CN101229084A - Individual titanium alloy cranio-maxillofacial restorator and method for preparing numerical control ultra thin type thereof - Google Patents
Individual titanium alloy cranio-maxillofacial restorator and method for preparing numerical control ultra thin type thereof Download PDFInfo
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- CN101229084A CN101229084A CNA2008100578872A CN200810057887A CN101229084A CN 101229084 A CN101229084 A CN 101229084A CN A2008100578872 A CNA2008100578872 A CN A2008100578872A CN 200810057887 A CN200810057887 A CN 200810057887A CN 101229084 A CN101229084 A CN 101229084A
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Abstract
The invention provides a numerical control ultra thin type preparing method for a personalized titanium alley cranio-maxillofacial skeleton restoration which is characterized in that: the invention adopts CT section scanning to acquire the cranio-maxillofacial skeleton image data of a patient, carries out 3D rebuilding by utilizing a computer according to the cranio-maxillofacial skeleton image data, cuts a block shape titanium alley and processes into a shape by utilizing a numerical control milling machine to acquire the ultra thin type personalized titanium alley cranio-maxillofacial skeleton restoration. The method can acquire the ultra thin type personalized titanium alley cranio-maxillofacial skeleton restoration that can be directly used conveniently and fast.
Description
Technical field
The present invention relates to be used for substitute the technology of preparing of the artificial prosthesis of the damaged skeleton of cranium jaw face, particularly a kind of individual titanium alloy cranio-maxillofacial restorator and method for preparing numerical control ultra thin type thereof thereof, this method adopts advanced manufacturing technology to carry out the processing of personalized cranio-maxillofacial restorator, and described individual titanium alloy cranio-maxillofacial restorator is mainly used in the cranio-maxillofacial wound in fields such as neurosurgery, plastic surgery, Oral and Maxillofacial Surgery or the bone defect repair after the pathological changes excision.
Background technology
Medical science inner matter replacement operation is one of common surgical operation, and the difficult problem that clinical prosthetic replacement operation faces is exactly: can't know the best geometric shape of inner matter before intervening undergoing surgery, and that the damaged particularity of cranio-maxillofacial is the requirement of postoperative form is more outstanding than other positions.Traditional patching material comprises lucite, fire extinguishing allograph bone, bone cement, silica gel prosthese.But some above-mentioned material need spend the moulding and insufficient strength of long time and be substituted by new material gradually on operating-table.Titanium net in recent years.Characteristics such as porous polyethylene is because its excellent biological compatibility, and is easily moulding become clinical new lover.But in the face of the higher form of complexity, its moulding difficulty often can not well solve.And position (as the mandibular defect reparation) damaged at larger area or that mechanics is had relatively high expectations, easily moulding material has a difficult problem that often faces insufficient strength.
Aspect materials processing, the many employings of traditional operation are clinical manually moulding.For damaged form irregular, the anatomical structure complexity, the case that damaged area is huge, moulding and the splicing work of repairing body becomes a difficult problem that makes surgeon's headache, they often need to spend long time the different limited operating theater instruments of material use of specification that can buy on the market are bent into different curvatures, as picture mosaic fritter is stitched together again, not only prolonged operating time greatly, increase operation risk, and this " manually " repairing body form of making often can not allow patient satisfaction.What in recent years, the advanced manufacturing technology of utilization industrial circle was carried out dummy pre-formedly becomes new research field.Main several processing methods and characteristics thereof have at present:
Mould Machining: on Digit Control Machine Tool, process diel, suppress titanium plate or titanium net then and be shaped.This method can satisfy better form needs than manual moulding, but this method generally is used for the production of extensive standard component, is used for personalized production because mould only uses once, causes waste.On the other hand, because the stress problem that punching press causes also can cause the hidden danger of quality of fit.
Hot investment casting: utilize rapid forming equipment to process the wax-pattern of dummy, adopt titanium alloy material to turn over mould machine-shaping with the hot investment casting process technology.This precision of method height, form stable, intensity height after the molding.But because the dummy coefficient of elasticity that casts out is higher, plasticity is relatively poor relatively, so the stickiness at dummy and the damaged edge of patient neither be very perfect.
Digital control processing: utilize CNC milling machine that block titanium material is carried out the machining molding.This precision of method height, and to add man-hour used bulk be form through forging, coefficient of elasticity is lower with respect to founding materials, and certain plasticity is arranged, so dummy and the damaged edge of patient also can fit relatively more perfect.
Summary of the invention
The present invention is directed to the defective or the deficiency that exist in the prior art, a kind of individual titanium alloy cranio-maxillofacial restorator and method for preparing numerical control ultra thin type thereof thereof are provided, adopt this method, can obtain the ultrathin individual titanium alloy cranio-maxillofacial restorator that can directly use quickly and easily.
Technical conceive of the present invention is, utilizes CT technology, computer image technology and CNC milling machine machining forming technique, obtains ultrathin individual titanium alloy cranio-maxillofacial restorator.
Technical scheme of the present invention is as follows:
The method for preparing numerical control ultra thin type thereof of individual titanium alloy cranio-maxillofacial restorator is characterized in that: adopt the CT tomoscan to obtain patient's cranio-maxillofacial view data; According to the cranio-maxillofacial view data, utilize computer to carry out three-dimensional reconstruction; Utilize computer-aided design to obtain the computer picture data of dummy; According to the computer picture data, utilize CNC milling machine to the molding of block titanium alloy machining, obtain ultrathin individual titanium alloy cranio-maxillofacial restorator.
Also comprise, with reference to patient's pathological resin head mould, the post processing that the dummy that CNC milling machine is processed polishes, polishes, holes.
Described CT tomoscan obtains patient's cranio-maxillofacial view data and meets the following conditions: require scanning bed thickness≤10mm, rebuild bed thickness≤2mm, data are preserved with standard DICOM format record or optical file.
Described three-dimensional reconstruction comprises, adopts medical image control system software to form the 3 D graphic data of reflection cranio-maxillofacial original shape, and the output file form is STL.
Described computer-aided design comprises: the design, the design procedure that adopt general nonlinear surface modeling software to carry out dummy are: because all defect all almost can cover with unequal-sided tetragon, so (1) at first determine the tetragonal shape that defect is close substantially according to second 3-D graphic that goes on foot the reflection cranio-maxillofacial original shape of gained, complicated defect can cover with two or more tetragons; (2) utilize function in the Nonlinear Curved shape-designing software then, generate 4 closed curves repairing the border, generate occluding surfaces by 4 closed curves; (3) utilize the surface modeling function that this curved surface each several part is carried out the artificial model design again; (4) make the size of occluding surface can complete covering defect at last, its curve form can perfect present the original curved surface state of cranio-maxillofacial defect again, and can fit with perfection around the defect in the border all around, and described occluding surface is the dummy that computer generates, and also is dribbleware.
Thickness 〉=the 1mm of described dribbleware.
Individual titanium alloy cranio-maxillofacial restorator is characterized in that: the method for preparing numerical control ultra thin type thereof by individual titanium alloy cranio-maxillofacial restorator is prepared from, the thickness 〉=1mm of described individual titanium alloy cranio-maxillofacial restorator, and≤4mm.
Thickness 〉=the 1mm of described individual titanium alloy cranio-maxillofacial restorator, and≤3mm.
Thickness 〉=the 1mm of described individual titanium alloy cranio-maxillofacial restorator, and≤2mm.
Technique effect of the present invention is as follows:
The invention provides a kind of individual titanium alloy cranio-maxillofacial restorator and method for preparing numerical control ultra thin type thereof thereof, utilize CT technology, computer image technology and CNC milling machine machining forming technique, obtain ultrathin individual titanium alloy cranio-maxillofacial restorator, convenient and swift, and suitable individual demand.Ultrathin dribbleware is meant and is used for clinical medicine bone reparation aspect, the dribbleware of thickness within the 0.5mm-4mm scope.
Description of drawings
Fig. 1 is the numerical control ultra thin type preparation flow figure that implements individual titanium alloy cranio-maxillofacial restorator of the present invention.
Fig. 2 is the computer picture datagram of orbital reconstruction body.
Fig. 3 is a skull position dummy of implementing the present invention's preparation.
The specific embodiment
Below in conjunction with accompanying drawing (Fig. 1-Fig. 3) the present invention is further described.
At first as follows to the numerical control processing spec:
Utilize CNC milling machine that block titanium material is carried out the machining molding.This precision of method height, and to add man-hour used bulk be form through forging, coefficient of elasticity is lower with respect to founding materials, and certain plasticity is arranged, so dummy and the damaged edge of patient also can fit relatively more perfect.
Fig. 1 is the numerical control ultra thin type preparation flow figure that implements individual titanium alloy cranio-maxillofacial restorator of the present invention.In conjunction with Fig. 1 work flow of the present invention is described:
1, adopts the CT tomoscan to obtain patient's cranio-maxillofacial view data, require scanning bed thickness≤10mm, rebuild bed thickness≤2mm, data are preserved with standard DICOM format record or optical file.
2, cranio-maxillofacial computerized three-dimensional reconstruction carries out three-dimensional reconstruction with the cranio-maxillofacial data of cutting apart in the CT image, promptly adopts medical image control system software to form the 3 D graphic data of reflection cranio-maxillofacial original shape, and the output file form is STL.
3, the computer-aided design of dummy, the design, the design procedure that adopt general nonlinear surface modeling software to carry out dummy are: because all defect all almost can cover with unequal-sided tetragon, so (1), at first determine the tetragonal shape that defect is close substantially according to the 3-D graphic of reflection cranio-maxillofacial original shape of the second step gained, the defect of complexity can cover with two or more tetragons; (2), then utilize the function in the Nonlinear Curved shape-designing software,, have 4 closed curves to generate occluding surfaces repairing 4 closed curves of border production; (3), utilize the surface modeling function that this curved surface each several part is carried out the artificial model design again; (4) make the size of occluding surface can complete covering defect at last, its curve form can perfect present the original curved surface state of cranio-maxillofacial defect again, and can fit with perfection around the defect in the border all around, described occluding surface is the dummy that computer generates, also be dribbleware, the thickness 〉=1mm of dribbleware.Ultrathin dribbleware is meant and is used for clinical medicine bone reparation aspect, the dribbleware of thickness within the 0.5mm-4mm scope.
4, digital control processing dummy model
According to the above-mentioned dummy data of designing, utilize CNC milling machine that block titanium material is carried out the machining molding.
5, post processing
With reference to patient's pathological resin head mould, post processing such as the dummy that CNC milling machine is processed polishes, polishes, boring.Finally obtain personalized dummy
Fig. 2 is the computer picture datagram of orbital reconstruction body.Fig. 3 is a skull position dummy of implementing the present invention's preparation.By Fig. 2 and the tangible individualized feature of the visible dummy of Fig. 3.Among Fig. 2 and Fig. 3 edge ring around the reticulate pattern line, be not to refer to actual texture or grid, be a kind of common technique of painting that shows the solid surface effect, strengthen the impression of people to solid surface.
Should be pointed out that the above specific embodiment can make those skilled in the art more fully understand the invention, but do not limit the present invention in any way creation.Therefore, although this description has been described in detail the invention with reference to drawings and Examples, but, those skilled in the art are to be understood that, still can make amendment or be equal to replacement the invention, for example, titanium alloy also can substitute with other machinable biomaterials with biocompatibility etc.; And all do not break away from the technical scheme and the improvement thereof of the spirit and scope of the present invention, and it all is encompassed in the middle of the protection domain of the invention patent.
Claims (9)
1. the method for preparing numerical control ultra thin type thereof of individual titanium alloy cranio-maxillofacial restorator is characterized in that: adopt the CT tomoscan to obtain patient's cranio-maxillofacial view data; According to the cranio-maxillofacial view data, utilize computer to carry out three-dimensional reconstruction; Utilize computer-aided design to obtain the computer picture data of dummy; According to the computer picture data, utilize CNC milling machine to the molding of block titanium alloy machining, obtain ultrathin individual titanium alloy cranio-maxillofacial restorator.
2. the method for preparing numerical control ultra thin type thereof of individual titanium alloy cranio-maxillofacial restorator according to claim 1, it is characterized in that: also comprise, with reference to patient's pathological resin head mould, the post processing that the dummy that CNC milling machine is processed polishes, polishes, holes.
3. the method for preparing numerical control ultra thin type thereof of individual titanium alloy cranio-maxillofacial restorator according to claim 1, it is characterized in that: described CT tomoscan obtains patient's cranio-maxillofacial view data and meets the following conditions: require scanning bed thickness≤10mm, rebuild bed thickness≤2mm, data are preserved with standard DICOM format record or optical file.
4. the method for preparing numerical control ultra thin type thereof of individual titanium alloy cranio-maxillofacial restorator according to claim 1, it is characterized in that: described three-dimensional reconstruction comprises, adopt medical image control system software to form the 3 D graphic data of reflection cranio-maxillofacial original shape, the output file form is STL.
5. the method for preparing numerical control ultra thin type thereof of individual titanium alloy cranio-maxillofacial restorator according to claim 1, it is characterized in that: described computer-aided design comprises: the design, the design procedure that adopt general nonlinear surface modeling software to carry out dummy are: because all defect all almost can cover with unequal-sided tetragon, so (1) at first determine the tetragonal shape that defect is close substantially according to second 3-D graphic that goes on foot the reflection cranio-maxillofacial original shape of gained, complicated defect can cover with two or more tetragons; (2) utilize function in the Nonlinear Curved shape-designing software then, generate 4 closed curves repairing the border, generate occluding surfaces by 4 closed curves; (3) utilize the surface modeling function that this curved surface each several part is carried out the artificial model design again; (4) make the size of occluding surface can complete covering defect at last, its curve form can perfect present the original curved surface state of cranio-maxillofacial defect again, and can fit with perfection around the defect in the border all around, and described occluding surface is the dummy that computer generates, and also is dribbleware.
6. the method for preparing numerical control ultra thin type thereof of individual titanium alloy cranio-maxillofacial restorator according to claim 5 is characterized in that: the thickness 〉=1mm of described dribbleware.
7. individual titanium alloy cranio-maxillofacial restorator, it is characterized in that: the method for preparing numerical control ultra thin type thereof by individual titanium alloy cranio-maxillofacial restorator is prepared from, the thickness 〉=1mm of described individual titanium alloy cranio-maxillofacial restorator, and≤4mm.
8. individual titanium alloy cranio-maxillofacial restorator according to claim 7 is characterized in that: the thickness 〉=1mm of described individual titanium alloy cranio-maxillofacial restorator, and≤3mm.
9. individual titanium alloy cranio-maxillofacial restorator according to claim 7 is characterized in that: the thickness 〉=1mm of described individual titanium alloy cranio-maxillofacial restorator, and≤2mm.
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2008100578872A CN101229084A (en) | 2008-02-20 | 2008-02-20 | Individual titanium alloy cranio-maxillofacial restorator and method for preparing numerical control ultra thin type thereof |
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| CNA2008100578872A CN101229084A (en) | 2008-02-20 | 2008-02-20 | Individual titanium alloy cranio-maxillofacial restorator and method for preparing numerical control ultra thin type thereof |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101829801A (en) * | 2010-03-08 | 2010-09-15 | 淮阴工学院 | Five-axis linkage simulation machining method of dental prosthesis |
| CN102096942A (en) * | 2010-12-28 | 2011-06-15 | 嘉兴市第一医院 | Digitalized artificial skull forming method |
| CN102426614A (en) * | 2011-08-08 | 2012-04-25 | 北京大学口腔医学院 | Computer-aided design making method for dental personalized integrated non-metal post core |
| CN103784218A (en) * | 2014-01-27 | 2014-05-14 | 步星耀 | Craniocerebral three-dimensional forming restoration with muscle base window and preparation method thereof |
| CN103959359A (en) * | 2011-10-03 | 2014-07-30 | 克利夫兰临床医学基金会 | Synthetic bone model and method for providing same |
| CN104473705A (en) * | 2014-12-03 | 2015-04-01 | 卢清君 | Head maxillofacial bone implant and method for quickly molding same |
| CN105147341A (en) * | 2015-09-29 | 2015-12-16 | 合肥工业大学 | Three-dimensional model reconstructing method for keeping fracture line of jaw bone |
| CN105180807A (en) * | 2015-08-28 | 2015-12-23 | 武汉大学 | Detection method for manufacturing precision of dental restoration support |
| CN105686803A (en) * | 2016-01-08 | 2016-06-22 | 兰津 | Scanning data processing method and device |
| CN105796160A (en) * | 2016-03-01 | 2016-07-27 | 贵州师范大学 | Manufacturing method of individual hip joint percutaneous puncture guide plate |
| CN105893769A (en) * | 2016-04-11 | 2016-08-24 | 刘国远 | Preparation method of alloy cranial prosthesis |
| WO2022057994A1 (en) * | 2020-09-16 | 2022-03-24 | Ayad Seif Eldein Mohamed Kamel | Computer aided design computer aided manufacturing milled titanium restoration as a graft for the lost dental bone |
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2008
- 2008-02-20 CN CNA2008100578872A patent/CN101229084A/en active Pending
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101829801B (en) * | 2010-03-08 | 2013-05-22 | 淮阴工学院 | Five-axis linkage simulation machining method of dental prosthesis |
| CN101829801A (en) * | 2010-03-08 | 2010-09-15 | 淮阴工学院 | Five-axis linkage simulation machining method of dental prosthesis |
| CN102096942A (en) * | 2010-12-28 | 2011-06-15 | 嘉兴市第一医院 | Digitalized artificial skull forming method |
| CN102096942B (en) * | 2010-12-28 | 2012-09-05 | 嘉兴市第一医院 | Digitalized artificial skull forming method |
| CN102426614A (en) * | 2011-08-08 | 2012-04-25 | 北京大学口腔医学院 | Computer-aided design making method for dental personalized integrated non-metal post core |
| CN103959359A (en) * | 2011-10-03 | 2014-07-30 | 克利夫兰临床医学基金会 | Synthetic bone model and method for providing same |
| CN103784218B (en) * | 2014-01-27 | 2017-04-19 | 步星耀 | Craniocerebral three-dimensional forming restoration with muscle base window and preparation method thereof |
| CN103784218A (en) * | 2014-01-27 | 2014-05-14 | 步星耀 | Craniocerebral three-dimensional forming restoration with muscle base window and preparation method thereof |
| CN104473705A (en) * | 2014-12-03 | 2015-04-01 | 卢清君 | Head maxillofacial bone implant and method for quickly molding same |
| CN105180807A (en) * | 2015-08-28 | 2015-12-23 | 武汉大学 | Detection method for manufacturing precision of dental restoration support |
| CN105180807B (en) * | 2015-08-28 | 2018-05-29 | 武汉大学 | A kind of oral restoration body support frame makes the detection method of precision |
| CN105147341A (en) * | 2015-09-29 | 2015-12-16 | 合肥工业大学 | Three-dimensional model reconstructing method for keeping fracture line of jaw bone |
| CN105147341B (en) * | 2015-09-29 | 2017-05-17 | 合肥工业大学 | Three-dimensional model reconstructing method for keeping fracture line of jaw bone |
| CN105686803A (en) * | 2016-01-08 | 2016-06-22 | 兰津 | Scanning data processing method and device |
| CN105686803B (en) * | 2016-01-08 | 2019-06-14 | 上海伴诚医疗科技有限公司 | Scan data processing method and processing device |
| CN105796160A (en) * | 2016-03-01 | 2016-07-27 | 贵州师范大学 | Manufacturing method of individual hip joint percutaneous puncture guide plate |
| CN105893769A (en) * | 2016-04-11 | 2016-08-24 | 刘国远 | Preparation method of alloy cranial prosthesis |
| CN105893769B (en) * | 2016-04-11 | 2018-06-26 | 刘国远 | A kind of preparation method of alloy brainpan bone repair |
| WO2022057994A1 (en) * | 2020-09-16 | 2022-03-24 | Ayad Seif Eldein Mohamed Kamel | Computer aided design computer aided manufacturing milled titanium restoration as a graft for the lost dental bone |
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