CN105266874A - Upper jaw Le Fort I type osteotomy operation guide plate and design method thereof - Google Patents
Upper jaw Le Fort I type osteotomy operation guide plate and design method thereof Download PDFInfo
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- CN105266874A CN105266874A CN201410483823.4A CN201410483823A CN105266874A CN 105266874 A CN105266874 A CN 105266874A CN 201410483823 A CN201410483823 A CN 201410483823A CN 105266874 A CN105266874 A CN 105266874A
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Abstract
The invention discloses an upper jaw Le Fort I type osteotomy operation guide plate and a design method thereof; the operation guide plate is used for fixing 4 titanium plates on the front wall of the upper jaw so as to rectify cranio-jaw-facial deformity; the guide plate comprises a guide plate body and guide holes; the guide plate body comprises a left structure and a right structure mutually separated; the left and right structures are respectively used for operation of the left upper jaw and right upper jaw; the outer surface of each structure is provided with an osteotomy line and a plurality of guide holes; the osteotomy line is provided with a plurality of osteotomy line mark holes penetrating the structure; a positioning hole is arranged on each guide hole and the structure; one ends, close to the nose cavity, of the two structures are respectively provided with a piriform aperture edge limit composition; a spina nasalis anterior limit composition is arranged below the piriform aperture edge limit composition; the inner surface of the structure is provided with a water guide slot. The invention also provides a method designing the upper jaw Le Fort I type osteotomy operation guide plate.
Description
Technical field
The present invention relates to upper jaw LeFort I type osteotomy auxiliary device field, in particular to a kind of upper jaw LeFort I type bone-culting operation guide plate and method for designing thereof.
Background technology
LeFort I osteotomy is the most frequently used art formula that orthognathic surgery rescues all kinds of upper jaw bone bone sex deviation.Can upper jaw dentale section is accurately moved to the position of pre-operative surgical conceptual design in art, be the most critical factor of aesthetic and functional effect after decision operation in patients.
Traditional operation process is after sectioning upper jaw bone along LeFortI type osteotomy line, the shift position of bite guide determination upper jaw dentale section in the middle of utilizing.Traditional clinical method is, preoperatively completes model surgery according to design operation plan, makes the middle bite guide of self curing plastic material.In art based on mandibular bone, the reposition after utilizing bite guide determination upper jaw dentale section to move.While this traditional method can obtain comparatively satisfied clinical effectiveness, also there is comparatively significantly defect.Middle bite guide determining to good results during shift position before and after dentale section, but but accurately cannot instruct the movement of dentale section horizontal plane and vertical direction in art.Existing multinomial research shows that the dentale fragment position that the method obtains and design attitude exist relatively large deviation.Research as scholars such as McCance is pointed out, when using middle bite guide, although carried out the accurate operation in preoperative conscientiously design and art, all there is the position deviation at 0-10mm in the horizontal direction with vertical direction.The research of the scholars such as Sharifi is then pointed out, causes the reason being mainly two aspects of this deviation: a reason there is difference between the horizontal plane of facebow and real orbitomeatal plane; Another reason be patient at erect position and keep central occlusion time condyle position and the condyle position of patient on operating-table during dorsal position there is difference.In clinical position under patient face 1/3 vertical height a lot of degree of determination on depend on the clinical experience of surgical doctor.
Along with developing rapidly and increasing clinical practice of digital surgical technic, the technology such as virtual operation design, digitized bite guide and surgical navigational start to be used to determine the reposition of dentale section in LeFort I osteotomy.Utilize the shift position of airmanship determination upper jaw dentale section, current rarely seen case report, not yet has the degree of accuracy research of the sample size of coincidence statistics meaning.Self there is the systematic error of 1-2mm in current airmanship, the steadiness that navigator fix ball is fixed simultaneously also can have a strong impact on the accuracy of navigation, and above-mentioned factor all may have a strong impact on the accuracy of dentale section location in art.The technology that designs and produces of digitized bite guide is mature on the whole at present.Current research display, compared with conventional snap guide plate, digitized bite guide can significantly improve the precision of dentale fragment position movement.Due to using method and the conventional snap guide plate similar (utilizing the position of mandibular bone to determine the reposition of upper jaw dentale section) of digitized bite guide, therefore the determination dentale section level that can not feel quite pleased of digitized bite guide to Vertical dimension shift length.Based on the surgical guide that upper jaw bone front wall design is novel, the dentale fragment position of Design accurately being realized in patient body, is a study hotspot of current orthognathic surgery field Design of digital.The scholars such as MohamedF, B.Philippe, BiaoLi and ShizhuBai sets forth different solutions.The new surgical guide that these scholars design and produce be all utilize upper jaw bone antetheca or simultaneously denture to design novel operation guide plate, and then the position after the movement determining dentale section.Based on the individual operation guide plate of upper jaw bone antetheca, complete virtual operation in computer after, based on upper jaw bone front wall design individual operation guide plate, the reposition of the upper jaw bone determined by virtual operation is transferred in art, such technical scheme does not rely on the mandibular bone of position changeable, and existing document shows the clinical effectiveness of desirable satisfaction.But because upper jaw bone antetheca is comparatively smooth, guide plate self poisoning may occur deviation, therefore these surgical guides are when determining dentale section reposition, need first to carry out firm fixing to guide plate self, and step is comparatively loaded down with trivial details.Such guide plate occurred in existing bibliographical information is because the upper jaw bone after moving fixed by commodity in use titanium plate titanium nail, and therefore this kind of guide plate is many is made up of two guide plates, and one is osteotomy guide plate, and another is fixing guide plate, comparatively loaded down with trivial details when using in operation.Meanwhile, the commercialization titanium plate bent is used to fix dentale section, consuming time more, and stress may be produced due to titanium plate and not fitting of surface of bone.
Therefore, clinical in exploring new surgical guide at present, to determine the position of upper jaw dentale section more accurately, improve operation precision, improve clinical therapeutic efficacy.
Summary of the invention
The invention provides a kind of upper jaw LeFort I type osteotomy surgical guide and Individual design method thereof, in order to determine the position of upper jaw dentale section more accurately, improve operation precision, improve clinical therapeutic efficacy.
For achieving the above object, the invention provides a kind of upper jaw bone low level fracture bone-culting operation guide plate, in order to auxiliary in operation, individuation titanium plate being fixed to upper jaw bone antetheca to correct Craniofacial anomalies, comprising guide plate main body and pilot hole, wherein:
Described guide plate main body comprises two structures be separated from each other, and during use, two described structures are respectively used to the hands art of left side and right maxillary bone; The outer surface of each described structure is provided with osteotomy mark line and multiple described pilot hole, be provided with multiple osteotomy wire tag hole vertically running through described structure along described osteotomy mark line, corresponding each described pilot hole vertically runs through described structure and is provided with a locating hole communicated with this pilot hole; One end, close nasal cavity side of two described structures is respectively equipped with apertura piriformis edge position limiting structure, is provided with spina nasalis anterior position position limiting structure in the below of described apertura piriformis edge position limiting structure; The described structure back side is provided with guiding gutter; Wherein
Described guide plate main body, covers upper jaw bone antetheca during for performing the operation, to ensure the accurate positioning of described surgical guide;
Described osteotomy mark line, for the osteotomy line position of labelling LeFort I osteotomy;
Described osteotomy wire tag hole, for passing described osteotomy wire tag hole at upper jaw bone front wall in LeFort I osteotomy, to mark osteotomy line position on upper jaw bone;
Described pilot hole and described locating hole, hole through described pilot hole and described locating hole for perforating bur in operation on upper jaw bone antetheca, marks the position of fixing titanium nail;
Described apertura piriformis edge position limiting structure, for covering apertura piriformis edge in operation, limiting described guide plate main body and being located in unique and repeatably position, and avoiding the slip of described guide plate main body, to ensure the accurate positioning of described guide plate main body;
Described guiding gutter, covered the position of described locating hole residing for the described structure back side, for the water-spraying control in performing the operation when upper jaw bone forearm is holed, prevented upper jaw bone from burning;
Described spina nasalis anterior position position limiting structure, for covering spina nasalis anterior edge in operation, jointly limit described guide plate main body with described apertura piriformis edge position limiting structure and be located in unique and repeatably position, and avoid the slip of described guide plate main body, to ensure the accurate positioning of described guide plate main body.
Wherein, the material of described surgical guide is cochrome.
Wherein, described projection has 8.
Wherein, the thickness of described guide plate main body is 1mm.
Wherein, described guiding gutter is the U-type groove of multiple opening towards described guide plate body rim, and the cross section of described U-type groove is the semicircle of diameter 0.9mm.
The present invention also discloses a kind of method designing above-mentioned upper jaw LeFortI type osteotomy surgical guide, comprises the following steps:
S1: the CBCT image or the spiral CT images that obtain patient, extracts its craniofacial region skeletal tissue data; According to the virtual three-dimensional model of described craniofacial region skeletal tissue data reconstruction patient craniofacial region skeleton;
S2: according to the requirements of operation of upper jaw LeFortI type osteotomy, in the position of the bilateral upper jaw bone fore-arm labelling osteotomy line of described virtual three-dimensional model; And choose sclerotin thicker part at the biomechanics shore position of bilateral upper jaw bone, utilize cylinder to demarcate the position of the fixing titanium nail of plan respectively at osteotomy line upper and lower sides; According to predetermined clinical operation scheme, in computer, carry out sham operated, adjustment upper jaw dentale section and described cylinder are to the position meeting this predetermined clinical operation scheme simultaneously, preserve the upper jaw bone after adjustment and described cylindrical data;
S3: by preserved upper jaw bone and described cylindrical data importing Three-dimensional Design Software, draw described surgical guide, concrete steps are:
S31: draw described structure respectively according to upper jaw bone antetheca, cheekbone alveolar ridge, apertura piriformis and spina nasalis anterior position, wherein: the profile drawing described structure at upper jaw bone antetheca place, and the thickness setting described structure is 1mm; Described apertura piriformis edge position limiting structure and spina nasalis anterior position position limiting structure is drawn respectively at apertura piriformis and spina nasalis anterior place, wherein, the edge of described structure is to cheekbone alveolar ridge but do not enter bone Bi Daoao district, in order to avoid guide plate main body described in impact operation is in place, the top edge of described guide plate main body avoids infraorbital foramen, to avoid damaging nervus infraorbitalis in operation;
S32: utilize described cylinder to draw multiple described pilot hole and multiple described locating hole, described pilot hole wall thickness 1mm is set; On described structure, the position of labelling osteotomy line forms osteotomy mark line, and designs three or four described osteotomy wire tag holes on osteotomy mark line described in every bar;
S33: described guide plate main body and described pilot hole and described upper jaw bone and described cylinder are carried out Boolean calculation, obtain the shape of the contact surface of described guide plate main body and upper jaw bone, ensure that the contact surface of described guide plate main body and upper jaw bone fits tightly according to surface of bone form and surface of bone;
S34: at the back side of described guide plate main body, walks shaped position along described locating hole, designs the U-type groove of multiple opening towards described guide plate body rim, is described guiding gutter, wherein, and the semicircle of to be diameter be in the cross section of described guiding gutter 0.9mm;
S4: preserve the described surgical guide data designed.
Wherein, according to the described surgical guide data of preserving, described surgical guide is made with 3 D-printing.
Wherein, the material of described surgical guide is cochrome.
Wherein, described pilot hole and described locating hole are respectively 8.
Compared with prior art, beneficial effect of the present invention is embodied in:
The invention provides a kind of upper jaw bone low level fracture bone-culting operation guide plate, since this surgical guide, self surface of bone form of patient designs, and make with 3 D-printing method, guide plate has novel self limiting positioning result, the upper jaw bone antetheca that can be fitted in patient completely and firmly meets the unique positions of Design, thus determine the position of upper jaw dentale section more accurately, improve operation precision, improve clinical therapeutic efficacy.In addition, this guide plate, compared with similar guide plate, does not need guide plate self to be fixed on upper jaw bone antetheca in Clinical practice, is combined the labor intensity that can simplify surgical operation step and doctor with individuation titanium plate simultaneously.Guide plate has pilot hole and locating hole, can ensure with guide plate with the use of the fixed position of individuation titanium plate accurately meet Design position, and can effectively avoid producing obvious stress on individuation titanium plate.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the upper jaw LeFortI type osteotomy surgical guide front view of one embodiment of the invention;
Fig. 2 is that the upper jaw LeFortI type osteotomy surgical guide of one embodiment of the invention is with an angle oblique view;
Fig. 3 is the upper jaw LeFortI type osteotomy surgical guide rear view of one embodiment of the invention;
Fig. 4 is the method flow diagram of the design upper jaw LeFortI type osteotomy surgical guide of one embodiment of the invention.
Description of reference numerals: 1-osteotomy mark line; 2-structure; 3-osteotomy wire tag hole; 4-pilot hole; 5-apertura piriformis edge position limiting structure; 6-guiding gutter; 7-spina nasalis anterior position position limiting structure; 8-locating hole.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not paying the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
A kind of upper jaw bone low level fracture bone-culting operation guide plate provided by the invention, in order to auxiliary in operation, individuation titanium plate is fixed to upper jaw bone antetheca to correct Craniofacial anomalies, this surgical guide comprises guide plate main body and pilot hole.
Please refer to Fig. 1,2,3, as shown in the figure, described guide plate main body comprises two structures be separated from each other 2, during use, two structure 2 cross direction profiles are respectively used to the operation of left side and right maxillary bone, (two structure 2 distributions are symmetrical, and the population structure of two structures 2 is consistent, and graphical indicia is all based on the structure on right side), during operation, two structures 2 cover upper jaw bone forearm, to ensure the accurate positioning of described surgical guide; The outer surface of each described structure 2 is provided with osteotomy mark line 1 and multiple described pilot hole 4, and osteotomy mark line 1 is for the osteotomy line position of labelling upper jaw bone low level fracture bone-culting operation; In one embodiment of the invention, the pilot hole 4 of each structure 2 has 8; Be provided with multiple osteotomy wire tag hole 3 vertically running through structure 2 along osteotomy mark line 1, osteotomy wire tag hole 3 in LeFort I osteotomy through osteotomy wire tag hole 3 at upper jaw bone front wall, to mark osteotomy line position on upper jaw bone; Corresponding each pilot hole 4 vertically runs through structure 2 and is provided with a locating hole 8 communicated with this pilot hole 4; Pilot hole 4 and the effect of locating hole 8 use perforating bur to pass pilot hole 4 in perform the operation and locating hole 8 is holed on upper jaw bone antetheca, marks the position that fixing titanium is followed closely.One end, close nasal cavity side of two structures 2 is respectively equipped with apertura piriformis edge position limiting structure 5, is provided with spina nasalis anterior position position limiting structure 7 in the below of apertura piriformis edge position limiting structure 5; As shown in Figure 2, apertura piriformis edge position limiting structure 5 slightly curves inwardly, for the apertura piriformis edge of the patient's surface of bone that clings to, so that fixation structure 2; Spina nasalis anterior position position limiting structure 7 is provided with in the below of apertura piriformis edge position limiting structure 5, as shown in Figure 2, spina nasalis anterior position position limiting structure 7 is outwardly micro-, and the spina nasalis anterior position position limiting structure 7 of two structures 2 is combined together to interfix, and assists simultaneously and structure 2 is fixed on patient forearm.Apertura piriformis edge position limiting structure 5 and spina nasalis anterior position position limiting structure 7 cooperatively interact, and described guide plate main body are defined in unique and repeatably position, and avoid the slip of described guide plate main body, to ensure the accurate positioning of described guide plate main body; Wherein unique and repeatably position refer to, described guide plate main body can the position unique patient facial region in place.
As shown in Figures 2 and 3, structure 2 back side is provided with guiding gutter 6; In one embodiment of the invention, guiding gutter 6 comprises the U-type groove of multiple opening towards described guide plate body rim, and the cross section of described U-type groove is the semicircle of diameter 0.9mm.Guiding gutter 6 covered the position of locating hole 8 residing for structure 2 back side, for operation in when upper jaw bone forearm is holed water-spraying control, prevent upper jaw bone from burning.
In one embodiment of the invention, the material of described surgical guide is cochrome.
In one embodiment of the invention, the thickness of described guide plate main body is 1mm.
The present invention also discloses a kind of method designing above-mentioned upper jaw bone low level fracture bone-culting operation guide plate, as shown in Figure 4, comprises the following steps (being illustrated below in conjunction with a concrete case study on implementation of the present invention):
S1: the CBCT image or the spiral CT images that obtain patient, extracts its craniofacial region skeletal tissue data, preserves in dicom format; By the data importing Mimics10.0 software of DICOM form, according to the virtual three-dimensional model of this craniofacial region skeletal tissue data reconstruction patient craniofacial region skeleton;
S2: according to the requirement of upper jaw bone low level fracture bone-culting operation, the position of osteotomy line described in the bilateral upper jaw bone fore-arm mark of described virtual three-dimensional model; And choose sclerotin thicker part at the biomechanics shore position of bilateral upper jaw bone, utilize cylinder to demarcate the position of the fixing titanium nail of plan respectively at described osteotomy line upper and lower sides; According to predetermined clinical operation scheme, sham operated is carried out in computer, adjustment upper jaw dentale section and described cylinder are to the position meeting this predetermined clinical operation scheme simultaneously, preserve the upper jaw bone after adjustment and described cylindrical data with STL form;
S3: by preserved upper jaw bone and described cylindrical data importing Three-dimensional Design Software FreeForm, draw described surgical guide, concrete steps are:
S31: according to upper jaw bone antetheca, cheekbone alveolar ridge, apertura piriformis and spina nasalis anterior position rendering architecture body 2 respectively, wherein: at the profile of upper jaw bone antetheca place rendering architecture body 2, and the thickness of setting structure body 2 is 1mm; Described apertura piriformis edge position limiting structure and spina nasalis anterior position position limiting structure is drawn respectively at apertura piriformis and spina nasalis anterior place, wherein, the edge of structure 2 is to cheekbone alveolar ridge but do not enter bone Bi Daoao district, in order to avoid guide plate main body described in impact operation is in place, the top edge of structure 2 avoids infraorbital foramen, to avoid damaging nervus infraorbitalis in operation;
S32: utilize described cylinder to draw 8 pilot holes 4 and 8 locating holes 8, the wall thickness arranging pilot hole 4 is 1mm; On structure 2, the position of labelling osteotomy line forms osteotomy mark line 1, and designs three or four osteotomy wire tag holes 3 on every bar osteotomy mark line 1;
S33: described guide plate main body and pilot hole 4 are carried out Boolean calculation with described upper jaw bone and described cylinder, obtain the shape of the contact surface of described guide plate main body and upper jaw bone, ensure that the contact surface of described guide plate main body and upper jaw bone fits tightly according to surface of bone form and surface of bone;
S34: at the back side of described guide plate main body, walks shaped position along locating hole 3, designs the U-type groove of multiple opening towards described guide plate body rim, is guiding gutter 6, wherein, and the semicircle of to be diameter be in the cross section of guiding gutter 6 0.9mm;
S4: preserve the described surgical guide data designed with STL form.
According to the described surgical guide data that above-mentioned steps S4 preserves, described surgical guide can be made with 3 D-printing.
One of ordinary skill in the art will appreciate that: accompanying drawing is the schematic diagram of an embodiment, the module in accompanying drawing or flow process might not be that enforcement the present invention is necessary.
One of ordinary skill in the art will appreciate that: the module in the device in embodiment can describe according to embodiment and be distributed in the device of embodiment, also can carry out respective change and be arranged in the one or more devices being different from the present embodiment.The module of above-described embodiment can merge into a module, also can split into multiple submodule further.
Last it is noted that above embodiment is only in order to illustrate technical scheme of the present invention, be not intended to limit; Although with reference to previous embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in previous embodiment, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of embodiment of the present invention technical scheme.
Claims (9)
1. a LeFort I osteotomy surgical guide, is fixed to patient's upper jaw bone antetheca to correct Craniofacial anomalies in order to auxiliary in operation by titanium plate, it is characterized in that, comprise guide plate main body and pilot hole, wherein:
Described guide plate main body comprises two structures be separated from each other, and during use, two described structures are respectively used to the hands art of left side and right maxillary bone; The outer surface of each described structure is provided with osteotomy mark line and multiple described pilot hole, be provided with multiple osteotomy wire tag hole vertically running through described structure along described osteotomy mark line, corresponding each described pilot hole vertically runs through described structure and is provided with a locating hole communicated with this pilot hole; One end, close nasal cavity side of two described structures is respectively equipped with apertura piriformis edge position limiting structure, is provided with spina nasalis anterior position position limiting structure in the below of described apertura piriformis edge position limiting structure; The described structure back side is provided with guiding gutter; Wherein
Described guide plate main body, covers upper jaw bone antetheca during for performing the operation, to ensure the accurate positioning of described surgical guide;
Described osteotomy mark line, for the osteotomy line position of labelling LeFort I osteotomy;
Described osteotomy wire tag hole, for passing described osteotomy wire tag hole at upper jaw bone front wall in LeFort I osteotomy, to mark osteotomy line position on upper jaw bone;
Described pilot hole and described locating hole, hole through described pilot hole and described locating hole for perforating bur in operation on upper jaw bone antetheca, marks the position of fixing titanium nail;
Described apertura piriformis edge position limiting structure, for covering apertura piriformis edge in operation, limiting described guide plate main body and being located in unique and repeatably position, and avoiding the slip of described guide plate main body, to ensure the accurate positioning of described guide plate main body;
Described guiding gutter, covered the position of described locating hole residing for the described structure back side, for the water-spraying control in performing the operation when upper jaw bone forearm is holed, prevented upper jaw bone from burning;
Described spina nasalis anterior position position limiting structure, for covering spina nasalis anterior edge in operation, jointly limit described guide plate main body with described apertura piriformis edge position limiting structure and be located in unique and repeatably position, and avoid the slip of described guide plate main body, to ensure the accurate positioning of described guide plate main body.
2. LeFort I osteotomy surgical guide according to claim 1, is characterized in that, the material of described surgical guide is cochrome.
3. upper jaw LeFortI type osteotomy surgical guide according to claim 1, it is characterized in that, described projection has 8.
4. upper jaw LeFortI type osteotomy surgical guide according to claim 1, it is characterized in that, the thickness of described guide plate main body is 1mm.
5. upper jaw bone low level fracture bone-culting operation guide plate according to claim 1, it is characterized in that, described guiding gutter is the U-type groove of multiple opening towards described guide plate body rim, and the cross section of described U-type groove is the semicircle of diameter 0.9mm.
6. design a method for claim 1-5 arbitrary described upper jaw bone low level fracture bone-culting operation guide plate, it is characterized in that, comprise the following steps:
S1: the CBCT image or the spiral CT images that obtain patient, extracts its craniofacial region skeletal tissue data; According to the virtual three-dimensional model of described craniofacial region skeletal tissue data reconstruction patient craniofacial region skeleton;
S2: according to the requirements of operation of upper jaw LeFortI type osteotomy, in the position of the bilateral upper jaw bone fore-arm labelling osteotomy line of described virtual three-dimensional model; And choose sclerotin thicker part at the biomechanics shore position of bilateral upper jaw bone, utilize cylinder to demarcate the position of the fixing titanium nail of plan respectively at osteotomy line upper and lower sides; According to predetermined clinical operation scheme, in computer, carry out sham operated, adjustment upper jaw dentale section and described cylinder are to the position meeting this predetermined clinical operation scheme simultaneously, preserve the upper jaw bone after adjustment and described cylindrical data;
S3: by preserved upper jaw bone and described cylindrical data importing Three-dimensional Design Software, draw described surgical guide, concrete steps are:
S31: draw described structure respectively according to upper jaw bone antetheca, cheekbone alveolar ridge, apertura piriformis and spina nasalis anterior position, wherein: the profile drawing described structure at upper jaw bone antetheca place, and the thickness setting described structure is 1mm; Described apertura piriformis edge position limiting structure and spina nasalis anterior position position limiting structure is drawn respectively at apertura piriformis and spina nasalis anterior place, wherein, the edge of described structure is to cheekbone alveolar ridge but do not enter bone Bi Daoao district, in order to avoid guide plate main body described in impact operation is in place, the top edge of described guide plate main body avoids infraorbital foramen, to avoid damaging nervus infraorbitalis in operation;
S32: utilize described cylinder to draw multiple described pilot hole and multiple described locating hole, described pilot hole wall thickness 1mm is set; On described structure, the position of labelling osteotomy line forms osteotomy mark line, and designs three or four described osteotomy wire tag holes on osteotomy mark line described in every bar;
S33: described guide plate main body and described pilot hole and described upper jaw bone and described cylinder are carried out Boolean calculation, obtain the shape of the contact surface of described guide plate main body and upper jaw bone, ensure that the contact surface of described guide plate main body and upper jaw bone fits tightly according to surface of bone form and surface of bone;
S34: at the back side of described guide plate main body, walks shaped position along described locating hole, designs the U-type groove of multiple opening towards described guide plate body rim, is described guiding gutter, wherein, and the semicircle of to be diameter be in the cross section of described guiding gutter 0.9mm;
S4: preserve the described surgical guide data designed.
7. the method for design upper jaw bone low level fracture bone-culting operation guide plate according to claim 6, is characterized in that, according to the described surgical guide data of preserving, make described surgical guide with 3 D-printing.
8. the method for design upper jaw bone low level fracture bone-culting operation guide plate according to claim 6, it is characterized in that, the material of described surgical guide is cochrome.
9. the method for design upper jaw bone low level fracture bone-culting operation guide plate according to claim 6, it is characterized in that, described pilot hole and described locating hole are respectively 8.
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| CN105796188A (en) * | 2016-03-03 | 2016-07-27 | 湖北嘉三维高科股份有限公司 | Guide plate for osteotomy |
| CN105852931A (en) * | 2016-05-03 | 2016-08-17 | 中山大学孙逸仙纪念医院 | Additive-manufactured guiding positioning assembly for jawbone tumor resection and reconstruction |
| CN106236333A (en) * | 2016-10-01 | 2016-12-21 | 董谢平 | The artificial vertebral body of a kind of road nail pedicle fix in the past and location and installation instrument |
| CN107049527A (en) * | 2017-06-12 | 2017-08-18 | 四川大学 | Treatment guide plate for root canal and preparation method thereof |
| CN107736914A (en) * | 2017-10-30 | 2018-02-27 | 吉林大学 | Maxilla moves precise localizer |
| CN109864821A (en) * | 2019-04-03 | 2019-06-11 | 深圳市艾科赛龙科技股份有限公司 | A kind of production method of surgical navigation plate |
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| CN107736914B (en) * | 2017-10-30 | 2020-02-28 | 吉林大学 | Accurate positioner for upper jaw movement |
| CN109864821A (en) * | 2019-04-03 | 2019-06-11 | 深圳市艾科赛龙科技股份有限公司 | A kind of production method of surgical navigation plate |
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