CN115429497B - Artificial cervical intervertebral disc barb fixation device and artificial cervical intervertebral disc prosthesis - Google Patents
Artificial cervical intervertebral disc barb fixation device and artificial cervical intervertebral disc prosthesisInfo
- Publication number
- CN115429497B CN115429497B CN202211041114.1A CN202211041114A CN115429497B CN 115429497 B CN115429497 B CN 115429497B CN 202211041114 A CN202211041114 A CN 202211041114A CN 115429497 B CN115429497 B CN 115429497B
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- China
- Prior art keywords
- barb
- plate
- barb structure
- sliding
- intervertebral disc
- Prior art date
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- 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
- A61F2/30—Joints
- A61F2/44—Joints for the spine, e.g. vertebrae, spinal discs
- A61F2/442—Intervertebral or spinal discs, e.g. resilient
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- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Neurology (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (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 provides an artificial cervical disc barb fixing device. The device includes first barb structure and at least one second barb structure that sets up on first barb structure surface, and the second barb structure includes mounting and protruding thorn, and protruding thorn is including the felting needle and the multiunit barb hook of vertical setting, and the top protrusion of felting needle is in the top setting of mounting when initial state, and the mounting is inside to be equipped with drive assembly, and the outside removal and the outside that makes at least one set of barb hook be located the mounting of the drive assembly ability drive protruding thorn to the mounting are acted on to the top compressive force of second barb structure. Therefore, after the prosthesis is implanted, under the action of the tension of structural tissues around the cervical vertebra of a patient and the gravity of the cervical vertebra and the head, the first barb structure and the second barb structure are pressed to penetrate into the upper vertebral body and the lower vertebral body, the barb structure is penetrated to the outside to move under the action of the pressure, and at least one group of barb hooks are positioned outside the fixing piece to penetrate into the bone of the adjacent vertebral body to form barbs, so that the immediate stability of the bone tissue is improved.
Description
Technical Field
The invention relates to the technical field of artificial cervical disc prostheses, in particular to an artificial cervical disc barb fixing device and an artificial cervical disc prosthesis.
Background
Cervical spondylosis is an age-related chronic disease based on degeneration of the intervertebral disc, exhibiting a tendency to younger with changes in lifestyle. Significant economic investment in the treatment of the disease and loss of labor due to the disease also create a significant socioeconomic burden. At present, the artificial cervical disc replacement operation has a satisfactory clinical effect, and the operation mode is to place an artificial cervical disc prosthesis with an activity function in situ after removing a diseased intervertebral disc, so that the height of an intervertebral space is maintained, the activity of the segment is maintained, and compared with the traditional anterior cervical fusion operation, the artificial cervical disc replacement operation has the advantages of maintaining the activity of the cervical vertebra, recovering the physiological function of the cervical vertebra and hopefully relieving the degeneration of adjacent segments.
However, although the artificial cervical disc replacement has good clinical effects, there are still problems of sinking, loosening, and shifting of the prosthesis from the early and middle term results. The artificial intervertebral disc prosthesis is used as an internal object, and is similar to other internal objects in stomatology or orthopaedics, and the stability of the artificial intervertebral disc prosthesis is a key for determining the success or failure of surgical treatment. The stability of the implant refers to no obvious relative movement between the implant and bone tissue at a spatial position, including both immediate stability and long-term stability, provided that the implant is tightly connected to the bone tissue. Immediate stability refers to the stabilization of the implant in spatial position by mechanical connection with bone immediately and early after surgery, which is related to the design of the implant, the surgical procedure and the characteristics of the bone, good immediate stability being an important condition for the implant to reach long-term stability.
The immediate stability construction of the current artificial cervical disc prosthesis mainly depends on the following modes of vertical ridge, anchor, keel and reverse step. For artificial cervical disc prostheses, immediate stability is of paramount importance, and if the stability is insufficient, displacement and prolapse of the prosthesis often occur, the esophagus may be pressed forward, and spinal nerves may be compressed backward, with very serious consequences. Both discover and mobi-c in existing prostheses have been reported to exhibit the above-described problems many times. The design with better stability at present for the keels can damage the bone quality of the vertebral body too much because of pursuing immediate and tight fixation, so that the vertebral body is split (iatrogenic fracture).
