CN214761625U - Similar ring-shaped ossicle prosthesis - Google Patents
Similar ring-shaped ossicle prosthesis Download PDFInfo
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- CN214761625U CN214761625U CN202022881378.0U CN202022881378U CN214761625U CN 214761625 U CN214761625 U CN 214761625U CN 202022881378 U CN202022881378 U CN 202022881378U CN 214761625 U CN214761625 U CN 214761625U
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- bimetallic wire
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Abstract
The utility model discloses a similar annular ossicle prosthesis, which comprises a bimetallic wire hook and a connector; the upper end of the bimetallic wire hook is of a structure that two half-open circular rings with one small end and one large end are externally tangent, and the lower end of the bimetallic wire hook is a connecting part; the connector is of a cylindrical structure, and a plurality of annular grooves are formed in the outer surface of the lower end of the connector; the part of the lower end connecting part of the bimetallic wire hook is embedded in the connector. The double-metal wire hook of the auditory ossicle prosthesis can be efficiently contacted and connected with the stapes, is not easy to unhook and slide, and has stronger stability and adaptability; the connector is cylindric design, and the bottom outer edge is streamlined little radian design, can implant the more compatible link up of time with inner ear plunger. The similar annular ossicle prosthesis effectively solves the problem of vibration conduction fault of the patient.
Description
Technical Field
The utility model relates to an unexpected apparatus field especially relates to an annular ossicle prosthesis of kind.
Background
The ossicles of the middle ear are usually susceptible to damage due to disease, trauma or congenital deformity, and consist of three ossicles, also known as the ossicle chain, which in turn are: malleus, incus, stapes, which consists 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. Sound is transmitted to the inner ear by vibration of the auditory membrane to cause vibration of the ossicular chain, and mechanical waves of the sound waves are converted into electric impulses through the sensible sound of cochlear hair cells to enable the brain to perceive the sound. The activity of the ossicular chain plays a crucial role in the conduction of sound. As one of the three ossicles of the ossicular chain, the stapes, like a stirrup, is only 2.6mm to 5.5mm long and has a weight of only 2 mg to 4 mg, which is the smallest and lightest bone in the human body. The stapes is located in the middle ear cavity, externally connected to the incus, and is responsible for transmitting the sound wave vibrations to the cochlea on a very small membrane, making the sound wave audible. The crux of otosclerosis is mainly the stapes. When the damaged stapes is replaced by the ossicle prosthesis, the vibration transmitted from the tympanic membrane is partially or completely compensated and transmitted to the inner ear by the ossicle prosthesis, thereby radically curing the ear diseases caused by the vibration transmission failure.
Currently, the ossicular chain (stapes) prosthesis generally consists of a monofilament/laminar hook and a cylindrical connector, thus achieving the reconstruction of the ossicular chain. The existing ossicle prosthesis on the market is easy to cause strangulation to a contact part due to the structural design of a monofilament hook, so that the risk of osteonecrosis is caused, and the monofilament structure has poor stability when in use, is easy to cause twisting and causes the placement and displacement of ossicle, thereby increasing the probability of secondary operation; or the hook is designed to be a sheet-shaped hook structure, and compared with a bimetallic wire hook structure, the hook has the advantages of large mass, heavy structure and inflexibility.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a kind of annular ossicle prosthesis of listening. The bimetallic wire hook of the auditory ossicle prosthesis can be efficiently contacted and connected with a stapes, is not easy to unhook and slide, and has stronger stability and adaptability; the connector is designed in a cylindrical shape, the outer edge of the bottom is designed in a streamline micro-radian shape, and the connector can be more compatible with the inner ear plunger when being implanted; the similar annular ossicle prosthesis effectively solves the problem of vibration conduction failure of patients and brings good news to patients with ear diseases.
