a housing front plate (faceplate) that closes the housing shell and faces the environment when worn.
  • a battery is accommodated in the device housing, with a signal processing device with a mass surface being arranged at least in sections between the battery and the housing front panel.
  • the ground plane is in particular a radio frequency ground plane (RF ground plane) or a high frequency ground plane (HF ground plane), i.e.
  • a ground plane for electrical signals in the radio frequency, radio wave or high frequency range.
  • a ground plane is one flat or substantially flat horizontal conductive surface which can be coupled to an antenna device, for example to reflect radio waves.
  • the ground surface in particular forms a (second) pole of an antenna device.
  • an antenna device designed as a folded dipole with at least two folded antenna arms is provided, which is arranged between the ground surface and the housing front panel.
  • the size of the antenna device or the antenna arms is advantageously reduced by folding.
  • the basic idea with folded (miniaturized) antennas is to expand the current paths in a limited volume to reduce the resonant frequency.
  • Folded antennas can essentially be divided into two categories: planar (2D) antennas with meandering or zigzag shapes, and volumetric (3D) antennas with, for example, a helical shape.
  • the antenna arms are guided volumetrically as spatial spirals or helices along a height direction.
  • a spatial spiral is to be understood in particular as a spherical spiral or conical spiral.
  • the height direction is perpendicular to the mass surface and oriented outwards when worn.
  • the spiral or helical antenna arms each have at least one turn or one gear.
  • the spiral or helical antenna arms each have at least one and a half (1.5) turns or turns.
  • the antenna arms each have an antenna pole at their antenna ends, with the antenna poles arranged at a distance from the ground surface being electrically connected to one another.
  • the other antenna end or the other antenna pole is coupled to a (signal) feed in one of the antenna arms, the other antenna poles of the remaining antenna arms being electrically contacted with the ground surface and thus electrically short-circuited with one another. This creates a particularly suitable hearing aid.
  • a folded spiral or helix antenna is therefore implemented on the ground surface above the battery.
  • This antenna device makes particularly effective use of the available construction volume, which subsequently leads to an advantageous bandwidth in relation to the antenna size.
  • a compact antenna device with a high level of efficiency for ITE hearing aids is thus realized.
  • the antenna arms of the antenna device form a resonance structure so that the use of tuning elements (e.g. inductors, capacitors) can be avoided.
  • the antenna device with its axis (height direction) directed outwards towards the ear, is far enough away from body materials of the hearing aid user so that the signal properties of the antenna device depend less or essentially not on the respective ear shape of the hearing aid user.
  • the antenna device is integrated into the device housing in such a way that the antenna performance is essentially independent of the ear shape.
  • an identical antenna device can be used for the left and right individual devices.
  • the antenna arms of the antenna device are arranged rotationally symmetrical to one another and, for example, uniformly distributed with respect to the height direction.
  • the antenna arms are arranged rotated by 180° relative to each other in relation to the height direction.
  • the antenna device has exactly two or three antenna arms.
  • the antenna formed by the antenna arms has an impedance with a real part and an imaginary part.
  • the aim is in particular to bring the real part to a resistance of 50 ⁇ (Ohm) at the desired frequency (for example 2.44 GHz) and to dimension the imaginary part to 0 ⁇ .
  • HF radio frequency
  • the number of antenna arms determines the real part, while the number of turns determines the imaginary part.
  • the number of turns is preferably chosen such that the imaginary part is 0 ⁇ is brought so that maximum antenna radiation efficiency is ensured. In other words, the number of turns is chosen such that the antenna is resonant at a desired frequency (operating frequency, transmission frequency). And that's why the number of turns is more important than the number of antenna arms.
  • the antenna device has a hollow body spanning the mass surface.
  • the antenna arms are arranged on a surface, in particular on an outer surface, which faces the environment when worn.
  • the antenna arms are therefore carried or supported by the hollow body, so that the mechanical stability of the antenna device is improved by the hollow body.
  • the hollow body is made from an electrically non-conductive material.
  • the hollow body is designed as a plastic injection molded part.
  • the hollow body is made from a plastic material suitable for laser direct structuring (LDS), the antenna arms being applied to the hollow body by means of laser direct structuring.
  • a thermoplastic is doped with a (non-conductive) laser-activated metal compound as a plastic additive.
  • the hollow body is produced from this plastic material, for example, using a one-component injection molding process.
  • the later conductor tracks or microstrip lines of the antenna arms are then written onto the plastic of the hollow body with a laser beam, whereby the plastic additive is activated.
  • the activated areas are then locally provided with an electrically conductive metallization as a microstrip line or conductor track. This makes it possible to realize a particularly compact and stable antenna device.
  • the hollow body is (hollow) cylindrical or tubular, with the antenna arms helically on the lateral surface are guided, and wherein the antenna poles are electrically connected to one another by means of a front ring conductor.
