CN207679522U - A kind of upper cervical spine 3D printing navigation guide plate - Google Patents
A kind of upper cervical spine 3D printing navigation guide plate Download PDFInfo
- Publication number
- CN207679522U CN207679522U CN201720758175.8U CN201720758175U CN207679522U CN 207679522 U CN207679522 U CN 207679522U CN 201720758175 U CN201720758175 U CN 201720758175U CN 207679522 U CN207679522 U CN 207679522U
- Authority
- CN
- China
- Prior art keywords
- guide plate
- positioning plate
- cervical spine
- printing
- upper cervical
- 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.)
- Expired - Fee Related
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Abstract
Upper cervical spine 3D printing is navigated guide plate, it be made of mark post (1), positioning plate (2) and screw conduit (3), and mark post (1) is cylindrical, is placed in positioning plate (2) back side, left and right each one；Positioning plate (2) shape of atlas 3D printing navigation guide plate is the arc adapted to atlas bone photo, positioning plate (2) shape of dentata 3D printing navigation guide plate is the splayed adapted to dentata bone photo, and what positioning plate (2) was contacted with vertebra has the groove being adapted with vertebra shape on one side；Screw conduit (3) is hollow short pipe, is placed in and sets nail guide plate both ends, center is communicated with positioning plate (2).It is to be oriented to mark post, so that it may reduce and set nail error, improve upper cervical spine success rate of operation as long as fully stripping centrum rear soft tissue is bonded closely with ensureing guide plate with centrum rear structure using the upper cervical spine 3D printing navigation guide plate of the utility model.Surgical operation suitable for upper cervical spine.
Description
Technical field
The utility model is related to surgical instruments, it particularly relates to set nail navigation guide plate with screw synthetism.
Background technology
Upper cervical spine includes atlas and dentata, way of escape atlas and axis pedicle screw fixation operation technology because with long-time stability,
The advantages that high fusion rate, good aligning, being widely recognized as spinal surgeons is obtained, oneself becomes upper cervical spine and dislocates, no
" goldstandard " of steady operative treatment.Since atlas/dentata proximity structure is complicated, pedicle of vertebral arch is tiny, and aberration rate is higher, existing behaviour
It is big to the risk of blood vessel, neurotrosis to make method, greatly limits the application of the technology, therefore setting nail becomes decision hand
An important factor for art success or failure.Therefore, the accuracy for how improving atlas/axis arch root screw merging has highly important meaning
Justice.In recent years, as 3D printing technique is in the popularization of medical industry, pedicle of vertebral arch navigation template is also gradually answered in spinal operation
With.But there is also some defects, such as：Guide plate is tiny, and when surgical procedure is unfavorable for helping and fixed, easily occur guide plate shake and
Displacement causes to set nail deviation;Disinfection is easily deformed；Navigation template is fragile, is easily damaged during use.
Through retrieval, the application part for being related to being placed in upper cervical spine pedicle screw the relevant technologies there is no at present.
Invention content
The utility model is intended to provide a kind of upper cervical spine 3D printing navigation guide plate, to solve existing upper cervical spine pedicle screw
Internal fixation technology there are the problem of, improve screw merging accuracy, improve the success rate of operation.
The upper cervical spine 3D printing navigation guide plate that designer provides, is made of, mark post is circle mark post, positioning plate and screw conduit
Cylindricality being placed in positioning back, left and right each one, stablizing entire guide plate when for being placed in screw；Position plate shape be with it is upper
The positioning plate shape for arc or dentata the nail guide plate that cervical vertebra atlas bone photo adapts to is the splayed adapted to dentata bone photo, positioning plate
What is contacted with vertebra has the groove being adapted with vertebra shape on one side；Screw conduit is hollow short pipe, is placed in guide plate two
End, center is communicated with positioning plate.
Above-mentioned upper cervical spine 3D printing navigation guide plate is printed with 3D printer by 3D printing technique and reverse engineering software
It obtains, material is cohesible high molecular material.
Upper cervical spine 3D printing navigation guide plate specific manufacturing method be：First to the damaged part of patient with CT scan method into
Row imageological examination, scan image are preserved with Dicom formats；Dicom formatted files are imported into 3D rendering generation and Editorial Services again
It manages in software, generates the threedimensional model of targeted vertebral body；Best screw is designed according to corresponding centrum CT data in three dimensions to lead to
Road, then in outer Surface Creation reversed screw conduits accordingly；Mark post, positioning plate and spiral shell are completed in computer aided design software
After the design for following closely conduit, the file of design is imported into 3D printer, prints and sets nail guide plate；Finally after oxirane disinfection
It encapsulates spare.
Whether upper cervical spine 3D printing navigation guide plate shifts for observation guide plate when being placed in screw, judges to set nail direction and angle
Whether correct, stable guide plate.Specifically application process during surgery is：Preoperative elder generation performs the operation on the model that 3D printing comes out
Simulated operation, by navigating, channel pedicle pierces Kirschner wire, visually observes display Kirschner wire and is respectively positioned in pedicle of vertebral arch, does not wear
Go out the cortex of bone of pedicle of vertebral arch.In vitro test confirms the accuracy of improvement 3D printing navigation template.After confirming concept feasible, then will
Navigation template is sterilized spare by Low-temperature epoxy ethane.All patients keep atlas/dentata reset state using skull traction, lead
Draw 3~6kg of weight.Prone position, neck Posterior midline approach, atlas/dentata is taken to appear atlas and axis rear portion knot after entire patient's anesthesia
Structure；Fully after stripping vertebral plate, the muscle of spinous process surface attachment, ligament, the improvement 3D printing guide plate of disinfection is adhere well to phase
Answer whether the lateral mass, vertebral plate and spinous process of centrum, observation guide plate fit closely with it, assistant helps resting guide, and patient is with diameter
2.0mm electric drills are bored by guide plate screw conduit and break vertebral plate cortex of bone 10mm, and pedicle screw is drilled with hand drill by catheter channel
Channel is parallel to the direction of guide plate mark post in operation, pay attention to observing the direction of mark post and whether have movement.It is used after the completion of drilling
Probe detects whether screw way inner wall is complete, and the errorless rear tapping of confirmation simultaneously places pedicle screw.After the completion of setting nail, C-arm X-ray machine
After the perspective of side position, inspection sets the good adjustment heads in nail position and neck location to reach optimal reset state, is maintaining the state
The case where downlink nail stick fix, bone grafting.Last indwelling drainage tube, layer-by-layer suture notch.
The upper cervical spine 3D printing navigation guide plate of the utility model, in addition to having the advantages that traditional 3D printing guide plate is identical：It is accurate
True property and safety are higher etc., also have the advantage that：1. because mark post is longer, tail end amplitude of fluctuation is big when guide plate shakes, therefore
Conducive to observation, it can judge whether guide plate shakes and shift by the variation of mark post position in art, even if smaller shaking and displacement
Also it is easy observation, can reduce and set nail error, nail accuracy rate is set in raising；2. can be with mark post when in art by screw conduit drilling conduit
For object of reference, avoids electric drill not exclusively parallel with screw conduit and position caused by board bottom portion is cut and set nail error；3. guide plate is double
The increased mark post in side back portion is longer, may act as handrail effect, and assistant can hold offside mark post resting guide with hand steered in art, contribute to
Guide plate stability is controlled in art, is reduced and is shaken, shifts；4. the mark post moved in both sides struts, space is smaller, to the need of operative space
It asks few, reduces the drawing to tissue and stripping.Therefore, as long as fully stripping centrum rear soft tissue is to ensure guide plate and vertebra in art
The fitting of body rear structure is close, is to be oriented to mark post, so that it may which nail error is set in reduction, improves the success rate of atlas/dentata operation.It is suitable
Surgical operation for atlas/dentata.
Description of the drawings
Fig. 1 is atlas 3D printing navigation guide plate front view, and Fig. 2 is atlas 3D printing navigation guide plate upward view, and Fig. 3 is atlas
3D printing navigation guide plate right view, Fig. 4 are atlas 3D printing navigation guide plate use state diagram；Fig. 5 is that dentata 3D printing is led
Navigate guide plate front view, and Fig. 6 is dentata 3D printing navigation guide plate vertical view, and Fig. 7 is dentata 3D printing navigation guide plate right view, Fig. 8
For dentata 3D printing navigation guide plate use state diagram.
1 is mark post in figure, and 2 be positioning plate, and 3 be screw conduit, and 4 be bottom groove, and 5 be atlas bone, and 6 be dentata bone, and 7 are
Screw.
Specific implementation mode
The atlas 3D printing navigation guide plate of embodiment 1 picture 1-4, it is by 3 groups of mark post 1, positioning plate 2 and screw conduit
It is cylinder at, mark post 1, is placed in 2 back side of positioning plate, left and right each one, mark post long 40mm, diameter 3.5mm；2 shape of positioning plate
Shape is the arc adapted to atlas bone photo, and what positioning plate 2 was contacted with vertebra has the groove 4 being adapted with vertebra shape on one side；Spiral shell
Nail conduit 3 is hollow short pipe, and internal diameter is 2.1 mm, length 15mm, is placed in and sets nail guide plate both ends, center and positioning plate
2 communicate.
The dentata 3D printing navigation guide plate of embodiment 2 picture 1-4, it is by 3 groups of mark post 1, positioning plate 2 and screw conduit
It is cylinder at, mark post 1, is placed in 2 back side of positioning plate, left and right each one, mark post long 40mm, diameter 3.5mm；2 shape of positioning plate
Shape is the splayed adapted to dentata bone photo, and what positioning plate 2 was contacted with vertebra has the groove 4 being adapted with vertebra shape on one side；
Screw conduit 3 is hollow short pipe, and internal diameter is 2.1 mm, length 15mm, is placed in and sets nail guide plate both ends, center and positioning
Plate 2 communicates.
Embodiment 3 improves the design and making of 3D printing navigation template
Imageological examination：CT scan method：It is checked, is swept using Light Speed16 slices spiral CTs machine (GE companies, the U.S.)
It includes 2 segments of neck 1-2 vertebras to retouch range, and thickness 1.25 mm, screw pitch 5.0mm are 9.37 mm/s, voltage 120 into bed speed
KV, electric current are 200 mA.Scan image is preserved with Dicom formats.
Dicom formatted files are imported into 3D rendering generation and (the Materialise public affairs of editing and processing software Mimics 17.0
Department, Belgium), generate the threedimensional model of targeted vertebral body.In computer aided design software Creo2.0（PTC S. A., the U.S.）
In, screw is simulated using the cylinder of diameter 3.5mm, the direction Preliminary Simulation pedicle of vertebral arch to be parallel to pedicle of vertebral arch sets nail, in 3D
The cross-section position at interface, the position relationship of sagittal plain, Coronal observation screw way and pedicle of vertebral arch, and careful adjustment is carried out to screw way, really
It protects screw way and does not break through pedicle of vertebral arch cortex of bone.Using the cylinder central axes of 3.5 mm of diameter as axle center, doing internal diameter in lamina surface is
The pedicle screw conduit of 2.1 mm, length 15mm.After completing nail hole Position Design, difference excision guide plate and vertebra are asked by boolean
Body three-dimensional models interference portion forms guide plate positioning surface.Re-establish a diameter of 3.5mm's according to the axial line of preset nail hole
Cylinder mark post, mark post translate about 10mm with respect to nail hole inwardly, and mark post is about 40mm, consider guide plate mechanical strength and use material
Economy, guide plate average thickness are about 4~6mm.Guide plate file is imported into Forml+3D printers (Formlabs, the U.S.), is beaten
It prints off atlas pedicle of vertebral arch and sets nail guide plate.It is spare by oxirane disinfection post package.
Claims (3)
- The guide plate 1. upper cervical spine 3D printing is navigated, it is characterised in that it is made of mark post (1), positioning plate (2) and screw conduit (3), Mark post (1) is cylinder, is placed in positioning plate (2) back side, left and right each one；The positioning plate (2) of navigation guide plate for atlas Shape is the arc adapted to atlas bone photo, and positioning plate (2) shape of the navigation guide plate for dentata is to be adapted to dentata bone photo Splayed, the groove that positioning plate (2) was contacted with vertebra have on one side is adapted with vertebra shape；Screw conduit (3) is hollow Short pipe is placed in and sets nail guide plate both ends, and center is communicated with positioning plate (2).
- The guide plate 2. upper cervical spine 3D printing described in accordance with the claim 1 is navigated, it is characterised in that the navigation for atlas is led The thickness at plate positioning plate (2) both ends is identical.
- The guide plate 3. upper cervical spine 3D printing described in accordance with the claim 1 is navigated, it is characterised in that it be by 3D printing technique and Reverse engineering software is printed with 3D printer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720758175.8U CN207679522U (en) | 2017-06-27 | 2017-06-27 | A kind of upper cervical spine 3D printing navigation guide plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720758175.8U CN207679522U (en) | 2017-06-27 | 2017-06-27 | A kind of upper cervical spine 3D printing navigation guide plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207679522U true CN207679522U (en) | 2018-08-03 |
Family
ID=62986240
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720758175.8U Expired - Fee Related CN207679522U (en) | 2017-06-27 | 2017-06-27 | A kind of upper cervical spine 3D printing navigation guide plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207679522U (en) |
-
2017
- 2017-06-27 CN CN201720758175.8U patent/CN207679522U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20180803 Termination date: 20190627 |