CN209122320U - A kind of percutaneous cervical arc root nail replacement and fixation distraction reduction device - Google Patents
A kind of percutaneous cervical arc root nail replacement and fixation distraction reduction device Download PDFInfo
- Publication number
- CN209122320U CN209122320U CN201821614715.6U CN201821614715U CN209122320U CN 209122320 U CN209122320 U CN 209122320U CN 201821614715 U CN201821614715 U CN 201821614715U CN 209122320 U CN209122320 U CN 209122320U
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- handle
- positioning tooth
- pin shaft
- rear end
- slide opening
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- 230000001105 regulatory effect Effects 0.000 claims description 15
- 230000002459 sustained effect Effects 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 abstract description 6
- 210000003205 muscle Anatomy 0.000 description 4
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 230000006378 damage Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000002980 postoperative effect Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 208000008035 Back Pain Diseases 0.000 description 1
- 208000008930 Low Back Pain Diseases 0.000 description 1
- 208000020339 Spinal injury Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 238000011443 conventional therapy Methods 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000002638 denervation Effects 0.000 description 1
- 239000007943 implant Substances 0.000 description 1
- 238000002324 minimally invasive surgery Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035764 nutrition Effects 0.000 description 1
- 235000016709 nutrition Nutrition 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000009738 saturating Methods 0.000 description 1
- 231100000241 scar Toxicity 0.000 description 1
- 108010048734 sclerotin Proteins 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 210000001032 spinal nerve Anatomy 0.000 description 1
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Abstract
The utility model relates to the field of medical instrument technology, replacement and fixation distraction reduction device is followed closely more particularly to a kind of percutaneous cervical arc root, including first handle, second handle, first pin shaft, positioning tooth bar, second pin shaft, reset spring, fixed block, angle modulation screw, connector, third pin shaft, strut bar and root nail sleeve, first handle rear end offers slide opening, described positioning tooth bar one end is hinged by the second pin shaft and second handle rear end, the other end passes through slide opening and is fixedly connected with limited block, the positioning tooth bar front end face is provided with positioning tooth, slide opening front side hole wall is cambered surface, it is offered in cambered surface and the intermeshing engaging tooth of positioning tooth, hole wall is fixed with reset spring on rear side of the slide opening, reset spring movable end is resisted against on the rear end face of positioning tooth bar, the first arc notch is provided at described nail sleeve lower ending opening.The distraction reduction device is easy to operate using simple, and dilator is fixed simple and reliable after strutting, and the angular adjustment of root nail sleeve is convenient.
Description
Technical field
The utility model relates to the field of medical instrument technology, and in particular to a kind of percutaneous cervical arc root nail replacement and fixation is with strutting
Restorer.
Background technique
Thoracolumbar fracture refers to since external force causes the successional destruction of Thoracolumbar disk sclerotin, is common spinal injury.It passes
The spinal operation mode of system is open reset, decompression and interior fixation, need to cut removing paraspinal muscle, different degrees of damage extensively
Paravertebral muscles and posterior ramus of spinal nerve, postoperative back deep musculature denervation nutrition, adhesion and scar be postoperative waist without
The main reason for power, lumbago.
Minimally invasive spine surgical becomes more and more popular at present, and an important component of minimal invasive techniques is percutaneous cervical arc root spiral shell
Nail technology.Percutaneous vertebral internal fixation makes to have reduced to most the disturbance of paravertebral muscles since its special connecting rod is placed in technology
Few degree is truly realized minimally invasiveization concept.The technology is by the accurate positioning and design of preoperative iconography equipment, by small
Notch percutaneously implants fixing screws, achievees the purpose that reset, fixed fracture, avoid the big notch of conventional therapy,
Extensive muscle removing, the disadvantage that bleeding is more, wound is big, conducive to patient early rehabilitation and be obviously shortened the hospital stays, be placed in
Hold-down bars is set into the stern notch of pedicle screw by setting stick device after pedicle screw, hold-doun nut is tightened and screws again, saturating
Depending on instructing lower dilator distraction reduction, sew up the incision all hold-doun nuts are tightened after vertebral height recovery satisfaction again, it is existing
Dilator it is inconvenient, since the interference of notch skin is not easy to be inserted into when being percutaneously inserted into, dilator is strutting root nail sleeve
After be not easy to fix, and since the pedicle screw of insertion is mostly splayed, so the root nail sleeve angle of dilator will be convenient for
It adjusts.
