CN206560464U - A kind of posterior cervical vertebral canal expansion bridge - Google Patents
A kind of posterior cervical vertebral canal expansion bridge Download PDFInfo
- Publication number
- CN206560464U CN206560464U CN201621159776.9U CN201621159776U CN206560464U CN 206560464 U CN206560464 U CN 206560464U CN 201621159776 U CN201621159776 U CN 201621159776U CN 206560464 U CN206560464 U CN 206560464U
- Authority
- CN
- China
- Prior art keywords
- connecting rod
- rod section
- curved bar
- bar portion
- transverse link
- 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
Landscapes
- Surgical Instruments (AREA)
Abstract
The utility model is related to technical field of medical instruments, especially a kind of posterior cervical vertebral canal expansion bridge.It includes the longitudinal rod and at least one transverse link of two parallel distributeds, the pedicle screw of at least two parallel distributeds is equiped with every longitudinal rod, transverse link is horizontally placed between two longitudinal rods, and the outer end of transverse link is connected on longitudinal rod and between two adjacent pedicle nails；Region on transverse link and between two longitudinal rods is formed with arc-shaped curvature portion.The supporting role that the utility model is played using arc-shaped curvature portion, can be after the completion of operation, strong support effect is formed to skin histology, enough spaces are provided for the nerve between intraspinal tube or vertebral plate, avoid transverse link from occurring the phenomenon bent after compressing for a long time by skin histology, and then effectively prevent postoperative skin tissue or transverse link in itself causing nerve compressing；Its is simple in construction, is conducive to improving the success rate performed the operation and ensures surgical effect.
Description
Technical field
The utility model is related to technical field of medical instruments, especially a kind of posterior cervical vertebral canal expansion bridge.
Background technology
With people's rhythm of life and the quickening of aging population, the incidence of disease more and more higher of cervical spondylopathy is occurred in that all
Such as cervical spine degeneration, narrow, osteoproliferation, cervical spine instabily clinical pathology sign, have had a strong impact on daily life and the work of patient
Make.At present, the surgical operation such as anterior cervical operation, cervical posterior approach, cervical vertebra Anterior-posterior operation is to be directed to cervical vertebra
One of effective treatment method of disease, it by recovering the normal sequence of cervical vertebra and the curvature of cervical vertebra, height and mobility etc. again
To maintain the stability of cervical vertebra, and improve bone compression nervous function；Wherein, cervical posterior approach by vertebral plate by raising, expanding
Big vertebral canal volume, the means such as the compressing to nerve are released for being associated with stenosis, ossified posterior longitudinal ligament and many
The patient of section severe herniation of cervical disc, has the advantages that irreplaceable.
In cervical posterior approach, expansion bridge as the inner fixing device between cervical vertebra plate, its success or failure to operation with
And the effect of operation has vital influence.Fig. 1 shows the basic structure of traditional expansion bridge, and it is mainly by pedicle of vertebral arch
Follow closely to offer on the composition such as a, longitudinally connected rod b, lateral connection rod c and locking cap d, locking cap d and worn for longitudinally connected rod b
Vacant hole b1 and for lateral connection rod c wear through hole b2, vacant hole b1 open up direction and through hole b2 open up direction phase
Vertically；When expanding bridge shaping assembling, first two longitudinally connected rod b are set parallel and filled on every longitudinally connected rod b
If at least two parallel arrangement of pedicle nail a and at least one locking cap d, then lateral connection rod c is horizontally placed on two longitudinal directions
Between pitman b and lateral connection rod c two ends are locked on locking cap d respectively；So as to using on every longitudinally connected rod b
Two different longitudinally connected rod b can be individually fixed on the vertebral plate for needing to separate by pedicle nail a, and utilize lateral connection rod
C controls the distance between two longitudinally connected rod b, to realize the enabling of cervical vertebra plate.However, traditional expansion bridge is but present
Following defect：1st, after the completion of performing the operation, because lateral connection rod c generally uses the structure of straight-bar so that expansion bridge is in itself in muscle
It is easy to that secondary compressing can be caused the nerve intraspinal tube or vertebral plate under the oppression of tissue, so that two can be caused to patient
Secondary injury, can cause operative failure when serious；2nd, in operation, the assembling of expansion bridge is very cumbersome and operation is extremely difficult, by
In cervical vertebra plate can rod b longitudinally connected to two produce opposite power so that when carrying out lateral connection rod c and fixing, it is difficult to will
Lateral connection rod c is arranged in locking cap d and realizes final fixation, and due to can not smoothly control lateral connection rod c,
The enabling distance of cervical vertebra plate, which can be caused, to be controlled easily in predetermined scope.
Utility model content
The deficiency existed for above-mentioned prior art, the purpose of this utility model is that providing a kind of posterior cervical canalis spinalis expands
Zhang Qiao.
To achieve these goals, the utility model is adopted the following technical scheme that：
A kind of posterior cervical vertebral canal expansion bridge, the longitudinal rod and at least one transverse direction that it includes two parallel distributeds connects
The pedicle screw of at least two parallel distributeds is equiped with bar, the every longitudinal rod, the transverse link is horizontally placed on
Between two longitudinal rods, the outer end of the transverse link is connected on longitudinal rod and positioned at two adjacent pedicle nails
Between；Region on the transverse link and between two longitudinal rods is formed with arc-shaped curvature portion.
Preferably, the transverse link includes left connecting rod section and right connecting rod section, and the left connecting rod section and right connecting rod section are wrapped
Include curved bar portion and be formed at the bite of the outer end in curved bar portion, the bite of the left connecting rod section and the occlusion portion of right connecting rod section
It is not snapped on corresponding longitudinal rod, camber line is formed after the curved bar portion of the left connecting rod section and the curved bar portion split of right connecting rod section
Bending section, the inner in the curved bar portion of left connecting rod section be overlapped in the inner in the curved bar portion of right connecting rod section and by simultaneously through
The curved bar portion of lock shaft and the right connecting rod of the curved bar portion of left connecting rod section and the cranked portion cloth of right connecting rod section section is sealed to be integrated.
Preferably, the transverse link includes left connecting rod section and right connecting rod section, and the left connecting rod section and right connecting rod section are wrapped
Include straight-bar portion and curved bar portion, the straight-bar portion of the left connecting rod section and the straight bar part of right connecting rod section not with corresponding longitudinal rod phase
Even, curvature portion is formed after the curved bar portion of the left connecting rod section and the curved bar portion split of right connecting rod section, the left connecting rod section
The inner in curved bar portion is overlapped in the inner in the curved bar portion of right connecting rod section and by simultaneously through the curved bar portion and the right side of left connecting rod section
The curved bar portion of lock shaft and the right connecting rod of the cranked portion cloth of connecting rod section section is sealed to be integrated.
Preferably, it also includes the fixation lock nut for being placed in the outer side of transverse link, and the fixed lock nut is included vertically
The lock cap body and screw thread that direction offers internal thread hole are socketed on split nut in lock cap body, the lock cap body radially
Offer and be radially additionally provided with one and internal thread on the first side position breach, and the lock cap body communicated with internal thread hole
The second side position breach that hole is communicated, the second side position breach is located in the region between the first side position breach and split nut, and
Second side position breach open up direction and the first side breach to open up direction perpendicular；The lock cap body passes through the first side
Position breach is socketed on corresponding longitudinal rod, is socketed on the outer end of transverse link, the lock spiral shell by the second side position breach
It is female to be integrated the locking of transverse link, lock cap body and corresponding longitudinal rod by being offseted with transverse link.
As a result of such scheme, the supporting role that the utility model is played using arc-shaped curvature portion can be in operation
After the completion of, strong support effect is formed to skin histology, enough spaces are provided for the nerve between intraspinal tube or vertebral plate,
Avoid transverse link from occurring the phenomenon bent after compressing for a long time by skin histology, and then effectively prevent postoperative skin group
Knit or transverse link causes compressing to nerve in itself；Its is simple in construction, is conducive to improving the success rate performed the operation and ensures operation
Effect, with very strong practical value and market popularization value.
Brief description of the drawings
Fig. 1 is the assembling structure schematic diagram for expanding bridge in the prior art；
Fig. 2 is the Standard schematic diagram of the expansion bridge of the utility model embodiment；
Fig. 3 is the structural representation of the transverse link of the utility model the first embodiment；
Fig. 4 is the structural representation of the transverse link of second of embodiment of the utility model；
Fig. 5 is the structural representation of the transverse link of the utility model the third embodiment.
Embodiment
Embodiment of the present utility model is described in detail below in conjunction with accompanying drawing, but the utility model can be by right
It is required that the multitude of different ways for limiting and covering is implemented.
As shown in Figures 1 to 5, a kind of posterior cervical vertebral canal expansion bridge that the present embodiment is provided, it includes two parallel point
The longitudinal rod 1 of cloth and at least one transverse link 2, at least two parallel distributeds are equiped with every longitudinal rod 1
Pedicle screw 3, transverse link 2 is horizontally placed between two longitudinal rods 1, meanwhile, the outer end of transverse link 2 is connected to vertical
On to connecting rod 1 and between two adjacent pedicle nails 3；On transverse link 2 and between two longitudinal rods 1
Region is formed with arc-shaped curvature portion e.With this, in cervical posterior approach, using the pedicle nail 3 on corresponding longitudinal rod 1
Different longitudinal rods 1 is fixed on to the both sides of canalis spinalis opening or vertebral plate opening, so that two symmetric arrays of longitudinal rod 1,
Two longitudinal rods 1 then are fixed using transverse link 2, so that the distance between two longitudinal rods 1 are appraised and decided in preset range
It is interior, that is, keep the size of opening；After the completion of operation, due to arc-shaped curvature portion e effect, it can form strong to skin histology
Support, enough spaces are provided for the nerve between intraspinal tube or vertebral plate, it is to avoid transverse link 2 is for a long time by skin histology
Compressing after there is the phenomenon bent, and then effectively prevent postoperative skin tissue or transverse link 2 itself is caused to nerve
Compressing.
The convenience that expansion bridge is assembled is improved for reduction expansion bridge structural complexity in itself and to greatest extent, this implementation
The transverse link 2 of example can use integral structure as the case may be（As shown in Figure 2）, can also use split-type structural.This reality
The transverse link 2 for applying example can be using structure type as shown in Figure 3 and Figure 4, i.e.,：Including left connecting rod section 21 and right connecting rod section 22,
Left connecting rod section 21 and right connecting rod section 22 include curved bar portion f and are formed at the bite g of curved bar portion f outer end（Bite g can root
According to concrete condition using the structure type of barb or the structure type of bite, wherein, structure type such as Fig. 3 institutes of barb
Showing --- opening direction of barb is towards curved bar portion f raised side, and the structure type of bite is then as shown in Figure 4 --- sting
The opening direction of hook is towards the side of curved bar portion f depression）, the occlusion portion of bite and the right connecting rod section 22 of left connecting rod section 21
It is not snapped on corresponding longitudinal rod 1, is formed after the curved bar portion f of left connecting rod section 21 and the curved bar portion g splits of right connecting rod section 22
Curvature portion e, the curved bar portion f of left connecting rod section 21 the inner is overlapped in the curved bar portion f of right connecting rod section 22 the inner and by same
When through left connecting rod section 21 curved bar portion f and right connecting rod section 22 curved bar portion f distribution lock shaft 4（It can be as the case may be
Using handwares such as screw, screws）Sealed it is integrated with the curved bar portion f of right connecting rod section 22.With this, when two longitudinal rods
After 1 is fixed by pedicle screw 3, each connecting rod section is engaged on corresponding longitudinal rod 1 by respective bite g respectively,
Then the radian of transverse link 2 is adjusted using lock shaft 4（I.e.：Arc-shaped curvature portion e radian）And finally lock, so as to avoid out
The problem of existing conventional expansion bridge needs to carry out troublesome operation in assembling, is conducive to improving the efficiency performed the operation.
Certainly, the transverse link 2 of the present embodiment can also use structure as shown in Figure 5, i.e.,：Including left connecting rod section 21 and the right side
Connecting rod section 22, left connecting rod section 21 and right connecting rod section 22 include straight-bar portion h and curved bar portion f, the straight-bar portion h of left connecting rod section 21 and the right side
The straight-bar portion h of connecting rod section 22 is connected with corresponding longitudinal rod 1 respectively, curved bar portion f and the right connecting rod section 22 of left connecting rod section 21
Curvature portion e is formed after the f splits of curved bar portion, the curved bar portion f of left connecting rod section 21 the inner is overlapped in the curved bar of right connecting rod section 22
Portion f the inner and the lock shaft 4 being distributed by curved bar portion f and the curved bar portion f of right connecting rod section 22 simultaneously through left connecting rod section 21
Sealed it is integrated with the curved bar portion f of right connecting rod section 22.Now, matched somebody with somebody using parts such as the locking caps on conventional expansion bridge
Close, straight-bar portion h that will be in each connecting rod section is directly inserted into the through hole of the locking cap on corresponding longitudinal rod 1；Recycle
The radian of the adjustment transverse link 2 of lock shaft 4 is simultaneously finally locked；With this, the complexity that expansion bridge is assembled in operation, drop can be also reduced
Low operating difficulty.
Because the locking cap of conventional expansion bridge is to be fixedly connected using the form of through hole sleeve with corresponding connecting rod, it is
The structure of traditional locking cap is improved, can be adapted to use with the structure of the transverse link 2 of the present embodiment, be used as one
Preferred scheme, as shown in Fig. 2 the expansion bridge of the present embodiment also includes the fixation lock nut 5 for being placed in the outer side of transverse link 2, Gu
Lock cap 5 is including in axial direction offering the split nut that the lock cap body 51 and screw thread of internal thread hole are socketed in lock cap body 51
52, a first side position breach k communicated with internal thread hole is radially offered on lock cap body 51, and on lock cap body 51
A the second side position breach m communicated with internal thread hole is radially additionally provided with, the second side position breach m is located at the first side position breach
In region between k and split nut 52, and the second side position breach m open up direction and the first side breach k open up direction phase
Vertically；Lock cap body 51 is socketed on corresponding longitudinal rod 1 by the first side position breach k, is socketed on by the second side position breach m
The outer end of transverse link 2（Such as above-mentioned straight-bar portion h is directly entrenched in the breach m of the second side position by the side of lock cap body 51
, without carrying out sleeve operation）, split nut 52 to transverse link 2 by offseting transverse link 2, lock cap body 51 and corresponding
Longitudinal rod 1 locking be integrated.
Preferred embodiment of the present utility model is the foregoing is only, the scope of the claims of the present utility model is not thereby limited,
Equivalent structure or equivalent flow conversion that every utilization the utility model specification and accompanying drawing content are made, or directly or indirectly fortune
Used in other related technical fields, similarly it is included in scope of patent protection of the present utility model.
Claims (4)
1. a kind of posterior cervical vertebral canal expansion bridge, the longitudinal rod and at least one transverse direction that it includes two parallel distributeds connect
The pedicle screw of at least two parallel distributeds is equiped with bar, the every longitudinal rod, the transverse link is horizontally placed on
Between two longitudinal rods, the outer end of the transverse link is connected on longitudinal rod and positioned at two adjacent pedicle nails
Between；It is characterized in that：Region on the transverse link and between two longitudinal rods is formed with arc-shaped curvature portion.
2. a kind of posterior cervical vertebral canal expansion bridge as claimed in claim 1, it is characterised in that：The transverse link includes left company
Bar segment and right connecting rod section, the left connecting rod section and right connecting rod Duan Jun include curved bar portion and are formed at the occlusion of the outer end in curved bar portion
Portion, the bite of the left connecting rod section and the bite of right connecting rod section are snapped on corresponding longitudinal rod respectively, the left company
Curvature portion, the inner in the curved bar portion of the left connecting rod section are formed after the curved bar portion split of the curved bar portion of bar segment and right connecting rod section
It is overlapped in the inner in the curved bar portion of right connecting rod section and by simultaneously through the curved bar portion of left connecting rod section and the curved bar of right connecting rod section
The curved bar portion of the lock shaft of part cloth and right connecting rod section is sealed to be integrated.
3. a kind of posterior cervical vertebral canal expansion bridge as claimed in claim 1, it is characterised in that：The transverse link includes left company
Bar segment and right connecting rod section, the left connecting rod section and right connecting rod Duan Jun include straight-bar portion and curved bar portion, the straight-bar of the left connecting rod section
The straight bar part of portion and right connecting rod section is not connected with corresponding longitudinal rod, the curved bar portion of left connecting rod section and right connecting rod section
Curvature portion is formed after the split of curved bar portion, the inner in the curved bar portion of the left connecting rod section is overlapped in the curved bar portion of right connecting rod section
It is inner and by simultaneously through the lock shaft and right connecting rod section of the curved bar portion of left connecting rod section and the cranked portion cloth of right connecting rod section
Curved bar portion is sealed to be integrated.
