CN102715969B - Combined artificial vertebral body - Google Patents
Combined artificial vertebral body Download PDFInfo
- Publication number
- CN102715969B CN102715969B CN201210232087.6A CN201210232087A CN102715969B CN 102715969 B CN102715969 B CN 102715969B CN 201210232087 A CN201210232087 A CN 201210232087A CN 102715969 B CN102715969 B CN 102715969B
- Authority
- CN
- China
- Prior art keywords
- support piece
- vertebral body
- cover plate
- artificial vertebral
- inner support
- 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
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/44—Joints for the spine, e.g. vertebrae, spinal discs
-
- 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
- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
Landscapes
- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Neurology (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Prostheses (AREA)
Abstract
The invention relates to a combined artificial vertebral body and belongs to the technical field of internal fixation of implantation materials of vertebral column surgery. The combined artificial vertebral body is especially used for treating the diseases, such as spinal tumor, tuberculosis and fracture, and for replacing the vertebral body and recovering a normal physiological function of the vertebral column of human body. The combined artificial vertebral body comprises convex cover plates, concave cover plates, fixing bolts, an inner supporting block, an outer supporting block and a spring; the inner supporting block is mounted in an inner hole of the outer supporting block; the spring is inserted into the inner hole of the inner supporting block; the concave cover plates are mounted at the two ends of the outer supporting block through the fixing bolts; the two convex cover plates are respectively assembled on concave spherical surfaces of the two concave cover plates through convex spheres, thereby forming the combined artificial vertebral body; hemispheric convex spheres are arranged on one surfaces of the convex cover plates; sharp cylinders which are uniformly distributed and thin plates which are vertical to the convex cover plates and are provided with tooth-shaped grooves are arranged on the other surfaces of the convex cover plates; the concave spherical surfaces are respectively arranged on one surfaces of the concave cover plates; the concave spherical surfaces are arranged for accommodating the convex spheres of the convex cover plates; and a plurality of cylindrical footstep holes are arranged in one sides of the concave spherical surfaces of the concave cover plates.
Description
Technical field
What the present invention relates to is a kind of combined type artificial vertebral body, belongs to technique for fixing field in spinal surgery implant, is used in particular for treating the diseases such as tumor of spine, tuberculosis and fracture and recovers human spine's normal physiological function to substitute vertebral body.
Background technology
From artificial vertebral body in 1969 first for since clinical, artificial vertebral body is used widely clinically as the effective vertebral body substitute of a class, for the diseases such as treatment tumor of spine, tuberculosis and fracture bring great convenience, artificial vertebral body can not only recover preferably the dissect physiology structure of spinal column and correct kyphosis deformity, spinal stability is rebuild to effect and also give prominence to.Along with spinal vertebral is rebuild and the development of fusion technology, artificial vertebral body is as a kind of vertebral body substitute, for doctor and patient provide more treatment to select.But show by some biomechanics tests and clinical practice, in treatment, still there are some defects in traditional artificial vertebral body, artificial vertebral body Shortcomings aspect axial-rotation for example, firm not when upper hypocentrum is combined, cause that implant is deviate from, sedimentation etc., do not reach satisfied bone and merge, poor stability at a specified future date can lose the normal flexibility of a part of spinal column simultaneously.
Summary of the invention
The object of the invention is provides a kind of combined type artificial vertebral body for above-mentioned weak point, owing to thering is dished cover plate, recessed cover plate, set bolt, inner support piece, outer support piece and spring, after this combined type artificial vertebral body of Operation, vertebral body function after excision is substituted by artificial vertebral body; the upper and lower healthy vertebral body of diseased region is supported limbs by artificial vertebral body, keeps the physiological camber of human normal.
Combined type artificial vertebral body of the present invention is to take following technical scheme to realize:
Combined type artificial vertebral body comprises dished cover plate, recessed cover plate, set bolt, inner support piece, outer support piece and spring.Described inner support piece is arranged in outer support piece internal holes, spring is inserted in inner support piece endoporus, back-up block two ends adopt respectively set bolt that recessed cover plate is installed outside, and two dished cover plates are assembled to respectively by protruding spheroid on the concave spherical surface of two recessed cover plates, form combined type artificial vertebral body.
