CN105380707A - Individual customized osteotomy orthopedic guide plate and manufacturing method thereof - Google Patents
Individual customized osteotomy orthopedic guide plate and manufacturing method thereof Download PDFInfo
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- CN105380707A CN105380707A CN201510708362.0A CN201510708362A CN105380707A CN 105380707 A CN105380707 A CN 105380707A CN 201510708362 A CN201510708362 A CN 201510708362A CN 105380707 A CN105380707 A CN 105380707A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/80—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates
- A61B17/8004—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates with means for distracting or compressing the bone or bones
Abstract
The invention discloses an individualized customized osteotomy orthopedic guide plate, which is characterized by comprising the following components in parts by weight: the osteotomy orthopedic guide plate has a working surface for engaging the bone surface or for inserting a portion of the bone in contact therewith into the guide plate, an outer surface defined by the thickness of the bone in contact with the target bone at each location, and sides of the guide plate controlled by the curvature of the apophyseal marking, with each side aligned with the apophyseal marking; firstly, modeling a target skeleton by a reverse engineering technology to obtain a digital model of the skeleton, and measuring the position to be subjected to osteotomy correction, the osteotomy angle and the plane of the angle; then, the characteristics of each surface, the osteotomy groove, the through hole, the fracture hole and the fillet of the guide plate are designed in sequence according to the osteotomy parameters, and finally 3d printing is carried out. The invention has the advantages of high precision, simplicity, practicability, rapid molding model making, wide application range and the like.
Description
Technical field
The present invention relates to and utilize Computer Aided Modeling field, particularly relate to the individuation customization orthopedic guide plate digital modeling of osteotomy and quick molding method thereof.
Background technology
The industrial revolution of current 3D printing technique is in the ascendant, 3D prints osteotomy guide plate and is still in laboratory stage in clinical application, the clinical practice main cause restricting this technology has three: 1. precision, the clinical requirement to osteotomy precision is higher, if deviation is larger, osteotomy failure may be caused, 2. common design is unreasonable, the problem considered is few, structure is too simple, clinician can not be correct, promptly install, cause still needing perspective to determine plane, do not give full play of the advantage of preoperative plan and 3D printing, so be necessary the osteotomy guide plate designing more convenient clinical practice.
Summary of the invention
For problems of the prior art, the object of the present invention is to provide a kind of precision high, the individuation customization orthopedic guide plate of osteotomy reasonable in design and quick molding method thereof.
For reaching above object, the present invention adopts following technical scheme.
The orthopedic guide plate of a kind of individuation customization osteotomy, its feature comprises: its work surface of the orthopedic guide plate of osteotomy and bone surface are fitted, the part that maybe skeleton can be in contact with it embeds in guide plate, its outer surface decides by with the thickness needed for each position of targeted bone contact surface, each side of guide plate is controlled by the camber line of apophysis mark, utilize each side to align with apophysis mark, prevent osteotomy guide plate placement location mistake, guide plate mid portion is provided with some osteotomy grooves, osteotomy groove can pass through for goose saw or scroll saw, the two side ends of osteotomy is provided with the some through holes be arranged in parallel with Osteotomy, these through-bore axis are positioned at same plane or Different Plane, this plane plane and determining residing for RA, number is determined by the number of osteotomy groove, the corresponding one or more through hole of each osteotomy groove, through hole is used for inserting the supporting Internal fixation pin of the design, or osseous pin, or cutting needle, or screw needle, for temporary fixed osteotomy guide plate and bone, after preventing osteotomy, the displacement of bone block affects follow-up osteotomy, and the Internal fixation pin pierced can utilize after osteotomy carry out bone stump to line registration, realize accurate monoplane or multilevel angle correction, prevent because inaccurate the causing that reset rotates, the operative failure that angulation displacement or angle correction inaccuracy etc. cause, and it is temporary fixed Internal fixation pin to be utilized after osteotomy completes to carry out, for carrying out para-position more accurately, supporting universal or Custom Prosthesis registration holder can be used, the block one side that osteotomy groove surrounds designs weak site, for osteotomy complete this block of retrotorsion destroy guide plate be convenient to guide plate removal and without the need to taking out Internal fixation pin, through hole according to need design foramen lacerum, for the guide plate that breaks, be convenient to guide plate removal and without the need to taking out Internal fixation pin.Guide plate also has Fillet Feature, prevents sharp edges damaged tissue.After osteotomy completes after removal guide plate, utilize Internal fixation pin temporary fixed, and internal fixation plate is installed, inside/outside fixed rack structure is fixed bone; The orthopedic guide plate of this osteotomy is set up mathematical model by reverse-engineering modeling technique and is carried out designing rear 3D printing acquisition.
