CN210228401U - Auditory ossicle prosthesis capable of buffering pressure - Google Patents
Auditory ossicle prosthesis capable of buffering pressure Download PDFInfo
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- CN210228401U CN210228401U CN201920340313.XU CN201920340313U CN210228401U CN 210228401 U CN210228401 U CN 210228401U CN 201920340313 U CN201920340313 U CN 201920340313U CN 210228401 U CN210228401 U CN 210228401U
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Abstract
The utility model discloses a pressure-buffering ossicle prosthesis, which comprises a top disc, a connecting rod and a base, wherein the top disc is provided with ribs, the bottom of the top disc is provided with a recessed cavity, so that the top disc is in a cover shape, and the periphery of the top disc forms an annular edge; the connecting rod comprises an upper connecting rod, a middle connecting rod and a lower connecting rod which are sequentially hinged from top to bottom and form a Z shape, the top end of the upper connecting rod is connected with the top disc through a ball-and-socket joint, and the bottom end of the lower connecting rod is connected with the base; the bottom of the base is provided with a groove, and the base is also provided with a group of vertical through holes; the structure of the top disc is changed, so that when the top disc is in contact with the tympanic membrane, the contact stress can be reduced, and the damage to the tympanic membrane is avoided; the connecting rod is designed into a three-section structure, and the hinge point of the upper connecting rod and the middle connecting rod is taken as an axis, so that the middle connecting rod and the lower connecting rod can rotate along the axis, and the fine adjustment of the height is realized; the recess and the triangular opening of the base can form a fit with a projection on the stapes footplate, so that the base is more closely connected with the stapes footplate and is convenient to heal with surrounding tissues together.
Description
Technical Field
The utility model relates to the technical field of medical equipment, specifically a but small bone prosthesis is listened to pressure buffer.
Background
The ossicles of the middle ear (consisting of three ossicles, called auditory ossicle chain, in sequence from the outside inwards: malleus, incus, stapes, the stapes consisting of the stapes arch and the stapes footplate, the latter being in contact with the perilymph fluid of the inner ear, the last structure of the middle ear that transmits vibrations to the inner ear) are often damaged by disease, trauma or congenital deformities. Sometimes the malleus and/or incus and the stapes lamina are structurally damaged, resulting in inefficient transmission of vibrations from the tympanic membrane to the stapes footplate, resulting in conductive hearing loss. When the damaged ossicle is replaced by the ossicle prosthesis, the vibration from the tympanic membrane is transmitted to the stapes footplate by the ossicle prosthesis, and the conductive hearing loss caused by the damaged ossicle is partially or completely compensated. In addition, the auditory ossicles in physiological states have the hammering block joint, the incudostapetum joint, the stapedial ring ligament, the soft link between the tympanic membrane and the malleus, and the ligaments of the malleus and the incus, so that the tympanic auditory ossicle chain system can buffer the middle ear cavity pressure changes. Such a replacement ossicular prosthesis is also referred to as an entirely artificial ossicle or an entirely ossicular prosthesis.
Currently, auditory ossicle prostheses are generally constructed with a head plate, a linkage rod and a base, replacing the incus, the stapes supra-structure and/or the malleus. When the existing ossicular prosthesis is used, the top disc is in contact with the tympanic membrane at the contact part of the ossicular prosthesis, and the tympanic membrane is damaged and perforated even the implant is removed due to overlarge tangential stress and normal stress on the tympanic membrane caused by the pressure change of the middle ear cavity; the top disc is fixed with the connecting rod, and the normal stress and the shear stress of the tympanic membrane at the contact part of the tympanic membrane and the artificial ossicle can not be obviously increased due to the hard connection mode which can not buffer the pressure change of the middle ear cavity; in addition, the base is a solid platform that is difficult to attach to the footplate of the stapes, on the one hand, and also difficult to heal, on the other hand.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a but small bone prosthesis of hearing of buffer pressure, this small bone prosthesis of hearing can reduce the tympanic membrane and artifical ossicular contact part's stress, avoids artifical ossicular to the damage of tympanic membrane, furthest buffering middle ear pressure change, and convenient in addition links to each other with the footplate of stapes, and the soft tissue is gone into around being convenient for, plays fixed artifical ossicular effect to realize best transaudient effect.
The utility model provides a technical scheme that its technical problem adopted is:
an ossicle prosthesis capable of buffering pressure comprises a top disc, a connecting rod and a base, wherein the top disc is provided with ribs; the bottom of the top disc is provided with a recessed cavity, so that the top disc is in a cover shape, and the periphery of the top disc forms an annular edge; the connecting rod comprises an upper connecting rod, a middle connecting rod and a lower connecting rod which are sequentially hinged from top to bottom and form a Z shape, the top end of the upper connecting rod is connected with the top disc through a ball-and-socket joint, and the bottom end of the lower connecting rod is connected with the base; the base bottom is equipped with the recess, still is equipped with a set of vertical through-hole on the base.
Furthermore, the ribs of the top plate are S-shaped.
Furthermore, the groove of the base is a triangular groove arranged along the axial direction of the base.
Furthermore, vertical triangular openings are respectively arranged on two sides of the base.
Furthermore, the through-hole contains four, and four through-holes are the rectangle and distribute in the base.
Furthermore, a buffer spring is arranged in the ball-and-socket joint.
Further, the top disc is circular or oval.
Further, the ball-and-socket joint is located at the center or eccentric position of the top plate.
The utility model has the advantages that:
the structure of the top disc is changed, so that when the top disc is in contact with the tympanic membrane, the contact stress can be reduced, and the damage to the tympanic membrane caused by an acute angle generated when the top disc is obliquely placed is avoided;
secondly, the ribs on the top disc are arranged in an S shape, so that the visual field during operation can be enlarged, blind areas can be reduced, and the quality of the auditory ossicle prosthesis can be reduced;
thirdly, the top disc is connected with the connecting rod through the ball-and-socket joint, so that the angle between the top disc and the connecting rod can be flexibly and conveniently adjusted, and the device is suitable for the requirements of different patients;
a buffer spring is arranged in the ball-and-socket joint, so that the air pressure change of a part of middle ears can be buffered, the pressure of the top disc on the eardrum is reduced, the damage of the top disc on the eardrum is further reduced, and the falling rate of the implant is reduced;
fifthly, the connecting rods are designed into a three-section structure, and the hinge point of the upper connecting rod and the middle connecting rod is taken as an axis, so that the middle connecting rod and the lower connecting rod can rotate along the axis, and the fine adjustment of the height is realized;
sixthly, the groove at the bottom of the base and the triangular openings at the two sides of the base can be matched with the residual convex part on the stapes bottom plate, so that the base is more tightly connected with the stapes bottom plate, and the surrounding tissues can conveniently grow in to play a role in fixing;
seventhly, the through holes in the base can reduce the weight of the base, reduce the overall quality, and facilitate the growth of surrounding tissues, thereby fixing the auditory ossicle prosthesis.
Drawings
The invention will be further described with reference to the following figures and examples:
fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a schematic perspective view of the top cover of the present invention;
fig. 3 is a bottom perspective view of the top cover of the present invention;
fig. 4 is a schematic perspective view of the base of the present invention;
fig. 5 is a bottom perspective view of the base of the present invention.
Detailed Description
Referring to fig. 1 to 3, the present invention provides a pressure-cushioned ossicle prosthesis, which comprises a top plate 1, a connecting rod and a base 3, wherein the top plate 1 is provided with ribs 4, and the ribs are in an S shape; the bottom of the top disc 1 is provided with a recessed cavity 5, so that the top disc is in a cover shape, and the periphery of the top disc forms an annular edge 6; the connecting rods comprise an upper connecting rod 2a, a middle connecting rod 2b and a lower connecting rod 2c which are sequentially hinged from top to bottom and form a Z shape, the top end of the upper connecting rod 2a is connected with the top disc 1 through a ball-and-socket joint 7, and the bottom end of the lower connecting rod 2c is connected with the base 3; preferably, a buffer spring 8 is arranged in the ball joint 7; referring to fig. 4 and 5, a groove 9 is formed in the bottom of the base 3, and the groove 9 is a triangular groove axially formed along the base 3; two sides of the base 3 are respectively provided with a vertical triangular opening 10; still be equipped with a set of vertical through-hole 11 on the base 3, the through-hole contains four, and four through-holes are rectangular distribution in the base. The top plate 1 is circular or elliptical. The ball joint 7 is located in the center of the top plate 1, and may be located at an eccentric position of the top plate 1.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way; the invention is not limited to the embodiments described herein, but is capable of other embodiments according to the invention, and may be used in various other applications, including, but not limited to, industrial. Therefore, any simple modification, equivalent replacement, equivalent change and modification made to the above embodiments by the technical entity of the present invention all still belong to the protection scope of the technical solution of the present invention.
Claims (8)
1. An ossicle prosthesis capable of buffering pressure comprises a top disc, a connecting rod and a base, wherein the top disc is provided with ribs and is characterized in that the bottom of the top disc is provided with a recessed cavity, so that the top disc is in a cover shape, and the periphery of the top disc forms an annular edge; the connecting rod comprises an upper connecting rod, a middle connecting rod and a lower connecting rod which are sequentially hinged from top to bottom and form a Z shape, the top end of the upper connecting rod is connected with the top disc through a ball-and-socket joint, and the bottom end of the lower connecting rod is connected with the base; the base bottom is equipped with the recess, still is equipped with a set of vertical through-hole on the base.
2. A pressure cushioned ossicular prosthesis as set forth in claim 1, wherein the top disc ribs are S-shaped.
3. A pressure buffered ossicular prosthesis according to claim 1 or 2, wherein the base recess is a triangular groove disposed axially along the base.
4. An ossicular prosthesis according to claim 3, wherein the base has vertical triangular openings on each side.
5. An ossicular prosthesis according to claim 1 or 2, wherein the number of through-holes comprises four, four being rectangularly distributed in the base.
6. An auditory ossicle prosthesis according to claim 1 or 2 wherein a damping spring is provided within the ball and socket joint.
7. An auditory ossicle prosthesis according to claim 6 wherein the head disc is circular or oval in shape.
8. A pressure cushioned ossicular prosthesis according to claim 7, wherein the ball and socket joint is located in a central or eccentric position relative to the top plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920340313.XU CN210228401U (en) | 2019-03-18 | 2019-03-18 | Auditory ossicle prosthesis capable of buffering pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920340313.XU CN210228401U (en) | 2019-03-18 | 2019-03-18 | Auditory ossicle prosthesis capable of buffering pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210228401U true CN210228401U (en) | 2020-04-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920340313.XU Active CN210228401U (en) | 2019-03-18 | 2019-03-18 | Auditory ossicle prosthesis capable of buffering pressure |
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| CN (1) | CN210228401U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109730807A (en) * | 2019-03-18 | 2019-05-10 | 安徽奥弗智能微创医疗器械有限公司 | It is a kind of can compensator or trimmer pressure auditory ossicle prosthesis |
| CN112932736A (en) * | 2021-02-24 | 2021-06-11 | 苏州真懿医疗有限公司 | Adjustable ossicular prosthesis |
-
2019
- 2019-03-18 CN CN201920340313.XU patent/CN210228401U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109730807A (en) * | 2019-03-18 | 2019-05-10 | 安徽奥弗智能微创医疗器械有限公司 | It is a kind of can compensator or trimmer pressure auditory ossicle prosthesis |
| CN109730807B (en) * | 2019-03-18 | 2024-04-19 | 安徽奥弗智能微创医疗器械集团有限公司 | Pressure-cushioned ossicle prosthesis |
| CN112932736A (en) * | 2021-02-24 | 2021-06-11 | 苏州真懿医疗有限公司 | Adjustable ossicular prosthesis |
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 233000, No. 551, Gaoxin Road, Bengbu City, Anhui Province Patentee after: Anhui aofu intelligent minimally invasive medical instrument Group Co.,Ltd. Address before: 233000, No. 551, Gaoxin Road, high tech Zone, Bengbu City, Anhui Province Patentee before: ANHUI AOFU INTELLIGENT MINIMALLY INVASIVE MEDICAL DEVICES Co.,Ltd. |
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| CP03 | Change of name, title or address |