CN101491114A - 听觉传输系统 - Google Patents

听觉传输系统 Download PDF

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CN101491114A
CN101491114A CNA2007800270901A CN200780027090A CN101491114A CN 101491114 A CN101491114 A CN 101491114A CN A2007800270901 A CNA2007800270901 A CN A2007800270901A CN 200780027090 A CN200780027090 A CN 200780027090A CN 101491114 A CN101491114 A CN 101491114A
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transmission system
audiological
audiological transmission
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S·迪特里赫
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Cerbomed GmbH
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    • 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
    • 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
    • H04R25/75Electric tinnitus maskers providing an auditory perception
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61NELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N1/00Electrotherapy; Circuits therefor
    • A61N1/02Details
    • A61N1/04Electrodes
    • A61N1/0404Electrodes for external use
    • A61N1/0408Use-related aspects
    • A61N1/0456Specially adapted for transcutaneous electrical nerve stimulation [TENS]
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61NELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N1/00Electrotherapy; Circuits therefor
    • A61N1/18Applying electric currents by contact electrodes
    • A61N1/32Applying electric currents by contact electrodes alternating or intermittent currents
    • A61N1/36Applying electric currents by contact electrodes alternating or intermittent currents for stimulation
    • A61N1/36014External stimulators, e.g. with patch electrodes
    • A61N1/36017External stimulators, e.g. with patch electrodes with leads or electrodes penetrating the skin
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61NELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N1/00Electrotherapy; Circuits therefor
    • A61N1/18Applying electric currents by contact electrodes
    • A61N1/32Applying electric currents by contact electrodes alternating or intermittent currents
    • A61N1/36Applying electric currents by contact electrodes alternating or intermittent currents for stimulation
    • A61N1/3605Implantable neurostimulators for stimulating central or peripheral nerve system
    • A61N1/3606Implantable neurostimulators for stimulating central or peripheral nerve system adapted for a particular treatment
    • A61N1/36082Cognitive or psychiatric applications, e.g. dementia or Alzheimer's disease
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61NELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N1/00Electrotherapy; Circuits therefor
    • A61N1/18Applying electric currents by contact electrodes
    • A61N1/32Applying electric currents by contact electrodes alternating or intermittent currents
    • A61N1/36Applying electric currents by contact electrodes alternating or intermittent currents for stimulation
    • A61N1/3605Implantable neurostimulators for stimulating central or peripheral nerve system
    • A61N1/3606Implantable neurostimulators for stimulating central or peripheral nerve system adapted for a particular treatment
    • A61N1/361Phantom sensations, e.g. tinnitus
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61NELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N1/00Electrotherapy; Circuits therefor
    • A61N1/18Applying electric currents by contact electrodes
    • A61N1/32Applying electric currents by contact electrodes alternating or intermittent currents
    • A61N1/36Applying electric currents by contact electrodes alternating or intermittent currents for stimulation
    • A61N1/36036Applying electric currents by contact electrodes alternating or intermittent currents for stimulation of the outer, middle or inner ear
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2225/00Details of deaf aids covered by H04R25/00, not provided for in any of its subgroups
    • H04R2225/021Behind the ear [BTE] hearing aids

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Abstract

本发明涉及一种听觉传输系统(1),其被设计为佩带在人耳上、人耳内或人耳后,并且包括壳体(2)、电的放大器(3)、扬声器(4)和用于耳朵的用于声学信号的输出通道(5)。为了有利地增强这种传输系统的功能,本发明规定传输系统(1)还具有用于人体神经的经皮刺激的设备(6),所述设备具有用于经皮神经刺激的至少一个刺激电极(7)和至少一个基准电极(8)。

Description

听觉传输系统
技术领域
本发明涉及听觉传输系统(audiological transmission system),该听觉传输系统被设计为佩戴在人耳上、人耳内或人耳后,并且具有至少一个壳体、电的放大器、扬声器和用于耳朵的用于声学信号的输出通道。
背景技术
已知一般类型的多种听觉装置。这样的装置通常被称为“助听器”。它们被用于通过声学地将声响(noise)放大到适于佩戴助听器的人的声级来改善受听力损失困扰或患有听力损失疾病的人的听力。例如,说出的单词因此被电子地放大,并且放大后的信号被传递到听力困难的人的耳朵,从而这个人能够更好地再次聆听。另外,利用通常通过使用微处理器而实现的多种算法实现功能,例如屏蔽环境和干扰噪声。
另一种听觉传输系统、即所谓的“耳鸣掩蔽器(tinnitus masker)”或“耳鸣噪声器(tinnitus noisers)”或“耳鸣仪器(tinnitusinstruments)”被用于改善耳内具有噪音的病人的状态。存在这样的噪声、声音或其他音质,它们被患者“听到”,但是它们的产生不是基于实际的声源。这些也被称为“幻声(phantom noises)”。出于缓解的目的,在耳后、耳上或耳内佩戴产生特定音质的声音或噪声、并将它们传递到耳朵的装置。这样的“噪声产生器”旨在掩盖幻声,并从而使得它们是更可忍受的。
已经公开了使用对神经的侵入式或非侵入式电刺激来影响神经的神经电质量(neuroelectrical quality),并从而影响被刺激的神经的功能的经皮神经刺激(transcutaneous nerve stimulation)的装置。这种方法的目的通常是引起精神植物神经(psychovegetative)改变,例如舒缓压力,或治疗神经精神异常。
在以前所知的解决方案的情况下,下面的情况已经证明是特别不利的:
以前还未公开可既在听力困难或耳鸣问题的情况中、又在神经学,神经精神病学或心身问题的情况中使用的装置。
听力缺陷、并且特别是如上所述可用所谓的耳鸣掩蔽器治疗的耳内噪声经常伴随有心身异常,例如情绪低落、抑郁、睡眠紊乱等。
特别地,过去已经使用对迷走神经的侵入式刺激成功地治疗情绪低落。在该情况下,使用神经外科方法将产生电流脉冲、并从而导致迷走神经的神经生理质量改变的刺激器植入病人脖子的左侧区域中。如许多研究中所示出的那样,对迷走神经的刺激对于综合病症(syndrome),诸如癫痫症和抑郁有积极的效果。
已经证明植入(implantological)刺激在多个方面是不利的。这些方面尤其包括与侵入式介入相关联的手术风险、与手术相关联的神经损伤风险和感染风险。另外,病人有“被体外地控制”的感觉。还应当提到这样的刺激器以及手术的高费用以及必需的基础设施。
偶尔已经描述了对迷走神经的非侵入式刺激,但是以前已知的解决方案有时只提供不令人满意的结果。
对于两种方法,即常规的听觉传输系统和对迷走神经的经皮刺激的广泛使用,希望将这两种技术集成到小且易于管理的(manageable)装置中,该装置尽可能能够被佩戴在耳上、耳内或耳后,并且能够在任何时候以不显眼的方式并且不复杂地被佩戴。
发明内容
因此,基于最初所提到的类型的听觉系统,本发明基于这样的目的,即提出这样一种装置,从而能够满足所述的希望。本发明提供一种装置,该装置一方面被用于简单有效的经皮神经刺激,并且另一方面具有常规听觉传输系统的所有需要和特征。目标是将两个系统集成在一个装置中,并且两个系统能够以彼此相关以及彼此无关的方式被使用。旨在通过组合两种方法和系统实现治疗价值的高收益。
本发明的这个目的的实现的特征在于,最初提及的听觉传输系统的区别特征为其还具有用于人体神经的经皮刺激的设备,所述设备包括用于经皮神经刺激的至少一个刺激电极和至少一个基准电极。
在该情况下,用于神经的经皮刺激的设备优选是传输系统的组成部分。
优选地,在壳体中以模块方式容纳听觉传输系统的功能,该壳体被设计为装在人耳上、人耳内或人耳后。可以将两个系统,即刺激系统和传输系统组合在印刷电路板上。还可以将传输装置的电路和印刷电路板当作基底(base),包含刺激装置的电路和印刷电路板的第二模块可以以不可逆或可逆方式被施加到该基底。例如,这可以使用插槽(slot plug-in)连接或其它变体实现。
在该情况下,特别地,该装置被设计并适于刺激外耳道和/或耳廓的区域中的迷走神经。
优选地,听觉传输系统的至少一个电子或机械控制元件以及用于经皮神经刺激的设备的至少一个电子或机械控制元件被构造为公共模块。可以设置传输系统的至少一个参数和刺激设备的至少一个参数,并且将其适配于佩带使用这样的模块的装置的人的需要。在例如传输系统的一个参数改变的情况下,根据一种扩展方式,根据特定的依赖算法(dependent algorithm)自动改变刺激单元的至少一个刺激参数而无需其它协助。该算法可以被存储在公共存储器芯片(memorychip)、例如微处理器或闪存内。然而,也可以以类似方式进行设置,例如使用连接的电位计。
不是被集成在听觉传输系统的壳体内,相反,根据另一扩展方式,用于对神经的经皮刺激的设备具有其自己的壳体,该壳体可以借助于无线连接、缆线型连接或其它连接,例如插入(plug-in)连接而被连接到传输系统的壳体。为此,设计传输系统的壳体,使得它包括用于连接到用于神经刺激的设备的至少一个连接点,或包括用于连接到用于神经刺激的设备的无线接收器或其它接收器。这两个系统之间的连接可被配置为是能拆卸的(releasable)、能临时拆卸的或是固定的。
刺激设备的壳体可以被构造为芯片系统,该芯片系统可以以可逆或不可逆的方式被连接到传输系统。芯片可以具有其自己的电源,或当连接到传输系统时还可以利用传输系统的电源。
经皮神经刺激模块可以包含附加电路,该附加电路例如可以使用微芯片,以记录、评估或以其他方式处理来自旨在测量生理学参数(例如,血氧饱和、心率变异)或其它参数、并且被装到人体的至少一个传感器的信息。这个附加电路还可以独立于刺激模块地被装到听觉传输系统的印刷电路板,或以另一方式被连接到所述传输系统。
根据本发明的听觉传输系统的特征可以在于,传输系统在声学信号的输出通道的区域中具有弓形延伸部分,其中弓形延伸部分在那里被耦接或可以被耦接,并被设计为被插入到耳道中,该弓形延伸部分与耳朵的形状或者耳道入口或外耳道的形状匹配,并且在弓形延伸部分的端部处在用于输出声学信号的开口旁边设置电极头,该电极头具有至少一个刺激电极。
可以在刺激电极的旁边设置基准电极,但是基准电极也可以位于装置的其他位置。根据本发明的一种扩展方式,用于测量生理学参数或环境参数的至少一个传感器位于弓形延伸部分的端部处在用于输出声学信号的开口以及电极头的旁边,所述传感器被连接到身体表面和/或被连接到环境,或者被嵌入弓形延伸部分的端部中而不与环境接触。
弓形延伸部分可以是管状的中空物(hollow),并且可以具有用于输出声学信号的开口。然而,它还可以具有引向位于电极头中的具体化的(externalized)扬声器的缆线连接。
就材料而言,可以以多种方式配置电极头。电极优选是由碳纤维、不锈钢、导电塑料制成的平坦表面电极,并且可被涂敷以具有石墨插入物的海绵状材料等,以便改进导电性。电极可被以固定的方式或通过对其进行推动而被设置到例如由有机玻璃(perspex)、硅树脂、陶瓷、金属或生物适合的(biocompatible)其他材料制成的电极头内。
如果电极头被插入,则电极接触皮肤的表面,并且一方面可以刺激位于那里的神经中的一部分,并且另一方面可以声学地输出声音到耳朵。
附图说明
在附图中示出了本发明的一个示例性实施例,其中:
图1示出了集成有用于刺激迷走神经的设备的听觉传输系统的透视图;
图2示出了具有各个核心组件的听觉传输系统的纵截面;和
图3示出了具有弓形延伸部分和电极头的听觉系统的一个端部区域的透视图。
具体实施方式
在附图中图示地示出了根据本发明的听觉传输系统1的设计。听觉传输系统1主要包括壳体2,助听器的基本组件被集成到壳体2中,或者助听器的基本组件被安装到壳体2,即扬声器4、麦克风12、电的放大器3、电池19,和例如切换开/关功能的多功能开关20。
壳体2被配置为使得它例如在纵向侧上具有至少一个夹箍连接10。用于神经的经皮刺激的设备6可以以可逆或不可逆的方式被安装到这个夹箍连接10,其中用于神经的经皮刺激的设备6被引入到另一壳体9中。设备6可以包括用于设置和控制该设备的刺激(stimulation)参数的开关21。
还可以耦接开关21和多功能开关20,使得可以使用多功能开关20设置设备6的参数。同样,设备6还可以被完全集成在壳体2中。
利用用于声学信号的输出通道5转送(forward)已经被电的放大器3放大并且已经利用扬声器4输出的声音信号。
如在图2中可见的那样,用于神经的经皮刺激的设备6的壳体9还可以借助于电耦接元件(插头插座连接)而被连接到壳体2。
耦接元件11被连接到用于刺激电极7和基准电极8的引线。引线和电极7、8在用于声学信号的输出通道5内,也就是说在被固定到输出通道5的端部的弓形延伸部分13中。
图3示出了弓形延伸部分13的细节。如所提到的那样,弓形延伸部分13的一端被固定(fasten)到输出通道5的端部。电极头(electrode head)14被设置在其另一端。除了引线和电极7和8之外,还可以在那里设置传感器18。
也可以将传感器18设置在电极头14中。电极头14包括被用作刺激电极和基准电极,即被电连接到引线和电极7、8的触点15和16。还在电极头14中设置用于输出声学信号的开口17。如所提到的那样,电极头14还具有传感器18。
还可以将扬声器4集成在电极头14中。
附图标记列表
1 听觉传输系统
2 壳体
3 电的放大器
4 扬声器
5 用于声学信号的输出通道
6 用于神经的经皮刺激的设备
7 刺激电极(用于刺激电极的引线)
8 基准电极(用于基准电极的引线)
9 壳体
10 夹箍连接
11 电耦接元件
12 麦克风
13 弓形延伸部分
14 电极头
15 触点
16 触点
17 用于输出声学信号的开口
18 传感器
19 电池
20 多功能开关(包括开/关开关)
21 开关

Claims (19)

1.一种听觉传输系统(1),所述听觉传输系统(1)被设计为被佩带在人耳上、人耳内或人耳后,并且包括壳体(2)、电的放大器(3)、扬声器(4)和用于耳朵的用于声学信号的输出通道(5),
其特征在于
所述听觉传输系统(1)还包括用于人体神经的经皮刺激的设备(6),所述设备包括用于经皮神经刺激的至少一个刺激电极(7)和至少一个基准电极(8)。
2.如权利要求1的听觉传输系统,其特征在于,所述用于人体神经的经皮刺激的设备(6)是所述听觉传输系统(1)的组成部分。
3.如权利要求2的听觉传输系统,其特征在于,所述电的放大器(3)的至少一个电子控制元件和所述用于人体神经的经皮刺激的设备(6)的至少一个电子控制元件被构造为公共电子模块。
4.如权利要求3的听觉传输系统,其特征在于,所述公共电子模块包括公共电子芯片,特别是电子印刷电路板。
5.如权利要求1的听觉传输系统,其特征在于,所述用于人体神经的经皮刺激的设备(6)具有其自己的被连接到所述听觉传输系统(1)的壳体(2)的壳体(9)。
6.如权利要求5的听觉传输系统,其特征在于,所述用于人体神经的经皮刺激的设备(6)的壳体(9)和所述听觉传输系统(1)的壳体(2)之间的连接被设计为是可拆卸的。
7.如权利要求6的听觉传输系统,其特征在于,所述连接被构造为夹箍连接(10)。
8.如权利要求6或7的听觉传输系统,其特征在于,在所述用于人体神经的经皮刺激的设备(6)的壳体(9)上以及在所述听觉传输系统(1)的壳体(2)上提供相互作用的电耦接元件(11)。
9.如权利要求1到8中任一项的听觉传输系统,其特征在于,所述听觉传输系统还包括麦克风(12),并且被构造为助听器。
10.如权利要求1到8中任一项的听觉传输系统,其特征在于,所述听觉传输系统被构造为耳鸣掩蔽器。
11.如权利要求1到10中任一项的听觉传输系统,其特征在于,被设计为被插入耳道中的弓形延伸部分(13)在所述用于声学信号的输出通道(5)的区域中被耦接或可以被耦接,其中所述弓形延伸部分(13)与耳道的入口或外耳道的形状匹配,并且在所述弓形延伸部分(13)的端部处设置具有用于所述两个电极(7、8)的两个触点(15、16)的电极头(14)。
12.如权利要求11的听觉传输系统,其特征在于,所述弓形延伸部分(13)被构造为管,并且具有用于输出声学信号的开口(17)。
13.如权利要求12的听觉传输系统,其特征在于,所述开口(17)被设置在所述电极头(14)上或所述电极头(14)中。
14.如权利要求11到13中任一项的听觉传输系统,其特征在于,所述电极头(14)被设计为并且适于刺激外耳道和/或耳廓区域中的迷走神经。
15.如权利要求11到14中任一项的听觉传输系统,其特征在于,所述电极头(14)由软材料、特别是永久性软硅树脂制成。
16.如权利要求11到15中任一项的听觉传输系统,其特征在于,所述触点(15,16)由金属球形成。
17.如权利要求11到15中任一项的听觉传输系统,其特征在于,所述触点(15,16)由平坦的表面电极形成。
18.如权利要求11到15中任一项的听觉传输系统,其特征在于,所述触点(15,16)通过由具有电气表面传导性的材料制成的元件、特别是由具有石墨插入物的海绵制成的元件形成。
19.如权利要求1到18中任一项的听觉传输系统,其特征在于,所述听觉传输系统还包括用于测量使用所述听觉传输系统的人的生理学参数的至少一个传感器(18)。
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