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Fabrication method of electrode array

An electrode array and manufacturing method technology, applied in the field of electrode array manufacturing, can solve the problems of residual auditory nerve stimulation effectiveness, cochlear fine structure auditory nerve damage, etc., so as to improve biological safety, reduce electric field interference, and improve effectiveness Effect

Inactive Publication Date: 2017-01-11
INST OF ACOUSTICS CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to address the defects of the prior art and provide a method for manufacturing an electrode array to solve the problem of damage to the fine structure of the cochlea and the residual auditory nerve, as well as the problem of the effectiveness of the residual auditory nerve stimulation

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  • Fabrication method of electrode array
  • Fabrication method of electrode array
  • Fabrication method of electrode array

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Embodiment Construction

[0016] The technical solutions of the present invention will be described in further detail below with reference to the accompanying drawings and embodiments.

[0017] The manufacturing method of the electrode array of the present invention provides a safe and effective method for manufacturing the electrode array implanted into the cochlea of ​​a cochlear implant.

[0018] figure 1 It is a flow chart of the method for making the electrode array of the present invention, as shown in the figure, the method includes:

[0019] Step 101, molding of platinum electrode contacts.

[0020] Specifically, using special impact equipment and selecting a special stamping die, the selected platinum sheet is stamped to form a platinum electrode contact piece.

[0021] The electrode contact pieces can have various shapes, one is the electrode contact piece for stimulating the residual auditory nerve, which is oval or circular in shape, and the other is the common electrode for stimulating t...

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Abstract

The invention relates to an electrode array manufacturing method. The method includes the following steps of stamping platinum sheets to form platinum electrode wafers, sizing platinum-iridium alloy wires through a wire winding machine to form platinum-iridium electrode lead wires, welding one end of each platinum-iridium electrode lead wire to the center of the corresponding platinum electrode wafer through the electric resistance welding technology to form an electrode, plating the surfaces of the electrodes with insulating layers through the vacuum coating technology to form electrodes with the insulating surfaces, sequentially loading the multiple electrodes with the insulating surfaces onto an electrode array die with silica-gel carriers, conducting thermal processing on the electrode array die to form a solidified blank piece of an electrode array, and trimming the blank piece to form the electrode array. The electrodes are made of safe and stable materials, and therefore biological safety of the electrode array is improved; the vacuum coating technology is adopted, and therefore interference of electric fields between every two adjacent electrodes is reduced, and effectiveness of stimulation is improved.

Description

technical field [0001] The invention relates to a method for manufacturing an electrode array, in particular to a method for manufacturing an electrode array implanted into the cochlea for a cochlear implant. Background technique [0002] The cochlear implant is the only device that can help patients with severe and severe sensorineural deafness to directly stimulate the residual auditory nerve through electrical signals to restore partial hearing. A cochlear implant is mainly composed of an external speech processor, an internal implant, and an electrode array implanted in the cochlea. The in vitro voice processor receives the external voice signal, converts it into an electrical signal through filtering, extracting the envelope, and nonlinear compression processing, encodes the processed signal and sends it out through ASK modulation, and the receiving stimulator implanted in the body receives the code After the electrical signal is decoded and sent to the electrode array...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61F2/18
Inventor 孟丽訾蕊肖灵
Owner INST OF ACOUSTICS CHINESE ACAD OF SCI
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