CN113384332A - High-stability vertebral body locking plate - Google Patents
High-stability vertebral body locking plate Download PDFInfo
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- CN113384332A CN113384332A CN202110757512.2A CN202110757512A CN113384332A CN 113384332 A CN113384332 A CN 113384332A CN 202110757512 A CN202110757512 A CN 202110757512A CN 113384332 A CN113384332 A CN 113384332A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws or setting implements
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/70—Spinal positioners or stabilisers, e.g. stabilisers comprising fluid filler in an implant
- A61B17/7059—Cortical plates
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws or setting implements
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/70—Spinal positioners or stabilisers, e.g. stabilisers comprising fluid filler in an implant
- A61B17/7062—Devices acting on, attached to, or simulating the effect of, vertebral processes, vertebral facets or ribs ; Tools for such devices
- A61B17/7067—Devices bearing against one or more spinous processes and also attached to another part of the spine; Tools therefor
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws or setting implements
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/70—Spinal positioners or stabilisers, e.g. stabilisers comprising fluid filler in an implant
- A61B17/7071—Implants for expanding or repairing the vertebral arch or wedged between laminae or pedicles; Tools therefor
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Abstract
本申请涉及脊椎治疗辅具的领域，尤其是涉及一种高稳定性的椎体锁定板，包括第一椎体锁定板和第二椎体锁定板，第一椎体锁定板包括第一支撑板和第一固定板，第二椎体锁定板包括第二支撑板和第二固定板，第一支撑板的一端与第二支撑板的一端能够相互固定，第一固定板一体连接于第一支撑板远离第二支撑板的一端，第二固定板一体连接于第二支撑板远离第一支撑板的一端。第一椎体锁定板和第二椎体锁定板能够完全将锥弓连接成一个整体，能够对锥弓未切除侧也进行支撑，降低锥弓未切除侧发生变形的可能性，从而降低锥弓整体发生二次形变的可能性，稳定性更强。
The present application relates to the field of chiropractic aids, in particular to a highly stable vertebral body locking plate, comprising a first vertebral body locking plate and a second vertebral body locking plate, the first vertebral body locking plate including a first support plate and the first fixing plate, the second vertebral body locking plate includes a second supporting plate and a second fixing plate, one end of the first supporting plate and one end of the second supporting plate can be fixed to each other, and the first fixing plate is integrally connected to the first supporting plate The end of the plate away from the second support plate is integrally connected to the end of the second support plate away from the first support plate. The first vertebral body locking plate and the second vertebral body locking plate can completely connect the conical arch into a whole, and can also support the unresectioned side of the conical arch, reducing the possibility of deformation on the unresected side of the conical arch, thereby reducing the conical arch The possibility of secondary deformation as a whole is more stable.
Description
Technical Field
The application relates to the field of spinal treatment assistive devices, in particular to a vertebral body locking plate with high stability.
Background
In present treatment to multiple cervical spondylopathy, like cervical spondylopathy, cervical vertebra deformity rebuild etc, need carry out the partial excision to the awl bow position of multisection cervical vertebra, later adopt the awl board fixed plate to fix the awl bow after the excision, the awl board fixed plate is located the position that the awl bow was excised, the both ends of awl board fixed plate adopt the bolt fastening with the vertebra bow at incision department both ends respectively, utilize the awl board fixed plate to support the breach department of vertebra bow. In the treatment of reconstruction of cervical vertebra deformity, such as cervical spinal stenosis or cervical intervertebral disc protrusion, in order to avoid the vertebral body from compressing the spinal cord, the vertebral arch on the side which is not cut off needs to be expanded outwards by the cone plate fixing plate so as to expand the spinal canal and achieve the purpose of reducing or avoiding compressing the spinal cord.
In the above technology, the cone plate fixing plate is only arranged at the cut-off part of the cone arch to support the cone arch, but from practical treatment cases, the existing cone plate fixing plate still has certain defects, and the situation of insufficient stability can occur after long-term use.
Disclosure of Invention
In order to solve the problem that the stability of present taper plate fixed plate is not enough, the purpose of this application is to provide a centrum locking plate of high stability.
The application provides a centrum lockplate of high stability adopts following technical scheme:
the utility model provides a centrum locking plate of high stability, includes first centrum locking plate and second centrum locking plate, and first centrum locking plate includes first backup pad and first fixed plate, and second centrum locking plate includes second backup pad and second fixed plate, and the one end of first backup pad and the one end of second backup pad can reciprocal anchorage, and first fixed plate body coupling is in the one end that the second backup pad was kept away from to first backup pad, and the one end of first backup pad is kept away from to second fixed plate body coupling in the second backup pad.
Through adopting above-mentioned technical scheme, second centrum lockplate passes through the bolt fastening and in the unresectable side of awl bow, and second fixed plate and first fixed plate are fixed at the both ends position of awl bow, and first centrum lockplate is located the awl bow department of excision department, and first centrum lockplate and second centrum lockplate can connect into a whole with the awl bow completely this moment, can also support the unresectable side of awl bow, reduce the possibility that the unresectable side of awl bow takes place to warp to reduce the whole possibility that takes place secondary deformation of awl bow, stability is stronger.
Preferably, the first support plate and the second support plate are hinged to each other, a connecting bolt is arranged between the first support plate and the second support plate, the hinged parts of the first support plate and the second support plate are a first hinged part and a second hinged part respectively, the connecting bolt penetrates through the first hinged part and the second hinged part, and tightening the connecting bolt can press the first hinged part and the second hinged part to approach each other to realize fixation.
Through adopting above-mentioned technical scheme, not hard up interlinkage bolt can link the bolt relatively and rotate first backup pad and second backup pad to the angle between adjustment first backup pad and the second backup pad to the awl bow of adaptation different shapes, later screws up interlinkage bolt again in order to lock first backup pad and second backup pad, promotes centrum locking plate's adaptability.
Preferably, friction lines are arranged on the surfaces of the first hinge part and the second hinge part, which are close to each other.
By adopting the technical scheme, the friction force between the first hinge part and the second hinge part can be improved by using the friction grains on the first hinge part and the second hinge part, and the stability of the first hinge part and the second hinge part after being locked is improved.
Preferably, the friction lines are anti-slip grooves, the anti-slip grooves comprise a plurality of anti-slip grooves, the anti-slip grooves are uniformly arranged on the first hinge portion and the second hinge portion along the axial direction, and the spacing distance between the anti-slip grooves is the same as the groove width of the anti-slip grooves.
By adopting the technical scheme, the bulge between the anti-skid grooves on the first hinge part can be accommodated in the anti-skid groove on the second hinge part, so that the anti-skid stability of the first hinge part and the second hinge part is better, and the angle between the first hinge part and the second hinge part can be uniformly adjusted.
Preferably, the first and second hinges are located outboard of the first and second vertebral body locking plates and are convexly disposed.
Through adopting above-mentioned technical scheme, can bulge first centrum lockplate and second centrum lockplate after first articulated portion and the concatenation of second articulated portion, like this with the centrum lockplate after fixed to the cervical vertebra, first articulated portion and second articulated portion can replace the spinous process as the bulge, like this at the postoperative, the cervical vertebra bulge position that shows is first articulated portion and second articulated portion, and the position can be in the middle part of cervical vertebra, promotes the aesthetic property of postoperative.
Preferably, be provided with the subassembly between the awl on first fixed plate and the second fixed plate, the subassembly includes nail seat, connective bar and nail plug screw between the awl, nail seat fixed connection is in the top of first fixed plate and second fixed plate, and storage tank and thread groove have been seted up to the upper end of nail seat, the storage tank runs through the both sides of nail seat, the diameter of thread groove is greater than the width of storage tank and the middle part at the storage tank is seted up to the storage tank, the connective bar is located the storage tank, nail plug screw and thread groove threaded connection back and connective bar butt.
Through adopting above-mentioned technical scheme, when all being provided with centrum lockplate and awl on the multisection cervical vertebra when adjusting part, place the connective bar in the storage tank of the nail seat on different centrum lockplate homonymies, later adjust the awl interval between the adjacent cervical vertebra, screw the oncomelania stopper at last in the thread groove to screw up the oncomelania stopper and compress tightly the connective bar, thereby fixed awl interval reaches the purpose of adjusting the awl interval, with the treatment intervertebral disc protrusion.
