CN205964146U - A three -dimensional fixed plate for repairing fracture is jaw down - Google Patents
A three -dimensional fixed plate for repairing fracture is jaw down Download PDFInfo
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- CN205964146U CN205964146U CN201620698417.4U CN201620698417U CN205964146U CN 205964146 U CN205964146 U CN 205964146U CN 201620698417 U CN201620698417 U CN 201620698417U CN 205964146 U CN205964146 U CN 205964146U
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- connecting plate
- connection board
- fracture
- mandibular
- auxiliary connection
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- 238000009434 installation Methods 0.000 claims abstract description 22
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000010936 titanium Substances 0.000 claims abstract description 15
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 15
- 210000004373 mandible Anatomy 0.000 claims description 33
- 210000000988 bone and bone Anatomy 0.000 claims description 15
- 210000003484 anatomy Anatomy 0.000 claims description 3
- 208000010392 Bone Fractures Diseases 0.000 abstract description 44
- 206010017076 Fracture Diseases 0.000 abstract description 44
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 206010023149 Jaw fracture Diseases 0.000 abstract 2
- 230000008878 coupling Effects 0.000 abstract 1
- 238000010168 coupling process Methods 0.000 abstract 1
- 238000005859 coupling reaction Methods 0.000 abstract 1
- 238000012423 maintenance Methods 0.000 abstract 1
- 238000009826 distribution Methods 0.000 description 14
- 210000004283 incisor Anatomy 0.000 description 7
- 210000003205 muscle Anatomy 0.000 description 7
- 238000013461 design Methods 0.000 description 6
- 238000004088 simulation Methods 0.000 description 6
- 210000000515 tooth Anatomy 0.000 description 5
- 238000010146 3D printing Methods 0.000 description 4
- 230000037182 bone density Effects 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910001069 Ti alloy Inorganic materials 0.000 description 2
- 238000005422 blasting Methods 0.000 description 2
- 238000002224 dissection Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 210000001847 jaw Anatomy 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 210000004871 mandibular tooth Anatomy 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 241000894007 species Species 0.000 description 2
- 208000000059 Dyspnea Diseases 0.000 description 1
- 206010013975 Dyspnoeas Diseases 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 206010039203 Road traffic accident Diseases 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000003759 clinical diagnosis Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001815 facial effect Effects 0.000 description 1
- 230000035876 healing Effects 0.000 description 1
- 235000008216 herbs Nutrition 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002980 postoperative effect Effects 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 210000004872 soft tissue Anatomy 0.000 description 1
- 238000010561 standard procedure Methods 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
Landscapes
- Prostheses (AREA)
- Surgical Instruments (AREA)
Abstract
A three -dimensional fixed plate for repairing fracture is jaw down waits to restore main connecting plate and many auxiliary connection board of jaw fracture department down including being used for connecting, main connecting plate upper edge connection board move towards to distribute and a plurality ofly be used for fixing that the owner on the jaw installs the through -hole under waiting to restore, auxiliary connection board set up to be in main connecting plate side, and auxiliary connection board on be equipped with and be used for fixing the supplementary installation through -hole on the jaw under, main connecting plate auxiliary connection board all with wait to restore down jaw and treat restoration department surface and laminate, main connecting plate, auxiliary connection board through the titanium nail with wait to restore jaw rigid coupling down. The beneficial effects of the utility model are that: three -dimensional fixed plate can reach good matching with patient's skeleton to an accuracy nature that the maintenance that is good is done all can and stability, thus fixation treatment in the jaw fracture is strengthened under improving is provided.
Description
Technical field
The utility model is related to a kind of three-dimensional fixed plate for repairing fracture mandibular.
Background technology
Mandibular is that in human body Maxillary region bone, volume and area are all maximum, is also the facial skeleton of uniquely energy activity,
And it is in lower face, therefore it is highly susceptible to multidirectional violence impact when suffering from the accidental shocks such as traffic accident.
On the other hand, mandibular is connected each other with cranium jawbone by muscle, lacks strong support, therefore mandibular is when being impacted
Easily fracture, its incidence accounts for the 72% about of maxillofacial fracture incidence.The geometry of mandibular and physiological structure determine
Zones of different occurs fracture probability different, and wherein neck of condyle portion, angle of mandible and mandibular body are that fracture easily sends out region.Fracture of mandible
Afterwards, the equilibrium relation of muscle is destroyed, and fracture segment is shifted over because of the tractive force by masseter different directions, causes denture
, there is expiratory dyspnea it is necessary to immediately be given treatment in deformation, occlusal disturbance and masticatory function obstacle, or even clogs airways.
Fracture of mandible repairing and treating mainly includes resetting and fixing, its object is to restoration and reconstruction and is correctly engaged pass
System, and recover complete mandibular function as early as possible.Reduction of mandible fracture fixing means includes manipulative reduction, intermaxillary traction or cranium
The expectant treatment of the non-open types such as jaw traction is it is also possible to carry out open reset and fixing by operation.Open reset and solid
Surely it is that the soft tissues such as skin and muscle are opened by surgical operation, exposes the bone of fracture site, each bone section is resetted
Afterwards, fixing using the fixing titanium plate of porous and one group of screw (hereinafter referred to as fixed system), treat postoperative six months about fracture sites
After healing, fixing device is taken out by second operation.In open repositioning method, current Titanic micro-plates (Rigid Internal
Fixation, RIF) have become as the first-selection treating fracture of mandible and standard method.By implementing RIF operation, patient can
Retrieve stable mandibular, and recovered part meshing functionss at once after surgery.
In the RIF of fracture of mandible treats, current doctor, mainly according to clinical diagnosis and Couple herbs, designs fixation side
Formula is simultaneously performed the operation from suitably fixing titanium plate, is fixed using different fixed forms according to the fracture of different parts.
Fixing titanium plate used in fracture of mandible prosthesis includes compact board (Miniplate), minitype plate at present
(Microplate) and reconstruction plate (Reconstruction plate), it is middle-size and small-size and minitype plate has L-type, Y type, rice font etc.
There is standard-sized solid shape, reconstruction plate only has the long strip type of standard.All these plates are all two-dimentional, need in operation
Middle bending tool carries out scene and bends according to subjects bones' shape and fixing needs, extends operating time, and and patient
The laminating of bone face is undesirable, and the stress of bone is difficult to precise control, and fixed position is difficult to accurately determine and control simultaneously, makes solid
Determine nail and easily injure the important anatomy structure such as root of the tooth, mandible incisor.
If stressing conditions that can be according to mandibular under snap-in force, based on patient's its data, design true
Just there is the fixed system of 3D shape, and making full use of the high efficiency that cubic metal characters or patterns print, personalization can effectively improved
The stability of fixed system and the accuracy for the treatment of.
Content of the invention
In order to solve in the treatment of fracture of mandible Titanic micro-plates, doctor can only empirically select two-dimentional fixed system,
It cannot be guaranteed that itself and subjects bones' matched well are to provide the problem of good retention and stability, the utility model proposes one
Plant and can provide lower jaw bone fixation optimal force credit cloth and with patient's bone surface good fit for repairing fracture mandibular
Three-dimensional fixed plate.
Described in the utility model for repair fracture mandibular three-dimensional fixed plate it is characterised in that：Including for even
The main connecting plate and many auxiliary connection board at fracture of mandible is repaired in reception, and described main connecting plate moves towards along connecting plate
Distribution some for being fixed on epimandibular main installation through-hole to be repaired, described auxiliary connection board is arranged on described main company
Fishplate bar side, and described auxiliary connection board is provided with for being fixed on epimandibular auxiliary installation through-hole, described master
Connecting plate, described auxiliary connection board are all fitted with mandibular to be repaired place to be repaired outer surface, described main connecting plate, auxiliary
Connecting plate is followed closely affixed with mandibular to be repaired by titanium.
One end of described auxiliary connection board is integrally formed with described main connecting plate side, and the other end carries for fixing
In epimandibular auxiliary installation through-hole.
Described main connecting plate is fixed on fracture of mandible both sides to be repaired, described main connecting plate and institute by titanium nail
The important anatomy structure such as described mandible incisor need to be avoided in the auxiliary connection board fixed position stated.
Described main connecting plate is provided with several main installation through-holes, described main connecting plate is connected with many auxiliary and connects
Plate, described auxiliary connection board number is consistent with fractured bones hop count mesh, and institute's art auxiliary connection board is located at described main connection respectively
At main installation through-hole in the middle of plate.
Described main connecting plate is provided with 4 main installation through-holes, and described main connecting plate is connected with two auxiliary connection board,
Described auxiliary connection board is located at two main installation through-holes in the middle of described main connecting plate respectively.During use, will be entirely three-dimensional
Fixed plate is fitted at fracture of mandible to be repaired, and makes winner's connecting plate be located at the fracture of mandibular to be repaired, and
And the two ends of main connecting plate are located at the both sides of fracture respectively, auxiliary connection board is also respectively in both sides at fracture of mandible, then
Main connecting plate, auxiliary connection board are fixed on by lower jaw bone surface by titanium nail.
Three-dimensional fixing board manufacturing method for repairing fracture mandibular described in the utility model, comprises the following steps：
1) build the biomechanical model of standard mandibular, set up the stress envelope under subregional snap-in force, and then
Work out subregional fracture fixation principle：
(1) choose typical mandibular, obtain its CT data, it is obtained by Medical Image Processing and Model Reconstruction three-dimensional
Surface model (triangle gridding) and physical grid model (tetrahedral grid)；
(2) relation function according to the gray value on CT image and bone density, the bone calculating each voxel of mandibular is close
Angle value, and the calculating to voxel Young's modulus is completed according to the relation function of bone density and Young's modulus, and to physical grid mould
Type carries out material characteristic parameter assignment, obtains mandible model heterogeneous；
(3) muscle (masseter, musculus pterygoideus medialis, temporalis) of mandibular is reduced to one-dimensional spring, spring stiffness values are according to document
Parameter determination in data, spring connecting point in epimandibular tie point and points to the tie point on cranium jawbone for muscle；
(4) the upper back unit that two condyles are dashed forward is applied to limit the boundary constraint of six-freedom degree, different on mandibular
Tooth position (labial teeth area, backteeth area) plus normal occlusion power load, obtain mandibular biomechanical model, and carry out finite element simulation,
Obtain the maximum definitely distribution of principal stress of mandibular, thus obtaining the stress species (tension, compression) of zones of different；
(5) pass through SLS three-dimensional printing mandible model, set up the condition similar to finite element simulation, carry out experiment test,
Finite Element Stress distribution is verified and is revised；
(6) based on the maximum definitely principal stress Distribution value of subregion (neck of condyle, angle of mandible etc.), determine that this region is sent out
During raw fracture, fixing point should be arranged in the region of tension stress, and this is settled principle；
2) it is directed to mandibular to be reconstructed, obtain its CT data, carry out three-dimensional reconstruction；
3) according to fracture and form, by settled principle, consider to avoid the important dissection such as root of the tooth, mandible incisor simultaneously
Structure, determines the fixed position after resetting and number；
4) it is based on bone surface, design connects a series of porous plate three-dimensional structure of fixed positions, and its fixing hole presses standard
Orthopaedics fixing titanium nail is designed；
5) build mandibular biomechanical model in the same way, and include fixed system, carry out finite element simulation, root
According to the stress distribution of the mandibular obtaining and fixed system, fixed plate three-dimensional structure is modified.When necessary, can beat
Print off corresponding physical model and carry out test checking；
6) print SLM using cubic metal characters or patterns and three-dimensional printing is carried out to titanium alloy powder, obtain three-dimensional fixed plate prototype；
7) three-dimensional fixed plate is processed by shot blasting, obtaining can be with the three-dimensional fixed plate of clinical practice.
The beneficial effects of the utility model are：Compared with two-dimentional fixed system, the fixed system of personalized three-dimensional shape can
So that fixing titanium plate can reach matched well, thus providing good retention and stability, thus improving with subjects bones
The accuracy of fracture of mandible Titanic micro-plates treatment.
Brief description
Fig. 1 is mandibular biomechanical model rough schematic view of the present utility model, and wherein 11 is that musculus pterygoideus medialis simplifies spring,
12 is that temporalis simplifies spring, and 13 is that masseter simplifies spring, and 14 is snap-in force, and 15 is tension, and 16 is compression.
Fig. 2 is the maximum definitely distribution of principal stress figure of mandibular of the present utility model, and wherein 2 is that overall lower jaw bone stress divides
Cloth, 21 is right angle of mandible stress distribution, and 22 is bottom right jaw body stress distribution.
Fig. 3 is three-dimensional porous fixed connecting plate of the present utility model, and wherein 3 is main connecting plate, and 4 is auxiliary connection board, 31
It is main installation through-hole, 41 is auxiliary installation through-hole.
Fig. 4 is fracture of mandible model of the present utility model and fixed system, and wherein 5 is the mandibular having fracture, and 51 are
Mandible incisor.
Specific embodiment
Further illustrate the utility model below in conjunction with the accompanying drawings
Referring to the drawings：
The embodiment 1 three-dimensional fixed plate for repairing fracture mandibular described in the utility model, treats including for connecting
Repair the main connecting plate 3 at fracture of mandible and many auxiliary connection board 4, described main connecting plate 3 moves towards along connecting plate
Distribution some for being fixed on epimandibular main installation through-hole 31 to be repaired, described auxiliary connection board 4 is arranged on described
Main connecting plate 3 side, and described auxiliary connection board 4 is provided with for being fixed on epimandibular auxiliary installation through-hole 41,
Described main connecting plate 3, described auxiliary connection board 4 are all fitted with mandibular to be repaired place to be repaired outer surface, described master
Connecting plate 3, auxiliary connection board 4 are followed closely affixed with mandibular 5 to be repaired by titanium.
Described one end of auxiliary connection board 4 is integrally formed with described main connecting plate 3 side, and the other end carries for solid
It is scheduled on epimandibular auxiliary installation through-hole 41.
Described main connecting plate 3 is fixed on the mandibular to be repaired 5 fracture both sides avoiding mandible incisor 51 by titanium nail,
Described auxiliary connection board 4 end is fixed on to be avoided on the described mandibular to be repaired 5 of mandible incisor 51.
Described main connecting plate 3 is provided with 4 main installation through-holes 31, described main connecting plate 3 is connected with two auxiliary even
Fishplate bar 4, described auxiliary connection board 4 is located at two main installation through-holes 31 in the middle of described main connecting plate 3 respectively.
During use, whole three-dimensional fixed plate is fitted at fracture of mandible to be repaired, and makes winner's connecting plate position
In the fracture of mandibular to be repaired, and the two ends of main connecting plate are located at the both sides of fracture respectively, and auxiliary connection board also divides
It is listed in both sides at fracture of mandible, then main connecting plate, auxiliary connection board are fixed on by lower jaw bone surface by titanium nail.
The embodiment 2 three-dimensional fixing means for repairing fracture mandibular described in the utility model, comprises the following steps：
1) build the biomechanical model 1 of standard mandibular, set up stress distribution Fig. 2 under subregional snap-in force, enter
And work out subregional fracture fixation principle：
(1) choose typical mandibular, obtain its CT data, it is obtained by Medical Image Processing and Model Reconstruction three-dimensional
Surface model (triangle gridding) and physical grid model (tetrahedral grid)；
(2) relation function according to the gray value on CT image and bone density, the bone calculating each voxel of mandibular is close
Angle value, and the calculating to voxel Young's modulus is completed according to the relation function of bone density and Young's modulus, and to physical grid mould
Type carries out material characteristic parameter assignment, obtains mandible model heterogeneous；
(3) muscle (masseter, musculus pterygoideus medialis, temporalis) of mandibular is reduced to the one-dimensional spring (11,12,13) in Fig. 1, bullet
Spring rigidity value in epimandibular tie point and points to cranium for muscle according to the parameter determination in documents and materials, spring connecting point
Tie point on jawbone；
(4) the upper back unit that two condyles are dashed forward is applied to limit the boundary constraint of six-freedom degree, different on mandibular
Tooth position (labial teeth area, backteeth area) plus normal occlusion power load (in Fig. 1 14), obtain mandibular biomechanical model, and carry out
Finite element simulation, obtains the maximum absolute stress distribution 2 of the mandibular shown in Fig. 2, thus obtaining the stress species of zones of different
(tension, compression) such as 21,22；
(5) pass through SLS three-dimensional printing mandible model, set up the condition similar to finite element simulation, carry out experiment test,
Finite Element Stress distribution is verified and is revised；
(6) based on the absolute stress Distribution value of subregion (neck of condyle, angle of mandible etc.), determine to fracture in this region
When, fixing point should be arranged in the region of tension stress, and this is settled principle；
2) it is directed to mandibular to be reconstructed, obtain its CT data, carry out three-dimensional reconstruction；
3) according to fracture and form, by settled principle, consider to avoid the important dissection such as root of the tooth, mandible incisor simultaneously
Structure, determines the fixed position after resetting and number；
4) it is based on bone surface, design connects a series of porous plate three-dimensional structure of fixed positions, and its fixing hole presses standard
Orthopaedics fixing titanium nail is designed；
5) build mandibular biomechanical model in the same way, and include fixed system, carry out finite element simulation, root
According to the stress distribution of the mandibular obtaining and fixed system, fixed plate three-dimensional structure is modified；When necessary, can beat
Print off corresponding physical model and carry out test checking；
6) print SLM using cubic metal characters or patterns and three-dimensional printing is carried out to titanium alloy powder, obtain three-dimensional fixed plate prototype；
7) three-dimensional fixed plate is processed by shot blasting, obtaining can be with the three-dimensional fixed plate of clinical practice.
Content described in this specification embodiment is only enumerating of the way of realization to utility model design, and this practicality is new
The protection domain of type is not construed as being only limitted to the concrete form that embodiment is stated, protection domain of the present utility model also wraps
Include those skilled in the art according to the utility model design it is conceivable that equivalent technologies mean.
Claims (5)
1. be used for repair fracture mandibular three-dimensional fixed plate it is characterised in that：Including for connecting fracture of mandible to be repaired
Place main connecting plate and many auxiliary connection board, on described main connecting plate along connecting plate move towards be distributed some for being fixed on
Epimandibular main installation through-hole to be repaired, described auxiliary connection board is arranged on described main connecting plate side, and described
Auxiliary connection board be provided with for being fixed on epimandibular auxiliary installation through-hole, described main connecting plate, described auxiliary
Connecting plate is all fitted with mandibular to be repaired place to be repaired outer surface, described main connecting plate, auxiliary connection board by titanium nail with
Mandibular to be repaired is affixed.
2. the as claimed in claim 1 three-dimensional fixed plate being used for repairing fracture mandibular it is characterised in that：Described auxiliary is even
One end of fishplate bar is integrally formed with described main connecting plate side, and the other end carries and is used for being fixed on epimandibular auxiliary installation
Through hole.
3. the as claimed in claim 2 three-dimensional fixed plate being used for repairing fracture mandibular it is characterised in that：Described main connection
Plate is fixed on fracture of mandible both sides to be repaired, the fixation of described main connecting plate and described auxiliary connection board by titanium nail
The important anatomy structure of mandibular to be repaired is avoided in position.
4. the as claimed in claim 3 three-dimensional fixed plate being used for repairing fracture mandibular it is characterised in that：Described main connection
Plate is provided with several main installation through-holes, and described main connecting plate is connected with many auxiliary connection board, described auxiliary connection board
Number is consistent with fractured bones hop count mesh, and institute's art auxiliary connection board is located at main installation through-hole in the middle of described main connecting plate respectively.
5. the as claimed in claim 4 three-dimensional fixed plate being used for repairing fracture mandibular it is characterised in that：Described main connection
Plate is provided with 4 main installation through-holes, and described main connecting plate is connected with two auxiliary connection board, and described auxiliary connection board is respectively
At two main installation through-holes in the middle of described main connecting plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620698417.4U CN205964146U (en) | 2016-06-29 | 2016-06-29 | A three -dimensional fixed plate for repairing fracture is jaw down |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620698417.4U CN205964146U (en) | 2016-06-29 | 2016-06-29 | A three -dimensional fixed plate for repairing fracture is jaw down |
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| Publication Number | Publication Date |
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| CN205964146U true CN205964146U (en) | 2017-02-22 |
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| CN201620698417.4U Expired - Fee Related CN205964146U (en) | 2016-06-29 | 2016-06-29 | A three -dimensional fixed plate for repairing fracture is jaw down |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107680163A (en) * | 2017-09-30 | 2018-02-09 | 浙江工业大学 | A kind of preparation method and internal fixation plate of personalized 3D optimizations structure internal fixation plate |
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2016
- 2016-06-29 CN CN201620698417.4U patent/CN205964146U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107680163A (en) * | 2017-09-30 | 2018-02-09 | 浙江工业大学 | A kind of preparation method and internal fixation plate of personalized 3D optimizations structure internal fixation plate |
| CN107680163B (en) * | 2017-09-30 | 2023-09-26 | 浙江工业大学 | Manufacturing method of personalized 3D optimization structure internal fixing plate and internal fixing plate |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170222 Termination date: 20190629 |