In order to solve the technical problem, the utility model discloses a following technical scheme:
an annular ossicle-like prosthesis comprising a bimetallic wire hook and a connector;
the upper end of the bimetallic wire hook is of a structure that two half-open circular rings with one small end and one large end are externally tangent, and the lower end of the bimetallic wire hook is a connecting part;
the connector is of a cylindrical structure, and a plurality of annular grooves are formed in the outer surface of the lower end of the connector;
the part of the lower end connecting part of the bimetallic wire hook is embedded in the connector.
Preferably, the joint of the upper ends of the two metal wires of the bimetallic wire hook is in the shape of 1-5 fingers.
Preferably, the bimetallic wire hook is made of titanium simple substance, titanium alloy or nickel-titanium alloy.
Preferably, the small and large half-opened rings of the bimetallic wire hook are circumscribed structures of 1/2 small half-opened rings and 3/4 large half-opened rings.
Preferably, the diameter of the small semi-open circular ring in the bimetallic wire hook is 0.02-1.0 mm; the diameter of the large semi-open circular ring in the bimetallic wire hook is 0.1-1.2 mm.
Preferably, the diameter of the small semi-open circular ring in the bimetallic wire hook is 0.05-0.5 mm; the diameter of the large semi-open circular ring in the bimetallic wire hook is 0.4-1.0 mm.
Preferably, the length of the connecting part at the lower end of the bimetallic wire hook is 0.5-3.5 mm.
Preferably, the part of the connecting part at the lower end of the bimetallic wire hook, which is embedded in the connector, is in a twist winding shape; more preferably, the length of the twist wind shape part is 0.1-5.0 mm; most preferably, the twist wind shape portion is 1.0-4.0mm in length.
Preferably, the material of the connector is one or more of polyetheretherketone, polytetrafluoroethylene and high molecular weight polyethylene.
Preferably, the connector length is 1.0-5.0 mm; more preferably, the lower cylindrical connector has a length of 1.5-4.0 mm.
Preferably, the annular grooves on the outer surface of the connector are spaced 0.1-0.5mm apart; more preferably, the annular grooves on the outer surface of the cylindrical connector are spaced 0.2-0.3mm apart.
Preferably, the outer edge of the bottom of the connector is in a streamline micro-radian design; more preferably, the bottom outer edge of the connector is 0.01-0.3mm in diameter in micro-radian; most preferably, the bottom outer edge of the lower end connector has a micro-radian diameter of 0.02-0.1 mm.
Preferably, the connector diameter is 0.2-1.0 mm; more preferably, the lower end connector has a diameter of 0.3-0.7 mm.
Any range recited in the present invention includes any numerical value between the endpoints and any sub-range comprised of any numerical value between the endpoints or any numerical value between the endpoints.
Unless otherwise specified, the raw materials of the present invention can be purchased commercially, and the equipment used in the present invention can be implemented by conventional equipment in the related art or by referring to the prior art in the related art.
Compared with the prior art, the utility model discloses following beneficial effect has:
1. the utility model, through the unique double-wire hook design, enables the auditory ossicle prosthesis to better fit with a plurality of bending extension parts of the incus process, the hammer handle or the actuator end part, and is more matched with the human tissue and is not easy to twist;
2. the utility model increases the shape of the top finger on the basis of the design of the double-metal wire hook, increases the contact point of the ossicle prosthesis and the human bone tissue, enhances the force application and further improves the stability of the hook-taking part;
3. the part of the connecting part of the bimetallic wire hook embedded in the cylindrical connector is in a twist winding shape, so that the stress point and the friction force of the bimetallic wire hook and the cylindrical connector are increased, the bimetallic wire hook and the cylindrical connector are firmer and more stable, and the risk of breakage is reduced;
4. annular grooves are carved on the outer surface of the cylindrical connector at certain intervals, so that doctors can cut corresponding lengths according to the actual conditions of patients during operation, the matching degree of the prosthesis and the patients can be improved, the adaptability is enhanced, and the wearing is more comfortable;
5. cylindric connector bottom outer edge is streamlined little radian design, can be better after the implantation link up with the plunger of inner ear, has avoided the too firm problem of contact, can effectively reduce the secondary operation incidence.
Drawings
FIG. 1 is a schematic front view of a similar annular ossicle prosthesis of the present invention;
FIG. 2 is a schematic cross-sectional view of a similar annular ossicle prosthesis of the present invention;
FIG. 3 is a schematic side view of a similar annular ossicle prosthesis of the present invention;
FIG. 4 is a schematic cross-sectional view of the quasi-annular ossicle prosthesis of FIG. 3;
fig. 5 is a schematic top view of the junction of the top portions of the two-wire hooks according to embodiment 1 of the present invention;
fig. 6 is a schematic top view of the junction of the top portions of the two-wire hooks according to embodiment 2 of the present invention;
fig. 7 is a schematic top view of the junction of the top portions of the two-wire hooks according to embodiment 3 of the present invention;
fig. 8 is a perspective view of the top connection of fig. 5.
Detailed Description
In order to illustrate the invention more clearly, the invention is further described below with reference to preferred embodiments. It is to be understood by persons skilled in the art that the following detailed description is illustrative and not restrictive, and is not to be taken as limiting the scope of the invention.
Referring to fig. 1 to 8, as one aspect of the present invention, the ring-like ossicle prosthesis of the present invention includes a double-wire hook 1 and a connector 2;
the upper end of the bimetallic wire hook 1 is of a structure that a small half ring 11 and a large half ring 12 are externally tangent, and the lower end is a connecting part 13;
the connector 2 is of a cylindrical structure, and a plurality of annular grooves 21 are formed in the outer surface of the lower end of the connector 2;
the portion of the lower end connecting portion 13 of the bimetal wire hook 1 is embedded in the connector 2.
In the present application, the term "double-wire hook" means that there are two wires in the front and back in the direction perpendicular to the paper surface, and the upper ends of the two wires are connected together in the direction perpendicular to the paper surface.
In some embodiments, the junction 14 of the upper ends of the two wires of the bi-wire hook 1 is in the shape of 1-5 fingers.
In some embodiments, the bimetallic wire hook is made of titanium, titanium alloy or nickel-titanium alloy.
In some embodiments, the small and large half rings of the bi-wire hook are circumscribed by 1/2 small half rings 11 and 3/4 large half rings 12.
In certain embodiments, the small semi-open circular ring 11 in the bi-wire hook 1 is 0.02-1.0mm in diameter; the diameter of the large semi-open circular ring 12 in the bimetallic wire hook 1 is 0.1-1.2 mm.
In certain preferred embodiments, the small semi-open circular ring in the bimetallic wire hook has a diameter of 0.05-0.5 mm; the diameter of the large semi-open circular ring in the bimetallic wire hook is 0.4-1.0 mm.
In some embodiments, the length of the lower end connecting portion 13 of the bimetal wire hook is 0.5-3.5 mm.
In some embodiments, the portion of the lower end connecting portion 13 of the bimetal wire hook 1 embedded in the cylindrical connector 2 has a twist winding shape 131; more preferably, the length of the portion of twist wind 131 is 0.1-5.0 mm; most preferably, the twist wind shape portion has a length of 1.0-4.0 mm.
In some embodiments, the material of the connector 2 is one or more of polyetheretherketone, polytetrafluoroethylene, and high molecular weight polyethylene.
In certain embodiments, the connector 2 is 1.0-5.0mm in length; more preferably, the connector length is 1.5-4.0 mm.
In some embodiments, the annular grooves 21 on the outer surface of the connector 2 are spaced 0.1-0.5mm apart; more preferably, the annular grooves on the outer surface of the connector are spaced 0.2-0.3mm apart.
In some embodiments, the bottom outer edge 22 of the connector 2 is of a streamlined micro-arc design; more preferably, the bottom outer edge of the connector 2 has a micro-radian diameter of 0.01-0.3 mm; most preferably, the bottom outer edge of the connector has a micro-arc diameter of 0.02-0.1 mm.
In certain embodiments, the connector 2 is 0.2-1.0mm in diameter; more preferably, the connector diameter is 0.3-0.7 mm.
The utility model relates to a similar annular ossicle prosthesis, which is constructed to replace or connect with at least one element of an ossicle chain. When the utility model is applied, the double-wire hook stably hooks a plurality of bending and extending parts of the anvil process, the hammer handle or the actuator end part, and the double-wire hook is matched with the unique structural design to ensure that the grabbing is firmer and more reliable and is not easy to twist; the contact part of the upper end bimetallic wire hook and the lower end connector is of a twist-shaped structure and is embedded in the connector, so that the connection is tighter and is not easy to loosen; the connector of lower extreme is one, two kinds or three kinds in polyether ether ketone, polytetrafluoroethylene, high molecular weight polyethylene, and biocompatibility is good, and its bottom and human tissue plunger contact during the application, and the design of the streamlined micro radian of bottom outer edge makes the junction more compatible, has avoided the too firm problem of contact to effectively reduce the secondary operation incidence.
Example 1
Referring to fig. 1 to 8, the present invention provides a similar annular ossicle prosthesis for replacing or connecting at least one element of ossicle chain, including a bimetallic wire hook and a connector. The double-metal wire hook is made of metal titanium, the diameter of a small semi-open circular ring at the upper end of the double-metal wire hook is 0.3mm, the diameter of a large semi-open circular ring at the upper end of the double-metal wire hook is 0.6mm, the top of the double-metal wire hook is of a 3-finger structure, and the visible length of a straight line part of the double-metal wire hook at the upper end is 0.5 mm; the lower end cylindrical connector is made of polyether-ether-ketone materials, the diameter of the lower end cylindrical connector is 0.7mm, and the distance between the annular grooves in the outer surface is 0.2 mm. The contact part of the upper end bimetallic wire hook and the lower end cylindrical connector is in a twist winding shape, the length of the winding part is 1.0mm, the length of the connector is 3.0mm, and the diameter of the outer edge of the bottommost part along a streamline micro radian is 0.05 mm.
Example 2
Referring to fig. 1 to 8, the present invention provides a similar ring-shaped ossicular prosthesis for replacing or connecting at least one element of an ossicular chain, the prosthesis comprising a bi-wire hook and a connector. The double-metal wire hook is made of titanium-nickel alloy, the diameter of a small half-open circular ring at the upper end of the double-metal wire hook is 0.5mm, the diameter of a large half-open circular ring at the upper end of the double-metal wire hook is 1.0mm, the top of the double-metal wire hook is of a 5-finger structure, and the visible length of the straight part of the double-metal wire hook at the upper end is 3.5 mm; the lower end cylindrical connector is made of polytetrafluoroethylene, the diameter of the lower end cylindrical connector is 0.5mm, and the distance between the annular grooves on the outer surface of the lower end cylindrical connector is 0.3 mm. The contact part of the upper end bimetallic wire hook and the lower end cylindrical connector is in a twist winding shape, the length of the winding part is 2.0mm, the length of the connector is 3.5mm, and the diameter of the outer edge of the bottommost part along a streamline micro-radian is 0.1 mm.
Example 3
Referring to fig. 1 to 8, the present invention provides an annular ossicular prosthesis for replacing or connecting at least one element of an ossicular chain, the prosthesis including a bi-wire hook and a connector. The double-metal wire hook is made of titanium-nickel alloy, the diameter of a small half-open circular ring at the upper end of the double-metal wire hook is 0.05mm, the diameter of a large half-open circular ring at the upper end of the double-metal wire hook is 0.4mm, the top of the double-metal wire hook is of a 1-finger structure, and the visible length of the straight part of the double-metal wire hook at the upper end is 1.5 mm; the lower end cylindrical connector is made of a mixed material of polytetrafluoroethylene, polyether-ether-ketone and high molecular weight polyethylene, the diameter of the lower end cylindrical connector is 0.3mm, and the distance between the annular grooves on the outer surface of the lower end cylindrical connector is 0.25 mm. The contact part of the upper end bimetallic wire hook and the lower end cylindrical connector is in a twist winding shape, the length of the winding part is 3.0mm, the length of the connector is 4.0mm, and the diameter of the outer edge of the bottommost part along a streamline micro radian is 0.02 mm.
It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations to the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. Not all embodiments are exhaustive. All obvious changes or variations led out by the technical scheme of the utility model are still in the protection scope of the utility model.
Claims (10)
1. An annular ossicular prosthesis, comprising: comprises a bimetallic wire hook and a connector;
the upper end of the bimetallic wire hook is of a structure that two half-open circular rings with one small end and one large end are externally tangent, and the lower end of the bimetallic wire hook is a connecting part;
the connector is of a cylindrical structure, and a plurality of annular grooves are formed in the outer surface of the lower end of the connector;
the part of the lower end connecting part of the bimetallic wire hook is embedded in the connector.
2. The ring-like auditory ossicle prosthesis of claim 1 wherein: the joint of the upper ends of the two metal wires of the double-metal wire hook is in the shape of 1-5 fingers.
3. The ring-like auditory ossicle prosthesis of claim 1 wherein: the bimetallic wire hook is made of titanium simple substance, titanium alloy or nickel-titanium alloy.
4. The ring-like auditory ossicle prosthesis of claim 1 wherein: the small half-opened ring and the large half-opened ring of the bimetallic wire hook are in an circumscribed structure of 1/2 small half-opened rings and 3/4 large half-opened rings.
5. The ring-like auditory ossicle prosthesis of claim 1 wherein: the diameter of a small semi-open circular ring in the bimetallic wire hook is 0.02-1.0 mm; the diameter of the large semi-open circular ring in the bimetallic wire hook is 0.1-1.2 mm.
6. An ossicular-like prosthesis according to claim 5, wherein: the diameter of a small semi-open circular ring in the bimetallic wire hook is 0.05-0.5 mm; the diameter of a large semi-open circular ring in the bimetallic wire hook is 0.4-1.0 mm;
the length of the connecting part at the lower end of the bimetallic wire hook is 0.5-3.5 mm.
7. The ring-like auditory ossicle prosthesis of claim 1 wherein: the part of the connecting part at the lower end of the bimetallic wire hook, which is embedded in the cylindrical connector, is in a twist winding shape; the length of the twist wound shape portion is 0.1-5.0 mm.
8. The ring-like auditory ossicle prosthesis of claim 1 wherein: the connector is made of one of polyether-ether-ketone, polytetrafluoroethylene and high molecular weight polyethylene.
9. The ring-like auditory ossicle prosthesis of claim 1 wherein: the length of the cylindrical connector is 1.0-5.0 mm; the annular grooves on the outer surface of the connector are spaced at 0.1-0.5mm intervals.
10. The ring-like auditory ossicle prosthesis of claim 1 wherein: the outer edge of the bottom of the connector is designed in a streamline micro-radian mode; the diameter of the outer edge of the bottom of the connector is 0.01-0.3 mm; the diameter of the connector is 0.2-1.0 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022881378.0U CN214761625U (en) | 2020-12-04 | 2020-12-04 | Similar ring-shaped ossicle prosthesis |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022881378.0U CN214761625U (en) | 2020-12-04 | 2020-12-04 | Similar ring-shaped ossicle prosthesis |
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| CN214761625U true CN214761625U (en) | 2021-11-19 |
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| CN202022881378.0U Active CN214761625U (en) | 2020-12-04 | 2020-12-04 | Similar ring-shaped ossicle prosthesis |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112402055A (en) * | 2020-12-04 | 2021-02-26 | 柏为（武汉）医疗科技股份有限公司 | Similar ring-shaped ossicle prosthesis |
| 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 |
-
2020
- 2020-12-04 CN CN202022881378.0U patent/CN214761625U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112402055A (en) * | 2020-12-04 | 2021-02-26 | 柏为（武汉）医疗科技股份有限公司 | Similar ring-shaped ossicle prosthesis |
| 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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