CN209864173U - Low-stress rotatable auditory ossicle prosthesis - Google Patents
Low-stress rotatable auditory ossicle prosthesis Download PDFInfo
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- CN209864173U CN209864173U CN201920340353.4U CN201920340353U CN209864173U CN 209864173 U CN209864173 U CN 209864173U CN 201920340353 U CN201920340353 U CN 201920340353U CN 209864173 U CN209864173 U CN 209864173U
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Abstract
The utility model discloses a low-stress rotatable 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 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 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 can be 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 recess of base bottom and the triangle opening of base both sides can form the cooperation with the arch on the stapes footplate, make base and stapes footplate be connected closely more to be convenient for organize the healing.
Description
Technical Field
The utility model relates to the technical field of medical equipment, in particular to a low-stress rotatable ossicle prosthesis.
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. If such damage results in discontinuity or fixation of the ossicular chain between the tympanic membrane and the stapes footplate, vibrations transmitted from the tympanic membrane are not efficiently transmitted 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 ossicle damage is partially or completely compensated. Some or all of these ossicles may be replaced with a small prosthesis.
Currently, auditory ossicle prostheses are generally composed of a head plate, a linkage and a base, constituting the ossicular chain replacing the malleus, incus and stapes. When the existing ossicle prosthesis is used, the fact that the top disc is often over stressed when contacting with the tympanic membrane, and the tympanic membrane is damaged is found; the top disc and the connecting rod are fixed, 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, which is difficult to be stably connected with the footplate of the stapes on one hand, and peripheral soft tissues are difficult to be fused with the footplate of the stapes on the other hand.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a rotatable formula of low stress ossicle prosthesis should listen ossicle prosthesis can reduce and the tympanic membrane between stress, avoid haring the tympanic membrane, and the home range is in order to adjust use angle, and convenient foot plate with the stapes links to each other in addition, healing with higher speed.
The utility model provides a technical scheme that its technical problem adopted is:
a low-stress rotatable ossicle 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 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 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.
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 requirement of the change of the relative position between the tympanic membrane and the ossicle prosthesis caused by the pressure change of different middle ear cavities is met;
fourthly, a buffer spring is arranged in the ball-and-socket joint, so that air pressure can be buffered, and the stroke or the height of the ossicle prosthesis can be finely adjusted;
fifthly, 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;
sixthly, 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 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 an enlarged bottom perspective view of the base of the present invention.
Detailed Description
Referring to fig. 1 to 3, the present invention provides a low stress rotatable ossicle prosthesis, which comprises a top disc 1, a connecting rod 2 and a base 3, wherein the top disc 1 is provided with ribs 4, and the ribs 4 are S-shaped; 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 an annular edge 6 is formed at the periphery of the top disc 1; as shown in 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 in the bottom of the base 3, and the groove 9 is a triangular groove axially formed along the base; vertical triangular openings 10 are respectively formed in the two sides of the base 3, and the grooves 9 and the triangular openings 10 can be matched with bulges on a stapes footplate; still be equipped with a set of vertical through-hole 11 on the base 3, through-hole 11 contains four, and four through-holes are rectangular distribution in the base. The utility model discloses a top dish 1 is circular or oval, and ball socket joint 7 is located top dish center 1, also can eccentric settings.
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. A low-stress rotatable ossicle prosthesis 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 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.
2. A low stress rotatable ossicular prosthesis according to claim 1, wherein the top disc ribs are S-shaped.
3. A low stress rotatable ossicular prosthesis according to claim 1 or 2, wherein the recess of the base is a triangular groove disposed axially along the base.
4. A low stress rotatable ossicular prosthesis according to claim 3, wherein the base is provided with vertical triangular openings at both sides thereof, respectively.
5. The low stress rotatable ossicular prosthesis of claim 4, wherein the number of through holes comprises four, four through holes being rectangularly disposed on the base.
6. A low stress rotatable ossicular prosthesis according to claim 1 or 2, wherein a buffer spring is provided in the ball-and-socket joint.
7. A low stress rotatable auditory ossicle prosthesis according to claim 1 or 2 wherein the top disc is circular or oval.
8. A low stress rotatable ossicular prosthesis according to claim 7, wherein the ball and socket joint is located in a central or eccentric position with respect to the top plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920340353.4U CN209864173U (en) | 2019-03-18 | 2019-03-18 | Low-stress rotatable auditory ossicle prosthesis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920340353.4U CN209864173U (en) | 2019-03-18 | 2019-03-18 | Low-stress rotatable auditory ossicle prosthesis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209864173U true CN209864173U (en) | 2019-12-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920340353.4U Active CN209864173U (en) | 2019-03-18 | 2019-03-18 | Low-stress rotatable auditory ossicle prosthesis |
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| Country | Link |
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| CN (1) | CN209864173U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109730809A (en) * | 2019-03-18 | 2019-05-10 | 安徽奥弗智能微创医疗器械有限公司 | A kind of turnable auditory ossicle prosthesis of low stress |
-
2019
- 2019-03-18 CN CN201920340353.4U patent/CN209864173U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109730809A (en) * | 2019-03-18 | 2019-05-10 | 安徽奥弗智能微创医疗器械有限公司 | A kind of turnable auditory ossicle prosthesis of low stress |
| CN109730809B (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 | Low-stress rotatable ossicular prosthesis |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |