CN113855200B - Cervical vertebra rear road single door opening fixture - Google Patents
Cervical vertebra rear road single door opening fixture Download PDFInfo
- Publication number
- CN113855200B CN113855200B CN202111081397.8A CN202111081397A CN113855200B CN 113855200 B CN113855200 B CN 113855200B CN 202111081397 A CN202111081397 A CN 202111081397A CN 113855200 B CN113855200 B CN 113855200B
- Authority
- CN
- China
- Prior art keywords
- opening
- matching
- plate
- spinous process
- fixing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- 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, setting implements or the like
- 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 ; Bone 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
- A61B17/707—Devices acting on, or attached to, a transverse process or rib; Tools therefor
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B2017/00004—(bio)absorbable, (bio)resorbable, resorptive
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/30—Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change
Landscapes
- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Neurology (AREA)
- Surgery (AREA)
- Heart & Thoracic Surgery (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Surgical Instruments (AREA)
- Prostheses (AREA)
Abstract
The invention discloses a cervical vertebra posterior single-door opening fixture, belonging to the technical field of orthopedic implants, the cervical vertebra way single open door fixture is including the fixed plate that is used for connecting the side piece end, be used for connecting the cutting ferrule of the broken end in spinous process side to and connect the transition connecting plate of fixed plate and cutting ferrule, wherein: the fixing plate is provided with a fixing hole, the clamping sleeve is provided with a cavity for accommodating the broken end of the spinous process side, one side of the cavity, facing the broken end of the spinous process side, is provided with an opening, and the upper side and the lower side of the opening are provided with ligamentum flavum accommodating grooves. The invention is designed with the ligamentum flavum containing groove, when in implantation, the ligamentum flavum containing groove can reduce the obstruction of the ligamentum flavum between the vertebral plates to the clamping implantation, so that the clamping depth of the clamping sleeve and the broken ends at the spinous process side is maximized, the risk of detachment is reduced, and the firm stability of the interface part can be enhanced after the ligamentum flavum is clamped.
Description
Technical Field
The invention relates to the technical field of orthopedic implants, in particular to a cervical vertebra posterior single-door opening fixture.
Background
In the cervical vertebra posterior single door opening operation, the traditional method is to bend and attach the titanium plate according to the size and the space after the door opening. The thickness of the traditional titanium plate is about 1-1.5mm, and the plastic damage of the material is caused after the pre-bending, so that the plate breakage is very easy to occur at the bending position. Therefore, the single-door fixing object with the fixed angle is determined according to the anatomical data, and the single-door fixing object has protection significance on the safety of the fixing object and the integral deformation resistance of the fixed vertebral canal.
The inventor finds that when the prior single-door fixing object is in clamping and implanting, the single-door operation only cuts the intervertebral and side blocks and can not cut off the ligaments among the vertebral plates, so the ligaments among the vertebral plates are in a state of being connected with each other, and the structure of the prior product does not have a structure for enabling the ligaments among the vertebral plates to be accessed, so the broken ends of the vertebral plates can not be clamped in firmly and stably when in clamping and implanting.
Disclosure of Invention
The invention aims to solve the technical problem of providing a cervical vertebra posterior single-door fixing object which is firm and stable in fixation, and improves the safety of the fixing object and the integral deformation resistance of a fixed vertebral canal.
In order to solve the technical problems, the invention provides the following technical scheme:
the utility model provides a cervical vertebra way singly opens door fixture, is including the fixed plate that is used for connecting the side piece end, the cutting ferrule that is used for connecting the broken end in spinous process side to and connect the transition connecting plate of fixed plate and cutting ferrule, wherein:
the fixing plate is provided with a fixing hole, the clamping sleeve is provided with a cavity for accommodating the broken end on the side of the spinous process, one side, facing the broken end on the side of the spinous process, of the cavity is provided with an opening, and the upper side and the lower side of the opening are provided with ligamentum flavum accommodating grooves.
Further, the upper surface of the opening is provided with a first matching surface, the lower surface of the opening is provided with a second matching surface, and when the second matching surfaces of the openings of two adjacent fixtures are contacted with the first matching surfaces, the two matching surfaces are not interfered with each other.