Utility model content
The utility model to solve the above problems, devises a kind of percutaneous cervical arc root nail replacement and fixation with strutting
Restorer, the distraction reduction device is easy to operate using simple, and dilator fixes simple and reliable, and the angle of root nail sleeve after strutting
It spends easy to adjust.
In order to achieve the above technical purposes, reach above-mentioned technical effect, the utility model is real by the following technical programs
Existing:
A kind of percutaneous cervical arc root follows closely replacement and fixation distraction reduction device, including first handle, second handle, the first pin shaft,
Positioning tooth bar, reset spring, fixed block, angle modulation screw, connector, third pin shaft, struts bar and root nail set at the second pin shaft
Cylinder, the first handle and second handle are hinged to X-shaped by the first pin shaft, and first handle rear end offers slide opening, described fixed
Position rack gear one end is hinged by the second pin shaft and second handle rear end, and the other end passes through slide opening and is fixedly connected with limited block, described
Positioning tooth bar front end face is provided with positioning tooth, and slide opening front side hole wall is cambered surface, offers in cambered surface and positioning tooth is intermeshing nibbles
Tooth is closed, hole wall is fixed with reset spring on rear side of the slide opening, and reset spring movable end is resisted against on the rear end face of positioning tooth bar, institute
It states first handle front end and second handle front end and is respectively and fixedly provided with fixed block, the fixed block front end face offers circular groove, Gu
Determine block upper surface and offer the round regulating tank penetrated through with circular groove side, offers circumferential sliding slot in round regulating tank, circle
Angle modulation screw is equipped in shape regulating tank, the connector includes connecting column and the articulated section for being fixed on connecting column front end, institute
It states connection column outer wall and is uniformly provided with the first engaging tooth along axial direction, connecting column is plugged in circular groove, the articulated section and support
Rear end of starting is hinged by third pin shaft, struts bar front end and is vertically and fixedly provided with root nail sleeve, at described nail sleeve lower ending opening
It is provided with the first arc notch；
The angle modulation screw is made of nut and the screw rod being fixedly connected with nut, and the screw rod is plugged in round tune
It saves in slot, screw rod upper end is fixed with the circumferential projection being adapted to circumferential sliding slot, circumferentially uniform on the screw rod of circumferential projection lower end
It offers and is intermeshed with intermeshing second engaging tooth of the first engaging tooth, the second engaging tooth and the first engaging tooth, play resistance
The effect for hindering connecting column to rotate, the screw rod outer wall and connecting column sustained height position are provided with arc notch, when arc notch turns
When to round regulating tank with circular groove connectivity part, the size of arc notch can accommodate the normal rotation of connecting column.
Further, elastic reset item is provided between the first handle and second handle, the elastic reset item has
Two, two elastic reset front ends are movably hinged, and rear end is separately fixed on the inside of first handle and on the inside of second handle.
Further, the first handle rear end and second handle rear end are provided with antiskid groove.
The beneficial effects of the utility model are: the distraction reduction device uses simply, and it is easy to operate, when being strutted,
Positioning tooth bar is moved backward, and the positioning tooth of positioning tooth bar is separated with engaging tooth, and distraction reduction device unclamps after strutting suitable position
Positioning tooth bar, the engaging tooth of the positioning tooth of positioning tooth bar and slide opening front side hole wall intermeshes progress under the action of reset spring
Position is fixed, and fixation is simple and reliable；It is easily adjusted by the angle that angle modulation screw can follow closely sleeve to root, makes it
It is better suited for being placed in the angle of intraspinal pedicle screw, carries out corpus vertebrae replacement convenient for dilator distraction pedicle screw；Root
Nail sleeve lower end is provided with arc notch, reduces interference of the Minimally Invasive Surgery incision skin to root nail sleeve insertion when.