Preferably, the second support plate is provided with a nail hole which is a long round hole, and the length direction of the nail hole is consistent with that of the second support plate.
Through adopting above-mentioned technical scheme, at the in-process of fixing the second backup pad to the awl bow, the screw can move in order to adjust fixed position or angle in the nail hole, and is fixed more nimble.
Preferably, the first supporting plate is provided with a preformed hole.
Through adopting above-mentioned technical scheme, the screw can pass the autogenous bone threaded connection after preformed hole and the excision, just can place the autogenous bone in the cutting off department of awl bow this moment to promote the protection to the spinal cord.
Preferably, the joint of the first support plate and the first fixing plate is provided with an abutting part, the abutting part is positioned on the inner side of the first vertebral body locking plate, and the lower end of the abutting part protrudes downwards and exceeds the first fixing plate.
By adopting the technical scheme, the abutting part can abut against the inner side of the section end part of the truncated part of the cone arch, and the first fixing plate is positioned on the outer side of the section end part of the cone arch, so that the stability of connection between the first vertebral body locking plate and the vertebral body section is improved.
Preferably, the first support plate and the second support plate are identical in structure.
By adopting the technical scheme, the positions of the first supporting plate and the second supporting plate do not need to be distinguished in the process of installing the vertebral body locking plate, and the probability of misoperation is reduced.
In summary, the present application has the following technical effects:
1. by arranging the first vertebral body locking plate and the second vertebral body locking plate, the stability of the vertebral body locking plate for fixing the conical arch is improved;
2. the first vertebral body locking plate and the second vertebral body locking plate are hinged with each other, so that the adaptability of the vertebral body locking plates and the flexibility in use are improved;
3. the anti-skidding groove is formed in the hinged position of the first vertebral body locking plate and the second vertebral body locking plate, so that the fixing stability between the first vertebral body locking plate and the second vertebral body locking plate is improved;
4. through setting up adjusting part between the awl, can adjust the interval between the awl.
Drawings
FIG. 1 is a schematic view showing a state in which a vertebral body locking plate is mounted on a cervical vertebrae according to an embodiment.
Fig. 2 is a schematic structural view of a vertebral body locking plate according to an embodiment.
FIG. 3 is a schematic view showing the structure of the anti-slip groove in one embodiment.
Fig. 4 is a schematic view of the mounting structure of the second embodiment.
Fig. 5 is an exploded view of the second exemplary embodiment of the adjusting structure between cones.
Description of reference numerals: 1. a first vertebral body locking plate; 11. a first support plate; 111. a first hinge portion; 12. a first fixing plate; 13. an abutting portion; 2. a second vertebral body locking plate; 21. a second support plate; 211. a second hinge portion; 22. a second fixing plate; 3. a link bolt; 4. an anti-slip groove; 41. a protrusion; 5. an inter-cone adjustment assembly; 51. a nail seat; 511. a containing groove; 512. a thread groove; 52. a connecting rod; 53. nailing and screwing plugs; 6. nailing holes; 7. reserving a hole; 91. a conical bow; 911. cutting the side of the conical arch; 912. the complete side of the conical arch.
Detailed Description
The invention is mainly used for cervical vertebra or vertebra operation, and can be used for fixing after cutting off cervical vertebra or vertebra part. For easy understanding, firstly, a simple explanation is made on the structure of the cervical vertebra, the cross section of the cervical vertebra is shown in fig. 1 and includes a conical arch 91 and a spinous process, a conical hole is formed in the arched part of the conical arch 91, and a spinal cord is arranged in the conical hole, during an operation, one side of the conical arch 91 is usually cut off, and after the cut-off, the spinal cord is cleaned and treated, or the non-cut side of the conical arch 91 is outwards supported to raise the cross section of the conical hole and reduce the compression of the conical arch 91 on the spinal cord. The vertebral body locking plate is then used to fix and support the tapered arch 91, mainly to support the cut section of the tapered arch 91 and maintain the shape of the tapered arch 91. For convenience of description, the uncut side of the conical arch 91 is hereinafter referred to as the conical arch intact side 912, and the cut side of the conical arch 91 is referred to as the conical arch cut side 911.
Example one
As shown in fig. 1, the present embodiment describes a vertebral body locking plate with high stability, which includes a first vertebral body locking plate 1 and a second vertebral body locking plate 2, wherein one end of the first vertebral body locking plate 1 is fixedly connected with one end of the second vertebral body locking plate 2, and the fixed connection here may be an integral connection or a detachable fixed connection. Referring to fig. 1, generally, the second vertebral body locking plate 2 is fixed on the complete side 912 of the cone arch, and the first vertebral body locking plate 1 is fixed on the resected side 911 of the cone arch, and the first vertebral body locking plate 1 and the second vertebral body locking plate 2 can form a structure with a stable shape, so that the cone arch 9 can be fixed and shaped. Because both sides of the cone arch 9 are fixed at the same time, the second vertebral body locking plate 2 can be used for locking the complete side 912 of the cone arch, the possibility of secondary deformation of the complete side 912 of the cone arch is reduced, and simultaneously, more pressure born by the integral cone arch 9 can be born by the first vertebral body locking plate 1 and the second vertebral body locking plate 2, the load actually born by the cone arch 9 is reduced, and the stability is stronger.
As shown in fig. 1, the first vertebral body locking plate 1 comprises a first supporting plate 11 and a first fixing plate 12, the second vertebral body locking plate 2 comprises a second supporting plate 21 and a second fixing plate 22, one end of the first supporting plate 11 and one end of the second supporting plate 21 can be fixed to each other, the first fixing plate 12 is integrally connected to one end of the first supporting plate 11 far away from the second supporting plate 21, the second fixing plate 22 is integrally connected to one end of the second supporting plate 21 far away from the first supporting plate 11, and nail-shaped protrusions are arranged on the lower surfaces of the first fixing plate 21 and the second fixing plate 22. In use, the first fixing plate 12 is fixed to the end of the side 911 on which the taper segment is cut by bolts, the second fixing plate 22 is fixed to the end of the side 912 on which the taper segment is completed by bolts, the second support plate 21 is attached to the side 912 on which the taper segment is completed, and the first support plate 11 can support the side 911 on which the taper segment is cut. In the process of fixing the first fixing plate 11 and the second fixing plate 21, the nail-shaped protrusion is utilized, so that the first fixing plate 12 and the second fixing plate 22 are higher in attaching stability with the taper bow 91, and are less prone to sliding.
As shown in fig. 2, in the present embodiment, the first support plate 11 and the second support plate 21 are hinged, and the linking bolt 3 is disposed between the first support plate 11 and the second support plate 21, so that the angle between the first support plate 11 and the second support plate 21 can be adjusted to improve the adaptability of the vertebral body locking plate to different conical arch shapes, the flexibility of use is stronger, and after the angle between the first support plate 11 and the second support plate 21 is suitable, the relative position between the first support plate 11 and the second support plate 21 can be fixed by using the linking bolt 3.
Specifically, as shown in fig. 2, the first hinge portion 111 and the second hinge portion 211 are respectively formed at the hinge portion of the first support plate 11 and the hinge portion of the second support plate 21, the link bolt 3 passes through the first hinge portion 111 and the second hinge portion 211, friction lines are formed on the contact surfaces of the first hinge portion 111 and the second hinge portion 211 which are close to each other, and the first hinge portion 111 and the second hinge portion 211 can be pressed close to each other by tightening the link bolt 3, so that the first hinge portion 111 and the second hinge portion 211 can be relatively fixed by friction force.
The specific locking structure of the link bolt 3 may be provided with a nut at the rear portion of the link bolt 3, and the link bolt 3 is coupled with the nut after passing through the first hinge portion 111 and the second hinge portion 211, and the relative fixation between the first hinge portion 111 and the second hinge portion 211 is maintained by the clamping action of the link bolt 3 and the nut. In the present embodiment, an internal thread is formed in the second hinge portion 211, at this time, the link bolt 3 is screwed with the second hinge portion 211 after passing through the first hinge portion 111, and the head of the link bolt 3 is embedded in the first hinge portion 111, so that the structure is compact, and the number of parts of the structure is small, and the installation process is simple.
There are various ways of friction lines on the first hinge portion 111 and the second hinge portion 211, in this embodiment, as shown in fig. 3, the friction line is an anti-slip groove 4, the anti-slip groove 4 includes a plurality of anti-slip grooves 4, the anti-slip grooves 4 are uniformly arranged on the first hinge portion 111 and the second hinge portion 211 along the axial direction, a protrusion 41 is formed between adjacent anti-slip grooves 4, and the spacing distance between the anti-slip grooves 4 is the same as the groove width of the anti-slip groove 4, that is, the protrusion 41 can be matched with the anti-slip groove 4. At this time, as the first hinge portion 111 rotates relative to the second hinge portion 211, a minimum angle, i.e., an interval angle between the two anti-slip grooves 4, can be formed at each rotation, and then the anti-slip grooves 4 and the protrusions 41 of the first hinge portion 111 and the second hinge portion 211 are fitted to each other, so that the anti-slip stability of the first hinge portion 111 and the second hinge portion 211 is ensured, and the angle between the first hinge portion 111 and the second hinge portion 211 can be uniformly adjusted.
As shown in fig. 2, the first support plate 11 is provided with a prepared hole 7, the second support plate 21 is provided with a nail hole 6, the nail hole 6 and the prepared hole 7 are preferably both oblong holes, and the length direction of the oblong holes is the same as the length direction of the first support plate 11 or the second support plate 21. The nail holes 6 are used for fixing the second support plate 21 on the conical arch 91, and the prepared holes 7 are used for fixing the autogenous bone generated by the cut conical arch with the first support plate 11, so that the autogenous bone can be used for shielding the spinal cord. The purpose of setting the hole as the oblong hole is to improve the selectivity of the fixing position and the fixing angle of the bolt.
Because the effect of nail hole 6 and preformed hole 7 is distinguished, use the in-process of centrum lockplate when the operation, need carefully distinguish first centrum lockplate 1 and second centrum lockplate 2, in order to reduce the degree of difficulty, can set up nail hole 6 and preformed hole 7 simultaneously on first centrum lockplate 1 and second centrum lockplate 2, keep first backup pad 11 and second backup pad 21 structural uniformity, also can reduce weight simultaneously.
As shown in fig. 2, the joint of the first support plate 11 and the first fixing plate 12 is provided with an abutting portion 13, the abutting portion 13 is located inside the first vertebral body locking plate 1, and the lower end of the abutting portion 13 protrudes downward beyond the first fixing plate 12. As shown in fig. 1, when in use, the abutting portion 13 can abut against the inner side of the end portion of the section of the truncated portion of the tapered bow 91, and the first fixing plate 12 is positioned at the outer side of the end portion of the section of the tapered bow 91, so that when the first support plate 11 is stressed, the force is firstly transmitted to the section of the tapered bow 91, thereby reducing the force transmitted to the fixing bolt of the first fixing plate 12, finally improving the stability of the connection between the first vertebral body locking plate 1 and the section of the tapered bow 91, and reducing the possibility of loosening of the bone fixing bolt. Similarly, the second contact portion 23 may be provided inside the joint between the second support plate 21 and the second fixing plate 22, and the second contact portion 23 may be inserted into the tapered bow 91 to reduce the biasing force transmitted to the fixing bolt of the second fixing plate 22.
In addition, the conical arch 91 is expanded outwards to lift the section of the conical hole, and then the conical arch 91 is fixed by the vertebral body locking plate, so that the spinous processes deviate from the original position, the spinous processes of the cervical vertebra are irregularly distributed or deflected, and the body appearance of a patient after the operation is affected. At this time, as shown in fig. 1, the first hinge portion 111 and the second hinge portion 211 may be provided outside the first vertebral body locking plate 1 and the second vertebral body locking plate 2 and be provided in a protruding manner. Thus, when the vertebral body locking plate is installed, firstly, the spinous process is cut off, and the protrusion similar to the spinous process is formed by the protrusion of the first hinge part 111 and the second hinge part 211, and only the protrusion of the first hinge part 111 and the second hinge part 211 can be seen after operation, thereby ensuring the beauty after operation.
First, the complete side 912 of the tapered arch is supported outward, the angle between the first support plate 11 and the second support plate 21 is adjusted according to the shape of the tapered arch 91, and then the cut-off bone of the tapered arch itself is fixed to the inside of the first support plate 11 by the fixing bolt, the abutting portion 13 is abutted to the inside of the end portion of the cross section of the tapered arch 91, the second support plate 21 and the complete side 912 of the tapered arch are fixed by the fixing bolt, the second fixing plate 22 and the end portion of the complete side 912 of the tapered arch are fixed, and finally the first fixing plate 12 and the end portion of the cut side 911 of the tapered arch are fixed.
Example two:
as shown in fig. 4, the difference from the first embodiment is that the present embodiment is provided with an inter-awl adjusting set 5 and is suitable for the treatment of at least two cervical vertebrae.
As shown in fig. 4 and 5, the adjusting assembly 5 includes a nail seat 51, a connecting rod 52 and a nail screw plug 53, the nail seat 51 is fixedly connected above the first fixing plate 12 and the second fixing plate 22, in this embodiment, a fixing bolt passes through the nail seat 51 and the fixing plates and then is fixed with the conical bow 91, and the nail seat 51 and the fixing plates are relatively fixed by the pressing action of the fixing bolt, so that the structure is compact. Of course, the nail seat 51 can be directly fixed on the first fixing plate 12 and the second fixing plate 22, and at this time, the length of the first fixing plate 12 and the second fixing plate 22 needs to be lengthened to ensure the position for arranging the fixing bolt. The upper end of the nail seat 51 is provided with a containing groove 511 and a thread groove 512, the containing groove 511 penetrates through two sides of the nail seat 51, the diameter of the thread groove 512 is larger than the width of the containing groove 511, the containing groove 511 is arranged in the middle of the containing groove 511, the connecting rod 52 is positioned in the containing groove 511, and the screw plug 53 is in threaded connection with the thread groove 512 and then is abutted to the connecting rod 52. During installation, a plurality of adjacent vertebral bodies are fixed by vertebral body locking plates, the nail seat 51 is fixed on the first fixing plate 12 and the second fixing plate 22, then the connecting rod 52 is placed in the accommodating groove 511 in the nail seat 51 on the same side of the adjacent vertebral bodies, then the gap between the adjacent vertebral bodies is adjusted, after adjustment is completed, the nail screw plug 53 is connected into the thread groove 512 in a threaded mode, the nail screw plug 53 is continuously screwed until the nail screw plug 53 is abutted against the connecting rod 52, the length of the connecting rod 52 between the adjacent nail seats 51 is fixed, finally the distance between the adjacent vertebral bodies is guaranteed, and the cone distance is kept at a proper distance, so that the effect of treating the protrusion of intervertebral disc is achieved.
The embodiments of the present invention are preferred embodiments of the present application, and the scope of protection of the present application is not limited by the embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (10)
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110757512.2A CN113384332A (en) | 2021-07-05 | 2021-07-05 | High-stability vertebral body locking plate |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110757512.2A CN113384332A (en) | 2021-07-05 | 2021-07-05 | High-stability vertebral body locking plate |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115813517A (en) * | 2023-02-16 | 2023-03-21 | 暨南大学 | A kind of posterior cervical laminoplasty fixation plate |
| CN117442263A (en) * | 2023-12-22 | 2024-01-26 | 北京爱康宜诚医疗器材有限公司 | Laminar distraction device |
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| CN115813517B (en) * | 2023-02-16 | 2023-05-09 | 暨南大学 | A kind of posterior cervical laminoplasty fixation plate |
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| CN117442263B (en) * | 2023-12-22 | 2024-04-30 | 北京爱康宜诚医疗器材有限公司 | Vertebral lamina opening device |
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