CN109730809B - Low-stress rotatable ossicular prosthesis - Google Patents
Low-stress rotatable ossicular prosthesis Download PDFInfo
- Publication number
- CN109730809B CN109730809B CN201910204365.9A CN201910204365A CN109730809B CN 109730809 B CN109730809 B CN 109730809B CN 201910204365 A CN201910204365 A CN 201910204365A CN 109730809 B CN109730809 B CN 109730809B
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- Prior art keywords
- base
- top disc
- rotatable
- stress
- connecting rod
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- 230000001936 parietal effect Effects 0.000 claims 1
- 210000001050 stape Anatomy 0.000 abstract description 15
- 210000003454 tympanic membrane Anatomy 0.000 abstract description 12
- 230000001154 acute effect Effects 0.000 abstract description 2
- 230000035876 healing Effects 0.000 abstract description 2
- 210000000959 ear middle Anatomy 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 208000000781 Conductive Hearing Loss Diseases 0.000 description 2
- 206010010280 Conductive deafness Diseases 0.000 description 2
- 241000878128 Malleus Species 0.000 description 2
- 208000023563 conductive hearing loss disease Diseases 0.000 description 2
- 210000003027 ear inner Anatomy 0.000 description 2
- 210000001785 incus Anatomy 0.000 description 2
- 210000002331 malleus Anatomy 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 210000001519 tissue Anatomy 0.000 description 2
- 206010010356 Congenital anomaly Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 210000004049 perilymph Anatomy 0.000 description 1
- 210000004872 soft tissue Anatomy 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000008733 trauma Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Abstract
The invention discloses a low-stress rotatable ossicular 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 an inward concave cavity, the top disc is in a cover shape, and the periphery of the top disc forms an annular edge; the top disc is connected with the connecting rod through a ball joint; 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 contacted 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; the angle between the top disc and the connecting rod can be flexibly and conveniently adjusted through the ball-and-socket joint, so that the device is suitable for the requirements of different patients; the groove at the bottom of the base and the triangular openings at the two sides of the base can be matched with the protrusions on the stapes footplate, so that the base and the stapes footplate are more tightly connected, and the tissue healing is facilitated.
Description
Technical Field
The invention relates to the technical field of medical appliances, in particular to a low-stress rotatable ossicular prosthesis.
Background
The middle ear ossicles (consisting of three ossicles, called ossicular chain, in turn from outside to inside: malleus, incus, stapes consisting of the stapes arch and the stapes floor, the latter in contact with the perilymph fluid of the inner ear, the last structure of the middle ear transmitting vibrations to the inner ear) are often damaged due to diseases, trauma or congenital anomalies. If such damage results in a discontinuous or fixed ossicular chain between the tympanic membrane and the stapes footplate, vibrations transmitted from the tympanic membrane are not effectively transmitted to the stapes footplate, resulting in conductive hearing loss. When the damaged ossicles are replaced by the ossicular prosthesis, the vibrations transmitted from the tympanic membrane are transmitted by the ossicular prosthesis to the footplate of the stapes, thereby partially or completely compensating for the conductive hearing loss caused by the damaged ossicles. Some or all of these ossicles may be replaced with small prostheses.
At present, ossicular prostheses are generally composed of a top plate, a connecting rod and a base, thereby forming an ossicular chain which replaces the malleus, the incus and the stapes. When the existing ossicular prosthesis is used, the top disc is often over-stressed when being contacted with the tympanic membrane, and the tympanic membrane is damaged; the top disc is fixed with the connecting rod, so that the movable range is limited, and the hard connection mode cannot bear the pressure change impact of the middle ear cavity; in addition, the base is a solid platform, so that the base is difficult to firmly connect with the footplate of the stapes on one hand, and peripheral soft tissues are difficult to fuse with the footplate of the stapes on the other hand.
Disclosure of Invention
The invention aims to provide a low-stress rotatable ossicular prosthesis, which can reduce stress between the ossicular prosthesis and a tympanic membrane, avoid damaging the tympanic membrane, has a wide range of motion, is convenient for adjusting a use angle, is convenient to be connected with a footplate of a stapes and accelerates healing.
The technical scheme adopted for solving the technical problems is as follows:
A low-stress rotatable ossicular prosthesis 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 an inward concave cavity, so that the top disc is in a cover shape, and the periphery of the top disc forms an annular edge; the top disc is connected with the connecting rod through a ball joint; the base bottom is equipped with the recess, still is equipped with a set of vertical through-hole on the base.
Further, the ribs of the top plate are S-shaped.
Further, the groove of the base is a triangular groove axially arranged along the base.
Further, two sides of the base are respectively provided with a vertical triangular opening.
Further, the through holes comprise four through holes, and the four through holes are distributed on the base in a rectangular shape.
Further, a buffer spring is arranged in the ball joint.
Further, the top plate is circular or elliptical.
Further, the ball-and-socket joint is located in the center or eccentric position of the top disk.
The beneficial effects of the invention are as follows:
1. The structure of the top disc is changed, so that when the top disc is contacted 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;
2. The ribs on the top disc are arranged in an S shape, so that the visual field during operation can be enlarged, the occurrence of blind areas can be reduced, and the quality of ossicular prostheses can be reduced;
3. 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 requirements of relative position change between the tympanic membrane and the ossicular prosthesis caused by pressure change of different middle ear cavities are met;
4. the buffer spring is arranged in the ball joint, so that the air pressure can be buffered, and the stroke or the height of the ossicular prosthesis can be finely adjusted;
5. the grooves at the bottom of the base and the triangular openings at the two sides of the base can be matched with the residual bulge on the stapes bottom plate, so that the base and the stapes bottom plate are more tightly connected, and peripheral tissues can grow in conveniently, thereby playing a role in fixation;
6. The through holes on the base can reduce the weight of the base, reduce the overall quality, and facilitate the growth of surrounding tissues, thereby fixing the ossicular prosthesis.
Drawings
The invention is further illustrated by the following examples in conjunction with the accompanying drawings:
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a bottom perspective view of the present invention;
FIG. 3 is a bottom view of the present invention;
FIG. 4 is a side view of the present invention;
fig. 5 is a bottom enlarged perspective view of the base of the present invention.
Detailed Description
Referring to fig. 1 to 3, the invention provides a low-stress rotatable ossicular prosthesis, which comprises a top plate 1, a connecting rod 2 and a base 3, wherein the top plate 1 is provided with ribs 4, and the ribs 4 are S-shaped; the bottom of the top disc 1 is provided with an inward concave cavity 5, so that the top disc is in a cover shape, and the periphery of the top disc 1 forms an annular edge 6; referring to fig. 4, the top plate 1 is connected with the connecting rod 2 through a ball joint 7; preferably, a buffer spring 8 is arranged in the ball joint 7; referring to fig. 5, a groove 9 is formed at the bottom of the base 3, and the groove 9 is a triangular groove axially formed along the base; the two sides of the base 3 are also respectively provided with a vertical triangular opening 10, and the groove 9 and the triangular opening 10 can be matched with the bulge on the stapes footplate; the base 3 is also provided with a group of vertical through holes 11, the through holes 11 comprise four through holes, and the four through holes are distributed on the base in a rectangular shape. The top disk 1 of the invention is round or oval, and the ball joint 7 is positioned in the center 1 of the top disk, and can also be arranged eccentrically.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention in any way; any person skilled in the art can make many possible variations and modifications to the technical solution of the present invention or modifications to equivalent embodiments using the methods and technical contents disclosed above, without departing from the scope of the technical solution of the present invention. Therefore, any simple modification, equivalent substitution, equivalent variation and modification of the above embodiments according to the technical substance of the present invention, which do not depart from the technical solution of the present invention, still fall within the scope of the technical solution of the present invention.
Claims (5)
1. The low-stress rotatable ossicular prosthesis comprises a top disc, a connecting rod and a base, wherein ribs are arranged on the top disc; the top disc is connected with the connecting rod through a ball joint; the bottom of the base is provided with a groove, and the base is also provided with a group of vertical through holes;
The groove of the base is a triangular groove axially arranged along the base;
Two sides of the base are respectively provided with a vertical triangular opening;
And a buffer spring is arranged in the ball joint.
2. The low stress rotatable ossicular prosthesis of claim 1, wherein the ribs of the top disk are S-shaped.
3. The low stress rotatable ossicular prosthesis of claim 1, wherein the through-hole comprises four through-holes, the four through-holes being rectangular in shape and disposed in the base.
4. A low stress rotatable ossicular prosthesis according to claim 1 or 2, wherein the top disc is circular or oval.
5. The low stress rotatable ossicular prosthesis of claim 4, wherein the ball and socket joint is centered on the parietal disk or off-center.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910204365.9A CN109730809B (en) | 2019-03-18 | 2019-03-18 | Low-stress rotatable ossicular prosthesis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910204365.9A CN109730809B (en) | 2019-03-18 | 2019-03-18 | Low-stress rotatable ossicular prosthesis |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109730809A CN109730809A (en) | 2019-05-10 |
| CN109730809B true CN109730809B (en) | 2024-04-19 |
Family
ID=66370770
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910204365.9A Active CN109730809B (en) | 2019-03-18 | 2019-03-18 | Low-stress rotatable ossicular prosthesis |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109730809B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201160920Y (en) * | 2008-02-26 | 2008-12-10 | 王希军 | Partial-titanium ear ossicle |
| CN209864173U (en) * | 2019-03-18 | 2019-12-31 | 安徽奥弗智能微创医疗器械有限公司 | Low-stress rotatable auditory ossicle prosthesis |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7250059B2 (en) * | 2004-09-14 | 2007-07-31 | Clarity Corporation | Myringopexy type titanium prosthesis |
| DE202011052221U1 (en) * | 2011-12-07 | 2012-01-16 | Heinz Kurz Gmbh Medizintechnik | Length variable passive ossicle prosthesis |
-
2019
- 2019-03-18 CN CN201910204365.9A patent/CN109730809B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201160920Y (en) * | 2008-02-26 | 2008-12-10 | 王希军 | Partial-titanium ear ossicle |
| CN209864173U (en) * | 2019-03-18 | 2019-12-31 | 安徽奥弗智能微创医疗器械有限公司 | Low-stress rotatable auditory ossicle prosthesis |
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| Publication number | Publication date |
|---|---|
| CN109730809A (en) | 2019-05-10 |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 233000, No. 551, Gaoxin Road, Bengbu City, Anhui Province Applicant 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 Applicant before: ANHUI AOFU INTELLIGENT MINIMALLY INVASIVE MEDICAL DEVICES Co.,Ltd. |
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| GR01 | Patent grant |