CN102871717B - Cervical vertebra fixing plate with odontoid process fusing device - Google Patents
Cervical vertebra fixing plate with odontoid process fusing device Download PDFInfo
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- CN102871717B CN102871717B CN201210430791.2A CN201210430791A CN102871717B CN 102871717 B CN102871717 B CN 102871717B CN 201210430791 A CN201210430791 A CN 201210430791A CN 102871717 B CN102871717 B CN 102871717B
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- screw
- vertebra
- fusing device
- fixing head
- cervical vertebra
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- 238000000034 method Methods 0.000 title claims abstract description 25
- 210000000988 bone and bone Anatomy 0.000 claims abstract description 5
- 230000004927 fusion Effects 0.000 claims description 12
- 239000008187 granular material Substances 0.000 claims description 8
- 230000001012 protector Effects 0.000 claims description 7
- 238000010030 laminating Methods 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 238000002513 implantation Methods 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 239000002245 particle Substances 0.000 abstract 1
- 239000007943 implant Substances 0.000 description 4
- 238000011069 regeneration method Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 206010020649 Hyperkeratosis Diseases 0.000 description 2
- 239000008280 blood Substances 0.000 description 2
- 210000004369 blood Anatomy 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 210000004409 osteocyte Anatomy 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 210000000278 spinal cord Anatomy 0.000 description 2
- 208000010392 Bone Fractures Diseases 0.000 description 1
- 206010017076 Fracture Diseases 0.000 description 1
- 206010028980 Neoplasm Diseases 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 208000024891 symptom Diseases 0.000 description 1
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Abstract
The invention relates to a cervical vertebra fixing device with an odontoid process fusing device, which comprises a main body fixing plate; the main body fixing plate is matched with at least two cervical vertebra fixing screws in a locking manner, wherein one side of the main body fixing plate adhered to the cervical vertebra is provided with a horizontal stretching fusing device which is provided with an axial fusing through hole; bone particles are arranged in the axial fusing through hole; and an odontoid process is arranged on at least one of upper and lower surfaces of the fusing device. Compared with the prior art, the stability and the reliability of the cervical vertebra fixing plate are both greatly enhanced, so that the problem of cervical vertebra fixing plate loosening and falling off from the cervical vertebra can be truly completely eradicated.
Description
Technical field
The present invention relates to technical field of medical instruments, relate in particular to cervical spine fixator, specifically, is the cervical vertebra fixing head with Odontoid process fusing device.
Background technology
In daily life, the case that causes cervical section to be damaged due to reasons such as tumor, fracture, infection happens occasionally.In the time of these patients for the treatment of, the mode adopting is at present to fix a cervical vertebra fixing head by embedding vertebral body screw on upper and lower two vertebral bodys of breakage, for substituting cervical vertebra broken parts, thereby repairs the vertebral body damaging.Because hammering into vertebral body by screw, itself realizes the fixing of cervical vertebra fixing head; because cervical region is the often position of activity of human body; there will be loosening through long movement screw connection; patient is brought to danger; the lighter need to again perform the operation and fix cervical vertebra fixing head; bring misery, severe one injures spinal cord and brings the consequence that can not save.For solving the problem of cervical vertebra fixing head loose or dislocation, the method that many screws of available technology adopting are fixing, be specially and adopt five screws to embed in vertebral body, to delay the time of screw loosening, but, do still and cure the symptoms, not the disease like this, the becoming flexible to being a matter of time of screw, how to stop the generation of this type of accident, the solution of not yet having found so far.
Summary of the invention
Technical problem to be solved by this invention is the present situation for prior art, and a kind of cervical vertebra fixing head with Odontoid process fusing device that can make cervical vertebra fixing head and vertebral body how be integrated is provided, and it has advantages of can stop cervical vertebra fixing head loose or dislocation from vertebral body.
The present invention solves the problems of the technologies described above adopted technical scheme:
With the cervical vertebra fixing head of Odontoid process fusing device, include main body fixing head, the locking of main body fixing head is combined with at least two cervical vertebra hold-down screws, wherein, the one side of main body fixing head and cervical vertebra laminating is provided with the fusing device that level is stretched out, fusing device is provided with axial fusion through hole, axially merges through hole and is built-in with osseous granules, and the upper and lower surface of fusing device has at least one side to be provided with Odontoid process.
The technical measures of optimizing also comprise:
Above-mentioned fusing device is away from the width of main body fixing head one end and be highly less than width and the height near main body fixing head one end.
Above-mentioned fusing device is that artificial bone is made and fusing device is provided with the observation line for determining implantation depth.
The upper and lower surface of above-mentioned fusing device is equipped with Odontoid process.
Above-mentioned cervical vertebra hold-down screw nail tip portion is provided with locking slot.
Above-mentioned main body fixing head is provided with five locating holes, be respectively middle vertebra screw, upper left vertebra screw, upper right vertebra screw, lower-left vertebra screw and bottom right vertebra screw, correspondingly, cervical vertebra hold-down screw is also five, locks friction tight middle vertebral screw, upper left vertebral screw, upper right vertebral screw, lower-left vertebral screw and bottom right vertebral screw with middle vertebra screw, upper left vertebra screw, upper right vertebra screw, lower-left vertebra screw and bottom right vertebra screw respectively.
Above-mentioned middle vertebra screw is provided with the spacing gathering sill of centering vertebral screw, on gathering sill, be formed with head protector and middle vertebral screw screw in completely in when vertebra screw, the middle vertebral screw head of a nail is positioned at head protector.
Above-mentioned fusing device is provided with chute, and correspondingly, main body fixing head is provided with projection, and projection inserts in chute fusing device and main body fixing head are vertically slidably connected.
The axle center of above-mentioned middle vertebra screw and horizontal plane angle are 70 °.
Above-mentioned main body fixing head is steel plate.
Compared with prior art, cervical vertebra fixing head with Odontoid process fusing device of the present invention, include main body fixing head, the locking of main body fixing head is combined with at least two cervical vertebra hold-down screws, wherein, the one side of main body fixing head and cervical vertebra laminating is provided with the fusing device that level is stretched out, and fusing device is provided with axial fusion through hole, axially merge through hole and be built-in with osseous granules, the upper and lower surface of fusing device has at least one side to be provided with Odontoid process.Main body fixing head is provided with five locating holes, be respectively middle vertebra screw, upper left vertebra screw, upper right vertebra screw, lower-left vertebra screw and bottom right vertebra screw, correspondingly, cervical vertebra hold-down screw is also five, locks friction tight middle vertebral screw, upper left vertebral screw, upper right vertebral screw, lower-left vertebral screw and bottom right vertebral screw with middle vertebra screw, upper left vertebra screw, upper right vertebra screw, lower-left vertebra screw and bottom right vertebra screw respectively.The one side of main body fixing head of the present invention and cervical vertebra laminating is provided with the fusing device that level is stretched out, fusing device head is relatively sharp-pointed, when convenient operation, embed in vertebral body, the upper and lower surface of fusing device is provided with Odontoid process, in the time that fusing device is embedded, these Odontoid processes can gall the vertebral body touching to cause the worn-off face of vertebral body to occur blood point, in the time of vertebral body self-regeneration, in live body, treat that osteocyte forms fibrous callus, together with just growing to fusing device, greatly increase the degrees of fusion of the present invention and vertebral body, reduce risk that cervical vertebra fixing head deviates from order further vertebral body and cervical vertebra fixing head to be merged, we have offered axial penetrating fusion through hole on fusing device, in the time that fusing device embeds, vertebral body is worn, at this moment in fusion through hole, fill osseous granules, osseous granules and the vertebral body that in the time of vertebral body self-regeneration, can make to merge in through hole are merged completely, be equivalent to fusing device length among cervical vertebra, absolutely not deviate from possibility.
Compared with prior art, the steadiness of cervical vertebra fixing head, reliability all increase greatly in the present invention, really can accomplish to stop the problem of cervical vertebra fixing head loose or dislocation from vertebral body.
Brief description of the drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is the left view of Fig. 1;
Fig. 3 is the top view of Fig. 1;
Fig. 4 is the axonometric chart of Fig. 1;
Fig. 5 is the structural representation of main body fixing head of the present invention;
Fig. 6 is the structural representation of fusing device of the present invention;
Fig. 7 is main body fixing head and fusing device combinative structure schematic diagram.
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiment is described in further detail the present invention.
Structural representation of the present invention as shown in Figure 1 to Figure 7 shows the.
Reference numeral is wherein: main body fixing head 1, projection 1a, middle vertebra screw 11, gathering sill 11a, head protector 11b, upper left vertebra screw 12, upper right vertebra screw 13, lower-left vertebra screw 14, bottom right vertebra screw 15, cervical vertebra hold-down screw 2, middle vertebral screw 21, upper left vertebral screw 22, upper right vertebral screw 23, lower-left vertebral screw 24, bottom right vertebral screw 25, locking slot 26, fusing device 3, fusion through hole 31, Odontoid process 32, chute 33, observation line 34.
As shown in Figures 1 to 7,
Cervical vertebra fixing head with Odontoid process fusing device of the present invention, include main body fixing head 1,1 locking of main body fixing head is combined with at least two cervical vertebra hold-down screws 2, wherein, main body fixing head 1 is provided with the one side of cervical vertebra laminating the fusing device 3 that level is stretched out, fusing device 3 is provided with axial fusion through hole 31, axially merges through hole 31 and is built-in with osseous granules, and the upper and lower surface of fusing device 3 has at least one side to be provided with Odontoid process 32.
In embodiment, fusing device 3 is away from the width of main body fixing head 1 one end and be highly less than width and the height near main body fixing head 1 one end.
In embodiment, fusing device 3 is made and fusing device 3 is provided with for determining the observation line 34 of implantation depth for artificial bone.
In embodiment, the upper and lower surface of fusing device 3 is equipped with Odontoid process 32.
In embodiment, cervical vertebra hold-down screw 2 nail tip portions are provided with locking slot 26.
In embodiment, main body fixing head 1 is provided with five locating holes, be respectively middle vertebra screw 11, upper left vertebra screw 12, upper right vertebra screw 13, lower-left vertebra screw 14 and bottom right vertebra screw 15, correspondingly, cervical vertebra hold-down screw 2 is also five, locks friction tight middle vertebral screw 21, upper left vertebral screw 22, upper right vertebral screw 23, lower-left vertebral screw 24 and bottom right vertebral screw 25 with middle vertebra screw 11, upper left vertebra screw 12, upper right vertebra screw 13, lower-left vertebra screw 14 and bottom right vertebra screw 15 respectively.
In embodiment, middle vertebra screw 11 is provided with the spacing gathering sill 11a of centering vertebral screw 21, on gathering sill 11a, be formed with head protector 11b and middle vertebral screw 21 screw in completely in when vertebra screw 11, middle vertebral screw 21 heads of a nail are positioned at head protector 11b.
In embodiment, fusing device 3 is provided with chute 33, and correspondingly, main body fixing head 1 is provided with projection 1a, and projection 1a inserts in chute 33 fusing device 3 and main body fixing head 1 are vertically slidably connected.In the time that projection 1a slides into appropriate location, projection 1a and chute 33 are fixed, make the two relative sliding again.
In embodiment, the axle center of middle vertebra screw 11 and horizontal plane angle are 70 °.
In embodiment, main body fixing head 1 is steel plate.
Compared with prior art, main body fixing head 1 of the present invention is provided with the one side of cervical vertebra laminating the fusing device 3 that level is stretched out, fusing device 3 heads are relatively sharp-pointed, when convenient operation, embed in vertebral body, the upper and lower surface of fusing device 3 is provided with Odontoid process 32, in the time that fusing device 3 is embedded, these Odontoid processes 32 can gall the vertebral body touching to cause the worn-off face of vertebral body to occur blood point, in the time of vertebral body self-regeneration, in live body, treat that osteocyte forms fibrous callus, together with just growing to fusing device 3, greatly increase the degrees of fusion of the present invention and vertebral body, reduce risk that cervical vertebra fixing head deviates from order further vertebral body and cervical vertebra fixing head to be merged, we have offered axial penetrating fusion through hole 31 on fusing device 3, in the time that fusing device 3 embeds, vertebral body is worn, at this moment in fusion through hole 31, fill osseous granules, osseous granules and the vertebral body that in the time of vertebral body self-regeneration, can make to merge in through hole 31 are merged completely, be equivalent to fusing device 3 long among cervical vertebra, absolutely not deviate from possibility.In order further to guarantee the firm of cervical vertebra fixing head, the present invention has also adopted five screws to hammer into the fixing means of vertebral body, makes cervical vertebra fixing head more firm.Middle vertebral screw 21 is implanted a cervical vertebra on cervical vertebra fixing head top obliquely, this screw length is the longest, connect the most surely, therefore will note angle while placement, can not penetrate because implant angle is too small spinal cord and cause and cannot save consequence, can not the excessive fixed effect that affects of implant angle, best implant angle is 70 °, for guaranteeing implant angle, on the corresponding screw of middle vertebral screw 21, vertebra screw 11 in, arranges gathering sill 11a.Upper left vertebral screw 22, upper right vertebral screw 23 are implanted respectively the left and right sides of the cervical vertebra in cervical vertebra fixing head top, and the left and right sides that lower-left vertebral screw 24 and bottom right vertebral screw 25 are not implanted the cervical vertebra in cervical vertebra fixing head bottom prevents that cervical vertebra fixing head from rocking.
The material of fusing device 3 is generally selected artificial bone, this material light weight and intensity are good, but, because it is not metal, under X-ray, can not develop, therefore, in the time that fusing device 3 is implanted to cervical vertebra, have certain risk, in order to eliminate this risk, on fusing device 3, be provided with the observation line 34 that several roads can develop under X-ray.
Compared with prior art, the steadiness of cervical vertebra fixing head, reliability all increase greatly in the present invention, really can accomplish to stop the problem of cervical vertebra fixing head loose or dislocation from vertebral body.
Claims (4)
1. the cervical vertebra fixing head with Odontoid process fusing device, includes main body fixing head (1), and described main body fixing head (1) locking is combined with
fivecervical vertebra hold-down screw (2), it is characterized in that: described main body fixing head (1) is provided with the one side of cervical vertebra laminating the fusing device (3) that level is stretched out, described fusing device (3) is provided with axial fusion through hole (31), described axial fusion through hole (31) is built-in with osseous granules, the upper and lower surface of described fusing device (3)
allbe provided with Odontoid process (32);
Described fusing device (3) is away from the width of main body fixing head (1) one end and be highly less than width and the height near main body fixing head (1) one end;
Described fusing device (3) is made and described fusing device (3) is provided with for determining the observation line (34) of implantation depth for artificial bone;
Described cervical vertebra hold-down screw (2) nail tip portion is provided with locking slot (26);
Described main body fixing head (1) is provided with five locating holes, be respectively middle vertebra screw (11), upper left vertebra screw (12), upper right vertebra screw (13), lower-left vertebra screw (14) and bottom right vertebra screw (15), correspondingly
described cervical vertebra hold-down screw (2) is also five, lock friction tight middle vertebral screw (21), upper left vertebral screw (22), upper right vertebral screw (23), lower-left vertebral screw (24) and bottom right vertebral screw (25) with middle vertebra screw (11), upper left vertebra screw (12), upper right vertebra screw (13), lower-left vertebra screw (14) and bottom right vertebra screw (15) respectively;
Described middle vertebra screw (11) is provided with the spacing gathering sill (11a) of centering vertebral screw (21), on described gathering sill (11a), be formed with head protector (11b) and middle vertebral screw (21) screw in completely in when vertebra screw (11), middle vertebral screw (21) head of a nail is positioned at head protector (11b).
2. the cervical vertebra fixing head with Odontoid process fusing device according to claim 1, it is characterized in that: described fusing device (3) is provided with chute (33), correspondingly, described main body fixing head (1) is provided with projection (1a), and described projection (1a) inserts in chute (33) fusing device (3) and main body fixing head (1) are vertically slidably connected.
3. the cervical vertebra fixing head with Odontoid process fusing device according to claim 1, is characterized in that: axle center and the horizontal plane angle of described middle vertebra screw (11) are 70 °.
4. the cervical vertebra fixing head with Odontoid process fusing device according to claim 1, is characterized in that: described main body fixing head (1) is steel plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210430791.2A CN102871717B (en) | 2012-11-02 | 2012-11-02 | Cervical vertebra fixing plate with odontoid process fusing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210430791.2A CN102871717B (en) | 2012-11-02 | 2012-11-02 | Cervical vertebra fixing plate with odontoid process fusing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102871717A CN102871717A (en) | 2013-01-16 |
| CN102871717B true CN102871717B (en) | 2014-07-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210430791.2A Active CN102871717B (en) | 2012-11-02 | 2012-11-02 | Cervical vertebra fixing plate with odontoid process fusing device |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103340682B (en) * | 2013-07-22 | 2015-08-19 | 胡亚兰 | Posterior cervical lateral mass screw fixed guider and screw fixing means |
| USD779065S1 (en) | 2014-10-08 | 2017-02-14 | Nuvasive, Inc. | Anterior cervical bone plate |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100349558C (en) * | 2004-01-05 | 2007-11-21 | 贾连顺 | cap type cervical interbody fusion cage |
| CN2875347Y (en) * | 2006-02-28 | 2007-03-07 | 孔琦 | Cervical vertebrae front steel plate fusion device |
| US8328872B2 (en) * | 2008-09-02 | 2012-12-11 | Globus Medical, Inc. | Intervertebral fusion implant |
| CN202859275U (en) * | 2012-11-02 | 2013-04-10 | 胡勇 | Cervical vertebra fixing board with odontoid fusion device |
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- 2012-11-02 CN CN201210430791.2A patent/CN102871717B/en active Active
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| CN102871717A (en) | 2013-01-16 |
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