CN201219922Y - Fixing device for neck two-three anterior interbody operation - Google Patents
Fixing device for neck two-three anterior interbody operation Download PDFInfo
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- CN201219922Y CN201219922Y CNU2008200484048U CN200820048404U CN201219922Y CN 201219922 Y CN201219922 Y CN 201219922Y CN U2008200484048 U CNU2008200484048 U CN U2008200484048U CN 200820048404 U CN200820048404 U CN 200820048404U CN 201219922 Y CN201219922 Y CN 201219922Y
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- cervical
- screw
- neck
- hook plate
- vertebral
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Abstract
The utility model relates to an anterior operation fixing device of a second and a third cervical vertebras, which comprises a cervical vertebral fusion device and a screw of a cervical vertebral body, wherein the cervical vertebral fusion device comprises a body and a hook plate; the body of the cervical vertebral fusion device is provided with a cavity; the hook plate of the cervical vertebral fusion device extends outwards from the body; and the tail end of the hook plate is provided with a screw hole matched with the screw of the cervical vertebral body. With the anterior operation fixing device of the second and the third cervical vertebras, the anterior decompression and fixation of the second and the third cervical vertebras is relatively easy to complete and is free from the influence of the mandible which blocks the cervical vertebra; and the utility model has the advantages of simple structure, ideal fixing effect and relatively simpler positioning operation; and a guide sleeve is used to lead to obtain the ideal direction of nail path and ensure the accuracy of arrangement.
Description
[technical field]
This utility model relates to a kind of fixture, is meant a kind of fixture that is applied on the cervical vertebra specifically.
[background technology]
The cervical vertebra of human body has seven joints, and wherein first and second joint structure is more special, is called atlas and dentata.It below is respectively the three, four ... C7.Seven joint cervical vertebras interconnect by the joint, and the canalis spinalis of every adjacent two cervical spine is interconnected, and forms a successive canalis spinalis, is holding the central nervous tissue that body weight for humans is wanted--spinal cord.When cervical vertebra generation wound or pathological changes, as prolapse of cervical intervertebral disc, cervical spondylosis, cervical vertebra wounds etc. usually need to implement preceding road or posterior decompression, bone-graft fusion and the internal fixation operation of cervical vertebra.In general, in various cervical spondylosis, the chance that comes from the compressing thing appearance in spinal cord the place ahead occupies great majority.So, the decompression on preceding road, internal fixation is a kind of very useful operation method, it is very convenient especially to implement operation in the sequence of neck three～neck seven.
On dissecting, the position of cervical vertebra one, two, three is higher, and it is formed a connecting link, and is positioned at the connecting portion of skull and the next cervical vertebra.Its position exists deeply, and vertebral surface not only has abundant muscle and blood vessel, nerve, and trachea, important structure such as esophagus holds, and is blocked at the rear of the many structures of mandibular bone and oral cavity, and conventional cervical vertebra otch difficulty appears this zone.Generally speaking, decompression between enforcement one, two joint cervical vertebras and fixing more direct approach are the approaches through the oral cavity, though this operation pathway ratio is easier to occur infecting and is not widely accepted, but for the operation that relates to pathological changes between one, the two joint cervical vertebras, also be one and have no alternative but and effective selection.For the anterior decompression and the fixing operation that relate to pathological changes between two, the three joint cervical vertebras, stopping of mandibular bone also is a significant effects factor.Clinical and anatomy is discovered, state in that cervical vertebra is excessively swung back adopts the lower jaw lower cut, can only be exposed to neck two vertebral bodys of part to greatest extent, neck three vertebral bodys and neck two or three intervertebral disc, thus the excision decompression of implementing neck two or three intervertebral disc without the operative approach in oral cavity adopted.But the internal fixation problem after the decompression is very awkward.The anatomic measurement statistics shows that a few peoples (20-30%) group can finish the intervertebral space decompression on neck two or three preceding roads by the lower jaw lower cut, implements the steel plate of two or three on neck and fixes.As shown in Figure 1.But,, finish the fixing difficulty greatly that still exists of steel plate of neck two or three even under the state that mandibular bone is fully swung back for great majority (70-80%) crowd.Because each is separately fixed on neck two and neck three vertebral bodys by 1～2 piece of screw cervical steel plate up and down.In most cases, install than being easier at the epicentral screws of neck three, the existence of mandibular bone then is an obstruction that can not be ignored for installation neck two epicentral screws.Many cases are had to abandon preceding road for this reason and are fixed and use the fixed method of the way of escape instead and finish operation.
Because cervical vertebra faces upward under the state of stretching, fully appear neck two or three gaps and following cervical vertebra structure is possible, will provide convenience real for solving the fixed problem in neck two or three preceding roads so develop a kind of fixed apparatus that is different from conventional steel plate for necessary.
[summary of the invention]
The purpose of this utility model provides that a kind of stability is strong, fixed effect is comparatively desirable, fixing operation neck two-three anterior approach fixtures comparatively simply and easily.
For realizing this utility model purpose, provide following technical scheme:
A kind of neck two-three anterior approach fixtures are provided, and it comprises cervical vertebral fusion cage and vertebral body screw, and this cervical vertebral fusion cage comprises body and hook plate, and the body of cervical vertebral fusion cage is provided with cavity, and the hook plate of cervical vertebral fusion cage is extended by body.
The hook plate tail end of this cervical vertebral fusion cage is provided with the screw that matches with the vertebral body screw, and the screw of this hook plate tail end cavity with the cervical vertebral fusion cage body obliquely is relative, and the vertebral body screw pierces and pass obliquely the cavity of cervical vertebral fusion cage body from screw.
These neck two-three anterior approach fixtures further comprise the guide thimble that matches with hook plate screw and vertebral body screw, this guide thimble head is provided with the screw thread that matches with the hook plate screw, the screw thread of guide thimble head can be connected with the screw of fusion device hook plate, under the guiding of guide thimble, can guarantee by the vertebral body of angle installation accurately screw.
This utility model contrast prior art has the following advantages:
Adopt this utility model neck two-three anterior approach fixtures, the anterior decompression that can finish second and third joint cervical vertebra comparatively easily is with fixing, and the influence that not cervical vertebra is stopped by mandibular bone, and this is simple in structure, fixed effect is more satisfactory, and positioning action is also comparatively simple.In addition,, can obtain ideal nail road direction, guarantee the accuracy of installing by the guiding of guide thimble.
[description of drawings]
Fig. 1 is existing cervical vertebra fixation steel plate structural representation;
Fig. 2 is the structural representation of cervical vertebral fusion cage of the present utility model;
Fig. 3 is the top view of cervical vertebral fusion cage of the present utility model;
Fig. 4 is the front view of cervical vertebral fusion cage of the present utility model;
Fig. 5 is the sketch map of vertebral body screw of the present utility model;
Fig. 6 is the sketch map of guide thimble of the present utility model;
Fig. 7 is screwed into overall structure sketch map behind the cervical vertebral fusion cage for the vertebral body screw;
Fig. 8-11 implements the sketch map of cervical vertebra fixing operation process for adopting this utility model neck two-three anterior approach fixtures.
[specific embodiment]
See also Fig. 2-7, this utility model neck two-three anterior approach fixtures comprise cervical vertebral fusion cage 1 and vertebral body screw 2, this cervical vertebral fusion cage 1 comprises body 11 and hook plate 12, and the body 11 of cervical vertebral fusion cage 1 is provided with cavity 13, and the hook plate 12 of cervical vertebral fusion cage 1 is extended by body 11.
These neck two-three anterior approach fixtures further comprise the guide thimble 3 that matches with hook plate 12 screws 21 and vertebral body screw 2, these guide thimble 3 heads are provided with the screw thread 31 that matches with hook plate screw 21, the screw thread 31 of guide thimble 3 heads can be connected with the screw of cervical vertebral fusion cage hook plate, under the guiding of guide thimble 3, can guarantee by the vertebral body of angle installation accurately screw 2.
See also Fig. 8-11, adopt this utility model neck two-three anterior approach fixtures to carry out cervical vertebra fixedly the time, the patient gets dorsal position, after the tracheal intubation anesthesia success, raises lower jaw as far as possible, and neck is swung back.Aseptic list is spread in sterilization, gets transverse incision under direct otch in throat side or the lower jaw, cuts skin, and subcutaneous tissue along lateral incision deep fascia in the sternocleidomastoid, separates from passivity between vagina vasorum and the trachealgia sheath, appears pathological changes vertebral body and gap.At this moment generally can be exposed to neck two vertebral body lower edges, neck two or three intervertebral disc and neck three vertebral bodys.Owing to stopping of mandibular bone, appear relatively difficulty of neck two vertebral bodys.Use sharp knife, curet after the pathological interspinal dish is extractd in pneumatic high speed abrasive drilling, is handled terminal plate of vertebral body, behind the polishing neck three vertebral body lower edges, selects the cervical vertebral fusion cage 1 of one piece of suitable size, and cavity 13 parts are inserted behind the body skeletal grain, and guide thimble 3 is attached thereto (step 1).The cervical vertebral fusion cage 1 that will be connected with guide thimble 3 then inserts neck two or three intervertebral spaces (step 2), under the guiding of guide thimble 3, with drill bit by neck three and the neck two vertebral bodys (step 3) of holing, remove guide thimble 3 at last, be screwed into one piece of vertebral body screw 2 along boring direction, finish fixing (step 4).
The characteristics of this apparatus are, it and the fixed max difference of conventional steel plate be, it to cervical vertebra appear less demanding, in the time of operation, only need to be exposed to the following part of neck two or three intervertebral disc and can finish fixing.Be screwed into before the vertebral body screw 2, by the guiding of guide duct 3, holing obtains ideal nail road direction, and the lower edge through neck three vertebral bodys is screwed into one piece of vertebral body screw 2 obliquely then.The influence that its operation is stopped by mandibular bone is significantly smaller than conventional steel plate, is a kind of fixing more satisfactory surgery systems in neck two or three preceding roads that is used for.
The above only is a preferable embodiment of the present utility model; protection domain of the present utility model is not limited thereto, and those of skill in the art are any to be included within this utility model protection domain based on non-material change on the technical solutions of the utility model.
Claims (4)
1, a kind of neck two-three anterior approach fixtures, it is characterized in that, it comprises cervical vertebral fusion cage and vertebral body screw, this cervical vertebral fusion cage comprises body and hook plate, the body of cervical vertebral fusion cage is provided with cavity, the hook plate of cervical vertebral fusion cage is extended by body, and the hook plate tail end is provided with the screw that matches with the vertebral body screw.
2, neck two-three anterior approach fixtures as claimed in claim 1 is characterized in that the screw of this hook plate tail end cavity with the cervical vertebral fusion cage body obliquely is relative.
3, neck two-three anterior approach fixtures as claimed in claim 2 is characterized in that it further comprises the guide thimble that matches with hook plate screw and vertebral body screw.
4, neck two-three anterior approach fixtures as claimed in claim 3 is characterized in that this guide thimble head is provided with the screw thread that matches with the hook plate screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200484048U CN201219922Y (en) | 2008-05-28 | 2008-05-28 | Fixing device for neck two-three anterior interbody operation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200484048U CN201219922Y (en) | 2008-05-28 | 2008-05-28 | Fixing device for neck two-three anterior interbody operation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201219922Y true CN201219922Y (en) | 2009-04-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200484048U Expired - Fee Related CN201219922Y (en) | 2008-05-28 | 2008-05-28 | Fixing device for neck two-three anterior interbody operation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201219922Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107928844A (en) * | 2017-12-22 | 2018-04-20 | 北京大学第三医院 | Atlas and axis Lateral mass joint fixes fusing device |
| WO2022052487A1 (en) * | 2020-09-09 | 2022-03-17 | 袁峰 | Self-stabilising fusion cage between posterior cervical articular processes |
-
2008
- 2008-05-28 CN CNU2008200484048U patent/CN201219922Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107928844A (en) * | 2017-12-22 | 2018-04-20 | 北京大学第三医院 | Atlas and axis Lateral mass joint fixes fusing device |
| CN107928844B (en) * | 2017-12-22 | 2024-03-12 | 北京大学第三医院 | Atlantoaxial lateral mass joint fixing fusion device |
| WO2022052487A1 (en) * | 2020-09-09 | 2022-03-17 | 袁峰 | Self-stabilising fusion cage between posterior cervical articular processes |
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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: 20090415 Termination date: 20100528 |