Furthermore, the first matching surface is an inclined upper concave surface, the second matching surface is a lower convex surface, and the inclined upper concave surface and the lower convex surface can form joint surface matching when contacting.
Further, the opening is a quadrangular prism, when a human body stands, the upper vertex and the lower vertex of the quadrangular prism are intersected with the vertical line of the human body, so that the second matching surfaces and the first matching surfaces of the openings of two adjacent fixtures are in tile-shaped lamination when in contact.
Further, the ligamentum flavum accommodating groove is a linear groove or a curved S-shaped groove.
Furthermore, the outer side shapes of the fixing plate, the transition connecting plate and the clamping sleeve are integrally Z-shaped, and/or the inner sides of the fixing plate, the transition connecting plate and the clamping sleeve are in arc transition.
Further, the thickness of the transition connecting plate gradually increases from one side close to the fixing plate to the other side.
Further, the angle between the outer side surface of the cutting sleeve and the coronal surface of the human body is 0-40 degrees.
Further, the angle between the outer side surface of the cutting sleeve and the coronal surface of the human body is 5-15 degrees.
Further, the fixing plate is parallel to the coronal plane of the human body, and/or an angle between the transition connecting plate and the coronal plane of the human body is 60-80 degrees, and/or the fixing hole is a slotted hole.
Further, the cervical vertebra rear path single-door opening fixing object is made of absorbable materials, and/or the transition connecting plate is of a solid structure or a structure containing pores.
The invention has the following beneficial effects:
the cervical vertebra posterior single-door fixing object adopts a fixing angle which is matched with an anatomical structure, a titanium plate is not required to be bent in operation, the condition of plate breakage is avoided, the firmness of the fixing object can be ensured, and the safety of the fixing object and the integral deformation resistance of a fixed vertebral canal are improved; the design has the yellow ligament holding groove, and yellow ligament holding groove can reduce the interference of intervertebral yellow ligament to joint implantation when implanting, makes cutting ferrule and the broken end joint degree of depth of spinous process side reach the biggest, reduces the risk that breaks away from each other, can strengthen the firm stability of interface part after blocking the yellow ligament simultaneously. The bone grafting material or autologous bone does not need to be put into the operation for bone fusion at the opening side, so that the difficulty of the operation is greatly reduced, and the risks of falling and sliding are effectively avoided.
Drawings
FIG. 1 is a schematic structural view of an embodiment of a cervical vertebra rear-end single-door fastener of the present invention, wherein (a) is a schematic structural view of the whole body, (b) is a schematic cross-sectional view, and (c) is a schematic longitudinal-sectional view;
FIG. 2 is a view showing a state of use of the cervical vertebra posterior single door fastener shown in FIG. 1;
FIG. 3 is a schematic view of the outer surface of the ferrule of the cervical vertebra posterior single door opening fixture shown in FIG. 1 in different angles;
FIG. 4 is a schematic view of the cervical vertebra rear single door fastener of the present invention in use, using the different angle clamping sleeves shown in FIG. 3;
FIG. 5 is a schematic view of the opening structure of the clamping sleeve of the cervical vertebra rear-side single-door fixing object, wherein (a) is a quadrangular prism shape, and (b) the corresponding fixing objects are multiple groups and the openings are all quadrangular prisms;
FIG. 6 is a schematic view of another embodiment of a cervical spine single door fastener of the present invention;
FIG. 7 is a front view of the cervical spine single door anchor of FIG. 6;
FIG. 8 is a schematic view showing a state of use of the cervical vertebra posterior single door opening fixture shown in FIG. 6;
FIG. 9 is a schematic view of the ligamentum flavum accommodating pocket in the cervical vertebra posterior single door fastener shown in FIG. 6;
fig. 10 is a schematic diagram showing an improved structure of the cervical vertebra rear single door opening fixture of the present invention.
Detailed Description
In order to make the technical problems, technical solutions and advantages to be solved more apparent, the following detailed description will be given with reference to the accompanying drawings and specific embodiments.