Supporting its main body of Custom Prosthesis registration holder is bar or plate, its middle position is provided with through hole, the arrangement of through hole decides according to the position of Internal fixation pin after osteotomy standard reset squeezed into according to osteotomy guide plate, all through-bore axis are in same plane and parallel, larger for bone surface amplitude, the one side of bar can be designed to mate with surface of bone by osteotomy guide plate method for designing or the curved surface of approximate match, and making it press close to surface of bone does not better affect subsequent operation.This holder is used for the locking pin after osteotomy to fix, and utilizes locking pin bone block can be made to be on correct position to bone block tractive after fixing, and makes it obtain certain stability to be beneficial to operation below.Its processing mode of Custom Prosthesis registration holder is that 3D prints.
Its supporting universal registration holder is characterised in that: it is made up of guide rail, slide block, fixture block, screw, guide rail is made up of two identical parallel bars, its slide block has groove can be installed on guide rail, there is screw centre, screw is had in the middle of fixture block, its bottom surface has draw-in groove to block Internal fixation pin, by the pressurization of screw, fixture block, slide block and guide rail are fixed, guide rail is utilized to make Internal fixation pin be fixed on same plane, make to arrive the effect object identical with Custom Prosthesis, due to slide block adjustable position, pressurize so the bone after to osteotomy can be realized.Due to fixation, this holder can be used as final external fixer and uses.
A manufacture method for the orthopedic guide plate of individuation customization osteotomy, first carries out to target skeleton the mathematical model that modeling obtains skeleton by reverse Engineering Technology, and measures the orthopedic position of wish osteotomy, osteotomy angle, angle place plane; Then, design each face of guide plate, osteotomy groove, through hole, foramen lacerum, Fillet Feature successively according to these osteotomy parameters, finally carry out 3d printing; Specifically comprise the following steps; First step data acquisition, Iamge Segmentation obtain some cloud or the model data of target, and repeatedly confirm to cover plate or the contour line of model and the difference of target skeleton image outline in image segmentation software, confirm that its difference is less than 1 pixel, output file, as picture quality is too poor, image segmentation operations is loaded down with trivial details, then generate accurately some cloud or model as far as possible and export; The process of second step reverse-engineering, reverse or the positive reverse engineering software with variance analysis function is utilized to carry out the various process such as denoising, fairing, filling-up hole to the file of above-mentioned data format, exclude obvious bulk noise region and error profile, control forming model and put the maximum deviation of cloud or model at 0.5mm or below 0.1mm, generate cad model, enter the 3rd or the 4th step; As picture quality is too poor, output file is unsatisfied, then in this step, generate close normal model enter the 3rd step.The check verify of the 3rd step model and image, the model that second step generates, also its model file can be fed back to image segmentation software, the difference of contrast model profile and target anatomical structure image, and delete by regulating wheel profile, increase process such as covering plate pixel, illiteracy plate or model are revised, export and cover plate point cloud or model file, and proceed reverse-engineering process, this step can be carried out repeatedly, guarantee final model quality, it is too poor that this method is specially adapted to picture quality, the situation that artifact is too many; 4th classification of step model quality and mark, final its model construction quality of cad model model generated can give classification, and marks more or doubt places of process such as the large stretch of noise region removed; The design of the 5th step osteotomy guide plate, the model that 4th step exports imports in CAD or positive reverse engineering software, the design of osteotomy guide plate is carried out by flow process, the model of design can output to image segmentation software, understand the matching degree of its profile and skeleton image outline, as needs amendment, can revise further.6th step, 3D prints, and the model of design exports with full accuracy and enters 3D printing assistant software, establishes its putting position in software, the preferential precision ensureing bone-contact face, osteotomy groove, through hole, a model printing shaping as a whole of design.
The main advantage using the present invention to make rapid shaping model is, considers the various problems in osteotomy orthopaedy, ensure that precision, do not need to carry out x line perspective, simple and practical, applied widely, can be applicable to each bone of whole body.In a word, the present invention program, makes the clinical practice widely of 3D printing technique promote in order to possibility; And the crosschecking and variance analysis, model quality classification of model, then can improve model construction precision, include all links of loss in detail that likely causes in control, classification, mark more can help the precision of user model more clearly used and may need the place that should be noted that in art, its truth for individuality had estimate more accurately, understand, be convenient to quality analysis compare, there are laws to abide by, prevents from adulterating.
Accompanying drawing explanation
Fig. 1 is the orthopedic guide plate structure schematic diagram of osteotomy of the present invention;
Fig. 2 is the orthopedic guide plate of osteotomy and surface of bone bonding structure schematic diagram;
Fig. 3 is the orthopedic guide plate of mosaic osteotomy and target skeleton data model schematic diagram;
Fig. 4 is Custom Prosthesis registration holder;
Fig. 5 is universal registration holder.
Description of reference numerals
1, bone contact surface; 2, osteotomy groove and weak spot; The side of 3, aliging with bone surface mark; 4, through hole; 5, foramen lacerum; 6, Fillet Feature; 7, holder through hole; 8, the bone contact surface of Custom Prosthesis registration holder; 9, guide rail; 10, fixture block; 11, slide block; 12, screw screw; 13, Internal fixation pin draw-in groove 14, guide plate outer surface
Detailed description of the invention
Understand essence of the present invention better for ease of those of ordinary skill in the art, below the specific embodiment of the present invention is described in detail.
As Figure 1-5, the orthopedic guide plate of individuation customization osteotomy of the present invention, its bone contact work surface 1 is fitted with bone surface, the part that maybe skeleton can be in contact with it embeds in guide plate (Fig. 3), its outer surface 14 decides by with the thickness needed for each position of targeted bone contact surface, each side 3 of guide plate is controlled by the camber line of apophysis mark, utilizes each side to align with apophysis mark, prevents osteotomy guide plate placement location mistake, guide plate mid portion is provided with some osteotomy grooves 2, osteotomy groove 2 can pass through for goose saw or scroll saw, the two side ends of osteotomy is provided with the some through holes 4 be arranged in parallel with Osteotomy, these through-bore axis are positioned at same plane or Different Plane, this plane plane and determining residing for RA, number is determined by the number of osteotomy groove, the corresponding one or more through hole of each osteotomy groove, through hole is used for inserting the supporting Internal fixation pin of the design, or osseous pin, or cutting needle, or screw needle, for temporary fixed osteotomy guide plate and bone, after preventing osteotomy, the displacement of bone block affects follow-up osteotomy, and the Internal fixation pin pierced can utilize after osteotomy carry out bone stump to line registration, realize accurate monoplane or multilevel angle correction, prevent because inaccurate the causing that reset rotates, the operative failure that angulation displacement or angle correction inaccuracy etc. cause, and it is temporary fixed Internal fixation pin to be utilized after osteotomy completes to carry out, for carrying out para-position more accurately, supporting universal or Custom Prosthesis registration holder can be used, as Fig. 4, 5, the block one side that osteotomy groove 2 surrounds designs weak site, for osteotomy complete this block of retrotorsion destroy guide plate be convenient to guide plate removal and without the need to taking out Internal fixation pin, through hole according to need design foramen lacerum 5, for the guide plate that breaks, be convenient to guide plate removal and without the need to taking out Internal fixation pin.Guide plate also has Fillet Feature 6, prevents sharp edges damaged tissue.After osteotomy completes after removal guide plate, utilize Internal fixation pin temporary fixed, and internal fixation plate is installed, inside/outside fixed rack structure is fixed bone; The orthopedic guide plate of this osteotomy is set up mathematical model by reverse-engineering modeling technique and is carried out designing rear 3D printing acquisition.
Supporting its main body of Custom Prosthesis registration holder is bar or plate as shown in Figure 4, its middle position is provided with through hole 7, the arrangement of through hole decides according to the position of Internal fixation pin after osteotomy standard reset squeezed into according to osteotomy guide plate, all through-bore axis are in same plane and parallel, larger for bone surface amplitude, the one side 8 of bar can be designed to mate with surface of bone by osteotomy guide plate method for designing or the curved surface of approximate match, and making it press close to surface of bone does not better affect subsequent operation.This holder is used for the locking pin after osteotomy to fix, and utilizes locking pin bone block can be made to be on correct position to bone block tractive after fixing, and makes it obtain certain stability to be beneficial to operation below.Its processing mode of Custom Prosthesis registration holder is that 3D prints.
Its supporting universal registration holder is made up of guide rail 9, fixture block 10, slide block 11, screw as shown in Figure 5, guide rail 9 is made up of two identical parallel bars, its slide block 11 has groove can be installed on guide rail, there is screw centre, screw is had in the middle of fixture block 10, its bottom surface has draw-in groove to block Internal fixation pin, by the pressurization of screw, fixture block, slide block and guide rail are fixed, guide rail is utilized to make Internal fixation pin be fixed on same plane, make to arrive the effect object identical with Custom Prosthesis, due to slide block adjustable position, pressurize so the bone after to osteotomy can be realized.Due to fixation, this holder can be used as final external fixer and uses.
The orthopedic guide plate manufacture method of a kind of individuation customization osteotomy, comprises the following steps, first step data acquisition, Iamge Segmentation: utilize the equipment such as CT, MR to carry out scanning to living object skeleton and obtain image, and output image file or some cloud file, image file imports to image segmentation software as MIMICS, 3DDoctor etc., isolate set of pixels (illiteracy plate) or the profile of target anatomical structure, because skeleton set of pixels is often easier to extract, the outer contour of skeletal graph picture is often more clear, so in the illiteracy plate stage, the difference of covering web wheel profile and image outline can be checked, illiteracy web wheel profile and skeleton image outline maximum error must be made to be less than 1 pixel, to the illiteracy plate be separated in image segmentation software, output point cloud file or the file of a cloud can be presented as in reverse engineering software, or to covering plate computation model but not doing fairing noise abatement, export the file of threedimensional model, and for the more powerful image segmentation software of function, after can threedimensional model being calculated, recheck the deviation of model silhouette line and image, by revising the mode of contour line, correction model makes its contour line and skeleton image outline maximum error be less than 1 pixel output model again.Certainly, if picture quality is very poor, artifact is a lot, and Iamge Segmentation is more loaded down with trivial details, also can export second step to.
The process of second step reverse-engineering, utilizes reverse or positive reverse engineering software with variance analysis function as GEOMAGIC, IMAGEWARE, 3-matic etc., carries out the various process such as denoising, fairing, filling-up hole to the file of above-mentioned data format; The illiteracy plate point cloud exported as the first step or model comparatively satisfaction, variance analysis function is used to understand the model of reverse generation and the deviation of initial point cloud or model, according to variance analysis modified result model, after the smooth degree of model, the really degree of anatomical structure, deviation reach pre-provisioning request, generate CAD surface model or physical model outputs to the 3rd or the 4th step; Illiteracy plate as exported is comparatively coarse, and image segmentation software process is more loaded down with trivial details, in reverse engineering software, remove unnecessary tissue by manual, by various process such as denoising, fairing, filling-up holes, generates comparatively close to the model of object construction.
The check verify of the 3rd step model and image, the model that second step generates, also its model file can be fed back to image segmentation software, the difference of contrast model profile and target anatomical structure image, and delete by regulating wheel profile, increase process such as covering plate pixel, illiteracy plate or model are revised, export and cover plate point cloud or model file, and proceed reverse-engineering process, this step can be carried out repeatedly, guarantee final model quality, it is too poor that this method is specially adapted to picture quality, the situation that artifact is too many.
4th classification of step model quality and mark, final its model construction quality of cad model model generated can give classification, and marks more or doubt places of process such as the large stretch of noise region removed;
The design of the 5th step osteotomy guide plate, the model that second step or the 3rd step export imports in CAD software or positive reverse engineering software, as UG, solidwork, pro-e, 3-matic etc.: one) anatomic measurement is carried out according to clinical requirement, reference literature is to the definition of skeleton anterioposterior and lateral film, determine the sagittal plane of target skeleton mathematical model, horizontal plane, coronalplane, the definition of reference literature to bone fragments gives the segmentation of skeleton mathematical model, reference literature is to the definition of various anatomical angulation, mathematical model is set up various axis, and measure the size of anatomical angulation, reference literature defines normal anatomical angulation, determine the angle needing to correct, determine the position of osteotomy on mathematical model, plane residing for angle, if angle multiplely such as needs to correct coronalplane in Different Plane and also need to correct sagittal plane or horizontal plane angulation, the actual angulation in space can be obtained by combined projection, the projection of this angle on coronalplane is the angle that coronalplane needs to correct, projection on sagittal plane is the angle that sagittal plane needs to correct, projection is in the horizontal plane the RA on horizontal plane, two), according to the scope of Osteotomy determination guide plate, entity is generated, three) three-dimensional Boolean calculation or biasing surface generate guide plate with bone contact surface 1, recommend inserted design, four) according to the feature of bone contact surface, by cutting determine the bone contact surface of guide plate to side 14, five) according to body surface symbol comparatively obvious on anterioposterior and lateral film beyond bone surface contact surface, with the contour line of body surface symbol, cutting guide plate generates each side 3 of aliging with anatomic landmark of guide plate, six) osteotomy groove 2, seven is generated according to Osteotomy) design Kirschner wire through hole 4, eight) design foramen lacerum 5 and the weak site of osteotomy groove, nine) Fillet Feature 6 is designed.Ten) Bones morphology resetted after simulating osteotomy on computers also adopts same procedure to design supporting Custom Prosthesis registration holder.
6th step, 3D prints, and the model of design exports with full accuracy and enters 3D printing assistant software, prints in assistant software establish its putting position at 3D, the precision of preferential guarantee bone-contact face, osteotomy groove, through hole, a model printing shaping as a whole of design.3D prints and recommends the little mode of SLA equally accurate high deformation to guarantee that design keeps the shape.
The present invention can be applicable to each bone of whole body, and all belong to scope in the external form change not departing from the design's thought, the design feature of this patent can carry out combining, adjusting according to needs.
Printed material, print Unit-type sclection, printing precision change should within scope.Universal registration holder changes in material should within scope, adds the structures such as spring and carry out improvement and should belong to scope between universal slide block and fixture block.Custom Prosthesis registration holder also can make certain model and use as universal registration holder, should within scope.
The present invention uses the some softwares in image segmentation software, reverse or positive reverse engineering software, CAD software, quick forming fabri-cation software (3D print software) four class software, uses the change of software to belong to scope.
According to thought of the present invention, set up further optimized algorithm integrate each step exploitation software system should belong to scope.
Claims (5)
1. the orthopedic guide plate of individuation customization osteotomy, it is characterized in that, its guide plate osteotomy its work surface of orthopedic guide plate and bone surface are fitted, the part that maybe skeleton can be in contact with it embeds in guide plate, its outer surface decides by with the thickness needed for each position of targeted bone contact surface, each side of guide plate is controlled by the camber line of apophysis mark, utilizes each side to align with apophysis mark, prevents osteotomy guide plate placement location mistake, guide plate mid portion is provided with some osteotomy grooves, osteotomy groove can pass through for goose saw or scroll saw, the two side ends of osteotomy is provided with the some through holes be arranged in parallel with Osteotomy, these through-bore axis are positioned at same plane or Different Plane, this plane plane and determining residing for RA, number is determined by the number of osteotomy groove, the corresponding one or more through hole of each osteotomy groove, through hole is used for inserting the supporting Internal fixation pin of the design, or osseous pin, or cutting needle, or screw needle, for temporary fixed osteotomy guide plate and bone, after preventing osteotomy, the displacement of bone block affects follow-up osteotomy, and the Internal fixation pin pierced can utilize after osteotomy carry out bone stump to line registration, realize accurate monoplane or multilevel angle correction, prevent because inaccurate the causing that reset rotates, the operative failure that angulation displacement or angle correction inaccuracy cause, and it is temporary fixed Internal fixation pin to be utilized after osteotomy completes to carry out, for carrying out para-position more accurately, supporting universal or Custom Prosthesis registration holder can be used, the block one side that osteotomy groove surrounds designs weak site, for osteotomy complete this block of retrotorsion destroy guide plate be convenient to guide plate removal and without the need to taking out Internal fixation pin, through hole according to need design foramen lacerum, for the guide plate that breaks, be convenient to guide plate removal and without the need to taking out Internal fixation pin, this guide plate also has Fillet Feature, prevents sharp edges damaged tissue, after osteotomy completes after removal guide plate, utilize Internal fixation pin temporary fixed, and internal fixation plate is installed, inside and outside fixed rack structure is fixed bone, the orthopedic guide plate of this osteotomy is set up mathematical model by reverse-engineering modeling technique and is carried out designing rear 3D printing acquisition.
2. the orthopedic guide plate of individuation customization osteotomy according to right 1, it is characterized in that: its supporting Custom Prosthesis registration retainer body is bar or plate, its middle position is provided with through hole, the arrangement of through hole decides according to the position of Internal fixation pin after osteotomy standard reset squeezed into according to osteotomy guide plate, all through-bore axis are in same plane and parallel, larger for bone surface amplitude, the one side of bar can be designed to mate with surface of bone by osteotomy guide plate method for designing or the curved surface of approximate match, and making it press close to surface of bone does not better affect subsequent operation; This holder is used for the locking pin after osteotomy to fix, and utilizes locking pin bone block can be made to be on correct position to bone block tractive after fixing, and makes it obtain certain stability to be beneficial to operation below; Its processing mode of Custom Prosthesis registration holder is that 3D prints.
3. the orthopedic guide plate of individuation customization osteotomy according to right 1, it is characterized in that: its supporting universal registration holder is by guide rail, slide block, fixture block, screw forms, guide rail is made up of two identical parallel bars, its slide block has groove can be installed on guide rail, there is screw centre, screw is had in the middle of fixture block, its bottom surface has draw-in groove to block Internal fixation pin, by the pressurization of screw by fixture block, slide block and guide rail are fixed, guide rail is utilized to make Internal fixation pin be fixed on same plane, make to arrive the effect object identical with Custom Prosthesis, due to slide block adjustable position, so the bone after to osteotomy can be realized to pressurize, due to fixation, this holder can be used as final external fixer and uses.
4. the manufacture method of the orthopedic guide plate of individuation customization osteotomy, it is characterized in that, its manufacture method flow process: first by reverse Engineering Technology, the mathematical model that modeling obtains skeleton is carried out to target skeleton, and measure the orthopedic position of wish osteotomy, osteotomy angle, angle place plane; Then, design each face of guide plate, osteotomy groove, through hole, foramen lacerum, Fillet Feature successively according to these osteotomy parameters, finally carry out 3d printing; Specifically comprise the following steps; First step data acquisition, Iamge Segmentation obtain some cloud or the model data of target, and repeatedly confirm to cover plate or the contour line of model and the difference of target skeleton image outline in image segmentation software, confirm that its difference is less than 1 pixel, output file, as picture quality is too poor, image segmentation operations is loaded down with trivial details, then generate accurately some cloud or model as far as possible and export; The process of second step reverse-engineering, reverse or the positive reverse engineering software with variance analysis function is utilized to carry out denoising, fairing, the various process of filling-up hole to the file of above-mentioned data format, exclude obvious bulk noise region and error profile, control forming model and put the maximum deviation of cloud or model at 0.5mm or below 0.1mm, generate cad model, enter the 3rd or the 4th step; As picture quality is too poor, output file is unsatisfied, then in this step, generate close normal model enter the 3rd step; The check verify of the 3rd step model and image, the model that second step generates, also its model file can be fed back to image segmentation software, the difference of contrast model profile and target anatomical structure image, and delete by regulating wheel profile, increase process such as covering plate pixel, illiteracy plate or model are revised, export and cover plate point cloud or model file, and proceed reverse-engineering process, this step can be carried out repeatedly, guarantee final model quality, it is too poor that this method is specially adapted to picture quality, the situation that artifact is too many; 4th classification of step model quality and mark, final its model construction quality of cad model model generated can give classification, and marks more or doubt places of process such as the large stretch of noise region removed; The design of the 5th step osteotomy guide plate, the model that 4th step exports imports in CAD or positive reverse engineering software, the design of osteotomy guide plate is carried out by flow process, the model of design can output to image segmentation software, contrast the matching degree of its profile and skeleton image outline, as needs amendment, can revise further; 6th step 3D prints, and the model of design exports with full accuracy and enters 3D printing assistant software, establishes its putting position in software, the preferential precision ensureing bone-contact face, osteotomy groove, through hole, a model printing shaping as a whole of design.
5. according to right 4, a kind of individuation customizes the manufacture method of the orthopedic guide plate of osteotomy, it is characterized in that: model is set up content measuring method and adopted: reference literature is to the definition of skeleton anterioposterior and lateral film, determine the sagittal plane of target skeleton mathematical model, horizontal plane, coronalplane, the definition of reference literature to bone fragments gives the segmentation of skeleton mathematical model, reference literature is to the definition of various anatomical angulation, mathematical model is set up various axis, and measure the size of anatomical angulation, reference literature defines normal anatomical angulation, determine the angle needing to correct, determine the position of osteotomy on mathematical model, plane residing for angle, if angle multiplely such as needs to correct coronalplane in Different Plane and also need to correct sagittal plane or horizontal plane angulation, the actual angulation in space can be obtained by combined projection, the projection of this angle on coronalplane is the angle that coronalplane needs to correct, projection on sagittal plane is the angle that sagittal plane needs to correct, projection is in the horizontal plane the RA on horizontal plane.
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| CN107361815A (en) * | 2017-08-02 | 2017-11-21 | 张永飞 | A kind of orthopedic guide plate of osteotomy and its manufacture method |
| CN110559066A (en) * | 2019-10-07 | 2019-12-13 | 丁浩男 | Fixing support device with auxiliary fracture reduction function |
| CN114098969A (en) * | 2022-01-27 | 2022-03-01 | 北京威高智慧科技有限公司 | Osteotomy diagnostic system, osteotomy diagnostic method, device and medium |
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| CN114098969B (en) * | 2022-01-27 | 2022-05-06 | 北京威高智慧科技有限公司 | Osteotomy diagnostic system, osteotomy diagnostic method, device and medium |
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