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A conductive-light-conducting cochlear implant electrode and its preparation method

A cochlear implant and electrode technology, which is applied in the field of medical optics, can solve the problems of limited flexibility, complicated process, and inability to coat the surface of optical fibers, and achieve the effects of simple process, biocompatibility of insulation, and improved speech recognition quality.

Inactive Publication Date: 2015-10-07
FUYANG NORMAL UNIVERSITY
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Problems solved by technology

This method is also unable to coat the surface of longer optical fibers, and the optical fiber coating machine used needs to be used under vacuum, the process is complicated, and the flexibility of the operation in the preparation process is greatly limited.

Method used

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  • A conductive-light-conducting cochlear implant electrode and its preparation method
  • A conductive-light-conducting cochlear implant electrode and its preparation method
  • A conductive-light-conducting cochlear implant electrode and its preparation method

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Embodiment Construction

[0029] Figure 1-2 The central portion of the multi-channel conductive and light-guiding cochlear electrode optical fiber 1 shown in is provided with four or more groups of energized electrodes 2, 3, 4, 5 with the function of conductive and light-guided, and an inner insulating layer is arranged on the outer side of the energized electrodes. An outer protective layer is provided on the outer side of the insulating layer. The length of each electrode is set according to the needs of cochlear implantation. The current and laser are respectively connected to the corresponding electrodes by the coupler. The number of electrodes is increased according to the need, and the length of each electrode is prepared according to the actual needs. The preparation method of the multi-channel conductive and light-conducting cochlear electrode is to arrange a plurality of conductive and light-conducting cochlear electrodes obtained according to claim 1 according to a certain rule according to ...

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Abstract

The invention discloses a current-conducting and light-guiding artificial cochlea electrode and a manufacturing method thereof. An optical fiber and nano-metal particles are taken as main materials; the nano-metal particles are coated on the surface of a fiber cladding by using an optical fiber metal coating device; a current-conducting metal coating is made on the fiber cladding by using a sintering technology to obtain a novel current-conductive and light-guiding artificial cochlea electrode. The novel current-conducting and light-guiding artificial cochlea electrode can be used for conducting current and guiding light, and has the advantages of an electrical cochlea and an optical cochlea; convenience is brought to research and clinical application, and an implant user can be assisted in improving the voice recognition quality; the current-conducting and light-guiding artificial cochlea electrode has great application prospects in the basic research and clinical application of artificial auditory sense. The method for manufacturing a current-conducting optical fiber by sintering nano-metal gold paste, nano-metal silver paste and nano-metal copper paste is simple in process, is free from pollution, is reliable in performance, and is suitable for manufacturing current-conducting optical fibers of various lengths.

Description

technical field [0001] The invention relates to a conductive and light-guiding cochlear artificial electrode and its preparation technology, belonging to the field of medical optics. Background technique [0002] A cochlear implant is an electronic device that helps deaf patients recover their hearing. It uses specific pulse currents from cochlear electrodes to stimulate the auditory nerves in the cochlea to help cochlear implanters produce hearing. Cochlear implant electrodes currently used clinically are all made of highly conductive metal platinum or platinum. Although they have excellent conductivity, they cannot guide light. Due to the influence of the current diffusion effect, the frequency selectivity of the current-triggered cochlear implant is low, and the current diffusion will cause mutual interference between the two electrodes and cause signal distortion. [0003] Studies have shown that using laser pulses to trigger the auditory nerve in the cochlea can produc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61F11/04A61F2/18
Inventor 张开银李世刚侯雪松王秋玲武山赵书涛黄银生吴言宁刘广东
Owner FUYANG NORMAL UNIVERSITY
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