Described dished cover plate is set to circular slab, square plate or sketch plate, and dished cover plate is simultaneously provided with hemispheric protruding spheroid, and dished cover plate another side is provided with equally distributed sharp cylinder and perpendicular to dished cover plate and be provided with the thin plate of serrate slot; Described recessed cover plate is arranged to the circle of same dished cover plate appearance similar, square or sketch plate, recessed cover plate is simultaneously provided with a concave spherical surface, described concave spherical surface is arranged to hold the protruding spheroid of dished cover plate, concave spherical surface one side of recessed cover plate is provided with several cylinder stepped holes, in described cylinder stepped hole, macropore (counterbore) is arranged on concave spherical surface one side, described macropore (counterbore) can hold the cylinder step of set bolt, and described cylinder stepped hole is at least provided with 2; Described recessed cover plate another side is provided with several locating rods, for pocketed springs, places restrictions on spring and whole combined type artificial Vertebral Compression position, prevents overcompression.Described locating rod is at least provided with 2.Described locating rod can be arranged to cylinder, cylindroid, square column or other Special-Shaped Column, described set bolt one end is set to threaded rod, the set bolt other end is provided with the cylinder step that diameter is greater than threaded rod, described threaded rod is set to pass by the cylinder stepped hole of recessed cover plate, and the cylinder step of described set bolt is arranged to insert the macropore in the cylinder stepped hole of recessed cover plate and can not be passed small cylindrical opening, described inner support piece is set to tubulose, described inner support piece is provided with endoporus, described inner support piece tubular shape and endoporus all can be set to circle, square, long waist shaped or other abnormity, inner support piece wherein one end is provided with raised step, and on inner support piece other end end face, being provided with several screwed holes one, described screwed hole one can match with the threaded rod of set bolt, described outer support piece is set to the similar tubulose of same inner support piece, described outer support piece 5 tubular shape and internal holes profile all can be set to circle, square, long waist shaped or other abnormity, the internal holes of outer support piece be arranged to hold inner support piece through but outer support piece internal holes one end is provided with step in a hole, in described hole, step is arranged to hold the raised step of inner support piece, the end face that outer support piece arranges one end of raised step is provided with several screwed holes two, described screwed hole two is at least provided with 2, described screwed hole two can match with the threaded rod of set bolt, outer support piece outer tube surface is provided with several screwed holes three, described spring setting is set to circle, and spring is arranged to can insert the internal holes of inner support piece and can be enclosed within on the locating rod of recessed cover plate.
This kind of combined type artificial vertebral body is assembled as follows: described inner support piece is threaded the one end in hole and passes from one end of the porose interior step of outer support piece band, spring is inserted in inner support piece internal holes, the one end that is threaded hole at inner support piece and outer support piece adopts respectively hold-down screw that recessed cover plate is installed, install and spring is set to respectively on the stock of recessed cover plate simultaneously, then two dished cover plates are fitted on by protruding spheroid on the concave spherical surface of two recessed cover plates, form thus a kind of combined type artificial vertebral body.
Operation principle
A kind of combined type artificial vertebral body of the present invention is implanted respectively between the upper hypocentrum of vertebral body by two dished cover plates, sharp cylinder on dished cover plate and be inserted into and play fixation in vertebral body with the thin plate of serrate slot, other assembly is arranged in the middle of two dished cover plates, protruding spheroid and concave spherical surface by dished cover plate and recessed cover plate retrain its position, after whole artificial vertebral body implant into body, sphere-contact by dished cover plate and recessed cover plate can be realized certain spinfunction, simultaneously by the spring of this artificial vertebral body inside, can realize contraction to a certain degree or strut function, in addition if needed, the screwed hole of outer support piece pipe face can be fixed by conventional pedicle screw, make artificial vertebral body be difficult for deviating from vertebral body.After this combined type artificial vertebral body of Operation, the effect of spring can be modeled as compression or the stretch function of intervertebral disc, and the cooperation of convex-concave sphere can be simulated the distortion function of intervertebral disc, by these simulations, maximize the function of going back archecenra, make artificial vertebral body function closer to the function of formal vertebral body.Not only can recover the normal physiological height treatment disease of spinal column, retain the mobility of part vertebral body simultaneously, make vertebral body keep stable, reduce the risk of closing on the excessive generation complication of sections vertebral body pressure.
Advantage of the present invention:
A kind of combined type artificial vertebral body of the present invention is reasonable in design, compact conformation, owing to thering is dished cover plate, recessed cover plate, set bolt, inner support piece, outer support piece and spring, after this combined type artificial vertebral body of Operation, vertebral body function after excision is substituted by artificial vertebral body; the upper and lower healthy vertebral body of diseased region is supported limbs by artificial vertebral body, keeps the physiological camber of human normal.The axial activeness of this combined type artificial vertebral body has been avoided the risk of the complication such as the excessive generation degeneration of single vertebral body bearing capacity, make uniform stressed between each vertebral body and artificial vertebral body, simultaneously the concavo-convex sphere of combined type artificial vertebral body has guaranteed that normal vertebral body and artificial vertebral body be shown in the probability of axial-rotation, make diseased region still keep certain rotary moveable, largely alleviated the part physiological activity that patient loses because of operation impact, can make the life that patient is more healthy.
Accompanying drawing explanation
In order to understand better the present invention and to understand practical application of the present invention, the following drawings is provided herein, and described accompanying drawing has been carried out to reference.Should be noted that given accompanying drawing only as an example with preferred implementation, the scope defined in restriction explanation and claims.
Fig. 1 is the assembling decomposing schematic representation of a kind of combined type artificial vertebral body.
Fig. 2 is the confined state schematic diagram of a kind of combined type artificial vertebral body.
Fig. 3 is the dished cover plate front view of a kind of combined type artificial vertebral body.
Fig. 4 is the dished cover plate left view of a kind of combined type artificial vertebral body.
Fig. 5 is the recessed cover plate front view of a kind of combined type artificial vertebral body.
Fig. 6 is the recessed cover plate A-A cutaway view of a kind of combined type artificial vertebral body of Fig. 5.
Fig. 7 is the recessed cover plate top view of a kind of combined type artificial vertebral body.
Fig. 8 is the inner support piece front view of a kind of combined type artificial vertebral body.
Fig. 9 is the inner support piece B-B cutaway view of a kind of combined type artificial vertebral body of Fig. 8.
Figure 10 is the inner support piece top view of a kind of combined type artificial vertebral body.
Figure 11 is the outer support piece front view of a kind of combined type artificial vertebral body.
Figure 12 is the outer support piece C-C cutaway view of a kind of combined type artificial vertebral body.
Figure 13 is the outer support piece top view of a kind of combined type artificial vertebral body.
Figure 14 is the set bolt schematic diagram of a kind of combined type artificial vertebral body.
The specific embodiment
With reference to accompanying drawing 1～14, a kind of combined type artificial vertebral body comprises dished cover plate 1, recessed cover plate 3, set bolt 2, inner support piece 4, outer support piece 5 and spring 6.Described inner support piece 4 is arranged in outer support piece 5 internal holes, spring 6 is inserted in inner support piece endoporus 41, back-up block 5 two ends adopt respectively set bolt 2 that recessed cover plate 3 is installed outside, two dished cover plates 1 are assembled to respectively by protruding spheroid 14 on the concave spherical surface 31 of two recessed cover plates 3, form combined type artificial vertebral body.
Described dished cover plate 1 is set to circular slab, square plate or sketch plate 11.Described dished cover plate 1 one side is provided with hemispheric protruding spheroid 14, and dished cover plate 1 another side is provided with equally distributed sharp cylinder 12 and perpendicular to dished cover plate and be provided with the thin plate 13 of serrate slot; Described recessed cover plate 3 is arranged to the circle of same dished cover plate 1 appearance similar, square or sketch plate.Described recessed cover plate 3 one sides are provided with a concave spherical surface 31, described concave spherical surface 31 is arranged to hold the protruding spheroid 14 of dished cover plate 1, concave spherical surface one side of recessed cover plate 3 is provided with several cylinder stepped holes 32, in described cylinder stepped hole 32, macropore (counterbore) 34 is arranged on concave spherical surface 31 1 sides, described macropore 34 can hold the cylinder step 22 of set bolt 2, and described cylinder stepped hole is at least provided with 2; Described recessed cover plate 3 another sides are provided with several locating rods 33, for pocketed springs, place restrictions on spring 6 and whole combined type artificial Vertebral Compression position, prevent overcompression.Described locating rod 33 can be arranged to cylinder, cylindroid, square column or other Special-Shaped Column.Described locating rod 33 is at least provided with 2.Described set bolt 2 one end are set to threaded rod 21, set bolt 2 other ends are provided with the cylinder step 22 that diameter is greater than threaded rod, described threaded rod 2 is set to pass by the cylinder stepped hole 32 of recessed cover plate 3, and the cylinder step 22 of described set bolt 2 is arranged to insert the macropore (counterbore) 34 in the cylinder stepped hole 32 of recessed cover plate 3 and can not be passed small cylindrical opening.Described inner support piece 4 is set to tubulose, described inner support piece 4 is provided with endoporus 41, described inner support piece 4 tubular shape and endoporus 41 all can be set to circle, square, long waist shaped or other abnormity, inner support piece 4 wherein one end is provided with raised step 42, and on inner support piece 4 other end end faces 43, be provided with several screwed holes 1, described screwed hole 1 can match with the threaded rod 21 of set bolt 2, and described screwed hole 1 is at least provided with 2; Described outer support piece 5 is set to the similar tubulose of same inner support piece 4, and described outer support piece 5 tubular shape 53 and internal holes profile all can be set to circle, square, long waist shaped or other abnormity; The internal holes of outer support piece 5 be arranged to hold inner support piece 4 through but outer support piece 5 internal holes one end are provided with step 52 in a hole, in described hole, step 52 is arranged to hold the raised step 42 of inner support piece 4, the end face of outer support piece 5 raised step one end is provided with several screwed holes 2 51, described screwed hole 2 51 is at least provided with 2, described screwed hole 2 51 can match with the threaded rod 21 of set bolt 2, outer support piece 5 outer tube surfaces 53 are provided with several screwed holes 3 55, and described screwed hole 3 55 is at least provided with 2; Described spring 6 is set to circle, and spring 6 is arranged to can insert the endoporus 41 of inner support piece 4 and can be enclosed within on the locating rod 33 of recessed cover plate 3.Described spring 6 is at least provided with 2.
This a kind of combined type artificial vertebral body is assembled as follows: inner support piece 4 is threaded the one end in hole 44 and passes with one end of porose interior step 52 from outer support piece 5, spring 6 is inserted in inner support piece 4 endoporus 41, the one end that is threaded hole 1 at inner support piece 4 adopts hold-down screw 2 that recessed cover plate 3 is installed, back-up block 5 is threaded the recessed cover plate 3 of one end employing hold-down screw 2 installation in hole 2 51 outside, install is set to spring 6 respectively on the locating rod 33 of recessed cover plate 3 simultaneously, then two dished cover plates 1 are fitted on the concave spherical surface 31 of two recessed cover plates 3 by protruding spheroid 14, form thus a kind of combined type artificial vertebral body.
Claims (9)
1. a combined type artificial vertebral body, is characterized in that: comprise dished cover plate, recessed cover plate, set bolt, inner support piece, outer support piece and spring; Described inner support piece is arranged in outer support piece internal holes, spring is inserted in inner support piece endoporus, back-up block two ends adopt respectively set bolt that recessed cover plate is installed outside, and two dished cover plates are assembled to respectively by protruding spheroid on the concave spherical surface of two recessed cover plates, form combined type artificial vertebral body.
2. a kind of combined type artificial vertebral body according to claim 1, is characterized in that: described dished cover plate is simultaneously provided with hemispheric protruding spheroid, and dished cover plate another side is provided with equally distributed sharp cylinder and perpendicular to dished cover plate and be provided with the thin plate of serrate slot.
3. a kind of combined type artificial vertebral body according to claim 1 and 2, is characterized in that: described dished cover plate is set to circular slab, square plate or sketch plate.
4. a kind of combined type artificial vertebral body according to claim 1, it is characterized in that: described recessed cover plate is simultaneously provided with a concave spherical surface, described concave spherical surface is arranged to hold the protruding spheroid of dished cover plate, concave spherical surface one side of recessed cover plate is provided with several cylinder stepped holes, in described cylinder stepped hole, macropore is arranged on concave spherical surface one side, and described macropore can hold the cylinder step of set bolt; Described recessed cover plate another side is provided with several locating rods, for pocketed springs; Described cylinder stepped hole is at least provided with 2; Described locating rod is at least provided with 2.
5. a kind of combined type artificial vertebral body according to claim 4, is characterized in that: described locating rod is arranged to cylinder, cylindroid, square column or other Special-Shaped Column.
6. a kind of combined type artificial vertebral body according to claim 1, it is characterized in that: described inner support piece is set to tubulose, inner support piece is provided with endoporus, described inner support piece tubular shape and endoporus are all set to circle, square, long waist shaped or other abnormity, inner support piece wherein one end is provided with raised step, and on inner support piece other end end face, being provided with several screwed holes one, described screwed hole one can match with the threaded rod of set bolt.
7. a kind of combined type artificial vertebral body according to claim 1, is characterized in that: described outer support piece is set to the similar tubulose of same inner support piece.
8. a kind of combined type artificial vertebral body according to claim 1, it is characterized in that: described outer support piece tubular shape and internal holes profile are all set to circle, square, long waist shaped or other abnormity, the internal holes of outer support piece is arranged to hold inner support piece, back-up block internal holes one end is provided with step in a hole outside, in described hole, step is arranged to hold the raised step of inner support piece, the end face that outer support piece arranges one end of raised step is provided with several screwed holes two, described screwed hole two can match with the threaded rod of set bolt, outer support piece outer tube surface is provided with several screwed holes three.
9. a kind of combined type artificial vertebral body according to claim 1, is characterized in that: described spring is set to circle, and spring is arranged to can insert the internal holes of inner support piece and can be enclosed within on the locating rod of recessed cover plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210232087.6A CN102715969B (en) | 2012-07-06 | 2012-07-06 | Combined artificial vertebral body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210232087.6A CN102715969B (en) | 2012-07-06 | 2012-07-06 | Combined artificial vertebral body |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102715969A CN102715969A (en) | 2012-10-10 |
| CN102715969B true CN102715969B (en) | 2014-10-08 |
Family
ID=46941934
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210232087.6A Active CN102715969B (en) | 2012-07-06 | 2012-07-06 | Combined artificial vertebral body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102715969B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9700425B1 (en) | 2011-03-20 | 2017-07-11 | Nuvasive, Inc. | Vertebral body replacement and insertion methods |
