WO1994009606A1 - Appareil de traitement du tinnitus - Google Patents

Appareil de traitement du tinnitus Download PDF

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Publication number
WO1994009606A1
WO1994009606A1 PCT/EP1993/002199 EP9302199W WO9409606A1 WO 1994009606 A1 WO1994009606 A1 WO 1994009606A1 EP 9302199 W EP9302199 W EP 9302199W WO 9409606 A1 WO9409606 A1 WO 9409606A1
Authority
WO
WIPO (PCT)
Prior art keywords
frequency
treatment device
tinnitus treatment
control circuit
tinnitus
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.)
Ceased
Application number
PCT/EP1993/002199
Other languages
German (de)
English (en)
Inventor
Sören Erik WESTERMANN
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.)
Topholm and Westermann ApS
Original Assignee
Topholm and Westermann ApS
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 Topholm and Westermann ApS filed Critical Topholm and Westermann ApS
Priority to AU49490/93A priority Critical patent/AU4949093A/en
Publication of WO1994009606A1 publication Critical patent/WO1994009606A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F11/00—Methods or devices for treatment of the ears or hearing sense; Non-electric hearing aids; Methods or devices for enabling ear patients to achieve auditory perception through physiological senses other than hearing sense; Protective devices for the ears, carried on the body or in the hand
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R25/00—Electric hearing aids
    • H04R25/50—Customised settings for obtaining desired overall acoustical characteristics
    • H04R25/505—Customised settings for obtaining desired overall acoustical characteristics using digital signal processing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R25/00—Electric hearing aids
    • H04R25/75—Electric tinnitus maskers providing an auditory perception

Definitions

  • the invention relates to a tinnitus treatment device according to the preamble of claim 1.
  • a tinnitus masker is for Trt clothes of tinnitus already known from DE 40 14 872.6 AI known "With this device, a Signalgene ⁇ least rator provided which generates log I Continual repeating the Hörfrequenz ⁇ area slowly moves through forming sinusoidal tone signal whose Cycle time between 0, 1 and a maximum of 1000 seconds, and its upper and lower limit frequency and the center frequency can be set optionally. This signal is fed to the user's ear by means of an electroacoustic transducer »
  • Tinnitus stands for a wide range of symptoms, all of which have to do with hearing function, in particular with the middle ear, the organ of the Corti, the nerve cells and the nerve strands, and the nerve centers that lead from the organ of the Corti to the brain.
  • the reason why the patient believes he is hearing a tone at a certain frequency is evidently to be seen in the fact that the very nerve that would normally transmit an audible tone of that frequency to the brain for some reason is or is stimulated sporadically or continuously and remains in this excitation state for longer or shorter periods. This could be caused, for example, by an electromechanical disturbance or such a “misfire” in this nerve cell or in a previous nerve cell.
  • the object of the invention is to make a device of the type mentioned at the outset suitable for the treatment of tinnitus in normal hearing users usable also for the hearing impaired or hearing impaired person, who also suffers from tinnitus.
  • Tinnitus patients is typical
  • FIG. 2 shows the course of the sound signal sweeping over the area of the hearing loss
  • Fig. 3 course of a curve of the apparently uniform loudness perceived by the patient, as can be approximated by the device;
  • Fig. 5 shows a basic circuit diagram of the tinnitus treatment device according to the invention.
  • Fig. 1 is a purely schematic representation of the course of an auditory curve which contains a region of a hearing impairment lying between 2000 Hz and 4000 Hz, as occurs frequently. In this area there should also be a more or less strong, continuous or intermittent tinnitus, which is perceived as disturbing or even annoying, the frequency of which is indicated here by a broken line 1. This dashed line also represents several frequencies lying side by side. The preferably sinusoidal sound signal sweeping over this area is indicated by an ellipse 2 provided with arrows.
  • FIG. 2 shows the course of the hearing curve 2, where a sound signal that is otherwise supplied with a constantly uniform level and that spans the frequency range 2000 Hz to 4000 Hz is to be adapted to the hearing curve or modified so that the user has the most uniform possible hearing impression .
  • the sound signal sweeping over the area is also indicated by the ellipses 2. As will be shown later, even non-uniform listening impressions are conceivable and representable for the user.
  • the signal audible to the user should be constantly 20 dB above the hearing threshold in this area, so that a constant auditory impression is created for the user in the area containing the tinnitus.
  • Fig. 3 this is shown in principle.
  • Curve 4 shows the ideal course of the level of the sound signal that sweeps the area, which should be approximated as closely as possible.
  • two filters for example a low-pass filter I and a high-pass filter II with adjoining, preferably slightly overlapping passage areas, and the damping curves represented by the dashed lines 5 and 6, one can resulting curve 7 represent len, which is already approaching the desired curve.
  • FIG. 4 Another example is shown in FIG. 4 “The ideal course 4 is again shown in the greatly simplified form.
  • a corresponding damping signal can be assigned to each of these individual discrete frequencies of the steps, so that the one shown in FIG. 4 shown resulting course 7 receives.
  • Fig. 5 shows in principle a circuit arrangement with which such a signal can be generated.
  • the whole device which can be accommodated both in a single housing and in a two-part housing, contains a control circuit 21 which, for. B. can be a microprocessor that can be connected or connected to an input / output device 22 directly or indirectly.
  • a control circuit 21 which, for. B. can be a microprocessor that can be connected or connected to an input / output device 22 directly or indirectly.
  • This input / output device can contain, for example, pushbuttons, switches or an entire keyboard, it can also be set up for serial or parallel data / information input, for example in connection with a programmable data processing system.
  • the control circuit 21 contains two table memories 23 and 24 via data Connections 25 and 26 connected. In the T ⁇ bel len arrived 23 z. B. Discrete frequencies or frequency intervals le stored, while in the table lens memory 24 these frequencies or. Attenuation values to be assigned to frequency intervals are stored. This will be explained in more detail.
  • a digital / analog converter 27 is connected to the control circuit 2 1, to which a converter stage 28 is connected, which converts frequencies or frequency intervals into voltage values or voltage levels. These voltage values are fed to a programmed or programmable attenuator 29, by means of which the individual level values are generated in accordance with the desired profile of the output signal.
  • An output amplifier 30 is connected to the attenuator 29 and controls an electro-acoustic transducer 31.
  • a first clock generator 32 for the frequency intervals is also connected to the control circuit 21.
  • an adjustable or programmable clock generator 33 is also provided for the duration of treatment. This clock generator can also be used for the repetition frequency, i.e. can be used to control the cycle duration of the output signal.
  • the input / output device 22 can be used, for example, to input information about the frequency range which is to be swept periodically or discontinuously by the output signal.
  • a level function can be entered, which the for each frequency or. each frequency interval l sets the required damping, which is then stored in the table lens memory 24. It is also possible to enter the desired frequency response of the output signal via the input / output device and to store it in the table memory 23.
  • the frequency information could also be entered as a continuous sequence of discrete frequencies or frequency intervals via the control circuit 21 and the data lines in the table memory 23.
  • control circuit 21 would then calculate all frequency parameters and would store them in the table memory 23.
  • the level function could be entered in the form of discrete level values for each discrete frequency.
  • the control circuit would then save this in the table memory 24.
  • this level function could also be entered in the form of parameters for an algorithm. Then the control circuit would the individual level values for each frequency or. calculate l for each frequency interval and then store these values in the table memory 24.
  • the device is programmed in one of these ways, then it can be used by the user.
  • the sinusoidal signal reaches the programmable attenuator 29 from the voltage / frequency converter 28, so that the level of the sinusoidal output signal of the attenuator is determined by the level parameter supplied to the programmable attenuator 29.
  • the output signal of the attenuator is then fed to an output amplifier 30 which controls an electroacoustic transducer 31, so that the user can hear this sinusoidal sound signal.
  • the clock generator 32 interrupts the control circuit 21, which then calls the next pair of parameters from the table memories and outputs them to the digital / analog converter and the attenuator, and thus initiates the generation of the next frequency with its corresponding level.
  • the entire method ends after a programmed time when the second clock generator 33 interrupts the control circuit 21, which then stops the entire process and is ready for the reception of further commands from the input / output device 22.
  • the device can also be ligth.
  • all parts of the circuit of FIG. 5, with the exception of the output amplifier and the electroacoustic transducer, are accommodated in one device part, and that the output signal occurring there, for example, on a recording device, such as, B. a micro-cassette can be recorded.
  • a playback device with a preamplifier and an electroacoustic transducer, e.g. B. an earphone or headphones and could use it to carry out the treatment.
  • a preamplifier e.g. B. an earphone or headphones
  • an electroacoustic transducer e.g. B. an earphone or headphones
  • the entire programming of the device should be done by an experienced hearing care professional. It is also important that the device is used in an ENT clinic only under the guidance or supervision of an experienced hearing care professional, but even better under the supervision of a doctor.
  • This new device can also be used to treat tinnitus for the hearing impaired or the hearing impaired. It has been shown that temporary or complete suppression of tinnitus is possible with such treatment. After treatment for two to three minutes, the tinnitus disappeared completely for about 10 minutes during treatment, but then came back at a significantly reduced intensity and was only more audible after a few days. »In some other cases, the tinnitus could be completely ig be made to disappear.

Landscapes

  • Health & Medical Sciences (AREA)
  • Acoustics & Sound (AREA)
  • General Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Signal Processing (AREA)
  • Neurosurgery (AREA)
  • Biophysics (AREA)
  • Psychology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Animal Behavior & Ethology (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)

Abstract

L'invention concerne un appareil de traitement du tinnitus, comportant un générateur destiné à produire un signal à durée de cycle ajustable, de préférence sinusoïdal, balayant lentement et à plusieurs reprises la plage de fréquence audible, et un convertisseur électro-acoustique (31) destiné à délivrer un signal audio correspondant à l'oreille humaine. Dans cet appareil, le signal de sortie du générateur et, par conséquent, le signal acoustique de sortie de l'appareil en fonction de la fréquence ou des fréquences peut être commandé d'après une caractéristique programmée prédéfinie. La modification du signal de sortie s'opère au moyen d'un atténuateur (29) pouvant être commandé et programmé.
PCT/EP1993/002199 1992-10-16 1993-08-18 Appareil de traitement du tinnitus Ceased WO1994009606A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU49490/93A AU4949093A (en) 1992-10-16 1993-08-18 Tinnitus-treatment device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19924234964 DE4234964A1 (de) 1992-10-16 1992-10-16 Tinnitus-Behandlungsgerät
DEP4234964.8 1992-10-16

Publications (1)

Publication Number Publication Date
WO1994009606A1 true WO1994009606A1 (fr) 1994-04-28

Family

ID=6470663

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1993/002199 Ceased WO1994009606A1 (fr) 1992-10-16 1993-08-18 Appareil de traitement du tinnitus

Country Status (3)

Country Link
AU (1) AU4949093A (fr)
DE (1) DE4234964A1 (fr)
WO (1) WO1994009606A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29718503U1 (de) * 1997-10-17 1999-02-18 Lux-Wellenhof, Gabriele, 65830 Kriftel Gerät zur Behandlung von Tinitus und Hyperakusis
US6816599B2 (en) 2000-11-14 2004-11-09 Topholm & Westermann Aps Ear level device for synthesizing music

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4431493A1 (de) * 1994-09-03 1996-03-07 Wolfgang Treutner Gerät zur Beseitigung von Störgeräuschen im Ohr
DE59607724D1 (de) * 1996-07-09 2001-10-25 Siemens Audiologische Technik Programmierbares Hörgerät

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2055020A (en) * 1979-07-26 1981-02-18 Danavox As Tinnitus masking device
GB2134689A (en) * 1983-01-26 1984-08-15 Nat Res Dev Tinnitus masking
WO1990007251A1 (fr) * 1988-12-22 1990-06-28 Franz Junker Appareil servant a couvrir le bourdonnement d'oreilles
DE4014872A1 (de) * 1990-05-09 1991-11-14 Toepholm & Westermann Tinnitus-maskiergeraet

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2055020A (en) * 1979-07-26 1981-02-18 Danavox As Tinnitus masking device
GB2134689A (en) * 1983-01-26 1984-08-15 Nat Res Dev Tinnitus masking
WO1990007251A1 (fr) * 1988-12-22 1990-06-28 Franz Junker Appareil servant a couvrir le bourdonnement d'oreilles
DE4014872A1 (de) * 1990-05-09 1991-11-14 Toepholm & Westermann Tinnitus-maskiergeraet
WO1991017638A1 (fr) * 1990-05-09 1991-11-14 Tøpholm & Westermann APS Dispositif de masquage du tintement d'oreilles

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29718503U1 (de) * 1997-10-17 1999-02-18 Lux-Wellenhof, Gabriele, 65830 Kriftel Gerät zur Behandlung von Tinitus und Hyperakusis
US6816599B2 (en) 2000-11-14 2004-11-09 Topholm & Westermann Aps Ear level device for synthesizing music

Also Published As

Publication number Publication date
AU4949093A (en) 1994-05-09
DE4234964A1 (de) 1994-04-21

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