The invention provides a cervical vertebra posterior single-door fixing object, which is shown in figures 1-10, and comprises a fixing plate 1 for connecting a lateral block end 4, a clamping sleeve 2 for connecting a lateral broken end 5 of a spinous process, and a transition connecting plate 3 for connecting the fixing plate 1 and the clamping sleeve 2, wherein:
the fixing plate 1 is provided with a fixing hole 11, the fixing plate 1 can be conveniently fixed to the side block end 4 through the fixing hole 11, for example, a side block fixing screw 12 for fixing to the side block end 4 can be arranged in the fixing hole 11, and for convenience in operation, a proper nail placing position is selected, and the fixing hole 11 can be specifically a slotted hole as shown in the embodiment in the figure;
the ferrule 2 has a cavity 21 for accommodating the spinous process side broken end 5, one side of the cavity 21 facing the spinous process side broken end 5 is provided with an opening 22, upper and lower sides of the opening 22 are provided with ligamentum flavum accommodating grooves 23 (not shown temporarily in the embodiment shown in fig. 1-5, see the embodiment shown in fig. 6-9), the ligamentum flavum accommodating grooves 23 may be specifically linear grooves or curved S-shaped grooves shown in fig. 9, and the length of the ligamentum flavum accommodating grooves 23 may be greater than zero to extend completely.
In the cervical spine single door operation, the proper product specification is confirmed and selected before operation, the cervical spine single door fixing object of the invention is moved after the operation is opened, the spinous process side broken end 5 is installed into the opening end of the product (namely, the cavity 21 of the clamping sleeve 2, the ligamentum flavum accommodating groove 23 accommodates the interlaminar ligamentum flavum 6 (see fig. 8)) at the moment, then the fixing plate 1 is aligned with the lateral block end 4, and the fixing plate 1 side is fixed to the lateral block end 4 by using the lateral block fixing screw 12 to penetrate through the fixing hole 11 on the fixing plate 1.
The cervical vertebra posterior single-door fixing object adopts a fixing angle which is matched with an anatomical structure, a titanium plate is not required to be bent in operation, the condition of plate breakage is avoided, the firmness of the fixing object can be ensured, and the safety of the fixing object and the integral deformation resistance of a fixed vertebral canal are improved; the design has the yellow ligament holding groove, and yellow ligament holding groove can reduce the interference of intervertebral yellow ligament to joint implantation when implanting, makes cutting ferrule and the broken end joint degree of depth of spinous process side reach the biggest, reduces the risk that breaks away from each other, can strengthen the firm stability of interface part after blocking the yellow ligament simultaneously. The bone grafting material or autologous bone does not need to be put into the operation for bone fusion at the opening side, so that the difficulty of the operation is greatly reduced, and the risks of falling and sliding are effectively avoided. The invention is suitable for cervical vertebra posterior single door opening operation.
In the invention, the whole of the outer side shape (namely the outer side shape of the product) of the fixing plate 1, the transition connecting plate 3 and the cutting sleeve 2 can be Z-shaped, the shape is similar to the Z shape of a single-door titanium plate, the inner side (namely the inner side of the product) of the fixing plate 1, the transition connecting plate 3 and the cutting sleeve 2 can be arc transition, thereby avoiding tissue scars caused by cutting the content such as nerve bundles in the vertebral canal and increasing the operation safety.
Preferably, the thickness of the transition connecting plate 3 varies from one side (i.e., the side near the block end in fig. 1 (b)) to the other side (i.e., the side near the broken end in fig. 1 (b)), and the thickness thereof gradually increases to make the structure of the fixture more firm and to enhance the deformation resistance of the fixture.
Different patients often need different opening degrees, so as to adapt to the needs of different opening degrees, as shown in fig. 3, the opening end of the product and the horizontal plane in the drawing can form different angles theta for adapting to different opening degrees, that is, the outer side surface of the clamping sleeve 2 and the coronal plane of the human body can be set at different angles, and the range of the angle theta can be 0-40 degrees, preferably 5-15 degrees.
Fig. 3 shows the appearance of the product when the angle θ is 0 °, 5 ° and 15 °, and the inclination angle of the open end of the product is different according to the cervical vertebra opening degree in the operation, and the larger the opening degree (θ=0°), the larger the size of the main body portion (i.e. the transition connecting plate 3) of the product is. Fig. 4 shows the effect of three different angle products for use in surgery, with the shaded area being the area of expansion of the spinal canal created by the use of the different angle products.
For better adaptation to the anatomy of the human body, referring to fig. 3-4, the fixation plate 1 is preferably parallel to the coronal plane of the human body, and the angle between the transition connection plate 3 and the coronal plane of the human body is preferably 60 ° -80 °, so that the fixation plate 1 is connected with the lateral broken end 5 of the spinous process at an angle, and can better adapt to the characteristic that the vertebral plate and the lateral mass form an inclination angle in the coronal plane after being lifted.
The inventors also found during the course of the study that: the single-door operation of cervical vertebra is a multi-section operation type, the operation is usually carried out from the sections c3-c7, the collision and the blocking and the movement interference between the upper section and the lower section can occur after the existing structure is installed and implanted into a human body in the multi-section operation type, the operation in the operation of doctors and the normal movement of cervical vertebra after the operation of patients are greatly influenced, the collision, the blocking and the movement interference are used for rigidly fixing the sections of the cervical vertebra, the sections are fused with each other, and the effect to be achieved by the single-door operation is obviously opposite to that of the single-door operation type. In order to solve the problem, the invention can adopt the following scheme: the upper surface of the opening 22 has a first mating surface, the lower surface of the opening 22 has a second mating surface, and when the second mating surfaces of the openings 22 of two adjacent fixtures are contacted with the first mating surfaces, the two mating surfaces are not interfered with each other. In specific implementation, the following structural forms are available:
structural form one
As shown in fig. 5 (a), the opening 22 of the ferrule 2 is a shaped opening, and is more closely fitted to the broken end of the spinous process side, and is approximately quadrangular.
Preferably, the quadrangular prism is designed as follows: when a human body stands, the upper vertex (left vertex in fig. 5 (a)) and the lower vertex (right vertex in fig. 5 (a)) of the four prisms are intersected with the vertical line of the human body (non-parallel and have a certain included angle), so that the structure accords with the anatomical characteristics of lamination of the tile type of the cervical vertebra lamina, the left vertex (namely the low vertex LP) in fig. 5 (a) is the upper position of the human body, the right vertex (namely the high vertex HP) is the lower position of the human body, and the purpose of the design is to adapt to the arrangement shape of the human vertebra, form the tile type lamination, avoid the mutual interference after the upper vertebra and the lower vertebra are provided with the product, and ensure that the original position characteristics of the adjacent vertebral laminas can be kept when the product is applied to perform surgery in a plurality of sections, so that the anatomical characteristics of the vertebral laminas can not be interfered by movement, and the anatomical characteristics of the vertebral laminas can be more met.
Structural form II
As shown in fig. 6, the first mating surface of the upper surface of the opening 22 may be a beveled upper concave surface 24, and the second mating surface of the lower surface of the opening 22 may be a lower convex surface 25, both of which may form an articular surface mating when the beveled upper concave surface 24 and the lower convex surface 25 are in contact. Therefore, in the multi-section operation, when a plurality of products are combined up and down between the vertebrae, if motion interference or contact occurs, the design can enable the upper product and the lower product to form a joint surface to form a motion curved surface, so that the contact is converted into motion, interference is reduced, and the degree of freedom of the intervertebral motion after operation is improved.
In the invention, the cervical vertebra posterior single-door opening fixing object can be an absorbable material, the absorbable material can be a polylactic acid material containing glass fibers (the material is proved to have osteoinductive property) and is not limited to the material, so that the product is hardly degraded in the initial stage of implantation and is used for maintaining the stability of a door opening structure, after a period of time, the material is degraded, bone tissues slowly climb to the product (bone cells climb to the broken ends of side blocks along the solid bridging by virtue of micropores formed in the solid part of the transition connecting plate 3), and finally a stable structure is formed, so that the integrated design of the bone grafting material and the structure is realized.
The transition connecting plate 3 can be of a solid structure or a structure containing pores (figure 10), and the pore structure is more convenient for bone climbing and bone ingrowth on the premise of ensuring the strength of a product.
While the foregoing is directed to the preferred embodiments of the present invention, it will be appreciated by those skilled in the art that various modifications and adaptations can be made without departing from the principles of the present invention, and such modifications and adaptations are intended to be comprehended within the scope of the present invention.
Claims (7)
1. The cervical vertebra posterior single-door fixing object is characterized by comprising a fixing plate for connecting a lateral block end, a clamping sleeve for connecting a lateral broken end of a spinous process, and a transition connecting plate for connecting the fixing plate and the clamping sleeve;
the fixing plate is provided with a fixing hole, the clamping sleeve is provided with a cavity for accommodating the broken end on the side of the spinous process, one side of the cavity, facing the broken end on the side of the spinous process, is provided with an opening, and the upper side and the lower side of the opening are provided with ligamentum flavum accommodating grooves;
the upper surface of the opening is provided with a first matching surface, the lower surface of the opening is provided with a second matching surface, and when the second matching surfaces of the openings of two adjacent fixtures are contacted with the first matching surface, the two matching surfaces are not interfered with each other, wherein:
the first matching surface is an inclined upper concave surface, the second matching surface is a lower convex surface, and the inclined upper concave surface and the lower convex surface can form joint surface matching when contacting;
or, the opening is a quadrangular prism, when a human body stands, the upper vertex and the lower vertex of the quadrangular prism are intersected with the vertical line of the human body, so that the second matching surfaces and the first matching surfaces of the openings of two adjacent fixtures are in tile-shaped lamination when in contact.
2. The posterior cervical single door fastener of claim 1, wherein the ligamentum flavum containing slot is a linear slot or a curved S-shaped slot.
3. The posterior cervical single door fixator of claim 1, wherein the outer sides of the fixing plate, the transition connecting plate and the clamping sleeve are integrally zigzag-shaped, and/or the inner sides of the fixing plate, the transition connecting plate and the clamping sleeve are arc-shaped transition.
4. The posterior cervical single door fastener of claim 1, wherein the transition web is tapered from one side adjacent to the fastening plate to the other side.
5. The posterior cervical single door anchor of claim 1, wherein the angle between the outside surface of the ferrule and the coronal plane of the human body is 0-40 degrees.
6. The posterior cervical single door fastener of claim 1, wherein the fastener hole is a oblong hole.
7. The posterior cervical single gate fixation device of claim 1, wherein the posterior cervical single gate fixation device is an absorbable material and/or the transition connection plate is a solid structure or a void-containing structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111081397.8A CN113855200B (en) | 2021-09-15 | 2021-09-15 | Cervical vertebra rear road single door opening fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111081397.8A CN113855200B (en) | 2021-09-15 | 2021-09-15 | Cervical vertebra rear road single door opening fixture |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113855200A CN113855200A (en) | 2021-12-31 |
| CN113855200B true CN113855200B (en) | 2023-07-04 |
Family
ID=78995991
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111081397.8A Active CN113855200B (en) | 2021-09-15 | 2021-09-15 | Cervical vertebra rear road single door opening fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113855200B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102335037A (en) * | 2011-07-19 | 2012-02-01 | 上海拓腾医疗器械有限公司 | Vertebral plate steel plate for cervical vertebral body |
| CN104207830A (en) * | 2014-09-22 | 2014-12-17 | 金国鑫 | Vertebral canal expanding fusion device |
| CN205903299U (en) * | 2016-06-29 | 2017-01-25 | 丽水市中心医院 | Cervical vertebra way of escape hybridization surgical drage opens door and connects titanium board |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4100890B2 (en) * | 2001-09-11 | 2008-06-11 | ペンタックス株式会社 | Lingual spacer |
| US9480503B2 (en) * | 2002-01-03 | 2016-11-01 | Rohit Khanna | Universal laminoplasty implant |
| US20050131412A1 (en) * | 2003-10-20 | 2005-06-16 | Boris Olevsky | Bone plate and method for using bone plate |
| JP2007301244A (en) * | 2006-05-12 | 2007-11-22 | Pentax Corp | Spacer and production method of spacer |
| US8926664B1 (en) * | 2006-11-07 | 2015-01-06 | Globus Medical, Inc. | Laminoplasty fixaction devices |
| US9717541B2 (en) * | 2015-04-13 | 2017-08-01 | DePuy Synthes Products, Inc. | Lamina implants and methods for spinal decompression |
| CN205434005U (en) * | 2015-12-30 | 2016-08-10 | 上海浦卫医疗器械厂有限公司 | Neck intervertebral disc false body |
| CN110353793A (en) * | 2019-07-26 | 2019-10-22 | 北京市春立正达医疗器械股份有限公司 | Posterior cervical follows closely board fixer |
| CN112107355A (en) * | 2020-09-25 | 2020-12-22 | 北京大学第三医院（北京大学第三临床医学院） | Cervical vertebra fixing device that opens door |
| CN113384333A (en) * | 2021-07-05 | 2021-09-14 | 天津市康尔医疗器械有限公司 | Vertebral body locking plate |
-
2021
- 2021-09-15 CN CN202111081397.8A patent/CN113855200B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102335037A (en) * | 2011-07-19 | 2012-02-01 | 上海拓腾医疗器械有限公司 | Vertebral plate steel plate for cervical vertebral body |
| CN104207830A (en) * | 2014-09-22 | 2014-12-17 | 金国鑫 | Vertebral canal expanding fusion device |
| CN205903299U (en) * | 2016-06-29 | 2017-01-25 | 丽水市中心医院 | Cervical vertebra way of escape hybridization surgical drage opens door and connects titanium board |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113855200A (en) | 2021-12-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2537040C (en) | Captured-graft laminoplasty implants | |
| EP1420709B1 (en) | Unilateral laminoplasty implants | |
| US20190192140A1 (en) | Superelastic bone compression staple | |
| CN202365903U (en) | Cervical spinal canal forming bridge | |
| US20100063590A1 (en) | Laminoplasty implant | |
| CN105193524A (en) | Stabilizer used between spine plates | |
| CN113855200B (en) | Cervical vertebra rear road single door opening fixture | |
| DE60042817D1 (en) | Endstück für knochen-fusionsimplantat | |
| CN205007075U (en) | Artificial lamina and canalis spinalis expansion instrument | |
| CN215960214U (en) | Cervical vertebra posterior approach single-door fixed object | |
| CN212699050U (en) | Multifunctional titanium net scissors | |
| CN211213446U (en) | Device for supporting, fixing and fusing vertebral plates | |
| CN213190326U (en) | Bone reconstruction connection structure based on tenon-and-mortise fixation | |
| CN209899671U (en) | Self-fixing artificial vertebral body for anterior cervical approach | |
| CN208573808U (en) | A kind of titanium plate for laminoplasty | |
| CN215606188U (en) | Facet joint fixation system | |
| CN112107355A (en) | Cervical vertebra fixing device that opens door | |
| CN208582487U (en) | A kind of fixed device of the minimally invasive Laminoplasty of double door | |
| CN208640981U (en) | A kind of upper cervical spine artificial vertebral body support device | |
| CN213697143U (en) | Cervical vertebra fixing device that opens door | |
| CN219109856U (en) | Door-opening side fusion plate and fusion plate nailing rod system | |
| CN215130942U (en) | Fixing device for assisting oblique lateral intervertebral fusion | |
| CN215606189U (en) | Internal fixing titanium plate for expanding, forming and fusing cervical vertebra posterior approach jacking type vertebral canal | |
| CN219021765U (en) | Melt board nail stick system | |
| CN215228278U (en) | Fixing device between adjustable vertebral plate of chest lumbar vertebrae way of escape |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |