CN108831271A - A kind of clinical oral simulation teching system and method - Google Patents
A kind of clinical oral simulation teching system and method Download PDFInfo
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- CN108831271A CN108831271A CN201810829115.XA CN201810829115A CN108831271A CN 108831271 A CN108831271 A CN 108831271A CN 201810829115 A CN201810829115 A CN 201810829115A CN 108831271 A CN108831271 A CN 108831271A
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
- G09B23/28—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for medicine
- G09B23/283—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for medicine for dentistry or oral hygiene
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B9/00—Simulators for teaching or training purposes
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Abstract
The invention belongs to the field of medical instrument technology, a kind of clinical oral simulation teching system and method is disclosed, is made of resilient cushion, bracket, rotating disk, multi-media display, elevation mount, rotating device, emulational head model, emulation oral cavity, emulation tooth, succession axis, bolt, laboratory table, high low speed air suction type collection device, multipurpose spray gun, instrument tray, roller, pedestal.Multi-media display on the rotating pan place by face, rotating disk is above bracket, there are elevation mount, rotating device below emulational head model, there are succession axis, bolt below elevation mount, bolt is above laboratory table, high low speed air suction type collection device, multipurpose spray gun, instrument tray are placed inside laboratory table, and affiliated roller is above pedestal.The present invention is by design of Simulation, and simple and reliable for structure, whole manufacturing cost is not high, while student being made to carry out the study of oral cavity and dental treatment technology in environment very true to nature, and behaviour's property done is strong, can significantly improve the technical level of student.
Description
Technical field
The invention belongs to the field of medical instrument technology more particularly to a kind of clinical oral simulation teching system and methods.
Background technique
Currently, the training of the practitioner of China's major part clinical oral treatment, mostly or utilizes model or Isolated Tooth,
The operation of clinical tutor is observed and repeated to carry out operation study.Students can not truly experience patient body position, in oral cavity
Crawl space and hard and soft tissue etc. practical operation bring is influenced.Enter clinic in this case, can find at once
The phenomenon that greatest differences between the operation of mouth external model and clinical practice, appearance dare not carry out clinical manipulation, lead to clinical manipulation
Level improves slow.And existing emulational head model mostly be a head model, student need handheld head mould carry out study and
Operation, simulation quality is not strong, can not imitate true patient body position, student needs could really in the operation of real actual clinical
Various technologies are grasped, very big risk is brought to patient.
In conclusion problem of the existing technology is:
(1) students can not truly experience patient body position, intraoral crawl space and hard and soft tissue etc. to reality
Border, which operates bring, to be influenced.Enter clinic in this case, it can be at once between the operation of discovery mouth external model and clinical practice
The phenomenon that greatest differences, appearance dare not carry out clinical manipulation, causes clinical manipulation level to improve slow.And existing emulational head model
Only a head model, student need handheld head mould to learn and operate mostly, and simulation quality is not strong, can not imitate true
Patient body position, LED display brightness used at present and coloration are poor, more affect the learning effect of students.
(2) the spraying uniformity of multipurpose spray gun used at present is poor, and spraying unevenly affects student and is to simulation
The correct utilization of system, it is difficult to be emulated.
(3) load of resilient cushion can not be determined, and produce security risk for subsequent use.
Summary of the invention
In view of the problems of the existing technology, the present invention provides a kind of clinical oral simulation teching system and methods.
The invention is realized in this way a kind of clinical oral simulation teching method, the clinical oral simulation teching method
Guarantee that emulational head model is adjusted to any angle by elevation mount;
By multi-media display it is strictly according to the facts the phenomenon that reflecting cavity interior, pass through and adjust the height that roller adjusts laboratory table
It is low;
The display mathematical model of LED display is in the multi-media display:The chromaticity coordinates calculation formula of LED, X, Y, Z
For tristimulus values, t is fluorescent lifetime, and when LED generates gray level by pulsewidth modulation, fluorescent lifetime t determines gray level size:
There is linear relationship relevant to time t between gray level and XYZ tristimulus values, when the total gray scale of LED display
When grade series is N, XYZ tristimulus values corresponding to each gray level step-length " 1 " is:
When the red, green, blue LED gray level that shines is respectively m, when n, k, corresponding XYZ tristimulus values is:
Further, the 2D mathematical model of the multipurpose spray gun of the clinical oral simulation teching method is:Burners Positions and
Posture may be defined as a sextuple time vector function in fixed cartesian coordinate system OXYZ:A (t)=(p (t), o
(t))T, wherein p (t)=(Px(t),Py(t),Pz(t))TIndicate position of the spray gun relative to fixed Cartesian coordinates OXYZIndicate angle of the spray gun relative to OXYZ axis, it is special according to spraying
Point, what the section for the spray torch that gun slot is formed was typically round, and the spray torch shape that coating layer thickness is sprayed in isotropism, spray gun
It is cone,For circular cone subtended angle, h is distance of the spray gun to plane, and R is the spraying radius in plane, and r is a point Q in plane
With a distance from spray gun central projection point, θ is the line of Q point and spray gun and the angle of spray gun central axes;Coating accumulation speed in plane
Rate is:
G, G=f (r, h);
Obtain the expression formula of G:
Wherein, A is constant.
Further, the material of the resilient cushion of the clinical oral simulation teching method is rubber, rubber resilient cushion
Finite element model is:Rubber material is incompressible.It is isotropism under small strain state;Isotropism incompressible material
Strain energy function W expressed with following formula:
I in formula1And I2For strain invariant;Each single item is all (I1- 3) and (I2- 3) power function;Select (I1- 3) and
(I2- 3) I is not had to1And I2It is in order to which in zero strain, W will disappear automatically.
Further, the image de-noising method of the multi-media display includes:
(1) it is directed to Y=X+N additive noise iconic model, using TV regularization objective function:
In formula, Y ∈ RnFor the original image signal of acquisition, X is the image containing multiplicative noise of parked, λ1For regularization ginseng
Number;
Wherein, n is picture altitude, and m is picture traverse;
The gradient descent flow equation of TV regularization objective function is:
It enables
Then:
In formula, div is divergence operator,For gradient operator;Signal X can be restored using the explicit difference scheme of total variation model;
The sparsity constraints of image after denoising, the removal of multiplicative noise is expressed as:
Wherein, X is the image removed after additive noise, and u is final denoising image, and W is discrete wavelet base, and x is denoising figure
As the sparse coefficient on wavelet basis, λ2For regularization parameter;Corresponding gradient descent flow equation is:
Another object of the present invention is to provide a kind of clinical oral moulds for realizing the clinical oral simulation teching method
The resilient cushion of quasi- tutoring system, the clinical oral simulation teching system is connect by screw thread with bracket, and rotating disk passes through screw thread
Connect with bracket, multi-media display connect by screw thread with rotating disk, emulational head model passes through rotating device and elevation mount company
It connects, elevation mount is connect by cutting ferrule with emulation tooth by screw thread with succession axis connection, emulation oral cavity.
Further, the bolt of the clinical oral simulation teching system is connect by screw thread with laboratory table, high low speed air-breathing
Formula collection device, multipurpose spray gun, instrument tray are connect by cutting ferrule with laboratory table, and roller is connect by cutting ferrule with pedestal, institute
Pedestal is stated to connect by screw thread with resilient cushion.
Advantages of the present invention and good effect are:(1) the clinical oral simulation teching system is whole to tie by design of Simulation
Structure is simple and reliable, and whole manufacturing cost is not high, while student being allowed to carry out oral cavity and dentistry in environment very true to nature
The study for the treatment of technology, behaviour's property done is strong, can significantly improve the technical level of student, pass through display display color
The foundation of mathematical model, color domain are corrected, and so that the brightness of display screen and coloration is all had significantly improving for consistency, are mentioned
The high learning effect of student.
(2) effective to improve to the foundation on cylindrical surface and circular conical surface and plane intersection spray gun track optimization object function
The uniformity of coating, makes the student be able to carry out the emulation of high quality.
(3) foundation for passing through Rubber shock-absorbing pad model, can accurately calculate the numerical value of resilient cushion load, it is determined that damping
The basic law for padding load, can correctly use device, improve the safety coefficient of device.
(4), compared with total variation goes additive noise method, this method treated image smoothing regional average value and standard deviation
Than averagely improving 10.9%, details area Laplce's gradient-norm averagely improves 15.6%.The result shows that:Not only effectively filter
In addition to the mixed noise of Microfocus X-ray radioscopic image, and image detail feature is preferably remained, can satisfy clinical oral mould
Requirement of the quasi- teaching circuit Inner Defect Testing to Image Smoothness and resolution detail.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of clinical oral simulation teching system provided in an embodiment of the present invention;
In figure:1, resilient cushion;2 brackets;3, rotating disk;4, multi-media display;5, elevation mount;6, rotating device;7,
Emulational head model;8, oral cavity is emulated;9, tooth is emulated;10, axis is passed on;11, bolt;12, laboratory table;13, high low speed air suction type is collected
Device;14, multipurpose spray gun;15, instrument tray;16, roller;17, pedestal.
Specific embodiment
In order to further understand the content, features and effects of the present invention, the following examples are hereby given, and cooperate attached drawing
Detailed description are as follows.
Structure of the invention is explained in detail with reference to the accompanying drawing.
As shown in Figure 1, the resilient cushion 1 of clinical oral simulation teching system provided in an embodiment of the present invention passes through screw thread and branch
Frame 2 connects, and the rotating disk 3 is connect by screw thread with bracket 2, the multi-media display 4 is connected by screw thread and rotating disk 3
It connects, the emulational head model 7 is connect by rotating device 6 with elevation mount 5, and the elevation mount 5 passes through screw thread and succession axis 10
Connection, the emulation oral cavity 8 are connect by cutting ferrule with emulation tooth 9, and the bolt 11 is connect by screw thread with laboratory table 12, described
High low speed air suction type collection device 13, multipurpose spray gun 14, instrument tray 15 are connect by cutting ferrule with laboratory table 12, the roller
16 are connect by cutting ferrule with pedestal 17, and the pedestal 17 is connect by screw thread with resilient cushion 1.
The display mathematical model of LED display is in multi-media display of the present invention:The chromaticity coordinates calculation formula of LED, X,
Y, Z is tristimulus values, and t is fluorescent lifetime, and when LED generates gray level by pulsewidth modulation, fluorescent lifetime t determines that gray level is big
It is small:
There is linear relationship relevant to time t between gray level and XYZ tristimulus values, when the total gray scale of LED display
When grade series is N, XYZ tristimulus values corresponding to each gray level step-length " 1 " is:
When the red, green, blue LED gray level that shines is respectively m, when n, k, corresponding XYZ tristimulus values is:
Further, the 2D mathematical model of the multipurpose spray gun of the clinical oral simulation teching method is:Burners Positions and
Posture may be defined as a sextuple time vector function in fixed cartesian coordinate system OXYZ:A (t)=(p (t), o
(t))T, wherein p (t)=(Px(t),Py(t),Pz(t))TIndicate position of the spray gun relative to fixed Cartesian coordinates OXYZIndicate angle of the spray gun relative to OXYZ axis, it is special according to spraying
Point, what the section for the spray torch that gun slot is formed was typically round, and the spray torch shape that coating layer thickness is sprayed in isotropism, spray gun
It is cone,For circular cone subtended angle, h is distance of the spray gun to plane, and R is the spraying radius in plane, and r is a point Q in plane
With a distance from spray gun central projection point, θ is the line of Q point and spray gun and the angle of spray gun central axes;Coating accumulation speed in plane
Rate is:
G, G=f (r, h);
Obtain the expression formula of G:
Wherein, A is constant.
Further, the material of the resilient cushion of the clinical oral simulation teching method is rubber, rubber resilient cushion
Finite element model is:Rubber material is incompressible.It is isotropism under small strain state;Isotropism incompressible material
Strain energy function W expressed with following formula:
I in formula1And I2For strain invariant;Each single item is all (I1- 3) and (I2- 3) power function;Select (I1- 3) and
(I2- 3) I is not had to1And I2It is in order to which in zero strain, W will disappear automatically.
Further, the image de-noising method of the multi-media display includes:
(1) it is directed to Y=X+N additive noise iconic model, using TV regularization objective function:
In formula, Y ∈ RnFor the original image signal of acquisition, X is the image containing multiplicative noise of parked, λ1For regularization ginseng
Number;
Wherein, n is picture altitude, and m is picture traverse;
The gradient descent flow equation of TV regularization objective function is:
It enables
Then:
In formula, div is divergence operator,For gradient operator;It can restore to believe using the explicit difference scheme of total variation model
Number X;
The sparsity constraints of image after denoising, the removal of multiplicative noise is expressed as:
Wherein, X is the image removed after additive noise, and u is final denoising image, and W is discrete wavelet base, and x is denoising figure
As the sparse coefficient on wavelet basis, λ2For regularization parameter;Corresponding gradient descent flow equation is:
The working principle of the invention is:The clinical oral simulation teching system is can guarantee by elevation mount 5 when use
Emulational head model 7 is adjusted to any angle, and behaviour's property done is strong, and emulation oral cavity 8 and true oral cavity are without too big difference.It is aobvious by multimedia
Show that device 4 can be strictly according to the facts the phenomenon that reflecting cavity interior, pass through the height for adjusting the adjustable laboratory table of roller 16.
The above is only the preferred embodiments of the present invention, and is not intended to limit the present invention in any form,
Any simple modification made to the above embodiment according to the technical essence of the invention, equivalent variations and modification, belong to
In the range of technical solution of the present invention.
Claims (6)
1. a kind of clinical oral simulation teching method, which is characterized in that the clinical oral simulation teching method is filled by pitching
It sets and guarantees that emulational head model is adjusted to any angle;
By multi-media display it is strictly according to the facts the phenomenon that reflecting cavity interior, pass through and adjust the height that roller adjusts laboratory table;
The display mathematical model of LED display is in the multi-media display:The chromaticity coordinates calculation formula of LED, X, Y, Z tri-
Values, t are fluorescent lifetime, and when LED generates gray level by pulsewidth modulation, fluorescent lifetime t determines gray level size:
There is linear relationship relevant to time t between gray level and XYZ tristimulus values, when the total gray level grade of LED display
When number is N, XYZ tristimulus values corresponding to each gray level step-length " 1 " is:
When the red, green, blue LED gray level that shines is respectively m, when n, k, corresponding XYZ tristimulus values is:
2. clinical oral simulation teching method as described in claim 1, which is characterized in that the clinical oral simulation teching side
The 2D mathematical model of the multipurpose spray gun of method is:Burners Positions and posture may be defined as in fixed cartesian coordinate system OXYZ
One sextuple time vector function:A (t)=(p (t), o (t))T, wherein p (t)=(Px(t),Py(t),Pz(t))TIndicate spray
Position of the rifle relative to fixed Cartesian coordinates OXYZTable
Show angle of the spray gun relative to OXYZ axis, according to spraying feature, what the section of the spray torch of gun slot formation was typically round, and apply
For thickness degree in isotropism, the spray torch shape that spray gun sprays is cone,For circular cone subtended angle, h is distance of the spray gun to plane,
R is the spraying radius in plane, r be in plane a point Q with a distance from spray gun central projection point, θ be Q point and spray gun line with
The angle of spray gun central axes;Coating cumulative speed is in plane:
G, G=f (r, A);
Obtain the expression formula of G:
Wherein, A is constant.
3. clinical oral simulation teching method as described in claim 1, which is characterized in that the clinical oral simulation teching side
The material of the resilient cushion of method is rubber, and the finite element model of rubber resilient cushion is:Rubber material is incompressible.It is answered small
It is isotropism under change state;The strain energy function W of isotropism incompressible material is expressed with following formula:
I in formula1And I2For strain invariant;Each single item is all (I1- 3) and (I2- 3) power function;Select (I1- 3) and (I2-3)
And I is not had to1And I2It is in order to which in zero strain, W will disappear automatically.
4. clinical oral simulation teching method as described in claim 1, which is characterized in that the image of the multi-media display
Denoising method includes:
(1) it is directed to Y=X+N additive noise iconic model, using TV regularization objective function:
In formula, Y ∈ RnFor the original image signal of acquisition, X is the image containing multiplicative noise of parked, λ1For regularization parameter;
Wherein, n is picture altitude, and m is picture traverse;
The gradient descent flow equation of TV regularization objective function is:
It enables
Then:
In formula, div is divergence operator,For gradient operator;Signal X can be restored using the explicit difference scheme of total variation model;
The sparsity constraints of image after denoising, the removal of multiplicative noise is expressed as:
Wherein, X is the image removed after additive noise, and u is final denoising image, and W is discrete wavelet base, and x is that denoising image exists
Sparse coefficient on wavelet basis, λ2For regularization parameter;Corresponding gradient descent flow equation is:
5. a kind of clinical oral simulation teching system for realizing clinical oral simulation teching method described in claim 1, feature
It is, the resilient cushion of the clinical oral simulation teching system is connect by screw thread with bracket, and rotating disk passes through screw thread and bracket
Connection, multi-media display are connect by screw thread with rotating disk, and emulational head model is connect by rotating device with elevation mount, pitching
Device is connect by cutting ferrule with emulation tooth by screw thread with succession axis connection, emulation oral cavity.
6. clinical oral simulation teching system as claimed in claim 5, which is characterized in that clinical oral simulation teching system
The bolt of system is connect by screw thread with laboratory table, and high low speed air suction type collection device, multipurpose spray gun, instrument tray pass through cutting ferrule
It is connect with laboratory table, roller is connect by cutting ferrule with pedestal, and the pedestal is connect by screw thread with resilient cushion.
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CN109620143A (en) * | 2018-11-22 | 2019-04-16 | 张程程 | Adjust the measuring method of osteoclast cell activation mechanism in Bone tumour |
CN109727671A (en) * | 2018-12-28 | 2019-05-07 | 广东省心血管病研究所 | A kind of information analysis system and analysis method for identifying hematopoietic stem cell transplantation effect |
CN111223347A (en) * | 2018-11-27 | 2020-06-02 | 医百科技股份有限公司 | Clinical dental education training system and method |
CN111627307A (en) * | 2020-07-02 | 2020-09-04 | 海南医学院第二附属医院 | Mirror image training device for stomatology teaching |
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CN109620143A (en) * | 2018-11-22 | 2019-04-16 | 张程程 | Adjust the measuring method of osteoclast cell activation mechanism in Bone tumour |
CN111223347A (en) * | 2018-11-27 | 2020-06-02 | 医百科技股份有限公司 | Clinical dental education training system and method |
CN109727671A (en) * | 2018-12-28 | 2019-05-07 | 广东省心血管病研究所 | A kind of information analysis system and analysis method for identifying hematopoietic stem cell transplantation effect |
CN109727671B (en) * | 2018-12-28 | 2021-07-09 | 广东省心血管病研究所 | Information analysis system and method for identifying hematopoietic stem cell transplantation effect |
CN111627307A (en) * | 2020-07-02 | 2020-09-04 | 海南医学院第二附属医院 | Mirror image training device for stomatology teaching |
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