CN215307037U - Auditory ossicle prosthesis - Google Patents
Auditory ossicle prosthesis Download PDFInfo
- Publication number
- CN215307037U CN215307037U CN202121580819.1U CN202121580819U CN215307037U CN 215307037 U CN215307037 U CN 215307037U CN 202121580819 U CN202121580819 U CN 202121580819U CN 215307037 U CN215307037 U CN 215307037U
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- CN
- China
- Prior art keywords
- connector
- supporting plate
- prosthesis according
- tympanic membrane
- ossicular prosthesis
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 210000003094 ear ossicle Anatomy 0.000 title claims abstract description 8
- 210000003454 tympanic membrane Anatomy 0.000 claims abstract description 21
- 210000001050 stape Anatomy 0.000 claims abstract description 19
- 230000003014 reinforcing effect Effects 0.000 claims description 7
- 238000007493 shaping process Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 6
- 230000002980 postoperative effect Effects 0.000 abstract description 3
- 238000011084 recovery Methods 0.000 abstract description 3
- 210000003041 ligament Anatomy 0.000 description 2
- 206010010356 Congenital anomaly Diseases 0.000 description 1
- 241000878128 Malleus Species 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 230000007547 defect 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
- 210000000959 ear middle Anatomy 0.000 description 1
- 210000005069 ears Anatomy 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 210000001785 incus Anatomy 0.000 description 1
- 210000002331 malleus Anatomy 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 210000004877 mucosa Anatomy 0.000 description 1
- 231100000915 pathological change Toxicity 0.000 description 1
- 230000036285 pathological change Effects 0.000 description 1
- 239000003351 stiffener Substances 0.000 description 1
- 210000001519 tissue Anatomy 0.000 description 1
Images
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- Prostheses (AREA)
Abstract
The utility model discloses an auditory ossicle prosthesis, which comprises a middle rod, wherein two ends of the middle rod are respectively and integrally formed with a supporting plate and a connector, the supporting plate is used for connecting a tympanic membrane, the connector is used for connecting a stapes, and an included angle between the middle rod and a plane where the supporting plate is located is less than ninety degrees. All the structures of the utility model are integrally formed, the vibration effect of the tympanic membrane is good, and the postoperative recovery effect of the patient is ensured.
Description
Technical Field
The utility model relates to the technical field of medical auxiliary instruments, in particular to an auditory ossicle prosthesis.
Background
The ossicle (ossicle) is the smallest bone in the human body, also called ossicle, and the left and right ears are composed of three ossicles, anvil and stapes, most of which are located in the upper tympanic cavity and connected by ligaments and joints to form the ossicular chain. The malleus handle is arranged on the inner side surface of the tympanic membrane and is positioned between the mucosa layer and the fiber layer. The stapes footplate is the annulus ligament which is connected to the oval window, and the incus is between the hammer and the stapes. Auditory ossicle prostheses are generally surgically implanted to replace the function of the ossicles due to disease or congenital causes.
Chinese patent CN109730809A discloses a low-stress rotatable ossicle prosthesis, which can flexibly and conveniently adjust the angle between the top disc and the connecting rod, so that the top disc can reduce the contact stress when contacting the tympanic membrane, and avoid the damage to the tympanic membrane caused by the acute angle generated when the top disc is placed obliquely. However, because the top plate and the connecting rod of the ossicle prosthesis with the structure are connected through the ball-and-socket joint, the vibration of the tympanic membrane is influenced when being transmitted to the vestibule through the ossicle prosthesis, and the postoperative hearing recovery effect of a patient is further influenced.
SUMMERY OF THE UTILITY MODEL
In order to solve the defects in the prior art, the utility model provides an auditory ossicle prosthesis, which comprises the following specific scheme:
the utility model provides an auditory ossicle prosthesis, includes the intermediate lever, the both ends of intermediate lever integrated into one piece respectively have layer board and connector, the layer board is used for connecting the tympanic membrane, the connector is used for connecting the stapes, the intermediate lever with contained angle between the layer board place plane is less than ninety degrees.
Furthermore, the included angle between the middle rod and the plane of the supporting plate is 80-85 degrees.
Furthermore, the supporting plate is of an oval structure corresponding to the shape of the tympanic membrane, and the edge of the supporting plate extends towards one side far away from the middle rod and then is bent towards the center of the supporting plate to form a supporting plate skirt.
Further, the edges of the pallet skirt are connected to each other by a plurality of reinforcing ribs.
Further, the reinforcing ribs are uniformly arranged in a crossed mode.
Further, the bottom surface shaping of connector is the plane, connector bottom surface place plane with the contained angle of intermediate lever is less than ninety degrees.
Further, the bottom surface shaping of connector is the concave surface, the position that the connector lateral wall is close to the bottom surface is seted up a plurality of grooves that communicate with the concave surface.
The utility model has the beneficial effects that:
according to the ossicle prosthesis provided by the utility model, all structures are integrally formed, the vibration effect of transferring the tympanic membrane is good, and the postoperative recovery effect of a patient is ensured.
Drawings
Figure 1 is a schematic structural view of the present invention,
figure 2 is a schematic structural view of the pallet of the present invention,
figure 3 is a cross-sectional view a-a of figure 2,
figure 4 is a schematic diagram I of the working state of the present invention,
fig. 5 is a schematic I I illustrating the operation of the present invention.
Figure number and name: 1. intermediate bar, 2, pallet, 21, pallet skirt, 22, stiffener, 3, connector, 31, groove, 4, stapes plate, 5, stapes arch.
Detailed Description
To explain the technical content, structural features, attained objects and effects of the present invention in detail, embodiments are described below in detail with reference to the accompanying drawings.
With reference to fig. 1, the ossicle prosthesis disclosed by the utility model comprises a middle rod 1, wherein two ends of the middle rod 1 are respectively and integrally formed with a supporting plate 2 and a connector 3, the supporting plate 2 is used for connecting a tympanic membrane, the connector 3 is used for connecting a stapes, and an included angle α between planes of the middle rod 1 and the supporting plate 2 is 82 °. Under the prerequisite of guaranteeing overall structure integrated into one piece, there is the contained angle in intermediate lever and layer board, more accords with the planar positional relationship of tympanic membrane plane and stapes plate in the duct.
Referring to fig. 2 and 3, the supporting plate 2 has an oval structure corresponding to the shape of the tympanic membrane, and the edge of the supporting plate 2 extends to the side away from the middle rod 1 and then bends toward the center of the supporting plate 2 to form a supporting plate skirt 21. The supporting plate is of a double-layer structure, so that the surface of the supporting plate, which is in contact with the tympanic membrane, has a certain angle self-adaptive adjustment capability, and the tympanic membrane can be ensured to be in full contact with the supporting plate.
The edges of the skirt 21 of the support plate are connected with each other by a plurality of reinforcing ribs 22 to ensure that the contact surface of the support plate with the tympanic membrane has a certain strength, thereby effectively transmitting the vibration of the tympanic membrane. In addition, the reinforcing ribs 22 are uniformly and crossly arranged, and the gaps among the reinforcing ribs can ensure that the tympanic membrane tissues can be tightly connected with the supporting plate along with growth, and can prevent perforation caused by later-stage tympanic membrane settlement into the gaps due to nonuniform gaps.
It should be noted that, in specific applications, according to the actual situation of a patient, connectors of different specifications can be selected:
as shown in fig. 4, when the stapes of a patient is seriously damaged due to pathological changes (only a stapes bottom plate is left), a bell-shaped connector 3 is selected, the bottom surface of the connector 3 is formed into a plane, the bottom surface of the connector 3 is directly opposite to the stapes bottom plate, and then the filler is slightly limited; the included angle between the plane of the bottom surface of the connector 3 and the middle rod 1 is less than ninety degrees, so that the bottom surface of the connector can be in face-to-face fit with the top surface of the stapes bottom plate (the tympanic membrane is not parallel to the plane of the stapes bottom plate in the space structure, so the included angle between the middle rod and the connector is not shown in the attached drawing).
As shown in figure 5, when the patient has less loss of the stapes (when the complete stapes arch is left), another connector 3 is selected, the bottom surface of the connector 3 is shaped into a concave surface matched with the stapes arch, and in addition, a plurality of grooves 31 communicated with the concave surface are formed in the positions, close to the bottom surface, of the side wall of the connector 3, so that the stapes arch can be directly clamped into the grooves, and the stability of the prosthesis is ensured.
Therefore, the utility model is not limited to the specific embodiments and examples, but rather, all equivalent variations and modifications are within the scope of the utility model as defined in the claims and the specification.
Claims (7)
1. An auditory ossicle prosthesis comprising a central rod (1), characterized in that: the both ends of middle pole (1) integrated into one piece respectively have layer board (2) and connector (3), layer board (2) are used for connecting the tympanic membrane, connector (3) are used for connecting the stapes, middle pole (1) with the contained angle between the plane of layer board (2) place is less than ninety degrees.
2. An ossicular prosthesis according to claim 1, wherein: the included angle between the planes of the middle rod (1) and the supporting plate (2) is 80-85 degrees.
3. An ossicular prosthesis according to claim 1, wherein: the supporting plate (2) is of an oval structure corresponding to the shape of the tympanic membrane, and the edge of the supporting plate (2) extends to one side far away from the middle rod (1) and then is bent towards the center of the supporting plate (2) to form a supporting plate skirt edge (21).
4. An ossicular prosthesis according to claim 3, wherein: the edges of the pallet skirt (21) are connected to each other by a plurality of reinforcing ribs (22).
5. An ossicular prosthesis according to claim 4, wherein: the reinforcing ribs (22) are uniformly arranged in a crossed manner.
6. An ossicular prosthesis according to claim 1, wherein: the bottom surface shaping of connector (3) is the plane, connector (3) bottom surface place plane with the contained angle of intermediate lever (1) is less than ninety degrees.
7. An ossicular prosthesis according to claim 1, wherein: the bottom surface shaping of connector (3) is the concave surface, a plurality of grooves (31) that communicate with the concave surface are seted up to the position that connector (3) lateral wall is close to the bottom surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121580819.1U CN215307037U (en) | 2021-07-12 | 2021-07-12 | Auditory ossicle prosthesis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121580819.1U CN215307037U (en) | 2021-07-12 | 2021-07-12 | Auditory ossicle prosthesis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215307037U true CN215307037U (en) | 2021-12-28 |
Family
ID=79566762
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121580819.1U Active CN215307037U (en) | 2021-07-12 | 2021-07-12 | Auditory ossicle prosthesis |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215307037U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114452035A (en) * | 2022-04-08 | 2022-05-10 | 杭州师范大学附属医院(杭州市第二人民医院) | Soft clip type artificial stapes prosthesis |
-
2021
- 2021-07-12 CN CN202121580819.1U patent/CN215307037U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114452035A (en) * | 2022-04-08 | 2022-05-10 | 杭州师范大学附属医院(杭州市第二人民医院) | Soft clip type artificial stapes prosthesis |
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