CN202355458U - Fixing and anti-falling device mated with lower cervical spine anterior vertebral pedicle screw - Google Patents
Fixing and anti-falling device mated with lower cervical spine anterior vertebral pedicle screw Download PDFInfo
- Publication number
- CN202355458U CN202355458U CN2011204459140U CN201120445914U CN202355458U CN 202355458 U CN202355458 U CN 202355458U CN 2011204459140 U CN2011204459140 U CN 2011204459140U CN 201120445914 U CN201120445914 U CN 201120445914U CN 202355458 U CN202355458 U CN 202355458U
- Authority
- CN
- China
- Prior art keywords
- lower cervical
- hole
- pedicle screw
- cervical anterior
- screw
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Prostheses (AREA)
- Surgical Instruments (AREA)
Abstract
The utility model discloses a fixing and anti-falling device mated with a lower cervical spine anterior vertebral pedicle screw. The fixing and anti-falling device comprises a plate body, wherein the plate body is provided with two lower cervical spine anterior vertebral pedicle screw embedding holes mated with the lower cervical spine anterior vertebral pedicle screw; an outwards inclination angle of between 30 and 60 degrees is formed between each lower cervical spine anterior vertebral pedicle screw embedding hole and the vertical plane of the plate body, and a movable angle of between 0 and 15 degrees is formed between each lower cervical spine anterior vertebral pedicle screw embedding hole and the horizontal plane of the plate body; lower cervical spine anterior vertebral pedicle screw caps are positioned in the lower cervical spine anterior vertebral pedicle screw embedding holes, and the lower cervical spine anterior vertebral pedicle screw is matched with the plate body in a self-locked manner; and vertebral body screw embedding holes and standby fixing holes are formed in the plate body. The fixing and anti-falling device has the advantages of simple structure and wide application range, is used safely and can be mated with the lower cervical spine anterior vertebral pedicle screw.
Description
Technical field
This utility model relates to the fixedly technical field of anti-drop device of cervical vertebra, particularly a kind of lower cervical anterior pedicle screw matched and fixed anti-drop device.
Background technology
Adopt the restricted or partly restricted steel plate of anterior cervical vertebrae to combine the fixed report of vertebral body single-skin drum matter screw much more very to see both at home and abroad.But for this technology of lower cervical anterior pedicle screw, just be in the starting sections at present abroad, fragmentary case clinical report has only been arranged, rarely had anatomical research, iconography research and the biomechanics Research report of system.Domesticly then still be in the blank stage, so far, domestic basic research and clinical relevant report of not seeing as yet about the lower cervical anterior pedicle screw more has nothing to do in the report of design of lower cervical anterior pedicle screw matched and fixed anti-drop device and utilization.
The advantage of lower cervical anterior pedicle screw mainly is the biomechanics fixed performance that preceding road is good, and screw is can be from the leading edge of cervical vertebral body through and pass rear lateral mass rear side cortex, has good resistance to plucking to exert oneself.We estimate that the pedicle of vertebral arch utilization of preceding road has a extensive future, and the foreseeable future, each item basic research of this technology comprises that anatomy, iconography and biomechanics Research will be in full swing.In addition, also will be fully under way about this technological clinical research aspect, comprise that this technological practical operation method, utilization improve, the screw steel plate designs, patient with operation is followed up a case by regular visits to situation or the like.
The field of spinal surgery that is used in of anterior plate fixation is widely accepted, and the hold-down screw single-skin drum matter screws that adopt better for single-unit section patient with operation strength of fixation more.But for senile osteoporosis patient, the post-decompression patient of cervical vertebra multi-segmental, utilization single-skin drum matter vertebral body hold-down screw intensity is often relatively poor, causes the loosening failure of internal fixation easily, does not have relatively stable firm fixing means clinically so far.For senile fracture-dislocation of cervical spine patient; Often need the front and rear combined approach operation of row in principle; Effectively reduce pressure and combine the LOCATION OF PEDICLE SCREW FIXATION of the way of escape in preceding road, but most gerontal patient is difficult to bear the wound strike of front and rear combined approach because whole body internal organs compensation is relatively poor.This type patient that appears as of preceding road pedicle screw technology has brought Gospel, and simple anterior approach both can solve the problem completely that reduces pressure, and can solve the problem of stability maintenance again.Along with clinical principium practice utilization; We find since the lower cervical anterior pedicle screw to advance to follow closely angle bigger; Existing cervical steel plate can not adapt to the implantation and the supporting use of preceding road pedicle screw, and a lower cervical anterior pedicle screw of research design matched and fixed anti-drop device also necessary progressively to promote the use in clinical practice it.The design of lower cervical anterior pedicle screw matched and fixed anti-drop device and produce and will promote this technological further investigation of preceding road pedicle screw, help this technology successfully apply to as early as possible clinical, for extensive patients is benefited.
Summary of the invention
This utility model technical problem to be solved is the present situation to prior art, provide a kind of simple in structure, safe in utilization, of many uses, can with the matching used lower cervical anterior pedicle screw of lower cervical anterior pedicle screw matched and fixed anti-drop device.
This utility model solves the problems of the technologies described above the technical scheme that is adopted: lower cervical anterior pedicle screw matched and fixed anti-drop device; Comprise plate body; Wherein, Plate body is provided with at least two and implants the hole with the supporting lower cervical anterior pedicle of vertebral arch of lower cervical anterior pedicle screw, and the lower cervical anterior pedicle of vertebral arch is implanted hole and plate body sagittal plane and is 30 ° to 60 ° flare angles, horizontal planes and is 0 ° to 15 ° movable angle.
For optimizing technique scheme, the concrete measure of taking also comprises:
The above-mentioned lower cervical anterior pedicle screw head of a nail is positioned at the lower cervical anterior pedicle of vertebral arch and implants the hole, and the lower cervical anterior pedicle screw is clasped with plate body or self-locking cooperates.
It is that the first lower cervical anterior pedicle of vertebral arch that is arranged above and below is implanted hole and second lower cervical anterior pedicle of vertebral arch implantation hole that above-mentioned lower cervical anterior pedicle of vertebral arch is implanted the hole.
The first above-mentioned lower cervical anterior pedicle of vertebral arch is implanted Kong Kongzhou and is formed with first retaining ring that is used to protect the lower cervical anterior pedicle screw, and in like manner, the second lower cervical anterior pedicle of vertebral arch is implanted Kong Kongzhou and is formed with second retaining ring.
Above-mentioned plate body is provided with at least one and the supporting vertebral body screw of vertebral body screw is implanted the hole, and the vertebral body screw is implanted the hole and all is 0 ° to 15 ° movable angle with plate body sagittal plane and horizontal plane.
It is that the first vertebral body screw that is arranged above and below is implanted hole and second vertebral body screw implantation hole that above-mentioned vertebral body screw is implanted the hole.
The first above-mentioned vertebral body screw is implanted Kong Kongzhou and is formed with first retainer that is used for fixing the vertebral body screw, and in like manner, the second vertebral body screw is implanted Kong Kongzhou and is formed with second retainer.
Above-mentioned plate body middle part is provided with the subsequent use fixing hole that at least one is used for fixing the bone graft piece, and subsequent use fixing hole and plate body sagittal plane and horizontal plane all are 0 ° to 15 ° movable angle.
Above-mentioned subsequent use fixing hole is the first subsequent use fixing hole.
Above-mentioned subsequent use fixing hole is the first subsequent use fixing hole and the second subsequent use fixing hole.
Compared with prior art; This utility model lower cervical anterior pedicle screw matched and fixed anti-drop device; Comprise plate body; Wherein, plate body is provided with at least two and implants the hole with the supporting lower cervical anterior pedicle of vertebral arch of lower cervical anterior pedicle screw, and the lower cervical anterior pedicle of vertebral arch is implanted hole and plate body sagittal plane and is 30 ° to 60 ° flare angles, horizontal planes and is 0 ° to 15 ° movable angle.It is that the first lower cervical anterior pedicle of vertebral arch that is arranged above and below is implanted hole and second lower cervical anterior pedicle of vertebral arch implantation hole that the lower cervical anterior pedicle of vertebral arch is implanted the hole.The distance that the first lower cervical anterior pedicle of vertebral arch is implanted between hole and the second lower cervical anterior pedicle of vertebral arch implantation hole is good for making things convenient for two joints of lower cervical anterior LOCATION OF PEDICLE SCREW FIXATION.Because it is bigger that the anterior cervical vertebrae pedicle screw advances to follow closely angle; So the angle that the lower cervical anterior pedicle of vertebral arch is implanted between hole and the plate body is bigger than general implantation hole gradient; Reach with the plate body sagittal plane and be 30 ° to 60 ° flare angles, this also is that the plate body of why existing fixed vertebral body single-skin drum matter screw all can not be used with the anterior cervical vertebrae pedicle screw.Lower cervical anterior pedicle of vertebral arch implantation hole and plate body horizontal plane are 0 ° to 15 ° movable angle can have certain operation leeway when operation anterior cervical vertebrae pedicle screw advances to follow closely, improve to be operable to power.The utlity model has simple in structure, safe in utilization, with the supporting advantage of lower cervical anterior pedicle screw.
Description of drawings
Fig. 1 is the structural representation of this utility model embodiment;
Fig. 2 is the left view of Fig. 1;
Fig. 3 is the vertical view of Fig. 1;
Fig. 4 is the axonometric chart of Fig. 1.
The specific embodiment
Embodiment describes in further detail this utility model below in conjunction with accompanying drawing.
To embodiment shown in Figure 4, the figure grade explanation: plate body 1, the first lower cervical anterior pedicle of vertebral arch are implanted hole 21, the first retaining ring 21a, the second lower cervical anterior pedicle of vertebral arch and are implanted hole 22, the second retaining ring 22a, the first vertebral body screw and implant hole 31, the first retainer 31a, the second vertebral body screw and implant the subsequent use fixing hole of the subsequent use fixing hole in hole 32, the second retainer 32a, subsequent use fixing hole 4, first 41, second 42, lower cervical anterior pedicle screw 5 like Fig. 1.
Embodiment one,
Shown in Fig. 1 to 4; Lower cervical anterior pedicle screw matched and fixed anti-drop device; Comprise plate body 1; Wherein, plate body 1 is provided with at least two and implants the hole with the supporting lower cervical anterior pedicles of vertebral arch of lower cervical anterior pedicle screw 5, and the lower cervical anterior pedicle of vertebral arch is implanted hole and plate body 1 sagittal plane and is 30 ° to 60 ° flare angles, horizontal planes and is 0 ° to 15 ° movable angle.Because it is bigger that anterior cervical vertebrae pedicle screw 5 advances to follow closely angle; So the angle that the lower cervical anterior pedicle of vertebral arch is implanted between hole and the plate body 1 is bigger than general implantation hole gradient; Reach with the plate body sagittal plane and be 30 ° to 60 ° flare angles, this also is that the plate body of why existing fixed vertebral body single-skin drum matter screw all can not be used with the anterior cervical vertebrae pedicle screw.Lower cervical anterior pedicle of vertebral arch implantation hole and plate body horizontal plane are 0 ° to 15 ° movable angle can have certain operation leeway when operation anterior cervical vertebrae pedicle screw advances to follow closely, improve to be operable to power.It is that the first lower cervical anterior pedicle of vertebral arch that is arranged above and below is implanted hole 21 and second lower cervical anterior pedicle of vertebral arch implantation hole 22 that the lower cervical anterior pedicle of vertebral arch is implanted the hole.The distance that the first lower cervical anterior pedicle of vertebral arch is implanted between hole 21 and the second lower cervical anterior pedicle of vertebral arch implantation hole 22 is good for making things convenient for two joints of lower cervical anterior LOCATION OF PEDICLE SCREW FIXATION, and the material of plate body is steel or plastics.Generally in the majority with steel plate.
Among the embodiment, lower cervical anterior pedicle screw 5 heads of a nail are positioned at the lower cervical anterior pedicle of vertebral arch and implant the hole, and lower cervical anterior pedicle screw 5 is clasped with plate body 1 or self-locking cooperates.For the lower cervical anterior pedicle screw 5 after guarantee implanting firmly, the head of a nail of lower cervical anterior pedicle screw 5 will be positioned at the lower cervical anterior pedicle of vertebral arch and implant the hole, the height of plate body upper surface is higher than lower cervical anterior pedicle screw 5 head of a nail height after the implantation.Lower cervical anterior pedicle screw 5 preferably cooperates with plate body 1 self-locking, if the coefficient of friction of plate body can't reach, can change other fixed form into.
Among the embodiment, it is that the first lower cervical anterior pedicle of vertebral arch that is arranged above and below is implanted hole 21 and second lower cervical anterior pedicle of vertebral arch implantation hole 22 that the lower cervical anterior pedicle of vertebral arch is implanted the hole.
Among the embodiment, the first lower cervical anterior pedicle of vertebral arch is implanted and 21 hole weeks of hole is formed with the first retaining ring 21a that is used to protect lower cervical anterior pedicle screw 5, and in like manner, the second lower cervical anterior pedicle of vertebral arch is implanted and 22 hole weeks of hole is formed with the second retaining ring 22a.
Among the embodiment, plate body 1 is provided with at least one and the supporting vertebral body screw of vertebral body screw is implanted the hole, and the vertebral body screw is implanted the hole and all is 0 ° to 15 ° movable angle with plate body 1 sagittal plane and horizontal plane.In order to reach the many usefulness of a plate, on the plate body also for implant the vertebral body screw designs body screw implant the hole, make the lower cervical anterior pedicle screw matched and fixed anti-drop device of this utility model can be used as common fixedly anti-drop device and use.
Among the embodiment, it is that the first vertebral body screw that is arranged above and below is implanted hole 31 and second vertebral body screw implantation hole 32 that the vertebral body screw is implanted the hole.The number that the vertebral body screw is implanted the hole is made as two, and pitch-row is good for making things convenient for fixing two joints of vertebral body screw.
Among the embodiment, the first vertebral body screw is implanted and 31 hole weeks of hole is formed with the first retainer 31a that is used for fixing the vertebral body screw, and in like manner, the second vertebral body screw is implanted and 32 hole weeks of hole is formed with the second retainer 32a.The first retainer 31a and the first vertebral body screw are implanted the vertebral body screw locking in the hole 31, and the second retainer 32a and the second vertebral body screw are implanted the vertebral body screw locking in the hole 32.
Among the embodiment, plate body 1 middle part is provided with at least one subsequent use fixing hole 4 that is used for fixing the bone graft piece, and subsequent use fixing hole 4 all is 0 ° to 15 ° movable angle with plate body 1 sagittal plane and horizontal plane.Body single-skin drum matter screw passes subsequent use fixing hole 4 and withstands the bone graft piece, and subsequent use fixing hole 4 is fixed body single-skin drum matter screw again to reach the localized effect of bone graft piece.
Among the embodiment, subsequent use fixing hole 4 is the first subsequent use fixing hole 41 and the second subsequent use fixing hole 42.
Embodiment two,
Among the embodiment, subsequent use fixing hole 4 is the first subsequent use fixing hole 41.Do not state part with first embodiment.
Design lower cervical anterior pedicle screw matched and fixed anti-drop device helps further strengthening the biomechanical property of preceding road pedicle screw, has enlarged the utilization scope of lower cervical anterior pedicle screw simultaneously, helps this technology and better carries out and promote.Because the dissection particularity of following pedicle for cervical vertebra arch; The trend that must meet pedicle of vertebral arch on the preceding road of implantation during pedicle screw; It is the abduction that the angle of lower cervical anterior pedicle screw must be about 30-60 degree with the plate body sagittal plane; And the preceding road cervical steel plate of being sold in the market none meet this angle, therefore designing lower cervical anterior pedicle screw matched and fixed anti-drop device has extremely urgent.We have used for reference the advantage of existing anterior plate fixation, use 5 holes or 6 hole steel plate designs, and a side is implanted 2 pieces of pedicle screws, and opposite side still can be implanted common vertebral body single-skin drum matter screw, to strengthen its fixed biomechanical property.We reserve steel plate central authorities 1 hole in addition or 2 holes are subsequent use, are used for the fixing of plant bone mass.
The utlity model has simple in structure, safe in utilization, of many uses, can with the matching used advantage of lower cervical anterior pedicle screw.
The most preferred embodiment of this utility model is illustrated, and various variations of being made by those of ordinary skills or remodeling can not break away from the scope of this utility model.
Claims (10)
1. lower cervical anterior pedicle screw matched and fixed anti-drop device; Comprise plate body (1); It is characterized in that: described plate body (1) is provided with at least two and implants the hole with the supporting lower cervical anterior pedicle of vertebral arch of lower cervical anterior pedicle screw (5), and described lower cervical anterior pedicle of vertebral arch is implanted hole and plate body (1) sagittal plane and is 30 ° to 60 ° flare angles, horizontal planes and is 0 ° to 15 ° movable angle.
2. lower cervical anterior pedicle screw matched and fixed anti-drop device according to claim 1; It is characterized in that: described lower cervical anterior pedicle screw (5) head of a nail is positioned at the lower cervical anterior pedicle of vertebral arch and implants the hole, and lower cervical anterior pedicle screw (5) is clasped with plate body (1) or self-locking cooperates.
3. lower cervical anterior pedicle screw matched and fixed anti-drop device according to claim 2 is characterized in that: it is that the first lower cervical anterior pedicle of vertebral arch that is arranged above and below is implanted hole (21) and second lower cervical anterior pedicle of vertebral arch implantation hole (22) that described lower cervical anterior pedicle of vertebral arch is implanted the hole.
4. lower cervical anterior pedicle screw matched and fixed anti-drop device according to claim 3; It is characterized in that: the described first lower cervical anterior pedicle of vertebral arch is implanted and is formed with first retaining ring (21a) that is used to protect lower cervical anterior pedicle screw (5) hole (21) hole week; In like manner, the described second lower cervical anterior pedicle of vertebral arch is implanted and hole (22) hole week is formed with second retaining ring (22a).
5. lower cervical anterior pedicle screw matched and fixed anti-drop device according to claim 4; It is characterized in that: described plate body (1) is provided with at least one and the supporting vertebral body screw of vertebral body screw is implanted the hole, and described vertebral body screw is implanted the hole and all is 0 ° to 15 ° movable angle with plate body (1) sagittal plane and horizontal plane.
6. lower cervical anterior pedicle screw matched and fixed anti-drop device according to claim 5 is characterized in that: it is that the first vertebral body screw that is arranged above and below is implanted hole (31) and second vertebral body screw implantation hole (32) that described vertebral body screw is implanted the hole.
7. lower cervical anterior pedicle screw matched and fixed anti-drop device according to claim 6; It is characterized in that: the described first vertebral body screw is implanted and is formed with first retainer (31a) that is used for fixing the vertebral body screw hole (31) hole week; In like manner, the described second vertebral body screw is implanted and hole (32) hole week is formed with second retainer (32a).
8. lower cervical anterior pedicle screw matched and fixed anti-drop device according to claim 7; It is characterized in that: described plate body (1) middle part is provided with the subsequent use fixing hole (4) that at least one is used for fixing the bone graft piece, and described subsequent use fixing hole (4) all is 0 ° to 15 ° movable angle with plate body (1) sagittal plane and horizontal plane.
9. lower cervical anterior pedicle screw matched and fixed anti-drop device according to claim 8 is characterized in that: described subsequent use fixing hole (4) is the first subsequent use fixing hole (41).
10. lower cervical anterior pedicle screw matched and fixed anti-drop device according to claim 9 is characterized in that: described subsequent use fixing hole (4) is the first subsequent use fixing hole (41) and the second subsequent use fixing hole (42).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204459140U CN202355458U (en) | 2011-11-12 | 2011-11-12 | Fixing and anti-falling device mated with lower cervical spine anterior vertebral pedicle screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204459140U CN202355458U (en) | 2011-11-12 | 2011-11-12 | Fixing and anti-falling device mated with lower cervical spine anterior vertebral pedicle screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202355458U true CN202355458U (en) | 2012-08-01 |
Family
ID=46566684
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204459140U Expired - Fee Related CN202355458U (en) | 2011-11-12 | 2011-11-12 | Fixing and anti-falling device mated with lower cervical spine anterior vertebral pedicle screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202355458U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104042317A (en) * | 2014-06-16 | 2014-09-17 | 姜永庆 | Spine fixing system |
| CN109646153A (en) * | 2019-02-28 | 2019-04-19 | 赵刘军 | Novel interbody cage systems based on lower cervical anterior pedicle of vertebral arch basal part screw |
| CN112869854A (en) * | 2021-03-19 | 2021-06-01 | 苏州欣荣博尔特医疗器械有限公司 | Nail plate system for anterior cervical spine |
-
2011
- 2011-11-12 CN CN2011204459140U patent/CN202355458U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104042317A (en) * | 2014-06-16 | 2014-09-17 | 姜永庆 | Spine fixing system |
| CN109646153A (en) * | 2019-02-28 | 2019-04-19 | 赵刘军 | Novel interbody cage systems based on lower cervical anterior pedicle of vertebral arch basal part screw |
| CN112869854A (en) * | 2021-03-19 | 2021-06-01 | 苏州欣荣博尔特医疗器械有限公司 | Nail plate system for anterior cervical spine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10524841B2 (en) | Spine stabilization system | |
| US9023087B2 (en) | Percutaneous modular head-to-head cross connector | |
| US9005256B2 (en) | Vertical inline plate | |
| CN106068110A (en) | There is the pad of interim fixed plate | |
| CN103169534A (en) | Back outer side anatomy type locking bone fracture plate for tibia plateau | |
| CN203001092U (en) | Lower cervical vertebra anterior approach pedicle screw matched fixing and anti-falling device | |
| CN103860246B (en) | Pedicle screw and Thoracolumbar disk Anterior fixation system | |
| CN202355458U (en) | Fixing and anti-falling device mated with lower cervical spine anterior vertebral pedicle screw | |
| CN102362815B (en) | Lower cervical spine anterior pedicle screw matching, fixing and retaining device | |
| CN203089337U (en) | Minitype internal fixation and fusion device of atlantoaxial lateral mass joint | |
| CN104758040A (en) | Steel plate for anterior cervial internal fixation and guiding device | |
| CN201586058U (en) | Anterior cervical vertebra fixation system | |
| CN203153921U (en) | Child occipitocervical internal fixation system | |
| CN202397582U (en) | Anatomical lock plate for posterolateral tibial plateau | |
| CN202409215U (en) | Adjustable artificial cervical vertebra and artificial intervertebral disk connection composite body | |
| CN101972165B (en) | X-ray-film-based method for locating coordinates of pedicle screws | |
| CN203988321U (en) | Post associating steel plate before and after a kind of acetabular bone | |
| CN204600645U (en) | A kind of anterior cervical vertebrae internal fixation steel plate | |
| CN201692036U (en) | Lower cervical anterior vertebral pedicle bolt internal fixing steel plate | |
| CN204600803U (en) | A kind of atlas and axis Lateral mass joint fusion device of Atlantoaxial fusion | |
| CN204890150U (en) | Supporting fixed structure of way pedicle of vertebral arch screw before lower cervical vertebra | |
| CN203677227U (en) | Sliding and fixing system for cervical pedicle screws | |
| CN203252718U (en) | Injectable pedicle screw | |
| CN202342169U (en) | Single-row and single-swing center line screw anterior cervical plate internal fixation system | |
| CN201094660Y (en) | T-shaped upper anterior cervical nail-plate internal fixation device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120801 Termination date: 20131112 |