CN112402055A - Similar ring-shaped ossicle prosthesis - Google Patents
Similar ring-shaped ossicle prosthesis Download PDFInfo
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- CN112402055A CN112402055A CN202011406763.8A CN202011406763A CN112402055A CN 112402055 A CN112402055 A CN 112402055A CN 202011406763 A CN202011406763 A CN 202011406763A CN 112402055 A CN112402055 A CN 112402055A
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- wire hook
- connector
- bimetallic wire
- cylindrical connector
- diameter
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- 210000003094 ear ossicle Anatomy 0.000 claims abstract description 11
- 229910052751 metal Inorganic materials 0.000 claims description 20
- 239000002184 metal Substances 0.000 claims description 20
- 238000004804 winding Methods 0.000 claims description 12
- 239000004696 Poly ether ether ketone Substances 0.000 claims description 6
- 229920002530 polyetherether ketone Polymers 0.000 claims description 6
- -1 polytetrafluoroethylene Polymers 0.000 claims description 6
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 6
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 6
- 239000004705 High-molecular-weight polyethylene Substances 0.000 claims description 5
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 4
- 239000010936 titanium Substances 0.000 claims description 4
- 229910052719 titanium Inorganic materials 0.000 claims description 4
- 229910001069 Ti alloy Inorganic materials 0.000 claims description 3
- 229910001000 nickel titanium Inorganic materials 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 2
- 210000001050 stape Anatomy 0.000 abstract description 10
- 210000003027 ear inner Anatomy 0.000 abstract description 7
- 239000007943 implant Substances 0.000 abstract 1
- 239000000463 material Substances 0.000 description 4
- 208000027418 Wounds and injury Diseases 0.000 description 3
- 210000000959 ear middle Anatomy 0.000 description 3
- 210000001785 incus Anatomy 0.000 description 3
- 229910000990 Ni alloy Inorganic materials 0.000 description 2
- HZEWFHLRYVTOIW-UHFFFAOYSA-N [Ti].[Ni] Chemical compound [Ti].[Ni] HZEWFHLRYVTOIW-UHFFFAOYSA-N 0.000 description 2
- 210000000988 bone and bone Anatomy 0.000 description 2
- 208000032625 disorder of ear Diseases 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 210000001519 tissue Anatomy 0.000 description 2
- 206010003497 Asphyxia Diseases 0.000 description 1
- 206010010356 Congenital anomaly Diseases 0.000 description 1
- 241000878128 Malleus Species 0.000 description 1
- 206010031264 Osteonecrosis Diseases 0.000 description 1
- 210000003030 auditory receptor cell Anatomy 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 210000004556 brain Anatomy 0.000 description 1
- 210000003477 cochlea Anatomy 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 210000002331 malleus Anatomy 0.000 description 1
- 206010033103 otosclerosis Diseases 0.000 description 1
- 210000004049 perilymph Anatomy 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 230000008733 trauma Effects 0.000 description 1
- 210000003454 tympanic membrane Anatomy 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/18—Internal ear or nose parts, e.g. ear-drums
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/18—Internal ear or nose parts, e.g. ear-drums
- A61F2002/183—Ear parts
Landscapes
- Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Pulmonology (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Prostheses (AREA)
Abstract
The invention 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 bimetallic 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 invention relates to the field of unexpected instruments, in particular to a similar annular ossicle prosthesis.
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.
Disclosure of Invention
The invention aims to solve the technical problem of providing a similar annular ossicle prosthesis. 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 problems, the invention adopts the 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 half ring and the large half ring of the bimetallic wire hook are in an circumscribed structure of 1/2 small half rings and 3/4 large half rings.
Preferably, the diameter of a small half open loop in the bimetallic wire hook is 0.02-1.0 mm; the diameter of a large half open loop in the bimetallic wire hook is 0.1-1.2 mm.
Preferably, the diameter of the small half-open loop in the bimetallic wire hook is 0.05-0.5 mm; the diameter of a large half open loop 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 cylindrical connector, is in a twist winding shape; more preferably, the length of the twist-like wound part is 0.1 to 5.0 mm; most preferably, the length of the twisted winding is 1.0-4.0 mm.
Preferably, the material of the cylindrical connector is one or more of polyetheretherketone, polytetrafluoroethylene and high molecular weight polyethylene.
Preferably, the cylindrical connector is 1.0-5.0mm in length; 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 cylindrical 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 cylindrical connector is in a streamline micro-radian design; more preferably, the bottom outer edge of the cylindrical connector has a micro-radian diameter of 0.01-0.3 mm; most preferably, the bottom outer edge of the lower cylindrical connector has a micro-arc diameter of 0.02-0.1 mm.
Preferably, the cylindrical connector has a diameter of 0.2-1.0 mm; more preferably, the lower cylindrical connector has a diameter of 0.3-0.7 mm.
Any range recited herein is intended to include the endpoints and any number between the endpoints and any subrange subsumed therein or defined therein.
The starting materials of the present invention are commercially available, unless otherwise specified, and the equipment used in the present invention may be any equipment conventionally used in the art or may be any equipment known in the art.
Compared with the prior art, the invention has the following beneficial effects:
1. the invention enables the ossicle prosthesis to be better fit with a plurality of bending and extending parts of the incus process, the hammer handle or the actuator end part through the unique double-metal wire hook design, and the ossicle prosthesis is more fit with the tissues of the human body and is not easy to twist;
2. on the basis of the design of the double-metal-wire hook, the shape of the top finger is increased, so that the contact points of the ossicle prosthesis and the human bone tissue are increased, the force is enhanced, and the stability of the hooked part is further improved;
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 invention;
FIG. 2 is a schematic cross-sectional view of a similar annular ossicle prosthesis of the invention;
FIG. 3 is a schematic side view of a quasi-annular ossicle prosthesis of the invention;
FIG. 4 is a schematic cross-sectional view of the quasi-annular ossicle prosthesis of FIG. 3;
FIG. 5 is a top view of the bi-wire hook top connection of example 1 of the present invention;
FIG. 6 is a schematic top view of the bi-wire hook top connection of example 2 of the present invention;
FIG. 7 is a top view of the bi-wire hook top connection of example 3 of the present invention;
fig. 8 is a perspective view of the top connection of fig. 5.
Detailed Description
In order to more clearly illustrate the invention, the invention is further described below in connection with 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, a similar annular ossicle prosthesis of the present invention comprises a bimetal wire hook 1 and a connector 2;
the upper end of the bimetallic wire hook 2 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-open circular rings of the bimetallic hook are circumscribed by 1/2 small half-open rings 11 and 3/4 large half-open rings 12.
In some embodiments, the small half-open loop 11 in the bimetallic wire hook 1 is 0.02-1.0mm in diameter; the diameter of a majority of open rings 12 in the bimetallic wire hook 1 is 0.1-1.2 mm.
In certain preferred embodiments, the small half-open loop in the bimetallic wire hook has a diameter of 0.05-0.5 mm; the diameter of a large half open loop 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 twist-like wound shape portion 131 is 0.1 to 5.0 mm; most preferably, the length of the part of the twist-wound shape is 1.0 to 4.0 mm.
In some embodiments, the material of the cylindrical connector 2 is one or more of polyetheretherketone, polytetrafluoroethylene, and high molecular weight polyethylene.
In certain embodiments, the cylindrical connector 2 is 1.0-5.0mm in length; more preferably, the lower cylindrical connector has a length of 1.5-4.0 mm.
In some embodiments, the annular grooves 21 on the outer surface of the cylindrical connector 2 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.
In some embodiments, the bottom outer edge 22 of the cylindrical connector 2 is of a streamlined micro-arc design; more preferably, the bottom outer edge of the cylindrical connector 2 has a micro-arc diameter of 0.01-0.3 mm; most preferably, the bottom outer edge of the lower cylindrical connector has a micro-arc diameter of 0.02-0.1 mm.
In certain embodiments, the cylindrical connector 2 is 0.2-1.0mm in diameter; more preferably, the lower cylindrical connector has a diameter of 0.3-0.7 mm.
The invention relates to a ring-like ossicular prosthesis, which is designed to replace or connect at least one element of the ossicular chain. When the double-wire hook is applied, the double-wire hook stably hooks a plurality of bent and extended 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 of the double wires, so that the double-wire hook is firmer and more reliable in grabbing 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 ring-shaped ossicular prosthesis for replacing or connecting at least one element of the ossicular chain, including a bimetal 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 figures 1 to 8, the present invention provides an auditory ossicle prosthesis of the kind used to replace or connect at least one element of the ossicle 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. 1-8, the present invention provides an annular ossicular prosthesis for replacing or completing at least one element of the 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 should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit 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 and modifications which are obvious to the technical scheme of the invention are covered by the protection scope of the invention.
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 ring and the large half ring of the bimetallic wire hook are in an external tangent structure of 1/2 small half rings and 3/4 large half rings.
5. The ring-like auditory ossicle prosthesis of claim 1 wherein: the diameter of a small half open loop in the bimetallic wire hook is 0.02-1.0 mm; the diameter of a large half open loop 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 half open loop in the bimetallic wire hook is 0.05-0.5 mm; the diameter of a large half open loop 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.
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; more preferably, the length of the twist-like wound part is 0.1 to 5.0 mm; most preferably, the length of the twisted winding is 1.0-4.0 mm.
8. The ring-like auditory ossicle prosthesis of claim 1 wherein: the cylindrical connector is made of one or more 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; 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 cylindrical 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.
10. The ring-like auditory ossicle prosthesis of claim 1 wherein: the outer edge of the bottom of the cylindrical connector is designed into a streamline micro radian; more preferably, the bottom outer edge of the cylindrical connector has a micro-radian diameter of 0.01-0.3 mm; most preferably, the diameter of the outer edge of the bottom of the lower cylindrical connector is 0.02-0.1mm in micro radian;
preferably, the cylindrical connector has a diameter of 0.2-1.0 mm; more preferably, the lower cylindrical connector has a diameter of 0.3-0.7 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011406763.8A CN112402055A (en) | 2020-12-04 | 2020-12-04 | Similar ring-shaped ossicle prosthesis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011406763.8A CN112402055A (en) | 2020-12-04 | 2020-12-04 | Similar ring-shaped ossicle prosthesis |
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| CN112402055A true CN112402055A (en) | 2021-02-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011406763.8A Pending CN112402055A (en) | 2020-12-04 | 2020-12-04 | Similar ring-shaped ossicle prosthesis |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113385666A (en) * | 2021-05-19 | 2021-09-14 | 柏为（武汉）医疗科技股份有限公司 | Preparation method of artificial ossicle made of titanium |
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| DE202007002653U1 (en) * | 2007-02-23 | 2007-04-19 | Heinz Kurz Gmbh Medizintechnik | Prosthesis for auditory oscicle, comprises holding loop touching bone at three points |
| DE202009004715U1 (en) * | 2009-04-10 | 2009-06-10 | Heinz Kurz Gmbh Medizintechnik | Length variable auditory ossicle prosthesis |
| US20120197394A1 (en) * | 2011-01-29 | 2012-08-02 | Robert Vincent | Auditory ossicle prosthesis with stabiliser element |
| US20150039088A1 (en) * | 2012-03-19 | 2015-02-05 | Mor Research Applications Ltd | Middle ear prosthesis |
| US20150045883A1 (en) * | 2012-09-23 | 2015-02-12 | Mark Matthew Scheurer | Middle Ear Prosthesis with Recesses for Applicator Engagement |
| CN104939948A (en) * | 2014-03-31 | 2015-09-30 | 海因茨·库兹医疗技术有限责任公司 | Ossicular prosthesis having a longitudinally perforated bight |
| CN108472132A (en) * | 2015-09-25 | 2018-08-31 | 恩特普斯公司 | The auditory ossicle prosthesis of adjustable length with low profile elastomeric joint |
| WO2017138823A1 (en) * | 2016-02-08 | 2017-08-17 | Instytut Fizjologii I Patologii Słuchu | Auditory ossicles prosthesis |
| CN109925093A (en) * | 2019-04-11 | 2019-06-25 | 四川华曙图灵增材制造技术有限责任公司 | Phonophore fixes bracket |
| CN214761625U (en) * | 2020-12-04 | 2021-11-19 | 柏为（武汉）医疗科技股份有限公司 | Similar ring-shaped ossicle prosthesis |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113385666A (en) * | 2021-05-19 | 2021-09-14 | 柏为（武汉）医疗科技股份有限公司 | Preparation method of artificial ossicle made of titanium |
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