4. a kind of posterior cervical vertebral canal expansion bridge as described in claim 1 or 3, it is characterised in that：It also includes being placed in transverse direction
The fixation lock nut of the outer side of connecting rod, the fixed lock nut includes the lock cap body and screw thread in axial direction offering internal thread hole
It is socketed on and a first side position communicated with internal thread hole is radially offered on the split nut in lock cap body, the lock cap body
A the second side position breach communicated with internal thread hole, second side are radially additionally provided with breach, and the lock cap body
Position breach is located in the region between the first side position breach and split nut, and second side position breach opens up direction and first
Side position breach to open up direction perpendicular；The lock cap body is socketed on corresponding longitudinal rod by the first side position breach, led to
Cross the second side position breach and be socketed on the outer end of transverse link, the split nut by with transverse link offset by transverse link,
Lock cap body and the locking of corresponding longitudinal rod are integrated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621159776.9U CN206560464U (en) | 2016-11-01 | 2016-11-01 | A kind of posterior cervical vertebral canal expansion bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621159776.9U CN206560464U (en) | 2016-11-01 | 2016-11-01 | A kind of posterior cervical vertebral canal expansion bridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206560464U true CN206560464U (en) | 2017-10-17 |
Family
ID=60029981
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621159776.9U Active CN206560464U (en) | 2016-11-01 | 2016-11-01 | A kind of posterior cervical vertebral canal expansion bridge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206560464U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110680489A (en) * | 2019-11-07 | 2020-01-14 | 张骏 | Thoracic vertebra ligamentum flavum ossification complex backward moving device and use method thereof |
-
2016
- 2016-11-01 CN CN201621159776.9U patent/CN206560464U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110680489A (en) * | 2019-11-07 | 2020-01-14 | 张骏 | Thoracic vertebra ligamentum flavum ossification complex backward moving device and use method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9763805B2 (en) | Spacer with temporary fixation plate | |
| Yazici et al. | Growing rod concepts: state of the art | |
| CN201977917U (en) | Non-fusion elastic rod internal fixing system | |
| CN101332116B (en) | Spinal crest elastic internal fixation device | |
| JP2019022708A (en) | Spinal implant system and methods of use | |
| EP1609444A1 (en) | Implant capable of being implanted through a pedicle for vertebral body reconstruction | |
| CN206560464U (en) | A kind of posterior cervical vertebral canal expansion bridge | |
| CN107530108A (en) | Bone implant with tether band | |
| CN204410946U (en) | A kind of elastic vertebra dynamic pedicle screw system | |
| CN204410947U (en) | A kind of can the vertebra dynamic pedicle screw system of fine motion | |
| CN203280546U (en) | Dynamically-stable spinous process clamp | |
| CN208274609U (en) | A kind of variable diameter spinous process fusion Interal fixation system | |
| CN101601603B (en) | Posterior atlantoaxial restricted internal fixation device | |
| CN105266929B (en) | A kind of composable allosome cortex axis of bone is to fusion device | |
| CN103040512B (en) | Spinal deformity correcting instrument | |
| CN101612056B (en) | Lumbar processus spinosus prop-open device | |
| CN205903296U (en) | Basin damage is with internal fixation device that resets at bottom of waist | |
| CN209332231U (en) | A kind of orthopedic spinal apparatus for correcting | |
| CN201542728U (en) | Posterior atlantoaxial non-fusion internal fixation device | |
| CN209464073U (en) | A kind of orthopedics and traumatology spinal fixing device | |
| CN111529146A (en) | Zero-notch adjustable artificial vertebral body | |
| CN2598519Y (en) | Intenral fixed device for vertebral arch pedicle of vertebral column | |
| CN204708956U (en) | Passing by vertebral pedicle in front of cervical vertebra inner fixing device | |
| CN205031351U (en) | Orthopedic connective bar of using of backbone way of escape of preflex | |
| CN105213006A (en) | Upper cervical spine anterior stabilization inner fixer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |