Artificial cochlea cranked electrode and implanting method thereof

A technology of cochlear implants and curved electrodes, used in ear therapy, medical science, prosthesis, etc., can solve the problems of damage to the insulating coating, failure of insertion, easy bending of the supporting steel core, etc., to improve the resolution ability and long service life. , good reliability

Active Publication Date: 2015-05-20
EYE & ENT HOSPITAL SHANGHAI MEDICAL SCHOOL FUDAN UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the cylindrical hole to be inserted into the supporting steel core is relatively long and very thin, and most of the operation process is in a state where the visual effect is not very good. Bending lea...

Method used

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  • Artificial cochlea cranked electrode and implanting method thereof
  • Artificial cochlea cranked electrode and implanting method thereof
  • Artificial cochlea cranked electrode and implanting method thereof

Examples

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Embodiment 1

[0040] Such as Figure 1 to Figure 3 As shown, a curved cochlear implant electrode includes an electrode array composed of an electrode sheet 110 and an electrode wire 120. The electrode array is bent into a cochlear shape and then encapsulated by silicone colloid to form a curved electrode array body. 100.

[0041] The curved electrode array body 100 is covered with a guide hose 200 , and the guide hose 200 straightens the curved electrode array body 100 .

[0042] The guide hose 200 includes a guide hose body and a bell mouth 210 at the tail end of the guide hose body, and the bell mouth 210 is located outside the curved electrode array body 100 . The guiding hose 200 has a tearable structure running through its two ends.

[0043] The tearable structure of the first embodiment includes two notches 211 uniformly arranged along the circumference on the side wall of the bell mouth 210, and two notches 211 along the axis of the guide hose body on the side wall of the guide hose ...

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PUM

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Abstract

The invention provides an artificial cochlea cranked electrode. The artificial cochlea cranked electrode comprises an electrode array link, and the electrode array link is bent into a cochlea shape and then is packed into a cranked electrode array link body through a colloidal silica body. The cranked electrode array link body is provided with a guide hose enabling the cranked electrode array link body to be straight, a horn mouth is formed in the tail end of the guide hose, and the guide hose is provided with a tearable structure penetrating through the head end and the tail end of the guide hose. The invention further provides an implanting method of the artificial cochlea cranked electrode. The implanting method comprises the steps that the horn mouth in the tail end of the guide hose of the artificial cochlea cranked electrode abuts against a windowing hole of the temporal bone of the human body, the artificial cochlea cranked electrode is slowly pushed into the temporal bone through the windowing hole of the temporal bone, the guide hose is made to gradually crack from the tearable structure, and the cranked electrode array link body is made to gradually recover the bent state and is matched with the human body cochlea completely; the cracked guide hose is taken out of the earhole, and then the cranked artificial cochlea is implanted. The artificial cochlea cranked electrode is simple in structure, convenient to implant, safe, reliable, high in language distinguishing ability, small in power consumption and long in service life.

Description

technical field [0001] The invention relates to an artificial organ and a medical electronic device thereof, in particular to an artificial cochlear curved electrode and an implantation method thereof. Background technique [0002] The human ear can be divided into three parts: the outer ear, the middle ear and the inner ear. The main function of the outer ear and the middle ear is to conduct external sound to the inner ear through the tympanic membrane and the three auditory ossicles connected to the tympanic membrane. The inner ear is about the size of a soybean, shaped like a snail shell, also known as the cochlea. There are tens of thousands of auditory receptor cells in the cochlea, namely hair cells. The hair cells convert the sound energy transmitted from the middle ear into electrochemical energy, causing the excitation of the auditory nerve. The excitation of the auditory nerve transmits the sound information to the cerebral cortex in the form of electricity to pro...

Claims

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Application Information

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IPC IPC(8): A61F2/18A61F11/04
Inventor 王正敏王澄许车明
Owner EYE & ENT HOSPITAL SHANGHAI MEDICAL SCHOOL FUDAN UNIV
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