DE20314005U1 - Improved sound transmission in hearing aids that use sound transmission through the bone using a vibration generator with good contact - Google Patents

Improved sound transmission in hearing aids that use sound transmission through the bone using a vibration generator with good contact Download PDF

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Publication number
DE20314005U1
DE20314005U1 DE20314005U DE20314005U DE20314005U1 DE 20314005 U1 DE20314005 U1 DE 20314005U1 DE 20314005 U DE20314005 U DE 20314005U DE 20314005 U DE20314005 U DE 20314005U DE 20314005 U1 DE20314005 U1 DE 20314005U1
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DE
Germany
Prior art keywords
sound transmission
bone
good contact
vibration generator
hearing aids
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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.)
Expired - Lifetime
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DE20314005U
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German (de)
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Siegert Ralf Prof Dr Drmed
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Siegert Ralf Prof Dr Drmed
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Application filed by Siegert Ralf Prof Dr Drmed filed Critical Siegert Ralf Prof Dr Drmed
Priority to DE20314005U priority Critical patent/DE20314005U1/en
Publication of DE20314005U1 publication Critical patent/DE20314005U1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R25/00Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception
    • H04R25/65Housing parts, e.g. shells, tips or moulds, or their manufacture
    • H04R25/652Ear tips; Ear moulds
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2460/00Details of hearing devices, i.e. of ear- or headphones covered by H04R1/10 or H04R5/033 but not provided for in any of their subgroups, or of hearing aids covered by H04R25/00 but not provided for in any of its subgroups
    • H04R2460/13Hearing devices using bone conduction transducers
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R25/00Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception
    • H04R25/60Mounting or interconnection of hearing aid parts, e.g. inside tips, housings or to ossicles

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Neurosurgery (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Percussion Or Vibration Massage (AREA)

Abstract

The hearing aid has sound transmitted as a mechanical vibration transmitted through the bone. The vibration generator [1] connects with suitable plastic plug [2] that is inserted into the ear channel. Good contact with the bone can be made by a suitable elastic silicon coating or by building in some form of spring.

Description

Bei Patienten mit schweren Erkrankungen des Mittelohres kann häufig kein Hörgerät über Luftleitung angepasst werden. Bei ihnen kann daher der Schall nur als Knochenschall direkt zum Innenohr unter Umgehung des Schallleitungsapparates des äußeren und Mittelohr erfolgen. Die Ankopplung des Festkörperschalls an den Knochen kann mit Hilfe von Vibratoren, die an die Kopfhaut gepresst werden, oder über offene Schraubenimplantate erfolgen. Beide Methoden haben unterschiedliche Nachteile. Dazu zählen der teilweise unangenehme Andruck an den Kopf und die grundsätzlichen Probleme offener Implantate. Eine direkte Ankopplung an festen Knochen über offene Implantate erfordert nur einen direkten Kontakt mit dem schwingenden Festkörper.In patients with severe diseases of the Middle ear can often no hearing aid via air line be adjusted. With them, therefore, the sound can only be heard as bone sound directly to the inner ear bypassing the sound conduction apparatus of the outer and Middle ear. The coupling of solid-state sound to the bone can be done with the help of vibrators, which are pressed against the scalp, or over open ones Screw implants are made. Both methods have different ones Disadvantage. These include the sometimes uncomfortable pressure on the head and the basic ones Problems with open implants. Direct coupling to solid bones via open ones Implants only require direct contact with the vibrating one Solids.

Bei den implantatlosen Knochenleitungshörgeräten dient der erforderliche Andruck an die Kopfhaut dazu, die elastischen Eigenschaften des Weichgewebes über der Schädelkalotte zu modifizieren und dadurch den Impedanzsprung vom Vibrator durch die Haut und das subkutane Gewebe in den Knochen zu reduzieren. Die Dämpfung und damit die Hörleistung ist u.a. von der Dicke des Weichgewebes abhängig und in gewissem Umfang von dem Andruck abhängig. Bei einer dünnen, wenig elastischen und nur gering dämpfenden Weichgewebsschicht kann der Druck gering gehalten werden.For implantless bone conduction hearing aids the necessary pressure on the scalp, the elastic Properties of the soft tissue about the skull cap to modify and thereby through the impedance jump from the vibrator reduce the skin and subcutaneous tissue in the bones. The damping and thus the hearing performance is among others depending on the thickness of the soft tissue and to a certain extent depending on the pressure. With a thin, little elastic and only slightly damping soft tissue layer the pressure can be kept low.

Daher bietet sich die akustische Ankopplung durch einen vorhandenen oder chirurgisch konstruierten Gehörgang an, der über dem Gehörgangsknorpel und oder -knochen nur eine sehr dünne Haut aufweist. Ausführungsbeispiele sind in 1 bis 3 dargestellt:Therefore, the acoustic coupling through an existing or surgically constructed auditory canal offers itself, which has only a very thin skin over the auditory canal cartilage and or bone. Embodiments are in 1 to 3 shown:

1: Knochenleitungshörgerät mit Gehörgangsankopplung 1 : Bone conduction hearing aid with ear canal coupling

2: Otoplastik der 1 mit elastischer Teilbeschichtung (Pfeil) 2 : Otoplasty of the 1 with elastic partial coating (arrow)

3: Otoplastik der 1 mit Teilung und Feder (Pfeil) 3 : Otoplasty of the 1 with division and spring (arrow)

Die Schallübertragung erfolgt von einem Vibrator (1) als Festkörperschall in eine individuell angepasste Otoplastik (2), die dem Gehörgangsschlauch (3) unmittelbar anliegt (1). Ergänzend dazu kann der Andruck durch eine einseitig aufgetragene dünne Schicht eines elastischen Materials (4) (z.B. Silikon) erhöht werden (2). Eine weitere Möglichkeit, den Andruck leicht zu erhöhen, besteht darin, die Otoplastik (2) zu teilen und mit einer Feder (5) zu verbinden, die den sicheren Kontakt zum Gehörgangsschlauch gewährleistet (3).The sound is transmitted by a vibrator ( 1 ) as solid-borne sound in an individually adapted earmold ( 2 ) that connect the ear canal tube ( 3 ) is immediately 1 ). In addition, the pressure can be applied by a thin layer of elastic material applied on one side ( 4 ) (e.g. silicone) can be increased ( 2 ). Another way to increase the pressure slightly is to use the earmold ( 2 ) to share and with a spring ( 5 ) to ensure that there is a secure contact with the auditory canal tube ( 3 ).

Claims (3)

Knochenleitungshörgerät mit Gehörgangsankopplung dadurch gekennzeichnet, dass ein Vibrator mit einer dem Gehörgang individuell angepassten Otoplastik verbunden wird.Bone conduction hearing aid with ear canal coupling characterized in that a vibrator is connected to an ear mold individually adapted to the ear canal. Knochenleitungshörgerät mit Gehörgangsankopplung nach Schutzanspruch 1 dadurch gekennzeichnet, dass die individuell angepasste Otoplastik teilweise mit einem elastischen Material beschichtet ist.Bone conduction hearing aid with ear canal coupling according to protection claim 1, characterized in that the individual adapted earmold is partially coated with an elastic material. Knochenleitungshörgerät mit Gehörgangsankopplung nach Schutzanspruch 1 dadurch gekennzeichnet, dass die individuell angepasste Otoplastik aus zwei, durch eine Feder miteinander verbundenen Teilen zusammengesetzt ist.Bone conduction hearing aid with ear canal coupling according to protection claim 1, characterized in that the individual customized otoplastic made of two parts connected by a spring is composed.
DE20314005U 2003-09-08 2003-09-08 Improved sound transmission in hearing aids that use sound transmission through the bone using a vibration generator with good contact Expired - Lifetime DE20314005U1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE20314005U DE20314005U1 (en) 2003-09-08 2003-09-08 Improved sound transmission in hearing aids that use sound transmission through the bone using a vibration generator with good contact

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE20314005U DE20314005U1 (en) 2003-09-08 2003-09-08 Improved sound transmission in hearing aids that use sound transmission through the bone using a vibration generator with good contact

Publications (1)

Publication Number Publication Date
DE20314005U1 true DE20314005U1 (en) 2004-01-15

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Family Applications (1)

Application Number Title Priority Date Filing Date
DE20314005U Expired - Lifetime DE20314005U1 (en) 2003-09-08 2003-09-08 Improved sound transmission in hearing aids that use sound transmission through the bone using a vibration generator with good contact

Country Status (1)

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DE (1) DE20314005U1 (en)

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DE20314005U1 (en) Improved sound transmission in hearing aids that use sound transmission through the bone using a vibration generator with good contact

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Effective date: 20040219

R156 Lapse of ip right after 3 years

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