CN111184565A - Anterior cervical self-locking fusion device - Google Patents
Anterior cervical self-locking fusion device Download PDFInfo
- Publication number
- CN111184565A CN111184565A CN202010156318.4A CN202010156318A CN111184565A CN 111184565 A CN111184565 A CN 111184565A CN 202010156318 A CN202010156318 A CN 202010156318A CN 111184565 A CN111184565 A CN 111184565A
- Authority
- CN
- China
- Prior art keywords
- fusion
- tenon
- tenon body
- locking
- anterior cervical
- 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.)
- Granted
Links
- 230000004927 fusion Effects 0.000 title claims abstract description 75
- 238000000576 coating method Methods 0.000 claims abstract description 10
- 239000011248 coating agent Substances 0.000 claims abstract description 8
- 238000005452 bending Methods 0.000 claims abstract description 6
- 239000011664 nicotinic acid Substances 0.000 claims description 6
- 229910001069 Ti alloy Inorganic materials 0.000 claims description 3
- 229910052588 hydroxylapatite Inorganic materials 0.000 claims description 3
- XYJRXVWERLGGKC-UHFFFAOYSA-D pentacalcium;hydroxide;triphosphate Chemical compound [OH-].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O XYJRXVWERLGGKC-UHFFFAOYSA-D 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 abstract description 4
- 230000035876 healing Effects 0.000 abstract description 4
- 239000010959 steel Substances 0.000 abstract description 4
- 230000002349 favourable effect Effects 0.000 abstract description 2
- 210000000988 bone and bone Anatomy 0.000 description 7
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 3
- 208000027418 Wounds and injury Diseases 0.000 description 3
- 230000006837 decompression Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000010354 integration Effects 0.000 description 3
- 229910052719 titanium Inorganic materials 0.000 description 3
- 239000010936 titanium Substances 0.000 description 3
- 206010041591 Spinal osteoarthritis Diseases 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 208000036319 cervical spondylosis Diseases 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000002980 postoperative effect Effects 0.000 description 2
- 230000035807 sensation Effects 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 208000005801 spondylosis Diseases 0.000 description 2
- 230000009747 swallowing Effects 0.000 description 2
- 208000010392 Bone Fractures Diseases 0.000 description 1
- 208000019505 Deglutition disease Diseases 0.000 description 1
- 239000004696 Poly ether ether ketone Substances 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- JUPQTSLXMOCDHR-UHFFFAOYSA-N benzene-1,4-diol;bis(4-fluorophenyl)methanone Chemical compound OC1=CC=C(O)C=C1.C1=CC(F)=CC=C1C(=O)C1=CC=C(F)C=C1 JUPQTSLXMOCDHR-UHFFFAOYSA-N 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 210000003238 esophagus Anatomy 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000005036 nerve Anatomy 0.000 description 1
- 229920002530 polyetherether ketone Polymers 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000002271 resection Methods 0.000 description 1
- 108010048734 sclerotin Proteins 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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
- A61B17/7071—Implants for expanding or repairing the vertebral arch or wedged between laminae or pedicles; 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
- 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
- A61B17/7094—Solid vertebral fillers; devices for inserting such fillers
-
- 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
- A61B17/7097—Stabilisers comprising fluid filler in an implant, e.g. balloon; devices for inserting or filling such implants
-
- 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
- A61F2/4455—Joints for the spine, e.g. vertebrae, spinal discs for the fusion of spinal bodies, e.g. intervertebral fusion of adjacent spinal bodies, e.g. fusion cages
-
- 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
- A61B2017/7073—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant with intervertebral connecting element crossing an imaginary spinal median surface
Landscapes
- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Neurology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- General Health & Medical Sciences (AREA)
- Veterinary Medicine (AREA)
- Heart & Thoracic Surgery (AREA)
- Public Health (AREA)
- Animal Behavior & Ethology (AREA)
- Molecular Biology (AREA)
- Medical Informatics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Vascular Medicine (AREA)
- Prostheses (AREA)
Abstract
The invention discloses a cervical vertebra anterior self-locking fusion device, which comprises a fusion body of an arc structure, wherein two ends of the fusion body are sealed by end covers, the interior of the fusion body is of a hollow structure, the end covers at the two ends of the fusion body are respectively provided with a left tenon body and a right tenon body, the left tenon body and the right tenon body respectively form an angle of 45 degrees with the bending direction of the fusion body, the left tenon body and the right tenon body are mutually vertical, and the left tenon body and the right tenon body are respectively provided with two locking screw holes; the tenons at the two ends are locked and fixed, and are combined with mortise and tenon self-locking, so that the device has stronger early fixing strength compared with a steel plate fusion device, and the contact surface of the surface coating is favorable for healing and preventing sinking.
Description
Technical Field
The invention relates to the technical field of medical instruments, and particularly belongs to an anterior cervical self-locking fusion device.
Background
Cervical spondylosis is common disease in recent years, cervical vertebra anterior decompression fusion internal fixation is a cervical spondylosis treatment and classic operation method, cervical marrow and nerves in a cervical vertebra can be thoroughly decompressed, normal height of intervertebral space and normal physiological curvature of cervical vertebra can be recovered as far as possible, and stability of an operation segment is guaranteed by combining bone grafting fusion. The Cervical vertebra Anterior disc extirpation vertebral canal decompression bone grafting Fusion internal fixation (ACDF) and Cervical vertebra Anterior vertebral body sub-total resection vertebral canal decompression bone grafting Fusion internal fixation (ACCF) bone grafting materials develop from initial autogenous bone to PEEK material titanium cage, and the like, can not be fixed by combining a steel plate, often generates titanium cage sinking and internal fixation failure, and inevitably causes postoperative dysphagia and foreign body sensation due to the occupation of the titanium plate on the rear wall of the esophagus; in order to reduce the occurrence of the complications and improve the operation effect, the ZERO-section fusion cage (ZERO-P) and the self-stabilization type intervertebral fusion system have the advantages of simple operation, small operation wound, short operation time, small bleeding amount in the operation, quick postoperative recovery and the like, accord with the development concept of minimally invasive, but are extremely difficult to operate at the upper cervical vertebra or the lower cervical vertebra, can not effectively recover the good standing line of the cervical vertebra, and the application price of the multi-section multi-fusion cage is extremely expensive, so that the clinical use of the multi-section multi-fusion cage is limited. Therefore, a properly designed anterior cervical fixation device is needed to effectively address this problem.
Disclosure of Invention
The invention aims to provide a self-locking fusion device for anterior cervical vertebrae, which overcomes the defects of the prior art.
In order to solve the problems, the technical scheme adopted by the invention is as follows:
the anterior cervical self-locking fusion device comprises a fusion body of an arc structure with two ends sealed by end covers, wherein the interior of the fusion body is of a hollow structure, the end covers at the two ends of the fusion body are respectively provided with a left tenon body and a right tenon body, the left tenon body and the right tenon body are respectively at an angle of 45 degrees with the bending direction of the fusion body, the left tenon body and the right tenon body are mutually vertical, and the left tenon body and the right tenon body are respectively provided with two locking screw holes.
Furthermore, the fusion body is of a cylindrical structure, the fusion body, the end cover, the left tenon body and the right tenon body are of an integral structure, and the left tenon body and the right tenon body are respectively vertical to the end cover.
Furthermore, the top end of the bending part of the fusion body is provided with two positioning screw holes, and the fusion body and the end cover are provided with a plurality of hollow holes.
Furthermore, the fusion body is provided with an opening.
Further, the opening is positioned on the side of the fusion body.
Furthermore, the surfaces of the fusion body, the end cover, the left tenon body and the right tenon body are coated with bionic coatings.
Furthermore, the bionic coating is a hydroxyapatite coating.
Furthermore, the fusion body, the left tenon body and the right tenon body are made of titanium alloy.
Further, the width of the left tenon body and the right tenon body is the same as the outer diameter of the fusion body.
Compared with the prior art, the invention has the following implementation effects:
1. the self-locking fusion device is characterized in that two locking screw holes are respectively arranged on the left tenon body and the right tenon body according to the self radian of a force line of the cervical vertebra, and the left tenon body and the right tenon body are mutually vertical, so that shearing under the action of stress is effectively reduced, and fusion failure at two ends is avoided; the left tenon body and the right tenon body at two ends are locked and fixed, and are combined with tenon-and-mortise self-locking, so that the early fixing strength is stronger than that of a steel plate fusion device, and the contact surface of the surface coating is favorable for healing and preventing sinking.
2. The bionic coating is coated on the surfaces of the fusion body, the left tenon body and the right tenon body, healing is facilitated, a bone grows into the fusion body earlier in the later period, the fusion is quicker, the strength is higher, the fusion body is better embedded into a vertebral body, zero incisura is really achieved, swallowing difficulty is reduced, and foreign body sensation is relieved.
3. Even if a multi-segment vertebral body is adopted, the single body can be integrally implanted, the operation is simple and convenient, the wound is small, and the advantages are more obvious when segments are more; the locking pins balance the lamina design and are simpler to operate than ZERO-P, even for the superior or inferior vertebral bodies.
Drawings
Fig. 1 is a perspective view of the present invention.
Fig. 2 is a front view of the present invention.
Fig. 3 is a top view of the present invention.
Fig. 4 is a bottom view of the present invention.
Fig. 5 is a left side view of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation to be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in figures 1-5, the self-locking fusion device for anterior cervical vertebrae comprises a fusion body 1 with an arc structure, two ends of which are sealed by end covers, wherein the fusion body 1 is in a cylindrical structure, the inner side of the arc structure of the fusion body 1 is a circular arc with the radius of 20cm, the length of the fusion body 1 is 20-50mm, the thickness of the fusion body 1 is 2mm, the interior of the fusion body 1 is in a hollow structure, the end covers at two ends of the fusion body 1 are respectively provided with a left tenon body 2 and a right tenon body 3 which are vertical to the end covers, the width of the left tenon body 2 and the width of the right tenon body 3 are the same as the outer diameter of the fusion body 1, the end covers, the left tenon body 2 and the right tenon body 3 are made of titanium alloy, the left tenon body 2 and the right tenon body 3 are respectively at an angle of 45 degrees with the bending direction of the fusion body 1, the left tenon body 2 and the right tenon body 3 are mutually vertical, the left tenon body 2 and the right tenon body 3 are respectively provided, be equipped with two locking screw holes 4 on the left side tenon body 2 and the right side tenon body 3 respectively, left side tenon body 2 and right side tenon body 3 mutually perpendicular, the installation back, left side tenon body 2 and right side tenon body 3 can bear the stress on the equidirectional, reduce shearing under the stress action effectively and avoid both ends to fuse the failure, and the left side tenon body in both ends and the right side tenon body locking are fixed, combine the mortise auto-lock, fuse the ware than the steel sheet and have stronger early fixed strength.
In addition, in order to improve the fusion growth with the human body as soon as possible after the device is implanted, the surfaces of the fusion body 1, the left tenon body 2 and the right tenon body 3 are coated with the hydroxyapatite with the bionic coating, and the thickness is 50 microns, so that the healing and the sinking prevention effects are facilitated.
In addition, the device of the invention can be implanted integrally by a single body even if a multi-segment vertebral body is adopted, the operation is simple and convenient, the wound is small, the contact area is large, the fusion part is less, the fusion rate is higher, the sinking rate is greatly reduced, and the advantages are more obvious when segments are more; the installation of the locking screw in the positioning screw hole 11 can balance the design of the vertebral plate, and the operation is simpler than that of ZERO-P even if the vertebral body is arranged above or below.
In the actual use and production process, the device mainly comprises 3 specifications which are divided into three types of 12mm, 14mm and 16mm according to the outer diameter of the fusion body 1, wherein the left tenon body 2 and the right tenon body 3 of the 3 specifications are 4mm or 5mm in length and 2mm or 3mm in thickness.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The anterior cervical self-locking fusion device is characterized by comprising a fusion body of an arc-shaped structure with two ends sealed by end covers, wherein the interior of the fusion body is of a hollow structure, the end covers at the two ends of the fusion body are respectively provided with a left tenon body and a right tenon body, the left tenon body and the right tenon body are respectively at an angle of 45 degrees with the bending direction of the fusion body, the left tenon body and the right tenon body are mutually vertical, and the left tenon body and the right tenon body are respectively provided with two locking screw holes.
2. The anterior cervical self-locking fusion device of claim 1, wherein: the integrated body is of a cylindrical structure, the integrated body, the end cover, the left tenon body and the right tenon body are of an integrated structure, and the left tenon body and the right tenon body are respectively vertical to the end cover.
3. The anterior cervical self-locking fusion device according to claim 1 or 2, characterized in that: the top end of the bending part of the fusion body is provided with two positioning screw holes, and the fusion body and the end cover are provided with a plurality of hollow holes.
4. The anterior cervical self-locking fusion device of claim 3, wherein: the fusion body is provided with an opening.
5. The anterior cervical self-locking fusion device of claim 4, wherein: the opening is positioned on the side surface of the fusion body.
6. The anterior cervical self-locking fusion device of claim 1, wherein: the surfaces of the fusion body, the left tenon body and the right tenon body are coated with bionic coatings.
7. The anterior cervical self-locking fusion device of claim 6, wherein: the bionic coating is a hydroxyapatite coating.
8. The anterior cervical self-locking fusion device of claim 1, wherein: the fusion body, the left tenon body and the right tenon body are made of titanium alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010156318.4A CN111184565B (en) | 2020-03-09 | 2020-03-09 | Anterior cervical self-locking fusion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010156318.4A CN111184565B (en) | 2020-03-09 | 2020-03-09 | Anterior cervical self-locking fusion device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111184565A true CN111184565A (en) | 2020-05-22 |
| CN111184565B CN111184565B (en) | 2024-07-02 |
Family
ID=70702925
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010156318.4A Active CN111184565B (en) | 2020-03-09 | 2020-03-09 | Anterior cervical self-locking fusion device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111184565B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203749650U (en) * | 2014-02-28 | 2014-08-06 | 西安交通大学 | Dislocation prevention type non-fusion artificial cervical vertebra and intervertebral disc system |
| CN104068949A (en) * | 2014-07-18 | 2014-10-01 | 山东威高骨科材料有限公司 | Cervical vertebra anterior zero incisura intervertebral fusion device |
| CN205286618U (en) * | 2015-12-30 | 2016-06-08 | 上海浦卫医疗器械厂有限公司 | Cervical vertebra interbody fusion cage |
| CN205569049U (en) * | 2016-03-21 | 2016-09-14 | 钟兵 | A internal fixation device for anterior cervical spine fuses |
| CN107157627A (en) * | 2017-05-17 | 2017-09-15 | 暨南大学 | Mortise and tenon type Thoracolumbar disk intervertebral fixer |
| KR20170120054A (en) * | 2017-10-16 | 2017-10-30 | 동국대학교 경주캠퍼스 산학협력단 | Cervical intervertebral cage with increased bone-contact and improved stability |
| CN109288571A (en) * | 2018-11-09 | 2019-02-01 | 中国人民解放军第二军医大学第二附属医院 | A kind of cervical vertebra natural height fixed plate |
| CN212186660U (en) * | 2020-03-09 | 2020-12-22 | 安徽医科大学附属阜阳医院 | Anterior cervical self-locking fusion device |
-
2020
- 2020-03-09 CN CN202010156318.4A patent/CN111184565B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203749650U (en) * | 2014-02-28 | 2014-08-06 | 西安交通大学 | Dislocation prevention type non-fusion artificial cervical vertebra and intervertebral disc system |
| CN104068949A (en) * | 2014-07-18 | 2014-10-01 | 山东威高骨科材料有限公司 | Cervical vertebra anterior zero incisura intervertebral fusion device |
| CN205286618U (en) * | 2015-12-30 | 2016-06-08 | 上海浦卫医疗器械厂有限公司 | Cervical vertebra interbody fusion cage |
| CN205569049U (en) * | 2016-03-21 | 2016-09-14 | 钟兵 | A internal fixation device for anterior cervical spine fuses |
| CN107157627A (en) * | 2017-05-17 | 2017-09-15 | 暨南大学 | Mortise and tenon type Thoracolumbar disk intervertebral fixer |
| KR20170120054A (en) * | 2017-10-16 | 2017-10-30 | 동국대학교 경주캠퍼스 산학협력단 | Cervical intervertebral cage with increased bone-contact and improved stability |
| CN109288571A (en) * | 2018-11-09 | 2019-02-01 | 中国人民解放军第二军医大学第二附属医院 | A kind of cervical vertebra natural height fixed plate |
| CN212186660U (en) * | 2020-03-09 | 2020-12-22 | 安徽医科大学附属阜阳医院 | Anterior cervical self-locking fusion device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111184565B (en) | 2024-07-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8048116B2 (en) | Facet joint prosthesis | |
| EP2477579B1 (en) | Intervertebral implant having extendable bone fixation members | |
| US9320615B2 (en) | Distractible intervertebral implant | |
| EP2209441B1 (en) | Vertebral body replacement device | |
| CN204600639U (en) | A kind of compound cervical vertebra vertebra inner fixing device | |
| CN201040010Y (en) | Full contact type vertebral column titanium netted bone grafting fusion device | |
| AU2008319065A1 (en) | Footplate member and a method for use in a vertebral body replacement device | |
| US20230190487A1 (en) | Flexible interbody spacer and methods for use | |
| CN117860445B (en) | Anterior cervical internal fixation system | |
| CN212186660U (en) | Anterior cervical self-locking fusion device | |
| GB2364643A (en) | Vertebral body replacement | |
| CN205286619U (en) | Inferior fusion system that cuts entirely of cervical vertebra centrum | |
| CN105411727A (en) | Adjustable interface type zero-notch supporting fusion fixed titanium mesh system for anterior cervical spine | |
| CN111184565A (en) | Anterior cervical self-locking fusion device | |
| US20170252182A1 (en) | Endcaps of a corpectomy cage | |
| CN216495884U (en) | Vertebral body prosthesis | |
| CN105078623A (en) | Biological self-locking artificial intervertebral disk system and application thereof | |
| CN204971720U (en) | It is biological from artifical intervertebral disc system of lock | |
| CN213722337U (en) | Self-resetting type atlantoaxial anterior dislocation anatomic template | |
| CN211325901U (en) | Human interbody fusion cage structure and human interbody surgical equipment | |
| CN211156491U (en) | Movable artificial vertebral body and cervical vertebra vertebral body | |
| CN215425323U (en) | Non-fusion artificial vertebral body | |
| CN221383733U (en) | Internal fixing device for spinous process vertebral lamina fusion reconstruction | |
| CN216060888U (en) | Fusion door-opening fixing device and spine internal fixing system | |
| CN205322555U (en) | Adjustable interface type zero-notch supporting fusion fixed titanium mesh system for anterior cervical spine |
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 |