| CN103144101B (en) * | 2013-03-26 | 2015-10-07 | 上海大学 | A kind of flexible body of bio-robot |
| US10687960B2 (en) | 2017-04-25 | 2020-06-23 | Second Affiliated Hospital Of Second Military Mediccal University, Shanghai | Assembled vertebral body |
| CN106983585B (en) * | 2017-04-28 | 2019-01-08 | 北京爱康宜诚医疗器材有限公司 | Centrum prosthese |
| CN107485470B (en) * | 2017-09-12 | 2019-07-12 | 张坤 | A kind of cervical vertebra space dynamic stabilizing implanting apparatus for medical use in orthopedics department |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1053004A (en) * | 1991-01-18 | 1991-07-17 | 王芬 | The adjustable artificial vertebral body of L type |
| EP0950389A2 (en) * | 1998-04-16 | 1999-10-20 | Aesculap AG & Co. KG | Intervertebral fusion implant |
| CN101115450A (en) * | 2004-07-09 | 2008-01-30 | 先锋实验室公司 | Skeletal reconstruction device |
| CN102240234A (en) * | 2011-06-29 | 2011-11-16 | 西安交通大学 | Adjustable artificial cervical vertebra and intervertebral connecting complex |
| CN202875538U (en) * | 2012-07-06 | 2013-04-17 | 常州市康辉医疗器械有限公司 | Combined artificial vertebral body |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB0425546D0 (en) * | 2004-11-20 | 2004-12-22 | Wang Dajue | Spinal prostheses |
-
2012
- 2012-07-06 CN CN201210232087.6A patent/CN102715969B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1053004A (en) * | 1991-01-18 | 1991-07-17 | 王芬 | The adjustable artificial vertebral body of L type |
| EP0950389A2 (en) * | 1998-04-16 | 1999-10-20 | Aesculap AG & Co. KG | Intervertebral fusion implant |
| CN101115450A (en) * | 2004-07-09 | 2008-01-30 | 先锋实验室公司 | Skeletal reconstruction device |
| CN102240234A (en) * | 2011-06-29 | 2011-11-16 | 西安交通大学 | Adjustable artificial cervical vertebra and intervertebral connecting complex |
| CN202875538U (en) * | 2012-07-06 | 2013-04-17 | 常州市康辉医疗器械有限公司 | Combined artificial vertebral body |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102715969A (en) | 2012-10-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102715969B (en) | Combined artificial vertebral body | |
| US8353935B2 (en) | Flexible spine components having a concentric slot | |
| CN102240234B (en) | Adjustable artificial cervical vertebra and intervertebral connecting complex | |
| CN102319129A (en) | Fusion prosthesis | |
| CN202875538U (en) | Combined artificial vertebral body | |
| CN201445552U (en) | Dynamic spine internal fixation system | |
| CN107049562B (en) | A kind of double acting joint cervical prosthesis | |
| CN101601601A (en) | Dynamic spinal internal fixation system | |
| CN105105890A (en) | Cervical vertebrae inter-vertebral disc prosthesis | |
| CN101836907A (en) | Hard endplate and soft vertebral pulp integrated weaved artificial intervertebral disc prosthesis | |
| CN202069721U (en) | Integrally-woven artificial lumbar intervertebral prothesis of hard end plates and soft nucleus pulposus | |
| CN202128534U (en) | Expansion type cervical interbody fusion cage with buckle | |
| CN104799928A (en) | Spine board dynamic stabilizing system | |
| CN105078623B (en) | Biological self-locking artificial intervertebral disk system and application thereof | |
| CN203988502U (en) | A kind of dynamically artificial vertebral body | |
| CN104323846A (en) | Universal elastic fixed rod | |
| CN204410947U (en) | A kind of can the vertebra dynamic pedicle screw system of fine motion | |
| CN103300948B (en) | A kind of Ω type cervical artificial disc implanting prosthetic with the two-way retaining pawl of rhombus | |
| CN102551855B (en) | Dynamic and stable interspinous implanting device | |
| CN204410946U (en) | A kind of elastic vertebra dynamic pedicle screw system | |
| CN204971720U (en) | It is biological from artifical intervertebral disc system of lock | |
| CN103598909A (en) | Posterior spinal fixation instrument | |
| CN102319104B (en) | Spinal column correction bar with elastic structure | |
| Che et al. | Regenerating and repairing degenerative intervertebral discs by regulating the micro/nano environment of degenerative bony endplates based on low-tension mechanics | |
| CN213283599U (en) | Expandable interbody fusion cage |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |