CN106618810A - Manufacturing method of atlas and axis titanium alloy prosthesis - Google Patents

Manufacturing method of atlas and axis titanium alloy prosthesis Download PDF

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Publication number
CN106618810A
CN106618810A CN201710006858.2A CN201710006858A CN106618810A CN 106618810 A CN106618810 A CN 106618810A CN 201710006858 A CN201710006858 A CN 201710006858A CN 106618810 A CN106618810 A CN 106618810A
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CN
China
Prior art keywords
prosthese
atlas
data
dentata
design
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.)
Pending
Application number
CN201710006858.2A
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Chinese (zh)
Inventor
杨永强
张自勉
王艺锰
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South China University of Technology SCUT
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South China University of Technology SCUT
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Publication date
Application filed by South China University of Technology SCUT filed Critical South China University of Technology SCUT
Priority to CN201710006858.2A priority Critical patent/CN106618810A/en
Publication of CN106618810A publication Critical patent/CN106618810A/en
Pending legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/44—Joints for the spine, e.g. vertebrae, spinal discs
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/30767—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
    • A61F2002/3093—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth for promoting ingrowth of bone tissue
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/3094—Designing or manufacturing processes
    • A61F2/30942—Designing or manufacturing processes for designing or making customized prostheses, e.g. using templates, CT or NMR scans, finite-element analysis or CAD-CAM techniques
    • A61F2002/30948—Designing or manufacturing processes for designing or making customized prostheses, e.g. using templates, CT or NMR scans, finite-element analysis or CAD-CAM techniques using computerized tomography, i.e. CT scans
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/3094—Designing or manufacturing processes
    • A61F2002/30985—Designing or manufacturing processes using three dimensional printing [3DP]

Abstract

The invention discloses a manufacturing method of an atlas and axis titanium alloy prosthesis. The method comprises the steps of uploading CT tomography data of DICOM format of the spine medical image into the MINICS software, establishing three dimensional model data of spine to be reconstructed, implementing noise reduction by using the Geomagic software, exporting a 3D data file of step format, importing the file into the SolidWorks software, selecting the right design surfaces in the third section of the spine and the skull, establishing a prosthesis prototype between the two design surfaces, making sure the prosthesis and two design surfaces are completely fit. In order to reduce the modulus of elasticity of the prosthesis, and achieve the light weight design, the inside of the prosthesis is filled with porous grids by using SolidWorks. The porous structure on the prosthesis surface is also designed.

Description

A kind of atlas and dentata titanium prosthesis manufacture method
Technical field
The present invention relates to artificial prosthesis part preparation technology, more particularly to a kind of atlas and dentata titanium prosthesis manufacturer Method.
Background technology
At present the prosthese or supporter of artificial spinal prosthesis part Reconstruction mainly includes Invasive lumbar fusion device, titanium net and people Work bone etc..These materials respectively have in use pluses and minuses, wherein, titanium alloy Invasive lumbar fusion device and titanium net have good life Thing compatibility and enough intensity, are the one kind being most widely used at present.However, because titanium alloy elastic modelling quantity and human body from So flexible bone modulus difference is larger, easily causes stress shielding.
Selective laser smelting technology is one kind of metal increases material manufacturing technology, and it is quick, accurate, plastic any that it has The characteristics of complex parts, promotes the technology in recent years in the development of field of medical applications.Using selective laser smelting technology, can Obtain being fitted with original bone tissue curved surface the artificial prosthesis for matching by medical image processing technology and reverse Engineering Technology, more Importantly, the titanium alloy of selective laser smelting technology plastic internal porous the characteristics of being molded arbitrarily complicated Shape Parts Not only elastic modelling quantity can work as with human body natural's bone photo for prosthese, the so prosthese of shaping, and loose structure is beneficial to bone and its cells Growth.
The content of the invention
It is an object of the invention to overcome the shortcoming and defect of above-mentioned prior art, there is provided plant atlas and dentata titanium alloy is false Manufacturing method.
The present invention is achieved through the following technical solutions：
A kind of atlas and dentata titanium prosthesis manufacture method, including atlas, dentata personalization prosthetic designs step and its 3D printer printing step；
Step one：Atlas, dentata personalization prosthetic designs step
S11：The CT tomographic datas for needing the vertebra medical image in DICOM format of reconstruct are imported into MINICS softwares In, foundation need to repair the three-dimensional modeling data of vertebra；
S12：MINICS data are imported in Geomagic softwares, finishing noise reduction is carried out, STEP form three-dimensional datas are derived File；
S13：STEP formatted data files are imported in Three-dimensional Design Software SolidWorks software, respectively in Section of three ridge Suitable design face is chosen at vertebra prosthese and skull prosthese, and prosthese blank is set up between two design faces, prosthese is set with two Meter is fitted completely between face；
S14：In order to reduce the elastic modelling quantity of prosthese, light-weight design is realized, will be used inside prosthese in SolidWorks Porous web trellis is filled, and in prosthetic surface loose structure is also designed；
Step 2：Personalized prosthese 3D printer printing step
S21：The prosthese model data of design is imported and is processed in Materialise Magics softwares, obtain model Slice of data；
S22：The slice of data for obtaining is imported in RPPath path planning softwares, the sweep span during shaping is set Deng obtaining final forming data；
S23：In importing data to selective laser melt-forming equipment, protective gas is passed through, inserts titanium alloy powder, arranged Molding technique parameter, carries out prosthese straight forming；
S24：Implement subsequent treatment to the prosthese part of forming, including polishing, sandblasting, polishing etc. are processed, formation is finally Prosthese.
In step s 11, using MINICS softwares, its version is 10.01, according to the spy of soft tissue gray scale different with bone Point, is reduced from medical image, sets up threedimensional model.
In step S14, many bore dias of the porous network structure of replacement prosthesis internal build should in more than 0.3mm, Below 1.5mm.Aperture in the range of being somebody's turn to do not only can guarantee that formed precision but also can promote growth of the cell in prosthese.
In the step s 21, cut into slices using Materialise Magics softwares, the slice thickness adopted during section for 0.025 to 0.04mm.
In step S22, the sweep span of shaping is set to 0.07mm to 0.09mm.
In step S23, the shielding gas that selective laser melt-forming equipment is passed through is nitrogen or argon gas, and the technique of shaping is joined Number is respectively：Laser power is 100W to 200W, and sweep speed is 200mm/s to 800mm/s, and titanium alloy powder is Ti6Al4V Spherical powder.
The prosthese model data of design is imported described in step S21 is processed in Materialise Magics softwares, Including operations such as positioning, disposing way, addition support, sections, model slice data are obtained.
The present invention has the following advantages and effect relative to prior art：
The model curved surface of skull and vertebra is directly chosen by CT data, therefore Anawgy accuracy is related to CT data precisions, greatly Laminating degree is improve greatly；
The prosthese energy straight forming perforated grill structure of selective laser smelting technology shaping, beneficial to the springform for reducing prosthese Amount, reduces the possibility that stress shielding phenomenon occurs.
Description of the drawings
Fig. 1 is atlas of the present invention and dentata titanium prosthesis manufacturing process flow diagram；
Fig. 2 is skull model and Section of three spine model schematic diagram；
Fig. 3 is to choose design face schematic diagram one；
Fig. 4 is to choose design face schematic diagram two；
Fig. 5 is the prosthese blank of Preliminary design；
Fig. 6 is to add the prosthese front view after loose structure；
Fig. 7 is to add the prosthese top view after loose structure；
Fig. 8 is to add the prosthese side view after loose structure；
Fig. 9 is the schematic diagram that prosthese is used for vertebra reconstruct.
Specific embodiment
Below in conjunction with the accompanying drawings 1 to 9 and specific embodiment, the present invention is more specifically described in detail.
Atlas of the present invention and dentata titanium prosthesis manufacturing process, are the vertebra medical images that patient is needed reconstruct The CT tomographic datas of DICOM format are imported in MINICS softwares, and foundation need to repair the three-dimensional modeling data of vertebra, and data exist In Geomagic softwares, finishing noise reduction is carried out, derive STEP form three-dimensional data files, in importing SolidWorks softwares, point Suitable design face is not chosen at Section of three spine model and skull model, and prosthese blank is set up between two design faces, Ensure to be fitted completely between prosthese and two design faces, in order to reduce the elastic modelling quantity of prosthese, realize light-weight design, To be filled with porous web trellis inside prosthese in SolidWorks, in prosthetic surface loose structure is also designed, be easy to bone group Knit the growth of cell.
Concrete technology step can be achieved through the following technical solutions：
1st, according to the CT tomographic datas of patient the three-dimensional modeling data of vertebra is entered in the softwares of MINICS 10.01 Line reconstruction, foundation needs to carry out the three-dimensional modeling data of vertebra reparation；
2nd, MINICS data are imported in Geomagic softwares, carries out finishing noise reduction, derive STEP forms three-dimensional data text Part；
3rd, STEP formatted datas are imported in SolidWorks softwares, sees accompanying drawing 2.Need to set up Section three of skull and model Supporting prostheses model between spine model, therefore suitable design face is selected at Section of three spine model and skull model, such as Shown in accompanying drawing 3, Fig. 4.
4th, replacement prosthesis model is built between design face, prosthese model blank is formed, and selects suitably to put nail position Punched, seen accompanying drawing 5；
5th, loose structure light-weight design is carried out to prosthese model, prosthese model shell and inside are all light-weighted porous Structure, is shown in accompanying drawing 6/7/8.Can realize perfectly fitting between prosthese model and skull model and Section of three spine model, rise To the purpose of spinal stabilization reconstruct, accompanying drawing 9 is seen.
6th, the prosthese model data of design is imported in Materialise Magics softwares, prosthese model is supported and is added Plus and section design, the thickness of section is 0.025mm to 0.04mm.In this embodiment, thickness is preferably 0.035mm；
7th, slice of data file is imported in RPPath softwares, scanning pattern and sweep span is set, sweep span is 0.07mm to 0.09mm, in this embodiment sweep span be set to 0.08mm；
8th, after obtaining this scanning path data, in being conducted into selective laser melting unit, suitable processing technology is set Parameter：Laser power is 100W to 200W, and sweep speed is 200mm/s to 800mm/s.In this embodiment, preferred laser Power is 140W, and sweep speed is preferably 600mm/s, and the material for adopting is Ti6Al4V spherical powders；
9th, post processing is implemented to the prosthese part of forming, including the process such as polishing, sandblasting, polishing, the final vacation of formation Body.
As described above, just can preferably realize the present invention.
Embodiments of the present invention are simultaneously not restricted to the described embodiments, other any Spirit Essences without departing from the present invention With the change, modification, replacement made under principle, combine, simplify, should be equivalent substitute mode, be included in the present invention Within protection domain.

Claims (7)

1. a kind of atlas and dentata titanium prosthesis manufacture method, it is characterised in that include：Atlas, dentata personalization prosthetic designs Step and its 3D printer printing step；
Step one：Atlas, dentata personalization prosthetic designs step
S11：The CT tomographic datas of vertebra medical image in DICOM format are imported in MINICS softwares, spinal prosthesis are set up Three-dimensional modeling data；
S12：MINICS data are imported in Geomagic softwares, finishing noise reduction is carried out, STEP form three-dimensional data files are derived；
S13：STEP formatted data files are imported in Three-dimensional Design Software SolidWorks software, it is false in Section of three vertebra respectively Suitable design face is chosen at body and skull prosthese, and prosthese blank is set up between two design faces, make prosthese and two design faces Between fit completely；
S14：In order to reduce the elastic modelling quantity of prosthese, light-weight design is realized, porous will be used inside prosthese in SolidWorks It is latticed to be filled, also design loose structure in prosthetic surface.
Step 2：Personalized prosthese 3D printer printing step
S21：The prosthese model data of design is imported and is processed in Materialise Magics softwares, obtain model slice Data；
S22：The slice of data for obtaining is imported in RPPath path planning softwares, sweep span during setting shaping etc., Obtain final forming data；
S23：In importing data to selective laser melt-forming equipment, protective gas is passed through, inserts titanium alloy powder, shaping is set Technological parameter, carries out prosthese straight forming；
S24：Implement subsequent treatment to the prosthese part of forming, including the process such as polishing, sandblasting, polishing, the final vacation of formation Body.
2. atlas and dentata titanium prosthesis manufacture method according to claim 1, it is characterised in that：In step s 11, make MINICS softwares are used, its version is 10.01, the characteristics of gray scale different with bone according to soft tissue, are reduced from medical image, Set up threedimensional model.
3. atlas and dentata titanium prosthesis manufacture method according to claim 1, it is characterised in that：In step S14, put The many bore dias for changing the porous network structure of prosthese internal build should be in more than 0.3mm, below 1.5mm.
4. atlas and dentata titanium prosthesis manufacture method according to claim 1, it is characterised in that in the step s 21, make Cut into slices with Materialise Magics softwares, the slice thickness adopted during section is for 0.025 to 0.04mm.
5. atlas and dentata titanium prosthesis manufacture method according to claim 1, it is characterised in that in step S22, into The sweep span of type is set to 0.07mm to 0.09mm.
6. atlas and dentata titanium prosthesis manufacture method according to claim 1, it is characterised in that in step S23, swash The shielding gas that light selective melting former is passed through is nitrogen or argon gas, and the technological parameter of shaping is respectively：Laser power is 100W to 200W, sweep speed is 200mm/s to 800mm/s, and titanium alloy powder is Ti6Al4V spherical powders.
7. atlas and dentata titanium prosthesis manufacture method according to claim 1, it is characterised in that will described in step S21 The prosthese model data of design is imported and processed in Materialise Magics softwares, including positioning, disposing way, addition The operations such as support, section, obtain model slice data.
CN201710006858.2A 2017-01-05 2017-01-05 Manufacturing method of atlas and axis titanium alloy prosthesis Pending CN106618810A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108158699A (en) * 2018-02-08 2018-06-15 中国人民解放军第二军医大学第二附属医院 Upper cervical spine bearing-type rebuilds prosthese
CN112690932A (en) * 2020-12-25 2021-04-23 北京爱康宜诚医疗器材有限公司 Processing method of vertebral prosthesis
CN113155948A (en) * 2021-04-19 2021-07-23 北京工业大学 Curved surface detection micro-magnetic sensor based on conformal sliding shoes

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103328016A (en) * 2011-01-04 2013-09-25 利润泰克株式会社 Implant for in-vivo insertion which is formed with a porous coating layer thereon
CN103584932A (en) * 2013-10-23 2014-02-19 华南理工大学 Designing method and manufacturing method of knee joint femoral prosthesis used for total knee arthroplasty
CN103919631A (en) * 2014-04-28 2014-07-16 四川大学 Manufacturing method for jaw defect individual restoration
CN105748177A (en) * 2016-04-20 2016-07-13 华南理工大学 Personalized spine implantation prosthesis with bionic micropores and manufacturing method thereof

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103328016A (en) * 2011-01-04 2013-09-25 利润泰克株式会社 Implant for in-vivo insertion which is formed with a porous coating layer thereon
CN103584932A (en) * 2013-10-23 2014-02-19 华南理工大学 Designing method and manufacturing method of knee joint femoral prosthesis used for total knee arthroplasty
CN103919631A (en) * 2014-04-28 2014-07-16 四川大学 Manufacturing method for jaw defect individual restoration
CN105748177A (en) * 2016-04-20 2016-07-13 华南理工大学 Personalized spine implantation prosthesis with bionic micropores and manufacturing method thereof

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108158699A (en) * 2018-02-08 2018-06-15 中国人民解放军第二军医大学第二附属医院 Upper cervical spine bearing-type rebuilds prosthese
CN112690932A (en) * 2020-12-25 2021-04-23 北京爱康宜诚医疗器材有限公司 Processing method of vertebral prosthesis
CN112690932B (en) * 2020-12-25 2023-07-28 北京爱康宜诚医疗器材有限公司 Method for processing vertebral prosthesis
CN113155948A (en) * 2021-04-19 2021-07-23 北京工业大学 Curved surface detection micro-magnetic sensor based on conformal sliding shoes

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Application publication date: 20170510