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Method for manufacturing 3D printing customized hearing aid

A technology of 3D printing and production method, applied in the direction of improving process efficiency, improving energy efficiency, etc., can solve the problems of poor sound insulation effect, allergic reaction, easy falling off, etc., and achieve the effect of convenient installation, clear sound quality and stable sound transmission.

Active Publication Date: 2019-06-07
攀枝花三帝科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The shape of the non-customized hearing aid shell is single, which cannot be well adapted to different human ear shapes, and it is easy to form local pressure and gaps on the ear canal and the concha cavity, so it has the following disadvantages when worn: uncomfortable to wear, easy to fall off, poor sound insulation effect
Traditional customized hearing aid shells are generally handmade. After a series of manual operations such as making ear impressions, waxing ear impressions, taking negative molds, injecting photosensitive resin, curing and molding, and polishing, not only the production time is long, but also the cost is high. High, and because the whole process is done by hand, although the fit to the human ear is better than that of non-customized hearing aids, there are still some errors
Due to the low strength of the photosensitive resin, the shell of the hearing aid should not be too thin. Therefore, for the small deep ear canal hearing aid, there are certain difficulties in the installation of electronic components.
In addition, due to the general biocompatibility of photosensitive resins, long-term wearing can easily cause allergic reactions

Method used

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  • Method for manufacturing 3D printing customized hearing aid
  • Method for manufacturing 3D printing customized hearing aid
  • Method for manufacturing 3D printing customized hearing aid

Examples

Experimental program
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Effect test

Embodiment 1

[0037] The hearing aid includes a shell, a cover, and components connected to the shell and the cover. The shell fits the inner cavity of the ear canal of the hearing-impaired person. First, the shell is made, and the medical image data of the hearing-impaired person is reconstructed in three dimensions to obtain a three-dimensional image of the ear canal. Data, and then use 3D software to design and optimize the hearing aid shell according to the reconstructed 3D data. After designing the model, use a 3D metal printer to print it. After the printing is completed, carry out post-processing work. test.

[0038] like figure 1 As shown, the manufacturing steps of the shell are as follows:

[0039] Step 1: Place the ear barrier 1-2mm behind the second bend of the ear canal;

[0040] Step 2: Inject the ear impression paste into the ear canal with a syringe;

[0041] Step 3: Wait for the ear impression paste to harden and take it out;

[0042] Step 4: Use a medical 3D scanner to...

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Abstract

The invention discloses a method for manufacturing a 3D printing customized hearing aid. Firstly, a shell is manufactured, before manufacturing, an ear printing mold is obtained by using the shape ofan inner cavity of the auditory meatus of a hearing-impaired person, the ear printing mold is scanned into a computer for graphic processing, a 3D metal printer is used for printing the shell which isthe same with the appearance of the ear printing mold and is internally provided with a containing cavity, post-processing work is done after printing is completed, hearing aid components are assembled after post-processing is completed, and the performance of the hearing aid is tested after assembling is completed. According to the 3D printed customized hearing aid, the shell is made of titaniummetal or a titanium alloy, the thin wall is achieved, space is saved, the shell with the complicated structure can be achieved according to different setting parameters, the 3D printing customized hearing aid meets the requirement of the ergonomics, a person can wear the 3D printing customized hearing aid comfortably, and installation of hearing aid equipment is facilitated.

Description

technical field [0001] The invention belongs to the technical field of manufacturing hearing aids by using 3D printing technology, and in particular relates to a 3D printing customized hearing aid. Background technique [0002] The essence of a hearing aid is an amplifier, which amplifies the sound in a certain way, so that the hearing impaired can effectively use their residual hearing in a certain way. Hearing aids are mainly composed of microphones, amplifiers, receivers, power supplies and housings. According to the different shell production methods, it can be divided into non-customized hearing aids and customized hearing aids. The shape of the non-customized hearing aid shell is single, which cannot be well adapted to different human ear shapes, and it is easy to form local pressure and gaps on the ear canal and the concha cavity, so it has the following disadvantages when worn: uncomfortable to wear, easy to fall off, poor sound insulation effect . Traditional cus...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F3/105
CPCY02P10/25
Inventor 张建鹏王宁李佳宾宗贵升
Owner 攀枝花三帝科技有限公司
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