CN220046193U - Adjustable artificial auditory ossicles made of carbon composite material - Google Patents
Adjustable artificial auditory ossicles made of carbon composite material Download PDFInfo
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- CN220046193U CN220046193U CN202222986635.6U CN202222986635U CN220046193U CN 220046193 U CN220046193 U CN 220046193U CN 202222986635 U CN202222986635 U CN 202222986635U CN 220046193 U CN220046193 U CN 220046193U
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- artificial
- hammer
- bone
- carbon composite
- adjustable
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- 210000003094 ear ossicle Anatomy 0.000 title claims abstract description 47
- 239000002131 composite material Substances 0.000 title claims abstract description 22
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 9
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 9
- 210000001050 stape Anatomy 0.000 claims abstract description 25
- 210000001785 incus Anatomy 0.000 claims abstract description 24
- 210000000988 bone and bone Anatomy 0.000 claims abstract description 21
- 241000309551 Arthraxon hispidus Species 0.000 claims abstract description 12
- 210000003454 tympanic membrane Anatomy 0.000 claims description 15
- CREMABGTGYGIQB-UHFFFAOYSA-N carbon carbon Chemical compound C.C CREMABGTGYGIQB-UHFFFAOYSA-N 0.000 claims description 13
- 239000011203 carbon fibre reinforced carbon Substances 0.000 claims description 13
- 229910052588 hydroxylapatite Inorganic materials 0.000 claims description 8
- XYJRXVWERLGGKC-UHFFFAOYSA-D pentacalcium;hydroxide;triphosphate Chemical compound [OH-].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O XYJRXVWERLGGKC-UHFFFAOYSA-D 0.000 claims description 8
- 210000004204 blood vessel Anatomy 0.000 claims description 6
- 210000003195 fascia Anatomy 0.000 claims description 6
- 241000878128 Malleus Species 0.000 claims description 3
- 210000002331 malleus Anatomy 0.000 claims description 3
- 239000010410 layer Substances 0.000 claims 5
- 239000011247 coating layer Substances 0.000 claims 2
- 238000003745 diagnosis Methods 0.000 abstract description 6
- 238000002513 implantation Methods 0.000 abstract description 6
- 208000035965 Postoperative Complications Diseases 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000006872 improvement Effects 0.000 abstract description 3
- 238000006073 displacement reaction Methods 0.000 abstract 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 7
- 239000010936 titanium Substances 0.000 description 7
- 229910052719 titanium Inorganic materials 0.000 description 7
- 239000011248 coating agent Substances 0.000 description 6
- 238000000576 coating method Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 2
- 210000005069 ears Anatomy 0.000 description 2
- 229910021645 metal ion Inorganic materials 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 206010067268 Post procedural infection Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000036770 blood supply Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 210000003027 ear inner Anatomy 0.000 description 1
- 210000000959 ear middle Anatomy 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 239000007943 implant Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000000053 physical method Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
Abstract
The utility model discloses an adjustable artificial auditory ossicle made of a carbon composite material, which comprises an artificial hammer bone and an artificial anvil bone, wherein one end of the artificial hammer bone is provided with a chassis, and the other end of the artificial hammer bone is provided with a spherical joint head; one end of the artificial incus is provided with a joint socket matched with a spherical joint head of the artificial hammer, and the other end of the artificial incus is provided with a hemispherical joint groove matched with a normal stapes or a residual stapes. The adjustable artificial auditory ossicle has the advantages of simple structure, low manufacturing cost, convenient implantation, shortened operation time, improved operation efficiency, difficult occurrence of postoperative complications such as displacement and falling off after implantation, obvious reduction of diagnosis and treatment cost of patients, great improvement of the hearing of the patients and improvement of the satisfaction degree of the patients.
Description
Technical Field
The utility model relates to the technical field of medical treatment, in particular to an adjustable artificial auditory ossicle made of a carbon composite material.
Background
At present, the auditory ossicle prosthesis which is most widely used at home and abroad is a titanium artificial prosthesis, has high strength, light weight and no biological toxicity, is not obviously degraded in vivo, and is an ideal artificial auditory ossicle material. However, the metallic titanium material has poor biocompatibility, high price, high shaping and cutting cost and great difficulty, and depends on import, so that the clinical application cost of the titanium auditory ossicles is greatly improved. In addition, because the titanium ossicular prosthesis has relatively fixed specification and simple structure, the requirements of different surgeons on hearing reconstruction and the requirements of patients on improving hearing cannot be met, and the diagnosis and treatment cost of the patients is greatly increased.
Disclosure of Invention
The utility model aims to solve the problems, and provides the adjustable artificial auditory ossicles made of the carbon composite material, which have the advantages of simple structure, low manufacturing cost, convenient implantation, shortened operation time, improved operation efficiency, less possibility of postoperative complications such as shifting and falling off after implantation, reduced diagnosis and treatment cost of patients, greatly improved hearing of the patients and improved satisfaction of the patients.
In order to achieve the above object, the present utility model provides an adjustable artificial auditory ossicle made of a carbon composite material, comprising an artificial hammer bone and an artificial anvil bone, wherein one end of the artificial hammer bone is provided with a chassis, and the other end is provided with a spherical joint head; one end of the artificial incus is provided with a joint socket matched with a spherical joint head of the artificial hammer, and the other end of the artificial incus is provided with a hemispherical joint groove matched with a normal stapes or a residual stapes.
Preferably, the surface of the artificial malleus chassis for contacting fascia of the reconstructed tympanic membrane is a flush surface.
Preferably, the chassis of the artificial hammer is provided with a plurality of through holes for the blood vessel to pass through, and the through holes are connected into a net shape.
Preferably, the artificial hammer is of a double-layer structure and comprises a carbon-carbon composite material layer positioned inside and a hydroxyapatite coating coated outside the carbon-carbon composite material layer.
Preferably, the artificial incus has a double-layer structure and comprises a carbon-carbon composite material layer positioned inside and a hydroxyapatite coating coated outside the carbon-carbon composite material layer.
Preferably, the artificial hammer and the artificial incus are manufactured according to the original hammer size and the original incus size of a normal person respectively, the operation process can be adapted to rebuild a middle ear cavity by adjusting the angle of the double spherical joints of the artificial auditory ossicles according to the type of the original ossicular chain defect of the patient, the structure of the approximately normal auditory ossicles is obtained to the greatest extent, and the hearing effect of the patient is obviously improved.
Compared with the prior art, the adjustable artificial auditory ossicles made of the carbon composite material have the following beneficial effects:
1. the adjustable artificial auditory ossicle has the advantages of simple structure, low manufacturing cost, convenient implantation, shortened operation time, improved operation efficiency, difficult occurrence of postoperative complications such as shifting and falling off after implantation, reduced diagnosis and treatment cost for patients, greatly improved hearing of patients and improved satisfaction of the patients.
2. The adjustable artificial auditory ossicle is characterized in that the artificial hammer bone is connected with the artificial incus through the spherical joint head, and the hemispherical joint groove on the artificial incus forms another spherical joint with the normal stapes or the residual stapes, so that the distance between the artificial auditory ossicle and the tympanic membrane and the stapes can be changed by adjusting the angle between the artificial hammer bone and the artificial incus and the normal stapes or the residual stapes, thereby ensuring that the optimal sound transmission effect of the artificial auditory ossicle is obtained.
3. The artificial hammer provided by the utility model has the advantages that the plurality of through holes are formed in the chassis, so that the blood vessels of the ears of a patient can pass through the through holes of the chassis to be connected with the normal tympanic membrane or the rebuilt tympanic membrane (fascia) and grow into a whole, the aim of amplifying sound intensity is achieved by increasing the conduction area, and the hearing improvement effect is better.
4. According to the adjustable artificial auditory ossicles, the artificial hammer bone and the artificial anvil bone are of double-layer structures with the hydroxyapatite coating coated outside the carbon-carbon composite material layer, compared with titanium artificial auditory ossicles, the adjustable artificial auditory ossicles are lighter in weight, better in biocompatibility with tympanic membrane of a patient, free of metal ion precipitation, suitable for acoustic conduction characteristics and better in acoustic sound transmission effect, and the artificial hammer bone and the artificial anvil bone are of double-layer structures with the hydroxyapatite coating coated outside the carbon-carbon composite material layer.
The present utility model will be described in detail with reference to the accompanying drawings.
Drawings
FIG. 1 is a schematic view of the structure of an adjustable artificial auditory ossicle of the present utility model;
FIG. 2 is a schematic view of the adjustable artificial auditory ossicle of the present utility model in a configuration to be attached to a normal stapes;
FIG. 3 is a schematic view of the structure of an artificial hammer of the present utility model;
fig. 4 is a schematic structural view of an artificial incus of the present utility model.
Detailed Description
As shown in fig. 1 and 2, the adjustable artificial auditory ossicles made of the carbon composite material of the utility model and the structure thereof when being matched with the normal stapes are respectively simplified, and as can be seen from the figures, the adjustable artificial auditory ossicles of the utility model comprise an artificial hammer 2 and an artificial anvil 1, and as can be seen from fig. 1-4, one end of the artificial hammer is provided with a chassis 3, and the other end is provided with a spherical joint head 5; the artificial incus has a socket 8 at one end for cooperation with the spherical joint head of the artificial hammer, and a hemispherical joint recess 7 at the other end for cooperation with the normal stapes 9 or the connector 10 of the residual stapes plate.
In particular, the adjustable artificial auditory ossicles of the present utility model comprise an artificial hammer 2 and an artificial anvil 1 connected by a spherical joint.
The artificial hammer 2 comprises a cylindrical hammer main body, a chassis 3 arranged at one end of the hammer main body and integrally formed with the hammer main body, and a spherical joint head 5 arranged at the other end of the hammer main body and integrally formed with the hammer main body. The surface of the chassis 3, which is used for being in contact with fascia of the reconstructed tympanic membrane, is a flush surface, a plurality of through holes 4 penetrating through the thickness are formed in the chassis 3, the through holes can be round or other shapes, the through holes are connected into a net shape, and the artificial hammer chassis with the plurality of round holes plays two roles: the ingrowth of new blood vessels is facilitated, and the blood supply is provided for the new blood vessels; is favorable for the fixation of the transplanted fascia. After the artificial auditory ossicles are transplanted, blood vessels in the ears of the patient can pass through the through holes to be connected with normal tympanic membrane or fascia of the rebuilt tympanic membrane and grow into a whole, so that the auditory ossicle conduction area is increased, the sound intensity is amplified, the hearing of the patient is better improved, postoperative complications such as shifting and falling off are not easy to occur after the artificial auditory ossicles are transplanted, the subsequent diagnosis and treatment cost of the patient is greatly reduced, the subsequent diagnosis and treatment pain of the patient is reduced, and the satisfaction degree of the patient is improved.
The artificial incus 1 comprises a columnar incus main body, a joint sleeve 8 arranged at one end of the incus main body and integrally formed with the incus main body, and a connecting sleeve 7 arranged at the other end of the incus main body and integrally formed with the incus main body. Wherein, the side of joint cover facing away from the stock main part is provided with the joint nest that is used for cooperating with the spherical joint head of artifical malleus, and the side of adapter sleeve facing away from the stock main part is provided with the hemispherical joint recess that is used for cooperating with the connector 10 of normal stapes 9 or remaining stapes.
Because the artificial hammer bone and the artificial incus are connected through the spherical joint head, and the hemispherical joint groove on the artificial incus and the normal stapes or the residual stapes form another spherical joint, the distance between the artificial auditory ossicles and the tympanic membrane or the stapes can be changed by adjusting the angles between the artificial hammer bone and the artificial incus and between the artificial incus and the normal stapes or the residual stapes, so that the optimal sound transmission effect of the artificial auditory ossicles is ensured.
Wherein, the artificial hammer bone and the artificial anvil bone are both of double-layer structures and respectively comprise a carbon-carbon composite material layer positioned inside and a hydroxyapatite coating coated outside the carbon-carbon composite material layer. When in manufacture, the sizes of the artificial hammer and the artificial anvil are determined according to the sizes of the original hammer and the original anvil obtained by imaging and intraoperative physical measurement of a patient before operation, then the artificial hammer and the artificial anvil formed by the hydroxyapatite coating tightly combined with the carbon-carbon composite material are respectively obtained by an acousto-electric deposition method, and then the artificial hammer is connected with the residual normal tympanic membrane or tympanic membrane graft and the artificial anvil with the residual structure on the normal stapes or the stapes plate according to the specific condition of the intraoperative receptor wound surface to form a new and complete artificial auditory ossicle, thereby forming an effective conduction path for transmitting sound from the external auditory meatus to the inner ear through the artificial auditory ossicle, and enabling the patient to complete the normal auditory process.
The artificial auditory ossicles of the utility model have slightly different materials and forms from normal human auditory ossicles, and have the size similar to that of normal auditory ossicles of patients, so that the artificial auditory ossicles of the utility model can greatly improve the hearing of patients, compared with the titanium artificial auditory ossicles of the prior art, the artificial auditory ossicles of the utility model have lighter mass, have biomechanical characteristics similar to normal auditory ossicles of patients, have better biocompatibility with tympanic membranes of patients, are not easy to generate postoperative complications such as shift and fall off, have no metal ion precipitation, have rigidity modulus and elastic modulus suitable for acoustic conduction characteristics, have the cost saved by nearly 1/3-1/2, are simple to implant, save operation time and reduce postoperative infection probability. In addition, the acoustic sound transmission effect of the artificial auditory ossicles of the present utility model is better and the patient's audiology is improved better than a titanium artificial auditory ossicle which must adjust the distance between the tympanic membrane and the stapes by cutting (truncating) the auditory ossicle.
Although the present utility model has been described in detail hereinabove, the present utility model is not limited thereto, and modifications may be made by those skilled in the art in light of the principles of the present utility model, and it is therefore intended that all such modifications as fall within the scope of the present utility model.
Claims (5)
1. An adjustable artificial auditory ossicle made of carbon composite material, which comprises an artificial hammer bone and an artificial anvil bone, and is characterized in that:
one end of the artificial hammer bone is provided with a chassis, and the other end of the artificial hammer bone is provided with a spherical joint head;
one end of the artificial incus is provided with a joint socket matched with a spherical joint head of the artificial hammer, and the other end of the artificial incus is provided with a hemispherical joint groove matched with a normal stapes or a residual stapes.
2. The adjustable artificial auditory ossicle of claim 1, wherein the surface of the artificial hammer chassis for contacting fascia of a reconstructed tympanic membrane is a flush surface.
3. The adjustable artificial auditory ossicle of claim 2, wherein the chassis of the artificial malleus is provided with a plurality of through holes for blood vessels to pass through and to facilitate reconstruction of tympanic membrane fixation.
4. The adjustable artificial auditory ossicle of claim 1, wherein the artificial hammer is a double-layered structure comprising an inner carbon-carbon composite layer and a hydroxyapatite coating layer coated on the outer side of the carbon-carbon composite layer.
5. The adjustable artificial auditory ossicle of claim 1, wherein the artificial anvil has a double layer structure comprising an inner carbon-carbon composite layer and a hydroxyapatite coating layer coated on the outer side of the carbon-carbon composite layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222986635.6U CN220046193U (en) | 2022-11-10 | 2022-11-10 | Adjustable artificial auditory ossicles made of carbon composite material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222986635.6U CN220046193U (en) | 2022-11-10 | 2022-11-10 | Adjustable artificial auditory ossicles made of carbon composite material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220046193U true CN220046193U (en) | 2023-11-21 |
Family
ID=88765866
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222986635.6U Active CN220046193U (en) | 2022-11-10 | 2022-11-10 | Adjustable artificial auditory ossicles made of carbon composite material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220046193U (en) |
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2022
- 2022-11-10 CN CN202222986635.6U patent/CN220046193U/en active Active
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