CN208693411U - Integrated auxiliary fixing device for 2 odontoid fracture anterior approach of neck - Google Patents
Integrated auxiliary fixing device for 2 odontoid fracture anterior approach of neck Download PDFInfo
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- CN208693411U CN208693411U CN201721233113.1U CN201721233113U CN208693411U CN 208693411 U CN208693411 U CN 208693411U CN 201721233113 U CN201721233113 U CN 201721233113U CN 208693411 U CN208693411 U CN 208693411U
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- Prior art keywords
- neck
- guide rod
- fixing device
- auxiliary fixing
- centrum
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- 238000013459 approach Methods 0.000 title claims abstract description 20
- 238000000034 method Methods 0.000 claims abstract description 18
- 230000008569 process Effects 0.000 claims abstract description 12
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 16
- 238000010146 3D printing Methods 0.000 claims description 6
- 238000001356 surgical procedure Methods 0.000 abstract description 9
- 238000002513 implantation Methods 0.000 abstract description 3
- 230000010354 integration Effects 0.000 abstract description 3
- 206010017076 Fracture Diseases 0.000 description 29
- 208000010392 Bone Fractures Diseases 0.000 description 28
- 230000009977 dual effect Effects 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 208000005137 Joint instability Diseases 0.000 description 2
- 210000003484 anatomy Anatomy 0.000 description 2
- 210000002632 atlanto-axial joint Anatomy 0.000 description 2
- 210000000988 bone and bone Anatomy 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 208000032170 Congenital Abnormalities Diseases 0.000 description 1
- 206010023204 Joint dislocation Diseases 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 238000002224 dissection Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002594 fluoroscopy Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000035876 healing Effects 0.000 description 1
- 238000003709 image segmentation Methods 0.000 description 1
- 238000000338 in vitro Methods 0.000 description 1
- 230000000877 morphologic effect Effects 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 210000004417 patella Anatomy 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 210000004872 soft tissue Anatomy 0.000 description 1
- 208000020431 spinal cord injury Diseases 0.000 description 1
- 238000011477 surgical intervention Methods 0.000 description 1
- 230000001225 therapeutic effect Effects 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
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- Surgical Instruments (AREA)
Abstract
The utility model discloses a kind of integrated auxiliary fixing device for 2 odontoid fracture anterior approach of neck, including arcuate base, the arcuate base includes the arc raised face identical with part arcuate structure upper before 3 centrum of neck, and extend outwardly from arc raised face two sides, for arc raised face to be fixed on to two stationary planes of 3 centrum of neck, the lateral surface of arc raised face is installed with guiding device, the guiding device includes the hollow guiding bar for guiding Kirschner wire merging cdontoid process, and it is located at outside guide rod, external orientation channel for guiding screw to be placed in, guide channel and guide rod are coaxially disposed, and guide rod can move back and forth in guide channel.It is placed in screw to odontoid fracture position using the integration auxiliary fixing device, surgical procedure can be fast and accurately completed in art, save operating time, reduce ray exposure, and screw implantation site is accurate, realizes the target of accurate surgery.
Description
Technical field
The utility model relates to a kind of operation fixing devices, in particular to a kind of to be used for 2 odontoid fracture anterior approach of neck
Integrated auxiliary fixing device, belong to medical instruments field.
Background technique
Human body dentoid process of axis is the important feature for maintaining local stability, odontoid fracture as the bone axis of atlas and axis
It is clinically more typical fracture, can lead to Atlantoaxial joint instability, even dislocates, cause catastrophic effect.If correct not in time
Diagnosis and treatment occur that Atlantoaxial joint instability or dislocation can be caused when disunion or severe deformities healing, lead to secondary spinal cord injury.Tooth
The target of the prominent fractures of shape is reset and the stability reconstruction of odontoid fracture, i.e., recovery dentation lug structure is complete, is restored
Pivot action of the cdontoid process in pillow neck.
From dissection and functional perspective, preceding road Odontid screw fixes (anterior odontoid screw
Fixation) optimal therapeutic effect can be provided for odontoid fracture patient, because it is other than providing better stability,
Biggest advantage is that the rotation function of cervical vertebra can be retained.However, preceding road Odontid screw technique for fixing is to any ridge
It is still a challenging technology for column surgeon.The surgical technic difficulty is high, the surgical procedure requirement to patient
It is higher, and learning curve is longer, is only grasped by doctor few in number.
Utility model content
Purpose of utility model: the problems such as the utility model is high, failure rate is high for preceding road odontoid fracture operating difficulty mentions
For a kind of integrated auxiliary fixing device for 2 odontoid fracture anterior approach of neck, the safety and precise convenient for screw in art is set
Enter, to greatly simplify surgical procedure, shortens procedure, reduce surgical intervention risk, realize the target of accurate surgery.
Technical solution: dress is auxiliarily fixed in the integration described in the utility model for 2 odontoid fracture anterior approach of neck
Set, including arcuate base, the arcuate base include the arc raised face identical with part arcuate structure upper before 3 centrum of neck and from
Arc raised face two sides extend outwardly, two stationary planes for arc raised face to be fixed on to 3 centrum of neck, the arc raised face
Lateral surface be installed with guiding device, the guiding device include for guide Kirschner wire merging cdontoid process hollow guiding bar, with
And outside guide rod, for guide screw be placed in external orientation channel, external orientation channel and guide rod coaxial arrangement,
And guide rod can move back and forth in external guide channel.
In art, first arcuate base and 3 centrum of neck are fixed, guides Kirschner wire to be placed in cdontoid process by guide rod, works as kirschner
Needle after merging, pulls out guide rod safely, hollow screw is placed in along Kirschner wire, by Kirschner wire and the external orientation channel dual boot
The merging of hollow screw；After screw fixation, pedestal is removed, completes odontoid fracture anterior approach.
Wherein, the internal diameter of guide rod and the diameter of Kirschner wire are equal, and outer diameter is equal with the internal diameter in external orientation channel.
Preferably, there are angles between 3 centrum of central axis and neck of external orientation channel and guide rod, when arcuate base and neck
When 3 centrums are fixed, which makes the axis of central axis vertical with 2 odontoid fracture line of neck.It is accurate convenient for Kirschner wire and screw
It is placed in fracture.
For the fixation convenient for arcuate base and 3 centrum of neck, one or more fixation holes can be set on above-mentioned two stationary plane,
So as to which pedestal is firmly secured to 3 centrum of neck by being inserted into fixed pin in fixation hole.
In above-mentioned guiding device, guiding device can be made by way of by external orientation channel and arcuate base integrally connected
It is fixed with pedestal.
Preferably, arcuate base, external orientation channel and guide rod are made up of 3D printing, easy to make, and can be accurate
The dimensional parameters for controlling each component make accurate reset of fracturing.
The utility model has the advantages that compared with the prior art, the advantages of the utility model are: (1) utilizes being used for for the utility model
The integrated auxiliary fixing device of 2 odontoid fracture anterior approach of neck is placed in screw to odontoid fracture position, can be fast in art
Speed accurately completes surgical procedure, has saved operating time, reduces ray exposure, and screw implantation site is accurate, realizes
The target of accurate surgery makes young doctor also can quickly grasp skill moreover, the device also shortens surgical learning curve
Art implements highly difficult operation；(2) the integrated auxiliary fixing device of the utility model first passes through guide rod merging Kirschner wire, so
After remove guide rod, by the merging of Kirschner wire and external orientation channel dual boot screw, screw can be prevented to be screwed into hour offset,
Further ensure that the accuracy of operation；(3) the integrated auxiliary fixing device of the utility model can be based on the cervical vertebra three-dimensional of patient
Digital model is made by 3D printing, it is preoperative can in-vitro simulated operative process, and accurately formulate Surgical treatment, be
The precision of surgical operation provides thinking.
Detailed description of the invention
Fig. 1 is the solid of the integrated auxiliary fixing device for 2 odontoid fracture anterior approach of neck of the utility model
Figure；
Fig. 2 is the vertical view of the integrated auxiliary fixing device for 2 odontoid fracture anterior approach of neck of the utility model
Structural schematic diagram；
Fig. 3 is the use of the integrated auxiliary fixing device for 2 odontoid fracture anterior approach of neck of the utility model
State diagram.
Specific embodiment
The technical solution of the utility model is described further with reference to the accompanying drawing.
Such as Fig. 1~2, the integrated auxiliary fixing device for 2 odontoid fracture anterior approach of neck of the utility model, packet
Bracket pedestal 1 and guiding device, wherein arcuate base 1 includes arc raised face, the radian and structure height of arc raised face
It coincide with part arcuate structure upper before 3 centrum of neck, arc raised face two sides are outward extended with two stationary planes, are used for arc raised face
It is fixed on 3 centrum of neck, it e.g., can be solid by being inserted into fixation hole 2 by the way that one or more fixation holes 2 are arranged on two stationary planes
Determine needle and pedestal is firmly secured to 3 centrum of neck.
Guiding device includes the inside and outside hollow guiding bar 4 being coaxially disposed and external orientation channel 3, and guide rod 4 is for guiding
Kirschner wire is placed in cdontoid process, and external orientation channel 3 is for guiding screw to be placed in.Wherein, guide rod 4 can be in external guide channel 3
Inside move back and forth, the depth of control Kirschner wire merging, it, can be by guide rod 4 from external orientation channel 3 after Kirschner wire is placed in safely
Interior taking-up is placed in hollow screw along Kirschner wire, by the merging of Kirschner wire and the 3 dual boot hollow screw of external orientation channel.
Guiding device is fixedly connected with pedestal 1, such as can be by the outside of arc raised face in external orientation channel 3 and pedestal 1
Face integrally connected.For convenience of understanding, in the utility model, lateral surface refers to the not side surface with cervical vertebrae contact, and opposite is interior
Side is the side surface with cervical vertebrae contact.
There are angles between 3 centrum of central axis and neck of external orientation channel 3 and guide rod 4, when arcuate base and 3 centrum of neck
When fixed, which may make that the axis of central axis is vertical with 2 odontoid fracture line of neck.It is accurately placed in convenient for Kirschner wire and screw
Fracture.
Above-mentioned arcuate base 1, external orientation channel 3 and guide rod 4 can be made up of 3D printing, easy to make, and can
The dimensional parameters for accurately controlling each component make accurate reset of fracturing.
Such as Fig. 3, when operation, the integration for being used for 2 odontoid fracture anterior approach of neck of the utility model is assisted first
The arcuate base 1 of fixed device 10 is placed in, and pedestal 1 is firmly secured to 3 centrum of neck using two pieces of fixed pins by self-retaining hole 2；So
Guide rod 4 is inserted on pedestal 1 afterwards, it is accurate that Kirschner wire is guided to be incorporated into cdontoid process according to the preoperative parameter being calculated, and adopt
Reduction of the fracture situation is confirmed with fluoroscopy during operation；After resetting satisfaction, guide rod 4 is removed, is placed in cannulated screw along Kirschner wire,
By the merging of the Kirschner wire 3 dual boot screw of external orientation channel.Perspective confirmation reduction of the fracture satisfaction, fixation again
Afterwards, pedestal 1 is removed, surgical operation is completed.
Embodiment
Be made by way of 3D printing in the present embodiment the utility model for 2 odontoid fracture anterior approach of neck
Integrated auxiliary fixing device.
Firstly, (scanning and obtaining) building three dimension of neck 1-3 centrum by CT/MRI based on patients with cervical anatomical structure information
Word model.Patients with cervical CT/MRI tomoscan image is obtained, saves in dicom format, scan image is imported into software
Mimics 17.0 has the feature of different gray values according to bone from soft tissue, carries out image segmentation, repairing, calculates and obtain kneecap
Three-dimensional digitalization model, with the storage of STL format.Image data (CT/MRI) based on patients with cervical anatomical structure, accurate structure
Build three-dimensional stereo model；
Secondly, for the 2 centrum odontoid fracture threedimensional model of neck established, according to fracture fixation principle, in conjunction with clinical hand
Art actual needs, construct with the pedestal that part morphosis is identical before 3 centrum of neck, and create the hole of fixed pedestal in art
Structure.Detailed process are as follows: to the 3d c spine anatomical model row morphological analysis of building, select upper part arc knot before 3 centrum of neck
Structure is benchmark face, according to reverse principle, generates the datum level that morphosis is identical, and carry out hypostazation operation, sets simultaneously
The fixation hole that two diameters are 1mm is counted, convenient for pedestal is firmly secured to 3 centrum of neck in art.
Then, the guide rod of Parametric designing guidance Kirschner wire merging, it is ensured that can be placed in like clockwork when operation gram
Family name's needle.Detailed process are as follows: external threedimensional model carries out visualized operation, is required according to surgical procedure and fracture fixation principle, with
Proper angle and direction setting are placed in the position of virtual Kirschner wire, and designing outer diameter is 3.5mm, and internal diameter is that the hollow of 1.2mm is led
To bar, the sagittal plane angulation of guide rod is set in this as 35 degree, coronal-plane angulation is 0 degree, and Kirschner wire in art is calculated and sets
Entering depth is 36mm.
Again, external orientation channel is constructed, for guiding screw to be accurately implanted into art.Detailed process are as follows: Parametric designing
The external orientation channel that is accurately implanted into of guidance hollow lag screw, is first depending on coaxial principle, setting circular cone sample guide channel with
Above-mentioned guide rod has common central axis, and carries out Parametric designing.Determine that external orientation channel internal diameter is in the example
3.5mm, head side outer diameter are 4.0mm, and caudal outer diameter is 4.5mm, when operation, after guiding Kirschner wire to be placed in safely, pull out kirschner
Needle guide rod prevents screw to be screwed into hour offset, really by the implantation of Kirschner wire and the external orientation channel dual boot hollow screw
Protect the accuracy of operation.
Preferably, pedestal, outside and internal guide are integrated, optimization design, is prepared using rapid shaping technique
The auxiliary device.
The matching of pedestal, guide rod is verified, navigation template design is completed, with the output of STL format, such as Fig. 1.Benefit
Established navigation template, such as Fig. 2 are printed with 3D printing technique.
It prints the model and navigation template established by raw material using Nylon using SLS method, carries out osteotomy verifying, such as
Fig. 3.Verification result show integrated auxiliary fixing device obtained can quickly, conveniently, accurately to 2 odontoid fracture of neck
It disposes into screw.
Claims (6)
1. a kind of integrated auxiliary fixing device for 2 odontoid fracture anterior approach of neck, which is characterized in that including arc base
Seat, the arcuate base include the arc raised face identical with part arcuate structure upper before 3 centrum of neck and from arc raised face two sides
Extend outwardly, two stationary planes for arc raised face to be fixed on to 3 centrum of neck, the lateral surface of the arc raised face is installed with
Guiding device, the guiding device include for guiding Kirschner wire to be placed in the hollow guiding bar of cdontoid process and be located at outside guide rod
Portion, the external orientation channel for guiding screw to be placed in, external orientation channel and guide rod are coaxially disposed and guide rod can be outside
Move back and forth in portion's guide channel.
2. the integrated auxiliary fixing device according to claim 1 for 2 odontoid fracture anterior approach of neck, feature
It is, the internal diameter of the guide rod and the diameter of Kirschner wire are equal, and outer diameter is equal with the internal diameter in external orientation channel.
3. the integrated auxiliary fixing device according to claim 1 for 2 odontoid fracture anterior approach of neck, feature
It is, there are angles between 3 centrum of central axis and neck of the external orientation channel and guide rod, when arcuate base and 3 centrum of neck
When fixed, which makes the axis of central axis vertical with 2 odontoid fracture line of neck.
4. the integrated auxiliary fixing device according to claim 1 for 2 odontoid fracture anterior approach of neck, feature
It is, the fixation hole that pedestal is fixed on to 3 centrum of neck is respectively provided on two stationary plane.
5. the integrated auxiliary fixing device according to claim 1 for 2 odontoid fracture anterior approach of neck, feature
It is, the external orientation channel and arcuate base integrally connected.
6. the integrated auxiliary fixing device according to claim 1 for 2 odontoid fracture anterior approach of neck, feature
It is, the arcuate base, external orientation channel and guide rod are made up of 3D printing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721233113.1U CN208693411U (en) | 2017-09-25 | 2017-09-25 | Integrated auxiliary fixing device for 2 odontoid fracture anterior approach of neck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721233113.1U CN208693411U (en) | 2017-09-25 | 2017-09-25 | Integrated auxiliary fixing device for 2 odontoid fracture anterior approach of neck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208693411U true CN208693411U (en) | 2019-04-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721233113.1U Expired - Fee Related CN208693411U (en) | 2017-09-25 | 2017-09-25 | Integrated auxiliary fixing device for 2 odontoid fracture anterior approach of neck |
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| Country | Link |
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| CN (1) | CN208693411U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114176676A (en) * | 2021-12-23 | 2022-03-15 | 湖南旺旺医院有限公司 | Positioning device applied to anterior cervical dentate process fracture operation |
-
2017
- 2017-09-25 CN CN201721233113.1U patent/CN208693411U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114176676A (en) * | 2021-12-23 | 2022-03-15 | 湖南旺旺医院有限公司 | Positioning device applied to anterior cervical dentate process fracture operation |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| 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: 20190405 |