WO2023035648A1 - 人工耳蜗 - Google Patents

人工耳蜗 Download PDF

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Publication number
WO2023035648A1
WO2023035648A1 PCT/CN2022/092752 CN2022092752W WO2023035648A1 WO 2023035648 A1 WO2023035648 A1 WO 2023035648A1 CN 2022092752 W CN2022092752 W CN 2022092752W WO 2023035648 A1 WO2023035648 A1 WO 2023035648A1
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WIPO (PCT)
Prior art keywords
optical signal
cochlear implant
light source
array
implant according
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PCT/CN2022/092752
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English (en)
French (fr)
Inventor
王�华
吴勇
王昊
郑浩
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微创投资控股有限公司
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Publication of WO2023035648A1 publication Critical patent/WO2023035648A1/zh

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N1/00—Electrotherapy; Circuits therefor
    • A61N1/02—Details
    • A61N1/04—Electrodes
    • A61N1/05—Electrodes for implantation or insertion into the body, e.g. heart electrode
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N1/00—Electrotherapy; Circuits therefor
    • A61N1/18—Applying electric currents by contact electrodes
    • A61N1/32—Applying electric currents by contact electrodes alternating or intermittent currents
    • A61N1/36—Applying electric currents by contact electrodes alternating or intermittent currents for stimulation
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N5/00—Radiation therapy
    • A61N5/06—Radiation therapy using light

Definitions

  • the present application relates to the technical field of medical devices, in particular to cochlear implants.
  • a cochlear implant is an electronic device that converts sound into an electrical signal in a certain coded form by an external speech processor, and stimulates the auditory nerve through an implanted electrode system to restore or rebuild the auditory function of the deaf.
  • the cochlear implant has been used as a Conventional methods for the treatment of severe to total deafness.
  • the electrical stimulation and light stimulation drivers of traditional cochlear implants are embedded in the human body, and the energy and stimulation information are transmitted through wireless power supply and wireless communication through the coil.
  • Traditional cochlear implants have complex internal components, strict requirements on the waterproof packaging of drivers embedded in the human body and built-in chips, and difficult packaging processes. It is difficult to continue working in the body for decades, and the drivers implanted in the body cannot be upgraded.
  • the purpose of the present invention is to provide a cochlear implant.
  • the light source driver is placed outside the body to avoid contact with the tissue fluid in the body, thereby improving the long-term working stability of the device.
  • the technical solution adopted by the present invention is to provide a cochlear implant, including an external device and an internal device, the external device includes an electrically connected optical signal transmitter and a driver, and the driver is used to control the optical signal.
  • the transmitter emits an optical signal;
  • the device in the body includes an electrically connected optical signal receiver and a stimulating array, the optical signal receiver is used to receive the optical signal emitted by the optical signal transmitter, and drive the stimulating array to stimulate auditory nerve.
  • the optical signal transmitter includes a light source array, the light source array is arranged on a first circuit board, and the driver is connected to the first circuit board through a first wire.
  • the light source array is composed of a plurality of near-infrared LED light sources with a wavelength of 800 nm.
  • the driver has a built-in stimulation program, or the driver communicates with an external electronic device to obtain a stimulation program; the stimulation program converts external sound signals into switching signals for the light source array.
  • the optical signal receiver includes a photovoltaic cell array, and the photovoltaic cell array is arranged on the second circuit board.
  • the photovoltaic cell array is composed of multiple groups of photovoltaic cells, and the photovoltaic cells are silicon solar cells, multi-element compound thin film solar cells, polymer multilayer modified electrode solar cells, nanocrystalline solar cells or organic solar cells.
  • the stimulation array is composed of a plurality of stimulation units, and the two poles of the photovoltaic cells are connected to the corresponding stimulation units through capacitors and second wires.
  • the stimulating unit is a stimulating electrode or a stimulating light source.
  • the emitted light of the stimulating light source is blue light with a wavelength of 450nm.
  • the in vitro device is provided with a first magnet
  • the in vivo device is provided with a second magnet
  • the first magnet and the second magnet are mutually adsorbed and fixed, the light source in the light source array and the photovoltaic cell
  • the physical locations of the photovoltaic cells in the array correspond one-to-one.
  • the first magnet and the light source array are separately arranged on two sides of the first circuit board, and the second magnet and the photovoltaic cell array are separately arranged on two sides of the second circuit board.
  • the present invention has the following beneficial effects: in the cochlear implant provided by the present invention, the light source driver is placed outside the body, and the internal device only includes the optical signal receiver and the stimulation array, which reduces the influence of body fluids on the precise structure and greatly improves The stability of the device in the body, thereby improving the service life of the cochlear implant in the patient. Moreover, the driver is placed outside the body, which is convenient for continuous upgrading of the driver, and can continuously improve product performance and therapeutic effect.
  • the cochlear implant provided by the invention has a simpler structure while maintaining the original functions, reduces the production cost, and simplifies the production process.
  • Fig. 1a is a schematic diagram of the main structure of the cochlear implant provided by the embodiment of the present invention, and Fig. 1b is a schematic side view of Fig. 1a;
  • Fig. 2 is a schematic diagram of the working principle of a single light source and a single photovoltaic cell in an embodiment of the present invention
  • Fig. 3 is a schematic diagram of a cochlear implant provided by an embodiment of the present invention after it is implanted into a human body.
  • 1-in vitro device 2-in vivo device, 10-optical signal transmitter, 11-first circuit board, 12-first magnet, 13-first wire, 14-driver, 20-optical signal receiver, 21-the first Two circuit boards, 22-second magnet, 23-second wire, 24-stimulation array, 30-auditory nerve, 100-light source, 200-photovoltaic cell, 201-capacitor, 241-current, 240-stimulation unit.
  • first and second are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features.
  • the features defined as “first” and “second” may explicitly or implicitly include at least one of these features.
  • “plurality” means at least two, such as two, three, etc., unless otherwise specifically defined.
  • a first feature being "on” or “under” a second feature may mean that the first and second features are in direct contact, or that the first and second features are indirect through an intermediary. touch.
  • “above”, “above” and “above” the first feature on the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature.
  • “Below”, “beneath” and “beneath” the first feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is less horizontally than the second feature.
  • the cochlear implant provided in this embodiment includes an external device 1 and an internal device 2.
  • the external device 1 includes an electrically connected optical signal transmitter 10 and a driver 14.
  • the driver 14 is used to control the optical signal transmitter 10 to emit an optical signal;
  • the in vivo device 2 includes an electrically connected optical signal receiver 20 and a stimulation array 24, and the optical signal receiver 20 is used to receive the optical signal
  • the light signal emitted by the transmitter 10 drives the stimulation array 24 to stimulate the auditory nerve 30 .
  • the optical signal transmitter 10 includes a light source array, the light source array is composed of a plurality of light sources 100 arranged vertically and horizontally, the light source array is arranged on the first circuit board 11, and the driver 14 passes through the first A wire 13 is connected with the first circuit board 11, and the light source 100 is preferably an LED, which can emit light of a specific wavelength, such as near-infrared light with a wavelength of 800nm.
  • the driver 14 has a built-in lithium battery as a power supply, and the driver 14 can be built in
  • the stimulation program can also communicate with external electronic equipment through Bluetooth, WIFI, etc.
  • the electronic equipment can be a sound collection and computing device;
  • the stimulation program converts external sound signals into the optical signal transmitter 10,
  • the driver 14 can activate the light source 100 at a specified time according to the stimulation program according to the switch signal of the light source array mentioned above.
  • the light emitted by the light source 100 located outside the body has energy.
  • These energy and stimulation information can be transmitted to the optical signal receiver 20 in the body by utilizing the characteristic of light penetrating the skin.
  • the optical signal receiver 20 includes a photovoltaic cell array, the photovoltaic cell array is composed of a plurality of groups of photovoltaic cells 200 arranged vertically and horizontally, and the photovoltaic cell array is arranged on the second circuit board 21, and the photovoltaic cell 200 can be silicon solar energy batteries, multi-component compound thin film solar cells, polymer multilayer modified electrode solar cells, nanocrystalline solar cells or organic solar cells, etc.
  • the stimulation array 24 is composed of a plurality of stimulation units 240 , please refer to FIG. 2 , the two poles of each photovoltaic cell 200 are connected to the corresponding stimulation unit 240 through a capacitor 201 and a second wire 23 .
  • the photovoltaic cell 200 After the light source 100 emits a light signal, the photovoltaic cell 200 generates a potential difference at its two poles after receiving energy input in a specific time and space. After the potential difference is filtered and modulated by the capacitor 201, it passes through the second wire 23 drives the stimulation unit 240 to stimulate the auditory nerve 30 .
  • the stimulating unit 240 can be a stimulating electrode, and the stimulating unit generates a current 241 to electrically stimulate the auditory nerve 30; the stimulating unit 240 can also be a stimulating light source, such as the optical stimulation of the auditory nerve 30 can be carried out by 450nm blue light, so
  • the stimulating light source may be a micro-LED with dimensions of 500 microns long, 500 microns wide, and 300 microns high.
  • the first magnet 12 is set in the external device 1, and the second magnet 22 is set in the internal device 2.
  • the internal device 2 is implanted subcutaneously, and the first magnet 12 and the second The magnets 22 are attracted to each other to fix the in vitro device 1 and the in vivo device 2 , and the physical positions of the light sources 100 in the light source array correspond to the photovoltaic cells 200 in the photovoltaic cell array.
  • the first magnet 12 and the light source array are separately arranged on both sides of the first circuit board 11, and the second magnet 22 and the photovoltaic cell array are separately arranged on two sides of the second circuit board 21.
  • the light source array and the photovoltaic cell array can be arranged in a larger area, so that the signal transmission is more efficient and accurate.
  • the internal device 2 when in use, the internal device 2 is implanted in the patient's body, the switching mode of the light source array in the optical signal transmitter 10 is driven by the external driver 14, and the driver 14 converts the external sound into the switching signal of the light source array, and the excitation light source 100 emits Optical signal, the optical signal is transmitted to the optical signal receiver 20 through the human skin, after the optical signal receiver 20 located in the body receives the optical signal, it generates electric energy to drive the stimulation array 24, and the auditory nerve 30 receives the electrical stimulation or light emitted by the stimulation array 24 Stimulate the patient to obtain hearing.
  • the light source driver is placed outside the body, and the internal device only includes the optical signal receiver and the stimulation array, which reduces the influence of body fluid on the precise structure, greatly improves the stability of the internal device, and further improves the artificial Lifespan of cochlear implants in patients.
  • the drive is external, which is convenient for the continuous upgrade of the drive, which can continuously improve product performance and treatment effect.
  • the cochlear implant provided by the invention has a simpler structure while maintaining the original functions, reduces the production cost, and simplifies the production process.

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  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Public Health (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Radiology & Medical Imaging (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
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Abstract

本发明公开了一种人工耳蜗，包括体外装置(1)及体内装置(2)，所述体外装置(1)包括电气连接的光信号发射器(10)及驱动器(14)，所述体内装置(2)包括电气连接的光信号接收器(20)及刺激阵列(24)。

Description

人工耳蜗 技术领域
本申请涉及医疗器械技术领域，特别是涉及人工耳蜗。
背景技术
人工耳蜗是一种电子装置，由体外言语处理器将声音转换为一定编码形式的电信号，通过植入体内的电极系统刺激听觉神经来恢复或重建聋人的听觉功能，目前，人工耳蜗已经作为治疗重度聋至全聋的常规方法。传统人工耳蜗的电刺激及光刺激驱动器埋置在人体内，通过线圈开展无线供电及无线通讯的方式传递能量及刺激信息。传统人工耳蜗的体内部件复杂，对人体内埋置的驱动器及内置芯片的防水封装要求严格，封装工艺困难，难以在体内持续工作几十年时间，而且植入体内的驱动器无法升级。
因此，有必要提供一种可长期稳定工作的人工耳蜗。
发明内容
本发明的目的是提供一种人工耳蜗，将光源驱动器设置在体外，避免其与体内组织液接触，提升了设备的长期工作稳定性。
为实现上述目的，本发明采用的技术方案是提供一种人工耳蜗，包括体外装置及体内装置，所述体外装置包括电气连接的光信号发射器及驱动器，所述驱动器用于控制所述光信号发射器发射光信号；所述体内装置包括电气连接的光信号接收器及刺激阵列，所述光信号接收器用于接收所述光信号发射器发射的光信号，并驱动所述刺激阵列，以刺激听觉神经。
一方面，所述光信号发射器包括光源阵列，所述光源阵列设置在第一电 路板上，所述驱动器通过第一导线与所述第一电路板相连。
一方面，所述光源阵列是由多个波长为800nm的近红外LED光源排列组成。
一方面，所述驱动器内置刺激程序，或，所述驱动器与外部电子设备通讯连接，获得刺激程序；所述刺激程序将外界声音信号转变成所述光源阵列的开关信号。
一方面，所述光信号接收器包括光伏电池阵列，所述光伏电池阵列设置在第二电路板上。
一方面，所述光伏电池阵列由多组光伏电池排列组成，所述光伏电池为硅太阳能电池、多元化合物薄膜太阳能电池、聚合物多层修饰电极型太阳能电池、纳米晶太阳能电池或有机太阳能电池。
一方面，所述刺激阵列由多个刺激单元排列组成，所述光伏电池的两极均通过电容、第二导线与对应的刺激单元连接。
一方面，所述刺激单元为刺激电极或刺激光源。
一方面，所述刺激光源的发射光为波长450nm的蓝光。
一方面，所述体外装置中设置第一磁铁，所述体内装置中设置第二磁铁，所述第一磁铁与体第二磁铁相互吸附固定时，所述光源阵列中的光源与所述光伏电池阵列中的光伏电池的物理位置一一对应。
一方面，所述第一磁铁及所述光源阵列分设在所述第一电路板的两侧，所述第二磁铁与所述光伏电池阵列分设在所述第二电路板的两侧。
本发明对比现有技术有如下的有益效果：本发明提供的人工耳蜗，将光源驱动器放置在体外，体内装置仅包含光信号接收器及刺激阵列，降低了体液对精密结构的影响，极大提升体内装置的稳定性，进而提升人工耳蜗植入患者体内后的使用寿命。而且驱动器放置在体外，便于驱动器持续升级，可以不断提升产品性能及治疗效果。本发明提供的人工耳蜗在保持原有功能不减的情况下结构更加简单，降低了生产成本，简化了生产工艺。
附图说明
为了更清楚地说明本申请实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1a为本发明实施例提供的人工耳蜗的主体结构示意图，图1b为图1a的侧视示意图；
图2为本发明实施例中单个光源与单个光伏电池的工作原理示意图；
图3为本发明实施例提供的人工耳蜗使用时植入人体后的示意图。
图中：
1-体外装置，2-体内装置，10-光信号发射器，11-第一电路板，12-第一磁铁，13-第一导线，14-驱动器，20-光信号接收器，21-第二电路板，22-第二磁铁，23-第二导线，24-刺激阵列，30-听觉神经，100-光源，200-光伏电池，201-电容，241-电流，240-刺激单元。
具体实施方式
为使本申请的上述目的、特征和优点能够更加明显易懂，下面结合附图对本申请的具体实施方式做详细的说明。在下面的描述中阐述了很多具体细节以便于充分理解本申请。但是本申请能够以很多不同于在此描述的其它方式来实施，本领域技术人员可以在不违背本申请内涵的情况下做类似改进，因此本申请不受下面公开的具体实施例的限制。
在本申请的描述中，需要理解的是，术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”、“顺时针”、“逆时针”、“轴向”、“径向”、“周向”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本申请和简化描述， 而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请的限制。
此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。在本申请的描述中，“多个”的含义是至少两个，例如两个，三个等，除非另有明确具体的限定。
在本申请中，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”、“固定”等术语应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或成一体；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系，除非另有明确的限定。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本申请中的具体含义。
在本申请中，除非另有明确的规定和限定，第一特征在第二特征“上”或“下”可以是第一和第二特征直接接触，或第一和第二特征通过中间媒介间接接触。而且，第一特征在第二特征“之上”、“上方”和“上面”可是第一特征在第二特征正上方或斜上方，或仅仅表示第一特征水平高度高于第二特征。第一特征在第二特征“之下”、“下方”和“下面”可以是第一特征在第二特征正下方或斜下方，或仅仅表示第一特征水平高度小于第二特征。
需要说明的是，当元件被称为“固定于”或“设置于”另一个元件，它可以直接在另一个元件上或者也可以存在居中的元件。当一个元件被认为是“连接”另一个元件，它可以是直接连接到另一个元件或者可能同时存在居中元件。本文所使用的术语“垂直的”、“水平的”、“上”、“下”、“左”、“右”以及类似的表述只是为了说明的目的，并不表示是唯一的实施方式。
请参见图1a、图1b、图2和图3，本实施例提供的人工耳蜗，包括体外装置1及体内装置2，所述体外装置1包括电气连接的光信号发射器10及驱动器14，所述驱动器14用于控制所述光信号发射器10发射光信号；所述体 内装置2包括电气连接的光信号接收器20及刺激阵列24，所述光信号接收器20用于接收所述光信号发射器10发射的光信号，并驱动所述刺激阵列24，以刺激听觉神经30。
在一具体实施方式中，所述光信号发射器10包括光源阵列，所述光源阵列由多个光源100纵横排列组成，所述光源阵列设置在第一电路板11上，所述驱动器14通过第一导线13与第一电路板11相连，所述光源100优选为LED，可发出特定波长的光，如波长为800nm的近红外光，所述驱动器14内置锂电池作为电源供应，驱动器14可以内置刺激程序，也可以通过蓝牙、WIFI等方式与外部电子设备通讯连接，获得刺激程序，所述电子设备可以为声音采集及计算设备；所述刺激程序将外界声音信号转变成所述光信号发射器10上所述光源阵列的开关信号，驱动器14可根据刺激程序在指定的时间激活光源100，位于体外的光源100发出的光具备能量，光源阵列中不同光源100开关的时空顺序内含刺激信息，这些能量及刺激信息可利用光穿透皮肤的特性传递给体内的光信号接收器20。
所述光信号接收器20包括光伏电池阵列，所述光伏电池阵列由多组光伏电池200纵横排列组成，所述光伏电池阵列设置在第二电路板21上，所述光伏电池200可以为硅太阳能电池、多元化合物薄膜太阳能电池、聚合物多层修饰电极型太阳能电池、纳米晶太阳能电池或有机太阳能电池等。所述刺激阵列24由多个刺激单元240组成，请参见图2，每个光伏电池200的两极均通过电容201、第二导线23与对应的刺激单元240连接。光源100发出光信号后，所述光伏电池200在接受特定时空下的能量输入后在其两极处产生电位差，所述电位差通过所述电容201进行滤波及调制后，通过所述第二导线23驱动所述刺激单元240对听觉神经30进行刺激。所述刺激单元240可以为刺激电极，则刺激单元产生电流241对听觉神经30进行电刺激；所述刺激单元240也可以为刺激光源，如可通过450nm的蓝光对听觉神经30进行光刺激，所述刺激光源可以是尺寸为500微米长、500微米宽、300微米高的微型LED。
在一具体实施方式中，所述体外装置1中设置第一磁铁12，所述体内装置2中设置第二磁铁22，使用时，体内装置2植入皮下，所述第一磁铁12与第二磁铁22相互吸附将体外装置1及体内装置2进行固定，所述光源阵列中的光源100与所述光伏电池阵列中的光伏电池200的物理位置一一对应。进一步地，所述第一磁铁12及所述光源阵列分设在所述第一电路板11的两侧，所述第二磁铁22与所述光伏电池阵列分设在所述第二电路板21的两侧，在保证体外装置1及体内装置2稳定固位的同时，光源阵列及光伏电池阵列能够布局更大的面积，使信号传递更高效精确。
请参见图3，使用时，体内装置2植入患者体内，光信号发射器10中光源阵列的开关模式由体外驱动器14驱动，驱动器14将外界声音转变成光源阵列的开关信号，激发光源100发射光信号，光信号透过人体皮肤传递给光信号接收器20，位于体内的光信号接收器20接收光信号后，产生电能驱动刺激阵列24，听觉神经30接收刺激阵列24发出的电刺激或光刺激，使患者获得听觉。
综上，本发明提供的人工耳蜗，将光源驱动器放置在体外，体内装置仅包含光信号接收器及刺激阵列，降低了体液对精密结构的影响，极大提升体内装置的稳定性，进而提升人工耳蜗植入患者体内后的使用寿命。而且驱动器外置，便于驱动器持续升级，可以不断提升产品性能及治疗效果。本发明提供的人工耳蜗在保持原有功能不减的情况下结构更加简单，降低了生产成本，简化了生产工艺。
以上所述实施例的各技术特征可以进行任意的组合，为使描述简洁，未对上述实施例中的各个技术特征所有可能的组合都进行描述，然而，只要这些技术特征的组合不存在矛盾，都应当认为是本说明书记载的范围。
以上所述实施例仅表达了本申请的几种实施方式，其描述较为具体和详细，但并不能因此而理解为对申请专利范围的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本申请发明构思的前提下，还可以做出若干变形和改进，这些都属于本申请的保护范围。因此，本申请专利的保护 范围应以所附权利要求为准。

Claims (11)

  1. 一种人工耳蜗，其特征在于，包括体外装置及体内装置，
    所述体外装置包括电气连接的光信号发射器及驱动器，所述驱动器用于控制所述光信号发射器发射光信号；
    所述体内装置包括电气连接的光信号接收器及刺激阵列，所述光信号接收器用于接收所述光信号发射器发射的光信号，并驱动所述刺激阵列，以刺激听觉神经。
  2. 根据权利要求1所述的人工耳蜗，其特征在于，所述光信号发射器包括：
    光源阵列，所述光源阵列设置在第一电路板上，所述驱动器通过第一导线与所述第一电路板相连。
  3. 根据权利要求2所述的人工耳蜗，其特征在于，所述光源阵列由多个波长约为800nm的近红外LED光源排列组成。
  4. 根据权利要求2所述的人工耳蜗，其特征在于，所述驱动器内置刺激程序，或，所述驱动器与外部电子设备通讯连接，获得刺激程序；
    所述刺激程序将外界声音信号转变成所述光源阵列的开关信号。
  5. 根据权利要求2所述的人工耳蜗，其特征在于，所述光信号接收器包括光伏电池阵列，所述光伏电池阵列设置在第二电路板上。
  6. 根据权利要求5所述的人工耳蜗，其特征在于，所述光伏电池阵列由多组光伏电池排列组成，所述光伏电池为硅太阳能电池、多元化合物薄膜太阳能电池、聚合物多层修饰电极型太阳能电池、纳米晶太阳能电池或有机太阳能电池。
  7. 根据权利要求6所述的人工耳蜗，其特征在于，所述刺激阵列由多个刺激单元排列组成，所述光伏电池的两极均通过电容、第二导线与对应的刺激单元连接。
  8. 根据权利要求7所述的人工耳蜗，其特征在于，所述刺激单元为刺激电极或刺激光源。
  9. 根据权利要求8所述的人工耳蜗，其特征在于，所述刺激光源的发射光约为波长450nm的蓝光。
  10. 根据权利要求5所述的人工耳蜗，其特征在于，所述体外装置中设置第一磁铁，所述体内装置中设置第二磁铁，所述第一磁铁与体第二磁铁相互吸附固定时，所述光源阵列中的光源与所述光伏电池阵列中的光伏电池的物理位置一一对应。
  11. 根据权利要求10所述的人工耳蜗，其特征在于，所述第一磁铁及所述光源阵列分设在所述第一电路板的两侧，所述第二磁铁与所述光伏电池阵列分设在所述第二电路板的两侧。
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