Based on this, it is desirable to provide a device that does not unduly disrupt the bone of the vertebral body while at the same time ensuring that the end plates provide adequate immediate stability to the prosthesis as a whole.
Disclosure of Invention
The invention aims to provide an artificial cervical disc barb fixing device which aims to solve the technical problems that an artificial cervical disc prosthesis in the prior art is insufficient in immediate stability or excessive vertebral bone needs to be destroyed. The preferred technical solutions of the technical solutions provided by the present invention can produce a plurality of technical effects described below.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the invention provides an artificial cervical disc barb fixing device, which comprises a first barb structure and at least one second barb structure arranged on the surface of the first barb structure,
The second barb structure comprises a fixing piece and a protruding thorn, the protruding thorn comprises a puncture needle which is vertically arranged and a plurality of groups of barb hooks which are arranged at intervals from top to bottom along the length direction of the puncture needle, when in an initial state, the top of the puncture needle protrudes out of the top of the fixing piece,
The inside drive assembly that is equipped with of mounting, drive assembly with the bottom of protruding thorn is connected, and in the top of second barb structure receives the pressure effect, drive assembly can drive protruding thorn to the outside of mounting is removed and makes at least one set of barb hook is located the outside of mounting.
According to a preferred embodiment, the fixing member has a cylindrical structure, a cavity allowing the spike to move up and down is provided in the fixing member in the longitudinal direction of the fixing member, a pallet is provided at the bottom of the spike, and the driving assembly is connected to the pallet.
According to a preferred embodiment, at least two drive assembly limiting structures are arranged inside the fixing piece and around the circumference of the supporting plate;
The driving assembly comprises a sliding piece, a locking pull rod and an extension spring, wherein a first sliding groove is formed in the sliding piece, one end of the locking pull rod is movably connected to the bottom of the limiting structure of the driving assembly, the other end of the locking pull rod can move in the first sliding groove, a first fixing column is arranged on the upper portion of the limiting structure of the driving assembly, a second fixing column is arranged on the top of the sliding piece, and two ends of the extension spring are respectively connected between the first fixing column and the second fixing column.
According to a preferred embodiment, the first chute comprises a curved groove part at the top and a vertical groove part communicated with the curved groove part, wherein the top of the vertical groove part is communicated with one side of the curved groove part, the bottom of the vertical groove part extends downwards vertically, and the bottommost part of the curved groove part is lower than the top opening part of the vertical groove part.
According to a preferred embodiment, the drive assembly limit structure comprises a bottom plate, a limit plate positioned on the outer side and a slide rail assembly positioned on the inner side, wherein the limit plate and the slide rail assembly are arranged on the bottom plate at intervals to form a space for limiting the tension spring and the sliding piece between the limit plate and the slide rail assembly, the slide rail assembly comprises a stop piece positioned above and a slide rail positioned below, and the height of the surface of the stop piece protruding out of the bottom plate is larger than that of the surface of the slide rail protruding out of the bottom plate.
According to a preferred embodiment, a second sliding groove is arranged at a contact position of the sliding piece corresponding to the sliding rail, and the second sliding groove can be arranged on the sliding rail in a sliding manner and moves upwards along the sliding rail under the action of the tension spring;
A fourth sliding groove is formed in the bottom plate and located at the inner side of the sliding rail, and a sliding block matched with the fourth sliding groove is arranged at the bottom of the sliding piece;
The sliding plate is formed on the upper portion of the inner side of the sliding piece, the limiting block is arranged at the top end of the sliding plate, the third sliding groove allowing the sliding plate and the limiting block to move is formed on the bottom plate, and a space for limiting the supporting plate is formed between the limiting block and the top of the sliding piece.
According to a preferred embodiment, a cone connector is formed at the connection between the support plate and the slider, the cone connector is in a triangular cone shape, and an inclined surface consistent with the edge of the cone connector is formed at the top of one surface of the slider facing the support plate, so that the support plate is abutted to the inclined surface at the top of the slider through the outer edge of the cone connector, and the limiting block is abutted to the top surface of the cone connector.
According to a preferred embodiment, a limiting hole is formed in the bottom of the bottom plate, and the bottom of the locking pull rod is movably limited in the limiting hole;
When the second barb structure is in an initial state, the top of the locking pull rod is limited at the bottommost part of the curved groove part, the extension spring is in a stretching state, and the supporting plate and the barb hook of the thorn are limited in the cavity.
According to a preferred embodiment, the first barb structure comprises a cylindrical barb, a cylindrical barb with an inclined surface, a cone-shaped barb or a continuous or discontinuous toothed barb structure, wherein the bottom of the second barb structure is embedded in the first barb structure and the top of the second barb structure is protruded out of the surface of the first barb structure.
The invention also provides an artificial cervical disc prosthesis, which comprises an upper prosthesis plate, a lower prosthesis plate and the artificial cervical disc barb fixing device, wherein the artificial cervical disc barb fixing devices are respectively arranged on the surfaces of the upper prosthesis plate and the lower prosthesis plate.
Based on the technical scheme, the artificial cervical disc barb fixing device provided by the invention has at least the following technical effects:
The application discloses an artificial cervical disc barb fixing device which comprises a first barb structure and at least one second barb structure arranged on the surface of the first barb structure, wherein the second barb structure comprises a fixing piece and a protruding thorn, the protruding thorn comprises a vertically arranged pricking needle and a plurality of groups of barb hooks which are arranged at intervals from top to bottom along the length direction of the pricking needle, in an initial state, the top of the pricking needle protrudes out of the top of the fixing piece, a driving assembly is arranged in the fixing piece and is connected with the bottom of the protruding thorn, and the driving assembly can drive the protruding thorn to move towards the outer side of the fixing piece and enable at least one group of barb hooks to be positioned outside the fixing piece under the action of pressure on the top of the second barb structure. Therefore, the barb fixing device is arranged on the upper surface and the lower surface of the end plate of the artificial cervical intervertebral disc prosthesis, in the cervical vertebra operation, medical staff uses a special spreader to spread two vertebral bodies, normal sections of a patient are restored, and the artificial cervical intervertebral disc prosthesis with the barb fixing device is implanted in a corresponding height model, therefore, after the artificial cervical intervertebral disc prosthesis is implanted, under the action of pulling force of structural tissues around the cervical vertebra of the patient, such as muscle tissues and ligament tissues, and the action of gravity of the cervical vertebra and the head after standing, the upper vertebral body and the lower vertebral body of the artificial cervical intervertebral disc prosthesis are implanted to squeeze the middle artificial prosthesis, at the moment, the first barb structure and the second barb structure are under the action of pressure to pierce into the upper vertebral body and the lower vertebral body, meanwhile, a driving component in the second barb structure under the action of pressure drives the barb to move outwards, and at least one group of barb hooks are positioned outside bone of a fixing piece to form barbs in bone of adjacent vertebral bodies, the instant stability with bone tissues is increased, and meanwhile, the barb fixing device of the application cannot damage excessive bone bodies. Whereas the instant fixation structure of the prior art does not include the second barb structure of the present application, the barb fixation structure of the present application can reduce the extent of damage to the bone of the vertebral body in a relatively small range when achieving the same fixation strength as compared to the instant fixation structure of the prior art.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Figure 1 is a schematic perspective view of a second barb configuration in the barb fixation device of the present invention;
figure 2 is a schematic view of the internal structure of a second barb configuration in the barb fixation of the present invention in an initial state;
figure 3 is a rear view of the slider in the second barb configuration of the barb fixation of the present invention;
Figure 4 is a schematic view of the barb fixation device of the present invention with the second barb structure being forced outwardly by pressure;
figure 5 is a schematic view of the structure of one application of the barb fixation device of the present invention.
In the figure, 1-first barb structure, 2-second barb structure, 3-prosthesis upper plate, 4-prosthesis lower plate, 20-cavity, 21-fastener, 22-spur, 221-needle, 222-barb hook, 223-pallet, 230-stopper, 231-slider, 232-locking pull rod, 233-first chute, 234-second fixation column, 235-first fixation column, 236-extension spring, 237-slide rail, 238-stopper, 239-third chute, 240-vertebral body connector, 241-stopper, 242-base plate, 243-stopper hole, 244-fourth chute, 245-second chute, 246-slider, 2331-curved chute portion, 2332-vertical chute portion.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, based on the examples herein, which are within the scope of the invention as defined by the claims, will be within the scope of the invention as defined by the claims.
In the description of the present invention, it should be noted that, unless otherwise indicated, the meaning of "plurality" means two or more, and the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, integrally connected, mechanically connected, electrically connected, directly connected, or indirectly connected via an intermediary. The specific meaning of the above terms in the present invention can be understood as appropriate by those of ordinary skill in the art.
The technical scheme of the application is described in detail below with reference to the attached drawings.
Example 1
The embodiment provides an artificial cervical disc barb fixing device, which comprises a first barb structure 1 and at least one second barb structure 2 arranged on the surface of the first barb structure 1. Preferably, the first barb structure 1 and the second barb structure 2 are integrally provided on the endplate surface of an artificial cervical disc prosthesis. As shown in fig. 1 and 2, the second barb structure 2 includes a fixing element 21 and a protruding thorn 22, and the protruding thorn 22 includes a vertically arranged lancet 221 and a plurality of groups of barb hooks 222 arranged at intervals from top to bottom along the length direction of the lancet 221. In the initial state, the top of the lancet 221 protrudes from the top of the fixing member 21. Preferably, the barb hook 222 is inclined along the direction of movement of the barb 22 so that it can move only in a forward direction. The fixing member 21 is internally provided with a driving assembly which is connected with the bottom of the barb 22 and which is capable of driving the barb 22 to move towards the outside of the fixing member 21 and to locate at least one set of barb hooks 222 at the outside of the fixing member 21 when the top of the second barb structure 2 is subjected to pressure. In the cervical vertebra operation, medical staff uses a special spreader to spread two vertebral bodies, normal sections of a patient are restored, and an artificial cervical intervertebral disc prosthesis with a barb fixing device is implanted in a corresponding height model, so that after the prosthesis is implanted, under the action of pulling force of structural tissues around the cervical vertebra of the patient, such as muscle tissues and ligament tissues, and the action of gravity of the cervical vertebra and the head after standing, the upper and lower vertebral bodies of the implanted prosthesis can squeeze the artificial prosthesis in the middle, at the moment, the first barb structure and the second barb structure are under the action of pressure to penetrate into the upper and lower vertebral bodies, and at the same time, a driving component in the second barb structure under the action of pressure can drive the barb to move outwards to enable at least one group of barb hooks to be positioned outside the fixing piece to penetrate into bones of adjacent vertebral bodies so as to form barbs, the immediate stability with the bone tissues is improved, and meanwhile, the barb fixing device of the invention can not destroy excessive bone of the vertebral bodies.
Further preferably, as shown in fig. 1and 2, the fixing member 21 has a cylindrical structure, a cavity 20 allowing the spike 22 to move up and down is provided inside and along the longitudinal direction of the fixing member 21, a supporting plate 223 is provided at the bottom of the spike 221, and the driving assembly is connected to the supporting plate 223. And then under the effect of second barb structure received the pressure, drive assembly drives layer board and the outward removal of spike under the effect of pressure in order to pierce in the sclerotin of adjacent centrum.
It is further preferred that at least two driving assembly limiting structures are provided inside the fixing member 21 and around the circumference of the pallet 223, the driving assembly limiting structures being used for positioning the driving assemblies. Preferably, as shown in fig. 2, the driving assembly includes a sliding member 231, a locking pull rod 232 and an extension spring 236, wherein a first sliding groove 233 is formed on the sliding member 231, one end of the locking pull rod 232 is movably connected to the bottom of the limiting structure of the driving assembly, and the other end of the locking pull rod can move in the first sliding groove. A first fixing column 235 is arranged at the upper part of the limiting structure of the driving assembly, a second fixing column 234 is arranged at the top of the sliding part 231, and two ends of the extension spring 236 are respectively connected between the first fixing column 235 and the second fixing column 234. Preferably, the second fixing post 234 may slide downward or upward with the slider 231. Preferably, the distance between the first and second fixing posts 235 and 234 ensures that the tension spring 236 is always in a stretched state.
Further preferably, the first chute 233 includes a curved groove portion 2331 at the top and a vertical groove portion 2332 communicating with the curved groove portion 2331, wherein the top of the vertical groove portion 2332 communicates with one side of the curved groove portion 2331, the bottom of the vertical groove portion 2332 extends vertically downward, and the bottommost position of the curved groove portion 2331 is lower than the top opening of the vertical groove portion 2332. Therefore, when the protrusion 22 is in the initial state, the end of the locking pull rod 232 is locked at the bottommost of the curved groove portion 2331, and when pressure is applied, the protrusion 22 and the pallet 223 are pressed to the downward pressure of the slider 231, so that the end of the locking pull rod enters the vertical groove portion 2332 through the curved groove portion 2331 and slides down the vertical groove portion 2332, at this time, the slider 231 is unlocked, and the pallet 223 and the protrusion 22 are driven to move to the outside of the fixture under the action of the extension spring 236.
Further preferably, the driving assembly limiting structure comprises a bottom plate 242, an outside limiting plate 241 and an inside sliding rail assembly, wherein the limiting plate 241 and the sliding rail assembly are arranged on the bottom plate 242 at intervals to form a space for limiting the tension spring 236 and the sliding piece 231 therebetween. Wherein the rail assembly includes a stopper 238 located above and a rail 237 located below, the stopper 238 protruding from the floor surface to a greater height than the rail 237 protruding from the floor surface. So that the sliding member 231 can be stopped on the stopper 238 when sliding to the bottom of the stopper 238 when sliding upward along the sliding rail 237, and the purpose of stabilizing the sliding member, the pallet and the spurs can be achieved. Further preferably, a second sliding groove 245 is provided at a contact position of the sliding member 231 corresponding to the sliding rail 237, and the second sliding groove can be slidably provided on the sliding rail 237 and move upward along the sliding rail 237 under the action of the tension spring 236. Preferably, a fourth sliding groove 244 is arranged on the bottom plate 242 and positioned at the inner side of the sliding rail 237, a sliding block 246 matched with the fourth sliding groove 244 is arranged at the bottom of the sliding piece 231, and the width of one side of the sliding rail 237 away from the sliding block 246 is consistent with the space between the limiting plate 241 and the sliding rail 237. So that the left side of the slide rail 237 of the slider 231 slides in the space between the limiting plate 241 and the slide rail 237, and the slider 246 of the slider 231 slides in the fourth slide groove 244.
Preferably, a sliding plate is formed at an upper portion of an inner side of the slider 231, a stopper 230 is provided at a top end of the sliding plate, a third slide groove 239 allowing the sliding plate and the stopper 230 to move is formed on the bottom plate 242, and a space for restricting the pallet 223 is formed between the stopper 230 and a top of the slider 231. When the sliding member 231 is stopped at the bottom of the stopping member 238, the limiting block 230 can be limited at the top end of the third sliding groove 239, so as to perform a dual stabilizing function on the sliding member, the supporting plate and the protruding thorns.
Further preferably, a cone connector 240 is formed at the junction of the supporting plate 223 and the slider 231, the cone connector 240 has a triangular cone shape, and an inclined surface corresponding to the outer edge of the cone connector 240 is formed at the top of one side of the slider 231 facing the supporting plate 223, so that the supporting plate 223 is abutted on the top inclined surface of the slider 231 through the outer edge of the cone connector, and the stopper 230 is abutted on the top surface of the cone connector. Preferably, the vertebral body connector 240 is only disposed at the position where the blade 223 is coupled to the slider 231, avoiding the vertebral body connector from obstructing the movement of the spur.
Further preferably, a limiting hole 243 is provided at the bottom of the bottom plate 242, and the bottom of the locking pull rod 232 is movably limited in the limiting hole 243. When the second barb structure 2 is in the initial state, the top of the locking tie 232 is retained in the curved slot portion 2331, the extension spring 236 is in tension, and retains the blade 223 and barb hooks 222 of the barbs 22 in the cavity 20. As shown in fig. 4, when the second barb structure is pressed, the end of the locking pull rod enters the vertical groove 2332 through the curved groove 2331 and slides down the vertical groove 2332, at this time, the sliding member 231 releases the locking, and under the action of the tension spring 236, the supporting plate 223 and the protruding thorn 22 are driven to move to the outside of the fixing member. And is then placed into the adjacent vertebral body and is stably secured within the bone tissue of the vertebral body by the barb hooks of the barb 22.
Preferably, the first barb structure 1 comprises cylindrical barbs, cylindrical barbs with inclined surfaces, cone-shaped barbs or a continuous or discontinuous toothed barb structure. That is, it is to be understood that the first barb structure 1 may be any shape barb structure of the surface of an existing prosthetic endplate. When in installation, the bottom of the second barb structure 2 is embedded in the first barb structure 1, and the top of the second barb structure 2 is protruded out of the surface of the first barb structure 1. As shown in fig. 5, in the embodiment shown in fig. 5, the first barb structure 1 is two rows of parallel continuous tooth-like barb structures provided on the surface of the prosthetic endplate, and a caulking groove for accommodating the second barb structure 2 is provided on the surface (may be a horizontal surface or an inclined surface) of the first barb structure 1, and the depth of the caulking groove is slightly smaller than the height of the fixing piece 21 of the second barb structure 2, so that the second barb structure 2 is embedded in the caulking groove of the first barb structure 1, and the top of the fixing piece 21 of the second barb structure 2 can protrude from the first barb structure 1, and the height of the fixing piece 21 of the second barb structure 2 protruding from the second barb structure 1 ensures that the fixing piece 21 of the second barb structure 2 can be subjected to pressure. The number of second barb structures 2 may be identical to the number of dentate barbs of the first barb structure 1, i.e. one second barb structure 2 is embedded in each dentate barb.
When the device is used, the first barb structures 1 and the second barb structures 2 are integrally placed in adjacent vertebral bodies, meanwhile, the driving assembly in the second barb structures can drive the protruding thorns to move outwards under the action of pressure, at least one group of barb hooks are positioned outside the fixing piece to penetrate into the bone of the adjacent vertebral bodies to form barbs, the immediate stability of the device and bone tissues is improved, and excessive vertebral body bone is not damaged.
Example 2
This embodiment provides an artificial cervical disc prosthesis, as shown in fig. 5, comprising a prosthesis upper plate 3, a prosthesis lower plate 4 and the barb fixation device described in example 1. The artificial cervical disc barb fixing devices are respectively arranged on the surfaces of the upper prosthesis plate 3 and the lower prosthesis plate 4.
The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (9)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211041114.1A CN115429497B (en) | 2022-08-29 | 2022-08-29 | Artificial cervical intervertebral disc barb fixation device and artificial cervical intervertebral disc prosthesis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211041114.1A CN115429497B (en) | 2022-08-29 | 2022-08-29 | Artificial cervical intervertebral disc barb fixation device and artificial cervical intervertebral disc prosthesis |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115429497A CN115429497A (en) | 2022-12-06 |
| CN115429497B true CN115429497B (en) | 2025-08-26 |
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| CN202211041114.1A Active CN115429497B (en) | 2022-08-29 | 2022-08-29 | Artificial cervical intervertebral disc barb fixation device and artificial cervical intervertebral disc prosthesis |
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| CN (1) | CN115429497B (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102316827A (en) * | 2008-12-10 | 2012-01-11 | 考林创新股份有限公司 | Lockable expanding spine cage |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070203580A1 (en) * | 2006-02-24 | 2007-08-30 | Paonan Biotech Co., Ltd. | Intervertebral filling |
| WO2007140382A2 (en) * | 2006-05-26 | 2007-12-06 | Abdou M S | Inter-vertebral disc motion devices and methods of use |
| US8512409B1 (en) * | 2012-02-10 | 2013-08-20 | Integral Spine Solutions, Inc. | Implant with outwardly extending fixation elements |
| WO2016010499A1 (en) * | 2014-07-18 | 2016-01-21 | Altun Adnan | Cervical disc prosthesis with movable blade |
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2022
- 2022-08-29 CN CN202211041114.1A patent/CN115429497B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102316827A (en) * | 2008-12-10 | 2012-01-11 | 考林创新股份有限公司 | Lockable expanding spine cage |
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| CN115429497A (en) | 2022-12-06 |
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