  • the design of the hollow body as a (hollow) cylinder has the advantage, for example, that a triggering device, in particular in the form of a push button, can be applied to the mass surface in the center of the cylinder without the antenna device influencing or blocking its actuation .
  • the hollow body is hemispherical (hemispherical shell-shaped) or dome-shaped, with the antenna arms being guided spirally on the spherical surface (spherical shell surface), and with the antenna poles being electrically connected to one another by means of a conductive contact surface in the area of a vertex.
  • the development as a hemisphere or dome has the particular advantage of an organic shape, which makes it possible to make the antenna device - and thus the hearing aid - smaller and more compact in terms of installation space.
  • the housing front panel has an outwardly directed bulge or receptacle into which the antenna device engages at least partially in a form-fitting manner. This means that the antenna device in the bulge extends beyond the base area of the housing front panel, thereby ensuring that the radiation and performance properties of the antenna device are less dependent on the respective individual ear shape.
  • Hearing aid 2 shown is designed as an ITE hearing aid or ITE hearing aid.
  • the hearing aid 2 includes a housing shell 4 that is individually adapted to a hearing aid user's ear canal and is closed by means of a lid-like housing front plate (faceplate) 6.
  • faceplate housing front plate
  • a space is accommodated in which the hearing aid components of the hearing aid 2 are arranged.
  • the figures show an example of a signal processing device 10 and a (hearing aid) battery 12 as well as a transmitting and receiving unit (transceiver) 14 for electromagnetic waves.
  • the housing shell 4 and the housing front panel 6 can be designed as separate components.
  • a one-piece, i.e. one-piece or monolithic, device housing 8 is also conceivable.
  • the signal processing device 10 here has a motherboard with a printed circuit board (PCB) 16.
  • the circuit board 16 has an integrated ground plane 18 as a radio frequency ground plane (RF ground plane).
  • RF ground plane radio frequency ground plane
  • the approximately U-shaped circuit board 16 surrounds the battery 12 at least in sections, so that an arrangement with a compact installation space is realized.
  • the transmitting and receiving unit 14 has two antenna devices 20, 22.
  • the antenna device 20 is designed as a magnetic induction antenna and is arranged on one of the vertical U-legs of the circuit board 16.
  • the antenna device 20 is intended, for example, for a wireless ear-to-ear connection (ear-to-ear, e2e) in a binaural hearing aid 2.
  • the antenna device 22 is suitable and set up, for example, for wireless 2.4 GHz Bluetooth signal transmission in an ISM frequency band.
  • the antenna device 22 is designed as a folded dipole with two ( Fig. 3 to 5 ) or three ( Fig. 6 to 9 ) folded antenna arms 24a, 24b, 24c are provided, which are arranged between the ground surface 18 and the housing front panel 6.
  • the antenna arms 24a, 24b are designed volumetrically as two spatial spherical spirals.
  • the spherical spirals or antenna arms 24a, 24b extend starting from the mass surface 18 along a height direction H, which is perpendicular to the mass surface 18 and, when the hearing aid 2 is worn, points in the direction of the surroundings or outwards.
  • the antenna arms 24a, 24b each have one and a half turns.
  • the antenna arms 24a, 24b each have two antenna ends, which are designed as antenna poles 26, 28.
  • the antenna poles 26, 28 are used to connect and contact the antenna arms 24a, 24b.
  • the antenna pole 26 is the antenna pole which is formed on an antenna end facing the mass surface 18, the antenna pole 28 correspondingly being the antenna pole which is arranged at a distance from the mass surface 18.
  • the antenna arms 24a, 24b are arranged rotationally symmetrically with respect to a central axis, which is oriented along the height direction H.
  • the antenna arm 24a can be imaged onto the antenna arm 24b by means of a 180° rotation and vice versa.
  • the antenna pole 26 of the antenna arm 24a is coupled to a (signal) feed, the antenna pole 26 of the antenna arm 24b being contacted with the ground surface 18.
  • the antenna poles 28 of the antenna arms 24a, 24b are connected to one another.
  • the antenna device 22 has three antenna arms 24a, 24b, 24c guided as spherical spirals, which are arranged rotationally symmetrically offset from one another by 120 °.
  • the antenna pole 26 of the antenna arm 24a is coupled to a (signal) feed, the antenna poles 26 of the antenna arms 24b and 24c being short-circuited to one another via the ground surface 18.
  • the antenna poles 28 of the antenna arms 24a, 24b, 24c are connected to one another.
  • the antenna device 22 has a hemispherical or dome-shaped hollow body 30 as a support structure for the antenna arms 24a, 24b, 24c.
  • the hollow body 30 is arranged above the mass surface 18, so that the circuit board 16 is partially overlapped by the hollow body 30.
  • the hollow body 30 is produced as an injection molded part from a plastic material suitable for laser direct structuring (LDS), the antenna arms 24a, 24b, 24c being applied to the hollow body 30, i.e. to an outer mass surface 18, by means of laser direct structuring facing away surface, are applied.
  • the common connection point or the antenna pole 28 is designed as a contact surface 32, which is arranged on the front side or in the area of a vertex of the hollow body 32.
  • the device housing 8 or the housing front plate 6 has a trough-like or bead-like bulge 34 or receptacle in which the hollow body 32 and the antenna arms 24a, 24b, 24c engage in sections.
  • the antenna device 22 has three helical antenna arms 24a, 24b, 24c, which are guided on a lateral surface of a hollow cylindrical or tubular hollow body 30.
  • the antenna poles 28 are connected to one another by means of a front ring conductor 36.
  • the antenna arms 24a, 24b, 24c each have two turns or gears between the antenna poles 26, 28.

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  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Neurosurgery (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Support Of Aerials (AREA)
EP23165146.4A 2022-04-07 2023-03-29 Prothèse auditive, en particulier prothèse auditive intra-auriculaire Pending EP4258694A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102022203528.3A DE102022203528A1 (de) 2022-04-07 2022-04-07 Hörgerät, insbesondere In-dem-Ohr-Hörgerät

Publications (1)

Publication Number Publication Date
EP4258694A1 true EP4258694A1 (fr) 2023-10-11

Family

ID=85781966

Family Applications (1)

Application Number Title Priority Date Filing Date
EP23165146.4A Pending EP4258694A1 (fr) 2022-04-07 2023-03-29 Prothèse auditive, en particulier prothèse auditive intra-auriculaire

Country Status (4)

Country Link
US (1) US20230328466A1 (fr)
EP (1) EP4258694A1 (fr)
CN (1) CN116962949A (fr)
DE (1) DE102022203528A1 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20200335855A1 (en) * 2019-04-19 2020-10-22 Bose Corporation Multi-arm spiral antenna for a wireless device
EP3836564A1 (fr) * 2019-12-11 2021-06-16 GN Hearing A/S Prothèse auditive destinée à être placée dans le canal auditif d'un utilisateur avec un bouton de commande et une bobine inductive

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11140496B2 (en) 2019-02-26 2021-10-05 Starkey Laboratories, Inc. Ear-worn electronic device incorporating an integrated battery/antenna module

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20200335855A1 (en) * 2019-04-19 2020-10-22 Bose Corporation Multi-arm spiral antenna for a wireless device
EP3836564A1 (fr) * 2019-12-11 2021-06-16 GN Hearing A/S Prothèse auditive destinée à être placée dans le canal auditif d'un utilisateur avec un bouton de commande et une bobine inductive

Also Published As

Publication number Publication date
DE102022203528A1 (de) 2023-10-12
US20230328466A1 (en) 2023-10-12
CN116962949A (zh) 2023-10-27

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