CN204106172U - A kind of cervical vertebra locking fusion device - Google Patents
A kind of cervical vertebra locking fusion device Download PDFInfo
- Publication number
- CN204106172U CN204106172U CN201420541219.8U CN201420541219U CN204106172U CN 204106172 U CN204106172 U CN 204106172U CN 201420541219 U CN201420541219 U CN 201420541219U CN 204106172 U CN204106172 U CN 204106172U
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- China
- Prior art keywords
- fusion device
- cervical vertebra
- locking
- locking plate
- screw
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- Expired - Fee Related
Links
- 230000004927 fusion Effects 0.000 title claims abstract description 70
- 239000003550 marker Substances 0.000 claims description 6
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 208000003618 Intervertebral Disc Displacement Diseases 0.000 description 1
- 206010050296 Intervertebral disc protrusion Diseases 0.000 description 1
- 208000012287 Prolapse Diseases 0.000 description 1
- 206010041591 Spinal osteoarthritis Diseases 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 208000036319 cervical spondylosis Diseases 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 208000005801 spondylosis Diseases 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 238000002560 therapeutic procedure Methods 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 208000029761 vertebral disease Diseases 0.000 description 1
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- Surgical Instruments (AREA)
Abstract
The utility model discloses a kind of cervical vertebra locking fusion device, comprise fusion device body, this fusion device body is provided with the fusion hole of up/down perforation, upper surface and the lower surface of this fusion device body are provided with anti-slop serrations, the outer rim of the anti-slop serrations of described upper surface is arranged to the cambered surface of coincideing with the lower surface of the upper cervical spine body of cervical vertebra, and the outer rim of the anti-slop serrations of described lower surface is arranged to the plane of coincideing with the upper surface of the Cervical vertebra body of cervical vertebra; The anterior end surface of described fusion device body is provided with installing hole, is detachably provided with in this installing hole for the fixing lockplate of the front end face of the front end face and Cervical vertebra body with upper cervical spine body.This locking fusion device can stablize the Cervical anterior fusion device fixedly secured between upper cervical spine body and Cervical vertebra body, avoids fusion device to skid off between upper cervical spine body and Cervical vertebra body, makes postoperatively more easily to recover.
Description
Technical field
This utility model relates to a kind of cervical vertebra locking fusion device, belongs to technical field of medical instruments.
Background technology
Intervertebral disc protrusion of cervical vertebra disease is spinal surgery commonly encountered diseases, current is carry out cervical operation for the effective Therapeutic Method of prolapse of cervical intervertebral disc, namely in order to recover the physiologic radian of intervertebral height and cervical vertebra, cervical vertebra is made to reach at once stable, need carry out bone-graft fusion at depressor area, wherein anterior cervical decompression and fusion is the conventional operation method of clinical treatment cervical spondylosis.Because having simplification operation process, reduce complication; Obtain instant stable, improve fusion rate; Maintain the advantage such as intervertebral height and physiologic radian, by many clinicists and patient approve.But there is the inclination of 5 ~ 10 ° in the conical surface due to cervical vertebra, between vertebral body, anterior and posterior height is inconsistent, low after front height, and the Invasive lumbar fusion device of implantation is difficult to be close to upper cervical spine body, Cervical vertebra body, easily occurs the phenomenon that fusion device skids off from vertebral body.Once occur that fusion device skids off phenomenon, cervical vertebrae physiological radian hour, there will be adjacent phases regression, and internal fixtion ruptures, and causes the failure of performing the operation.
Utility model content
Technical problem to be solved in the utility model is: provide a kind of cervical vertebra to lock fusion device, this locking fusion device can stablize the Cervical anterior fusion device fixedly secured between upper cervical spine body and Cervical vertebra body, avoid fusion device to skid off between upper cervical spine body and Cervical vertebra body, make postoperatively more easily to recover.
For solving the problems of the technologies described above, the technical solution of the utility model is: a kind of cervical vertebra locking fusion device, comprise fusion device body, this fusion device body is provided with the fusion hole of up/down perforation, upper surface and the lower surface of this fusion device body are provided with anti-slop serrations, the outer rim of the anti-slop serrations of described upper surface is arranged to the cambered surface of coincideing with the lower surface of the upper cervical spine body of cervical vertebra, and the outer rim of the anti-slop serrations of described lower surface is arranged to the plane of coincideing with the upper surface of the Cervical vertebra body of cervical vertebra; The anterior end surface of described fusion device body is provided with installing hole, is detachably provided with in this installing hole for the fixing lockplate of the front end face of the front end face and Cervical vertebra body with upper cervical spine body.
As the preferred scheme of one, described lockplate comprises axle hole and is connected to the first locking plate of an end and second locking plate of axle hole, the axes normal of this first locking plate and axle hole, second locking plate is crossing with the first locking plate and towards the other end deflection of axle hole, first locking plate and the second locking plate are respectively arranged with locking screw, and the first locking plate and the second locking plate are fixed by lock screw and the front end face of upper cervical spine body and the front end face of Cervical vertebra body.
As the preferred scheme of one, the angle of cut between described first locking plate and the second locking plate is between 10 °-11 °.
As the preferred scheme of one, described axle hole is provided with through screw, the other end of this axle hole is provided with cross bath, this axle hole is inserted in described installing hole, is provided with attachment screw in described screw.
As the preferred scheme of one, described locking screw holes is anti-back nail locking screw, and the hole of this locking screw is along being provided with six radial slots.
As the preferred scheme of one, described lock screw comprises cap portion and bar portion, and this bar portion is provided with tapered thread, and this tapered thread extends to the head end in bar portion by the tail end in bar portion.
As the preferred scheme of one, described fusion device body is also provided with the marker pin that at least one can determine fusion device body position.
After have employed technique scheme, effect of the present utility model is: upper surface and the lower surface of this fusion device body are provided with anti-slop serrations, when placing fusion device body, anti-slop serrations can effectively prevent from skidding off, simultaneously, the anterior end surface of described fusion device body is provided with installing hole, detachably be provided with for the fixing lockplate of the front end face of the front end face and Cervical vertebra body with upper cervical spine body in this installing hole, so utilize lockplate fusion device body and upper cervical spine body and Cervical vertebra body can be fixed, such fusion device body is firmly with upper, Cervical vertebra body is fixed, make postoperatively more easily to recover.
Again because described lockplate comprises axle hole and be connected to the first locking plate of an end and second locking plate of axle hole, the axes normal of this first locking plate and axle hole, second locking plate is crossing with the first locking plate and towards the other end deflection of axle hole, first locking plate and the second locking plate are respectively arranged with locking screw, and the first locking plate and the second locking plate are fixed by lock screw and the front end face of upper cervical spine body and the front end face of Cervical vertebra body.This axle hole can coordinate with the installing hole of fusion device body, first locking plate and the second locking plate are installed on an end of axle hole, therefore, fusion device body can be embedded into upper cervical spine body and the enough degree of depth of Cervical vertebra body, meanwhile, the second locking plate is crossing with the first locking plate and towards the other end deflection of axle hole, like this, second locking plate and the first locking plate can perfectly and the front end face of the front end face of upper cervical spine body and Cervical vertebra body fit, make fixing more firmly reliable.
Again due to described axle hole being provided with through screw, the other end of this axle hole is provided with cross bath, this axle hole is inserted in described installing hole, is provided with attachment screw in described screw.Axle hole arranges cross bath makes end, axle hole have certain elasticity, fixes, utilize the tensioner of attachment screw simultaneously, make fixing more firm in the installing hole that conveniently can insert fusion device body with fusion device body.
Again because described locking screw holes is anti-back nail locking screw, the hole of this locking screw is along being provided with six radial slots, and like this, this locking screw can prevent lock screw from retreating, and makes fixation.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, this utility model is further illustrated.
Fig. 1 is the structure sectional view of this utility model embodiment;
Fig. 2 is the structure chart of fusion device body;
Fig. 3 is the structure chart of lock screw;
Fig. 4 is the structural representation of lockplate;
In accompanying drawing: 1. fusion device body; 2. merge hole; 3. index aperture; 4. anti-slop serrations; 5. installing hole; 6. lockplate; 61. first locking plates; 62. second locking plates; 63. axle holes; 64. screws; 65. cross baths; 66. locking screws; 7. lock screw; 71. cap portions; 72. bar portions; 73. tapered threads.
Detailed description of the invention
Below by specific embodiment, this utility model is described in further detail.
As shown in Figures 1 to 4, a kind of cervical vertebra locking fusion device, comprise fusion device body 1, this fusion device body 1 is provided with the fusion hole 2 of up/down perforation, the upper surface of this fusion device body 1 and lower surface are provided with anti-slop serrations 4, the outer rim of the anti-slop serrations 4 of described upper surface is arranged to the cambered surface of coincideing with the lower surface of the upper cervical spine body of cervical vertebra, and the outer rim of the anti-slop serrations 4 of described lower surface is arranged to the plane of coincideing with the upper surface of the Cervical vertebra body of cervical vertebra; Described fusion device body 1 is also provided with the marker pin that at least one can determine fusion device body 1 position.Preferably, the quantity of this marker pin is one and is installed on the rear end face of fusion device body 1, and the rear end face of fusion device body 1 is provided with index aperture 3, and described marker pin is installed in index aperture 3.This marker pin adopts pure titanium to make.
The anterior end surface of described fusion device body 1 is provided with installing hole 5, is detachably provided with in this installing hole 5 for the fixing lockplate 6 of the front end face of the front end face and Cervical vertebra body with upper cervical spine body.
Wherein, described lockplate 6 comprises axle hole 63 and is connected to first locking plate 61 and second locking plate 62 of an end of axle hole 63, the axes normal of this first locking plate 61 and axle hole 63, first locking plate 61 becomes 180 ° of angles to arrange with the second locking plate 62 relative to the center of axle hole 63, and on the axis direction of axle hole 63, second locking plate 62 is crossing with the first locking plate 61 and towards the other end deflection of axle hole 63, the angle of cut between described first locking plate 61 and the second locking plate 62 is between 10 °-11 °.First locking plate 61 and the second locking plate 62 are respectively arranged with locking screw 66, first locking plate 61 and the second locking plate 62 is fixed by lock screw 7 and the front end face of upper cervical spine body and the front end face of Cervical vertebra body.Described axle hole 63 is provided with through screw 64, the other end of this axle hole 63 is provided with cross bath 65, this axle hole 63 is inserted in described installing hole 5, due to the existence of cross bath 65, therefore, the end of this axle hole 63 has certain elasticity, convenient insertion, be provided with attachment screw in described screw 64, this attachment screw has tensioner effect simultaneously, makes axle hole 63 and installing hole 5 fixation.
Described locking screw holes 64 is anti-back nail locking screw 66, and the hole of this locking screw 66 is along being provided with six radial slots.Described lock screw 7 comprises cap portion 71 and bar portion 72, and this bar portion 72 is provided with tapered thread 73, and this tapered thread 73 is extended to the head end in bar portion 72 by the tail end in bar portion 72.And the size locking screw 66 is less than the external diameter of lock screw 7, and the screw thread of lock screw 7 is tapered thread 73, and so when being screwed into, the end of lock screw 7 enters the locking screw 66 that swells gradually, and locks screw 66 pairs of lock screw 7 and pressurize, anti-retaining nail.
Operation principle of the present utility model is: be inserted in the installing hole 5 of fusion device body 1 by the axle hole 63 of lockplate 6, then attachment screw is screwed into, fusion device body 1 is fixed in lockplate 6, then fusion device body 1 is embedded between upper cervical spine body and Cervical vertebra body, the anti-slop serrations 4 of the upper surface of fusion device body 1 is coincide with the lower surface of upper cervical spine body, the anti-slop serrations 4 of the lower surface of fusion device body 1 coincide with the upper surface of Cervical vertebra body, anti-slop serrations 4 adopts helical teeth shape, convenient embedding, plays anti-skidding effect simultaneously.The first locking plate 61 and the second locking plate 62 that embed lockplate 6 when putting in place are fitted on the front end face of upper cervical spine body and Cervical vertebra body respectively, are then screwed into lock-screw.
Claims (7)
1. a cervical vertebra locking fusion device, comprise fusion device body, it is characterized in that: the fusion hole this fusion device body being provided with up/down perforation, upper surface and the lower surface of this fusion device body are provided with anti-slop serrations, the outer rim of the anti-slop serrations of described upper surface is arranged to the cambered surface of coincideing with the lower surface of the upper cervical spine body of cervical vertebra, and the outer rim of the anti-slop serrations of described lower surface is arranged to the plane of coincideing with the upper surface of the Cervical vertebra body of cervical vertebra; The anterior end surface of described fusion device body is provided with installing hole, is detachably provided with in this installing hole for the fixing lockplate of the front end face of the front end face and Cervical vertebra body with upper cervical spine body.
2. a kind of cervical vertebra locking fusion device as claimed in claim 1, it is characterized in that: described lockplate comprises axle hole and is connected to the first locking plate of an end and second locking plate of axle hole, the axes normal of this first locking plate and axle hole, second locking plate is crossing with the first locking plate and towards the other end deflection of axle hole, first locking plate and the second locking plate are respectively arranged with locking screw, and the first locking plate and the second locking plate are fixed by lock screw and the front end face of upper cervical spine body and the front end face of Cervical vertebra body.
3. a kind of cervical vertebra locking fusion device as claimed in claim 2, is characterized in that: the angle of cut between described first locking plate and the second locking plate is between 10 °-11 °.
4. a kind of cervical vertebra locking fusion device as claimed in claim 3, it is characterized in that: described axle hole is provided with through screw, the other end of this axle hole is provided with cross bath, and this axle hole is inserted in described installing hole, is provided with attachment screw in described screw.
5. a kind of cervical vertebra locking fusion device as claimed in claim 4, is characterized in that: described locking screw holes is anti-back nail locking screw, and the hole of this locking screw is along being provided with six radial slots.
6. a kind of cervical vertebra locking fusion device as claimed in claim 5, it is characterized in that: described lock screw comprises cap portion and bar portion, this bar portion is provided with tapered thread, and this tapered thread extends to the head end in bar portion by the tail end in bar portion.
7. a kind of cervical vertebra locking fusion device as claimed in claim 6, is characterized in that: described fusion device body is also provided with the marker pin that at least one can determine fusion device body position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420541219.8U CN204106172U (en) | 2014-09-19 | 2014-09-19 | A kind of cervical vertebra locking fusion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420541219.8U CN204106172U (en) | 2014-09-19 | 2014-09-19 | A kind of cervical vertebra locking fusion device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204106172U true CN204106172U (en) | 2015-01-21 |
Family
ID=52323542
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420541219.8U Expired - Fee Related CN204106172U (en) | 2014-09-19 | 2014-09-19 | A kind of cervical vertebra locking fusion device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204106172U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112998917A (en) * | 2021-02-19 | 2021-06-22 | 陈赞 | Lower cervical vertebra lateral mass prosthesis |
-
2014
- 2014-09-19 CN CN201420541219.8U patent/CN204106172U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112998917A (en) * | 2021-02-19 | 2021-06-22 | 陈赞 | Lower cervical vertebra lateral mass prosthesis |
| CN112998917B (en) * | 2021-02-19 | 2024-05-28 | 首都医科大学宣武医院 | Lower cervical vertebra side block prosthesis |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150121 |