CN115119126A - Artificial artificial ear with bone conduction hearing aid function and preparation method thereof - Google Patents

Artificial artificial ear with bone conduction hearing aid function and preparation method thereof Download PDF

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Publication number
CN115119126A
CN115119126A CN202210710808.3A CN202210710808A CN115119126A CN 115119126 A CN115119126 A CN 115119126A CN 202210710808 A CN202210710808 A CN 202210710808A CN 115119126 A CN115119126 A CN 115119126A
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CN
China
Prior art keywords
artificial ear
artificial
ear
bone conduction
implant
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Pending
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CN202210710808.3A
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Chinese (zh)
Inventor
冯宁宇
汤少杰
张莹
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General Hospital of Ningxia Medical University
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General Hospital of Ningxia Medical University
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Publication of CN115119126A publication Critical patent/CN115119126A/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R25/00—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception
    • H04R25/65—Housing parts, e.g. shells, tips or moulds, or their manufacture
    • H04R25/658—Manufacture of housing parts
    • H04R25/659—Post-processing of hybrid ear moulds for customisation, e.g. in-situ curing
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/50—Prostheses not implantable in the body
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/50—Prostheses not implantable in the body
    • A61F2/5044—Designing or manufacturing processes
    • A61F2/5046—Designing or manufacturing processes for designing or making customized prostheses, e.g. using templates, finite-element analysis or CAD-CAM techniques
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R25/00—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception
    • H04R25/60—Mounting or interconnection of hearing aid parts, e.g. inside tips, housings or to ossicles
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R25/00—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception
    • H04R25/60—Mounting or interconnection of hearing aid parts, e.g. inside tips, housings or to ossicles
    • H04R25/604—Mounting or interconnection of hearing aid parts, e.g. inside tips, housings or to ossicles of acoustic or vibrational transducers
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/50—Prostheses not implantable in the body
    • A61F2/5044—Designing or manufacturing processes
    • A61F2/5046—Designing or manufacturing processes for designing or making customized prostheses, e.g. using templates, finite-element analysis or CAD-CAM techniques
    • A61F2002/5053—Designing or manufacturing processes for designing or making customized prostheses, e.g. using templates, finite-element analysis or CAD-CAM techniques using a positive or a negative model, e.g. casting model or mould
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2460/00—Details of hearing devices, i.e. of ear- or headphones covered by H04R1/10 or H04R5/033 but not provided for in any of their subgroups, or of hearing aids covered by H04R25/00 but not provided for in any of its subgroups
    • H04R2460/13—Hearing devices using bone conduction transducers

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  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • General Health & Medical Sciences (AREA)
  • Neurosurgery (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Manufacturing & Machinery (AREA)
  • Transplantation (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Cardiology (AREA)
  • Prostheses (AREA)

Abstract

An artificial ear with bone conduction hearing aid function and its preparing process, wherein the main structure of the artificial ear is made of silicon rubber, and the combined planting part of the artificial ear is a magnetic implant which is adsorbed on the surface of the skull by multiple independent magnetic units. The hearing conduction device of the artificial ear uses a bone bridge device that includes a hearing processor and a bone conduction implant. The artificial ear is manufactured by adopting a die-turning technology and using a high-resolution 3D printer to obtain an artificial ear male die made of resin materials, and the part with poor local detail performance of the male die is corrected manually after the male die is subjected to photocuring. When the artificial ear is worn by a patient, the auditory processor can convert the sound in the environment into an electric signal and transmit the electric signal to the bone conduction implant which is implanted on the surface of the skull in advance through wireless transmission. The artificial ear designed by the invention has the advantages of small volume of the sound processor, simple structure, reduced weight of the artificial ear, improved wearing comfort level and high simulation degree.

Description

Artificial artificial ear with bone conduction hearing aid function and preparation method thereof
Technical Field
The invention belongs to the field of medical devices, and particularly relates to a high-simulation artificial ear with a bone conduction hearing aid function and a preparation method thereof.
Background
Severe congenital auricular deformity is usually accompanied by external auditory canal occlusion and hearing impairment, a high-simulation artificial ear is currently used for treating patients with severe auricular deformity or traumatic auricular defect, the research and development of the artificial ear well solves the problem of the appearance of the ear, but no artificial ear can well solve the trouble of hearing impairment of the patients. There has been chinese patent (CN 213372755U) which discloses a high simulation artificial ear with hearing function, the high simulation artificial ear related to the utility model is internally provided with a flexible circuit board and a bone conduction mechanism, the bone conduction mechanism comprises a bone vibrator and a vibrating diaphragm, is a vibration sound producing device, and transmits the generated vibration to the inner ear by hard connection with the skull. But the sound generated by the vibrating device in the artificial ear can be perceived by other people except the patient in the quiet environment, thereby reducing the simulation degree of the artificial ear. Secondly, there is some energy attenuation before the vibrating device inside the artificial ear transmits sound to the inner ear.
Disclosure of Invention
The invention aims to provide a simulated artificial ear with a bone conduction hearing aid function and a preparation method thereof, aiming at the defects of the existing artificial ear with a hearing function, and the simulated artificial ear with the bone conduction hearing aid function can improve the simulation degree of the artificial ear, simplify the internal structure of the artificial ear and reduce the maintenance cost.
In order to achieve the purpose, the invention provides the following technical scheme: a main body structure of the artificial ear is silicon rubber, and the artificial ear with higher simulation degree is obtained by applying a 3D printing technology and is close to a real ear in color, texture and local details. The combined planting part of the artificial ear is a magnetic implant which is absorbed on the surface of the pre-embedded skull in a matching way by a plurality of independent magnetic suction units. The hearing conduction device of the artificial ear uses a bone bridge device that includes a hearing processor and a bone conduction implant. Wherein the artificial ear main body reserves an installation hole site for the auditory processor of the bone bridge. When the artificial ear is worn by a patient, the auditory processor can convert the sound in the environment into an electric signal and transmit the electric signal to the bone conduction implant implanted on the surface of the skull in advance in a wireless transmission mode, and the bone vibrator of the bone conduction implant transmits the sound to the inner ear so as to be sensed.
The preparation method of the artificial ear comprises the following steps: the fabrication of the artificial ear adopts the mold overturning technology and comprises the following steps: 1. the STL model of the invention is obtained by the STL mirror image processing of the opposite healthy ear. If both ears of the patient are damaged, a more desirable STL model of the patient in the database may be used. 2. And (3) obtaining an artificial ear male die of the resin material by using a high-resolution 3D printer, wherein the male die is subjected to photocuring, and the part with poor local detail performance is corrected manually. 3. Before the resin male die of the artificial ear is deformed, liquid gypsum is used for segmental perfusion and then is kept stand and solidified to obtain a gypsum female die of the artificial ear. 4. And (3) pouring liquid silica gel into a gypsum negative mould of the artificial ear, and curing under a specific mature process condition to obtain the high-simulation artificial ear.
The artificial ear is fixed by a plurality of (2-3) independent magnetic attraction units to match and fix with the bone conduction implant in the implantation area. Three hole sites are reserved on the inner side surface of the artificial ear and used for placing a coupling magnetic unit matched with the skull bone conduction implant. The magnetic attraction force of each magnetic attraction unit can be adjusted according to the wearing condition of a patient, and the magnetic attraction units with different magnetic force sizes are replaced to realize the magnetic attraction.
The invention has the following remarkable effects:
the artificial ear designed by the invention has the advantages of small volume and simple structure of the sound processor, reduces the weight of the artificial ear and improves the wearing comfort level, in addition, the artificial ear is not used as a sound wave vibration generating device, can not generate the bad stimulation conditions to a wearer such as abnormal sound amplifying and howling, has no energy attenuation, and improves the simulation degree of the artificial ear.
Drawings
FIG. 1 is a schematic view of the structure and shape of the invention fixed to the implanted area of the skull.
FIG. 2 is a schematic view of the magnetic preset and auditory processor positions at the skull implant site.
Fig. 3 is a schematic diagram of the position of the artificial ear with the magnetic unit and the auditory processor according to the present invention.
Fig. 4 is a schematic view of the structure of the gap for installing the auditory processor in the invention by replacing the magnetic unit.
FIG. 5 is a schematic view of the structure and shape of the magnetic unit of the present invention.
In fig. 1-5: 1-skull implantation area, 2-artificial ear, 3-magnetic attraction unit, 4-reserved hole site of fixed artificial ear, 5-replacement of magnetic attraction unit installation gap, 6-auditory processor, 7-bone conduction implant, and 8-replacement of auditory processor installation gap.
Detailed Description
The embodiments of the present invention will be described with reference to the accompanying drawings.
As shown in fig. 1-5, an artificial ear with bone conduction hearing aid function and a preparation method thereof, the artificial ear is made of silica gel, and the STL artificial ear model is obtained by performing STL mirror image processing on a contralateral healthy ear.
The combined planting part of the artificial ear is a skull implanting area 1 which is formed by matching and adsorbing a plurality of independent magnetic suction units 3 on the surface of a pre-embedded skull. The hearing conduction device of the artificial ear, which uses a bone bridge device of Med-el corporation that includes a hearing processor 6 and a bone conduction implant 7. Wherein the artificial ear main body reserves a fixed artificial ear reserved hole position 4 for an auditory processor of the bone bridge. The artificial ear 2 is fixed by 3 independent magnetic units and matched and fixed with the bone conduction implant 7 of the skull implant area 1. Three fixing artificial ear reserved hole positions 4 are reserved on the inner side surface of the artificial ear and used for placing a magnetic attraction unit matched with the bone conduction implant. The magnetic attraction force of each magnetic attraction unit 3 can be adjusted according to the wearing condition of a patient and is realized by replacing the magnetic attraction units with different magnetic force sizes. The specific replacement is completed by replacing the magnetic unit mounting gap 5 on the artificial ear.
The implementation of the artificial ear will be described in the aspects of STL modeling, 3D printing, and copying to make a high-simulation artificial ear.
The artificial ear is manufactured by adopting a die-turning technology, and the specific implementation steps are as follows: 1. the STL model of the invention is obtained by the STL mirror image processing of the opposite healthy ear. If both ears of the patient are damaged, a more desirable STL model of the patient in the database may be used. 2. And (3) obtaining an artificial ear male die of the resin material by using a high-resolution 3D (resolution 0.02mm-0.1 mm) printer, wherein the male die is subjected to photocuring, and the part with poor local detail performance is corrected manually. 3. Before the resin male die of the artificial ear is deformed, liquid gypsum is used for segmental perfusion and then standing and solidifying to obtain a gypsum female die of the artificial ear. 4. And (3) pouring liquid silica gel into a gypsum negative mould of the artificial ear, and curing under a specific mature process condition to obtain the high-simulation artificial ear.
The invention discloses the placement and adjustment of the independent magnetic attraction units. The inner side surface of the artificial ear is reserved with 3 hole sites with the diameter of about 8mm, the hole sites are matched with the position of the magnetic implant of the skull, and the magnetic blocks are respectively plugged into the reserved hole sites, so that the artificial ear can be matched and adsorbed with the magnetic implant of the skull. In the use process, the magnetic block of corresponding magnetic attraction can be selected according to the wearing comfort level and the fixing effect, so that the adjustment of the magnetic attraction is completed, and the wearing comfort level is improved.
It is to be understood that the above-described embodiments are only a part, and not all, of the present invention. Other embodiments, which can be obtained by persons skilled in the art based on the claims of the present invention without any inventive work, belong to the protection scope of the present invention.

Claims (5)

1. The utility model provides an artificial ear with bone conduction hearing aid function, its characterized in that, this artificial ear's combination is planted partly for a plurality of independent magnetism and is inhaled unit (3) matching and adsorb in pre-buried skull implantation area (1) of implanting the skull surface, and this artificial ear's sense of hearing conduction device uses the bone bridge device, and this bone bridge device includes sense of hearing treater (6) and bone conduction implant (7), and wherein the artificial ear main part has reserved fixed artificial ear reservation hole site (4) for sense of hearing treater (6).
2. The artificial ear with bone conduction hearing aid function according to claim 1, characterized in that the fixation of the artificial ear (2) is completed by (3) independent magnetic attraction units to match and fix with the bone conduction implant (7) of the skull implant area (1).
3. The method for preparing the artificial ear fixed by magnetic attraction according to claims 1 and 2, characterized in that the artificial ear is manufactured by a mold-turning technique, the STL model is printed out by using a high-resolution 3D printer to obtain a male mold of the equal-proportion artificial ear made of resin material, the male mold is subjected to light curing, the part with poor local detail performance is manually corrected, liquid gypsum is used for segmental perfusion and standing curing before the resin male mold of the artificial ear deforms, a female plaster mold of the artificial ear is obtained, finally liquid silica gel is used for toning and perfusing into the female plaster mold of the artificial ear, and curing is performed under specific mature process conditions to obtain the high-simulation artificial ear.
4. The artificial ear fixed by magnetic attraction according to claim 1, wherein 3 holes with a diameter of about 8mm are reserved on the inner side of the artificial ear, the holes are matched with the magnetic implant of the skull, and the magnetic blocks are respectively plugged into the reserved holes, so that the artificial ear can be matched and adsorbed with the magnetic implant of the skull.
5. The magnetic attraction fixed artificial ear according to claim 1 or 2, characterized in that the artificial ear is provided with a mounting gap (5) for replacing the magnetic attraction unit (3) and a mounting gap (8) for replacing the auditory processor (6).
CN202210710808.3A 2021-12-15 2022-06-22 Artificial artificial ear with bone conduction hearing aid function and preparation method thereof Pending CN115119126A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN2021232121984 2021-12-15
CN202123212198 2021-12-15

Publications (1)

Publication Number Publication Date
CN115119126A true CN115119126A (en) 2022-09-27

Family

ID=83327876

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210710808.3A Pending CN115119126A (en) 2021-12-15 2022-06-22 Artificial artificial ear with bone conduction hearing aid function and preparation method thereof

Country Status (1)

Country Link
CN (1) CN115119126A (en)

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