Detailed description of the invention
In order to illustrate more clearly of the technical solution of the utility model embodiment, make required for being described below to embodiment
Attached drawing is briefly described, it should be apparent that, the drawings in the following description are merely some embodiments of the present invention,
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings
Other attached drawings.
Fig. 1 is a kind of top view of percutaneous cervical arc root nail replacement and fixation distraction reduction device；
Fig. 2 be in Fig. 1 A-A to cross-sectional view；
Fig. 3 is schematic enlarged-scale view at B in Fig. 1；
Fig. 4 is connector, struts bar and root nail tube-in-tube structure schematic diagram；
Fig. 5 is the structural schematic diagram of angle modulation screw.
In attached drawing, parts list represented by the reference numerals are as follows:
1- first handle, 11- slide opening, 111- engaging tooth, 112- reset spring, 12- second handle, 13- elastic reset item,
The first pin shaft of 14-, 2- positioning tooth bar, 21- positioning tooth, the second pin shaft of 22-, 23- limited block, 3- fixed block, 31- angular adjustment spiral shell
Nail, 311- nut, 312- screw rod, 313- circumferential projection, 314- arc notch, the second engaging tooth of 315-, 32- circular groove, 33-
Round regulating tank, 331- circumferential direction sliding slot, 4- connector, 41- connecting column, the first engaging tooth of 411-, the articulated section 42-, 5- strut bar,
51- third pin shaft, 6- root follow closely sleeve, the first arc notch of 61-.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without creative efforts
All other embodiment obtained, fall within the protection scope of the utility model.
Refering to fig. 1 shown in -5, a kind of percutaneous cervical arc root nail replacement and fixation distraction reduction device, including first handle 1, second
Handle 12, positioning tooth bar 2, the second pin shaft 22, reset spring 112, fixed block 3, angle modulation screw 31, connects first pin shaft 14
Fitting 4, third pin shaft 51 strut bar 5 and root nail sleeve 6, and the first handle 1 and second handle 12 are cut with scissors by the first pin shaft 14
It is connected into X-shaped, 1 rear end of first handle offers slide opening 11, and described 2 one end of positioning tooth bar passes through the second pin shaft 22 and second handle 12
Rear end is hinged, and the other end passes through slide opening 11 and is fixedly connected with limited block 23, and 2 front end face of positioning tooth bar is provided with positioning tooth 21,
11 front side hole wall of slide opening is cambered surface, is offered in cambered surface and the intermeshing engaging tooth 111 of positioning tooth 21,11 rear side of slide opening
Hole wall is fixed with reset spring 112, and 112 movable end of reset spring is resisted against on the rear end face of positioning tooth bar 2, the first handle
1 front end and 12 front end of second handle are respectively and fixedly provided with fixed block 3, and 3 front end face of fixed block offers circular groove 32, fixed block
3 upper surfaces offer the round regulating tank 33 with the perforation of 32 side of circular groove, offer circumferential sliding slot in round regulating tank 33
331, round regulating tank 33 is interior to be equipped with angle modulation screw 31, and the connector 4 includes connecting column 41 and is fixed on connecting column 41
The articulated section 42 of front end, 41 outer wall of connecting column are uniformly provided with the first engaging tooth 411 along axial direction, and connecting column 41 is plugged in circle
In connected in star 32, the articulated section 42 passes through third pin shaft 51 hingedly with 5 rear end of bar is strutted, and struts 5 front end of bar and is vertically and fixedly provided with
Root follows closely sleeve 6, is provided with the first arc notch 61 at described nail 6 lower ending opening of sleeve, arc notch 61 can reduce minimally invasive hand
Interference when art incision skin is inserted into root nail sleeve 6；
The angle modulation screw 31 is made of nut 311 and the screw rod being fixedly connected with nut 31 312, the screw rod
312 are plugged in round regulating tank 33, and 312 upper end of screw rod is fixed with the circumferential projection 313 being adapted to circumferential sliding slot 331, circumferential
Circumferentially be uniformly provided on the screw rod 312 of raised 313 lower ends with intermeshing second engaging tooth 315 of the first engaging tooth 411,
Second engaging tooth 315 and the first engaging tooth 411 are intermeshed, and play the role of that connecting column 41 is hindered to rotate, outside the screw rod 312
Wall and 41 sustained height position of connecting column are provided with arc notch 314, when arc notch 314 goes to round regulating tank 33 and circle is recessed
When 32 connectivity part of slot, the size of arc notch 314 can accommodate the normal rotation of connecting column 41.
It is therein, elastic reset item 13, the elastic reset item are provided between the first handle 1 and second handle 12
13 have two, and two 13 front ends of elastic reset item are movably hinged, and rear end is separately fixed at 1 inside of first handle and second handle 12
Inside.
Therein, 1 rear end of first handle and 12 rear end of second handle are provided with antiskid groove.
One concrete application of the present embodiment are as follows: when using percutaneous cervical arc root screw technology treatment thoracolumbar fracture, setting
Hold-down bars is set into the stern notch of pedicle screw by setting stick device after entering pedicle screw, hold-doun nut is tightened and screws again, this
When need using distraction reduction device the distraction reduction under perspective guidance, will vertebral height restore satisfied after tighten all hold-doun nuts
It sews up the incision again, when using the distraction reduction device, turns at the nut 311 of angle modulation screw 31, make the arc of 312 lower end of screw rod
V notch v 314 is in 33 connectivity part of circular groove 32 and round regulating tank, at this time the first engaging tooth 411 and spiral shell on connecting column 41
The second engaging tooth 315 separation on bar 312, connecting column 41 can be freely rotated in circular groove 32, and root is enabled to follow closely sleeve 6
Enough angles for preferably adapting to pedicle screw merging are covered in pedicle screw upper end, move positioning tooth bar 2 backward with hand, and it is fixed to make
The positioning tooth 21 of position rack gear 2 is separated with the engaging tooth 111 of 11 antetheca of slide opening, struts this again under the action of elastic reset item 13
Position device strut, by root nail 6 lower end edge mini-incision of sleeve insertion, root nail 6 lower end of sleeve the first arc notch 61 with can subtract
Interference when few incision skin is inserted into root nail sleeve 6, the lower end cap of root nail sleeve 6 turn angle behind pedicle screw upper end
Screw 31 is adjusted, the second engaging tooth 315 on screw rod 312 is intermeshed with the first engaging tooth 411 on connecting column 41, prevents
Connecting column 41 rotates, and after which is strutted vertebral height recovery satisfaction, unclamps positioning tooth bar 2, positioning tooth bar 2 exists
Position will be strutted with the intermeshing of the engaging tooth 111 of 11 antetheca of slide opening under the action of reset spring 112 to fix, fixation simply may be used
It leans on.The distraction reduction device is easily adjusted by the angle that angle modulation screw 31 can follow closely sleeve 6 to root, keeps it more preferable
Ground is suitble to be placed in the angle of intraspinal pedicle screw, carries out corpus vertebrae replacement convenient for dilator distraction pedicle screw, uses letter
It is single, it is easy to operate, convenient for promoting.
In the description of this specification, the description of reference term " one embodiment ", " example ", " specific example " etc. means
Particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained at least one of the utility model
In embodiment or example.In the present specification, schematic expression of the above terms be not necessarily referring to identical embodiment or
Example.Moreover, particular features, structures, materials, or characteristics described can be in any one or more embodiment or examples
In can be combined in any suitable manner.
The preferred embodiment in the utility model disclosed above is only intended to help to illustrate the utility model.Preferred embodiment is simultaneously
There is no the details that detailed descriptionthe is all, also not limiting the utility model is only the specific embodiment.Obviously, according to this theory
The content of bright book can make many modifications and variations.These embodiments are chosen and specifically described to this specification, is in order to preferably
The principles of the present invention and practical application are explained, so that skilled artisan be enable to better understand and utilize this
Utility model.The utility model is limited only by the claims and their full scope and equivalents.
Claims (3)
1. a kind of percutaneous cervical arc root follows closely replacement and fixation distraction reduction device, it is characterised in that: including first handle, second handle,
First pin shaft, the second pin shaft, reset spring, fixed block, angle modulation screw, connector, third pin shaft, struts positioning tooth bar
Bar and root nail sleeve, the first handle and second handle are hinged to X-shaped by the first pin shaft, and first handle rear end offers cunning
Hole, described positioning tooth bar one end is hinged by the second pin shaft and second handle rear end, and the other end passes through slide opening and fixes with limited block
Connection, the positioning tooth bar front end face are provided with positioning tooth, and slide opening front side hole wall is cambered surface, offer in cambered surface mutual with positioning tooth
The engaging tooth of engagement, the slide opening rear side hole wall is fixed with reset spring, after reset spring movable end is resisted against positioning tooth bar
On end face, the first handle front end and second handle front end are respectively and fixedly provided with fixed block, and the fixed block front end face offers circle
Connected in star, upper end of fixing block face offer the round regulating tank with the perforation of circular groove side, offer week in round regulating tank
To sliding slot, angle modulation screw is equipped in round regulating tank, the connector includes connecting column and is fixed on connecting column front end
Articulated section, the connection column outer wall are uniformly provided with the first engaging tooth along axial direction, and connecting column is plugged in circular groove, the hinge
Socket part with to strut rod rear end hinged by third pin shaft, strut bar front end and be vertically and fixedly provided with root nail sleeve, under described nail sleeve
The first arc notch is provided at end opening；
The angle modulation screw is made of nut and the screw rod being fixedly connected with nut, and the screw rod is plugged in round regulating tank
Interior, screw rod upper end is fixed with the circumferential projection being adapted to circumferential sliding slot, circumferentially uniformly opens up on the screw rod of circumferential projection lower end
Have and is provided with arc with intermeshing second engaging tooth of the first engaging tooth, the screw rod outer wall and connecting column sustained height position and lacks
Mouthful.
2. percutaneous cervical arc root according to claim 1 follows closely replacement and fixation distraction reduction device, it is characterised in that: described first
Elastic reset item is provided between handle and second handle, the elastic reset item there are two, and two elastic reset front ends are living
Dynamic hinged, rear end is separately fixed on the inside of first handle and on the inside of second handle.
3. percutaneous cervical arc root according to claim 1 follows closely replacement and fixation distraction reduction device, it is characterised in that: described first
Handle rear end and second handle rear end are provided with antiskid groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821614715.6U CN209122320U (en) | 2018-09-30 | 2018-09-30 | A kind of percutaneous cervical arc root nail replacement and fixation distraction reduction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821614715.6U CN209122320U (en) | 2018-09-30 | 2018-09-30 | A kind of percutaneous cervical arc root nail replacement and fixation distraction reduction device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209122320U true CN209122320U (en) | 2019-07-19 |
Family
ID=67231006
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821614715.6U Expired - Fee Related CN209122320U (en) | 2018-09-30 | 2018-09-30 | A kind of percutaneous cervical arc root nail replacement and fixation distraction reduction device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209122320U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113456125A (en) * | 2020-03-31 | 2021-10-01 | 胡建华 | Self-adaptive angle spreading forceps |
-
2018
- 2018-09-30 CN CN201821614715.6U patent/CN209122320U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113456125A (en) * | 2020-03-31 | 2021-10-01 | 胡建华 | Self-adaptive angle spreading forceps |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190719 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |