CN208384886U - A kind of head simulation model - Google Patents
A kind of head simulation model Download PDFInfo
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- CN208384886U CN208384886U CN201721740681.0U CN201721740681U CN208384886U CN 208384886 U CN208384886 U CN 208384886U CN 201721740681 U CN201721740681 U CN 201721740681U CN 208384886 U CN208384886 U CN 208384886U
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- hemisphere
- hemispheroidal
- threaded hole
- simulation model
- placing groove
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Abstract
The utility model embodiment is related to a kind of head simulation model, comprising: the first hemisphere, the first hemispheroidal lower surface are provided with the first placing groove, are opened on spherical surface there are two fixing groove；The bottom end of fixing groove is provided with the first threaded hole between the first hemispheroidal lower surface；Second hemisphere, second hemispheroidal upper surface connects with the first hemispheroidal lower surface, upper surface is provided with the second placing groove, and when the first hemisphere is connected with the second hemisphere by upper and lower surfaces, the second placing groove and the first placing groove are connected to each other to form ionisation chamber placement space；The second threaded hole is provided on second hemisphere；Fixed screw, screw terminal are set in fixing groove, and the screw rod of fixed screw is threadedly coupled with the first threaded hole and the second threaded hole；Component is filled up, is set in fixing groove.The utility model, the organic glass or solid water of the similar performances such as equivalent atom ordinal number, density of material and the electron density of the head tissue for selecting and being modeled are easy to process as tissue substitute material.
Description
Technical field
The utility model relates to a kind of head simulation models, more particularly to one kind is for measuring eye lens personal dose equivalent
Head model.
Background technique
Currently, all there is radioactive substance occupational hazards for multiple work posts of a variety of industries, if safeguard procedures are improper, just
Potential danger may be caused by ionization radiation irradiation body.For example, dept. of radiology plays in hospital curative activity
Very important effect to human organ contrast examination or carries out radiotherapy using Diagnostic X-ray or CT, these check and
Treatment method is that clinician clarifies a diagnosis and effectively treatment provides effective foundation and guarantees, but leads to cataract, regeneration barrier
Impenetrability anaemia, even induce malignant tumour or leukaemia probability also due to the presence of ray and increase.
When thering are enough cells to be killed in organ or tissue or cannot normally be proliferated, it just will appear and clinically can
The damage that the reflection organ observed or function of organization lose, in the dose comparison hour of ionization radiation irradiation, this damage hair
Raw probability is minimum；When dosage reaches certain level (dose threshold value) or more, the probability of generation will increase sharply.More than dosage
Threshold value, body, which is damaged severity, to be increased with the increase of dosage.For the generation of this effect, although individual cells quilt
Radiation irradiation, which is killed, has random property, but when there is a large amount of cells to be killed, and the generation of effect is inevitable, therefore
This effect is referred to as deterministic effect.Eye lens is human body to most sensitive one of organ is radiated, according to International Atomic energy
The technical report of the mechanism/World Health Organization (IAEA/WHO), eye lens are suffered from including cataract by x ray irradiation x
The probability of eye disease can be significantly increased.For the generation for preventing deterministic effect, according to relevant regulations, to occupational exposure personnel
Dose limit as defined in individual, year equivalent dose, 150mSv suffered by eye lens；Age in 16 years old to 18 years old apprentice and student,
Year equivalent dose, 50mSv suffered by eye lens；Key person group member is personal, year equivalent dose, 15mSv suffered by eye lens.
Therefore, the device of measurement eye lens dose equivalent is configured in the workplace of employee exposed to radiation, assesses employee exposed to radiation
The received dose equivalent of eye lens is just particularly important, and for the accuracy for guaranteeing measurement, measures the dress of eye lens dose equivalent
Necessity is equipped with to be placed in head emulation die body.
Utility model content
The purpose of this utility model is in view of the problems of the existing technology, to provide a kind of and head tissue that is being modeled
The simple and easy to process head simulation model of the similar performances such as equivalent atom ordinal number, density of material and electron density, structure.
To achieve the above object, the utility model provides a kind of head simulation model, and the head simulation model includes:
First hemisphere, the first hemispheroidal lower surface are provided with the first placing groove；The first hemispheroidal spherical surface
On open there are two fixing groove；The bottom end of the fixing groove is provided with the first threaded hole between the described first hemispheroidal lower surface；
Second hemisphere is equal with the described first hemispheroidal radius；The second hemispheroidal upper surface and described the
One hemispheroidal lower surface connects；The second hemispheroidal upper surface is provided with the second placing groove, first hemisphere and institute
When stating the second hemisphere and being connected by the upper surface and the lower surface, second placing groove and the first placing groove phase
Docking forms ionisation chamber placement space；The second hemispheroidal upper surface is provided with the second threaded hole, second threaded hole with
The position of first threaded hole is corresponding；
Fixed screw, the screw terminal of the fixed screw are set in the fixing groove, the screw rod of the fixed screw
It is threadedly coupled with first threaded hole and second threaded hole, thus by first hemisphere and second hemisphere
It is fixedly connected；
Component is filled up, is set in the fixing groove, the upper surface for filling up component is cambered surface, the curvature of the cambered surface
Radius is equal with the described first hemispheroidal radius.
Preferably, second hemisphere also has a stationary plane, the stationary plane be parallel to described second it is hemispheroidal on
Surface.
Preferably, the head simulation model further includes pedestal, and second hemisphere is fixed in the pedestal.
Preferably, first placing groove is identical as the structure of second placing groove.
Preferably, first hemisphere, second hemisphere, the fixed screw and the material for filling up component
It is identical, it is organic glass or solid water.
It is further preferred that the material of the pedestal is identical as first hemisphere and second hemisphere, to have
Machine glass or solid water.
Head simulation model provided by the embodiment of the utility model, for the model for simplifying adult head part, structure is simple, together
When, organic glass of the similar performances such as equivalent atom ordinal number, density of material and electron density of head tissue for selecting and being modeled
Glass or solid water are as tissue substitute material, and easy to process, convenient for simulation human body head, eye is brilliant under real work site conditions
X ray irradiation x condition suffered by body is conducive to the measurement of eye lens dose equivalent, practical.
Detailed description of the invention
Fig. 1 is the stereoscopic schematic diagram of head simulation model provided by the embodiment of the utility model；
Fig. 2 is the main view of head simulation model provided by the embodiment of the utility model；
Fig. 3 is that head simulation model provided by the embodiment of the utility model does not install fixed screw and fills up the main view of component
Cross-sectional view；
Fig. 4 is the front sectional view of head simulation model provided by the embodiment of the utility model；
Fig. 5 is the right side view of head simulation model provided by the embodiment of the utility model.
Specific embodiment
Below by drawings and examples, the technical solution of the utility model is described in further detail.
The utility model embodiment is related to the head simulation model provided, for the model for simplifying adult head part, structure letter
It is single, meanwhile, it selects close with physical properties such as equivalent atom ordinal number, density of material and the electron densities of the head tissue that are modeled
Organic glass or solid water as tissue substitute material, it is easy to process, be conducive to the measurement of eye lens dose equivalent, practicability
By force.
Fig. 1 and Fig. 2 is respectively the stereoscopic schematic diagram and main view of head simulation model provided by the embodiment of the utility model.
Referring to figs. 1 and 2:
Head simulation model provided by the embodiment of the utility model specifically includes: the first hemisphere 1,5 and of the second hemisphere
Pedestal 11.
Specifically, the lower surface of the first hemisphere 1 is provided with the first placing groove 2；Second hemisphere 5 and the first hemisphere 1
Radius is equal, and the upper surface of the second hemisphere 5 connects with the lower surface of the first hemisphere 1, forms a sphere model；The second half
The upper surface of sphere 5 is provided with the second placing groove 6, and the first hemisphere 1 is connected with the second hemisphere 5 by upper and lower surfaces
When, the second placing groove 6 is connected to each other with the first placing groove 2, ionisation chamber placement space is formed, for placing the ionization of measurement data
Room；Meanwhile second hemisphere 5 be fixed in pedestal 11, pedestal 11 be used to fix sphere model, prevent its rolling.
By Fig. 1 and Fig. 2 it is found that the overall structure of the utility model embodiment head simulation model.Below with reference to Fig. 3 and
The connection relationship between component is introduced in Fig. 4.
Fig. 3, Fig. 4 are respectively that head simulation model provided by the embodiment of the utility model does not install fixed screw and fills up portion
The front sectional view and installation fixed screw of part and the front sectional view for filling up component.In conjunction with shown in Fig. 3, Fig. 4:
Fixing groove 3 there are two being opened on the spherical surface of first hemisphere 1, bottom end to the lower surface of the first hemisphere 1 of fixing groove 3
Between be provided with the first threaded hole 4.
The upper surface of second hemisphere 5 is provided with the second threaded hole 7, and the second threaded hole 7 is opposite with the position of the first threaded hole 4
It answers.
When first hemisphere 1 is connected with the second hemisphere 5 by upper and lower surfaces, the second placing groove 6 is put with first
Slot 2 is set to be connected to each other, meanwhile, the second threaded hole 7 is also connected to each other with the first threaded hole 4.First hemisphere 1 and the second hemisphere 5 are logical
Fixed screw 8 is crossed to be fixedly connected, at this point, the screw terminal of fixed screw 8 is set in fixing groove 3, the screw rod of fixed screw 8 with
First threaded hole 4 and the second threaded hole 7 are threadedly coupled.
After first hemisphere 1 is fixedly connected with the second hemisphere 5 by fixed screw 8, due to the screw of fixed screw 8
Grease head highness is less than the depth of fixing groove 3, and therefore, after installing fixed screw 8, fixing groove 3 understands that some is vacant, to guarantee head
The upper surface that the integrality of portion's model needs the rest in fixing groove 3 to be arranged and fills up component 9, and fills up component 9 is arc
Face, the radius of curvature of cambered surface is equal with the radius of the first hemisphere 1, so that a complete sphere model is formed, as adult
The simplified model of head part provides scattering for dosage measurement point.
In addition, sphere model rolls in order to prevent, the second hemisphere 5 also has stationary plane 10, and stationary plane 10 is parallel to
The upper surface of second hemisphere 5, so that the second hemisphere 5 is capable of fixing the work for playing fixed sphere model on the ground
With.At the same time it can also there is one end of stationary plane 10 to be fixed in pedestal 11 second hemisphere 5, stationary plane 10 and pedestal 11
It is used in combination, reinforces fixed effect.
Again as shown in figure 5, upper surface connects with lower surface when the first hemisphere 1 is fixedly connected with the second hemisphere 5, the
One placing groove 2 is connected to each other with the second placing groove 6, since the first placing groove 2 is identical as the structure of the second placing groove 6, to be formed
One complete ionisation chamber placement space, wherein the preceding part of ionisation chamber placement space is by the table before head simulation model
Face cuts off an inscribed sphere, and using the centre of sphere as vertex, and the circular cone of one certain angle of excision is formed outward, and ionisation chamber is placed
The rear part in space is by successively cutting off a cylinder with large diameter in above-mentioned circular cone centerline direction and small diameter cylinders are formed
, so that ionisation chamber placement space penetrates through entire head simulation model.
In a specific example, to shelve 30cm3The diameter of ionisation chamber, the first hemisphere 1 and the second hemisphere 5 is
20cm cuts off the inscribed sphere that a diameter is 44.6mm in the front surface of head simulation model, as eye lens effective dose
Measured zone, using the centre of sphere as vertex, cutting off subtended angle outward is 120 ° of circular cones, and in excision circular cone centerline direction, successively excision is straight
The cylinder that diameter is 18mm, the cylinder of a height of 27.5mm and diameter are 8mm penetrates through head simulation model.In addition, fixing groove 3 is straight
Diameter is 20mm, and the depth of the first threaded hole 4 and the second threaded hole 7 is 10mm, selects one word M10 screw of tack, tooth away from
1.5mm, nominal length 20mm, the screw terminal of screw is with a thickness of 10mm, reach 20mm, and fixed screw 8 is successively with first
Threaded hole 4 and the second threaded hole 7 are threadedly coupled, for the integrality for guaranteeing head simulation model, fill up component 9 use diameter for
20mm and top surface are the irregular cylinder of cambered surface, fill up gap between component 9 and the first hemisphere 1 and connect.Meanwhile it selecting transversal
Face be annulus pedestal 11, wherein the overall diameter of pedestal 11 be 130mm, interior diameter 111.6mm, for enable stationary plane 10 with
The lower surface of pedestal 11 is in the same plane, and the diameter of stationary plane 10 is selected as 62.45mm.
The selection of head simulation model material should be according to the ingredient and equivalent atom ordinal number, material for the head tissue being modeled
The physical characteristics such as density and electron density are selected.But so far without a kind of single compound in the selection of material
Can be identical with head tissue atomic component, therefore, in material evaluation, it is contemplated that alternative materials and group are woven in radiation
Interaction property and whether density same or similar and physical characteristic, the strength of materials and property easy to process.Therefore selectivity
Organic glass or solid water similar in energy.Organic glass has preferable chemical stability, and easy to process, and radiance
Close with the radiation characteristic for the head tissue being modeled, therefore, the first hemisphere 1, fixed screw 8, is filled up second hemisphere 5
Component 9 and pedestal 11 can select the material of organic glass.
In addition, the radiance of solid water is also close with the radiation characteristic for the head tissue being modeled, therefore the first hemisphere
1, the second hemisphere 5, fixed screw 8, to fill up component 9 and the material of pedestal 11 can also be solid water.
It is to all parts of head simulation model provided in this embodiment, the connection relationship between them and complete above
Structure is described, and below with reference to Fig. 1-Fig. 5, is described in detail to the working principle of head simulation model.
In the present embodiment, the second hemisphere 5 with stationary plane 10 is placed into pedestal 11, thus by the second hemisphere
5 is fixed, is then placed into ionisation chamber accordingly in the second placing groove 6 of 5 upper surface of the second hemisphere, and by the first hemisphere
1 is placed on the second hemisphere 5, so that upper surface connects with lower surface, the first placing groove 2 is connected to each other with the second placing groove 6, electricity
Top from room is placed in the first placing groove 2, meanwhile, the first threaded hole 4 and the second threaded hole 7 are connected to each other, and fixed screw 8 is pacified
It is attached in fixing groove 3, so that fixed screw 8 is threadedly coupled with the first threaded hole 4 and the second threaded hole 7, thus by the first hemisphere
Body 1 is fixedly connected with the second hemisphere 5, will finally be filled up component 9 and is placed into fixing groove 3, is filled up fixing groove 3 and is installed fixed spiral shell
Rest after silk 8, to form the device of a measurement eye lens dose equivalent, wherein the first hemisphere 1 and the second half
Sphere 5 plays the role of providing scattering for dosage measurement point, simulates the head tissue of human body.
Head simulation model provided by the embodiment of the utility model, for the model for simplifying adult head part, structure is simple, together
When, organic glass or solid water similar in the head tissue radiance that selects and be modeled are easy to as tissue substitute material
Processing, provides scattering for dosage measurement point, is conducive to the measurement of eye lens dose equivalent, practical.
Above-described specific embodiment, to the purpose of this utility model, technical scheme and beneficial effects carried out into
One step is described in detail, it should be understood that being not used to limit the foregoing is merely specific embodiment of the present utility model
Determine the protection scope of the utility model, within the spirit and principle of the utility model, any modification for being made equally is replaced
It changes, improve, should be included within the scope of protection of this utility model.
Claims (6)
1. a kind of head simulation model, which is characterized in that the head simulation model includes:
First hemisphere, the first hemispheroidal lower surface are provided with the first placing groove；It is opened on the first hemispheroidal spherical surface
There are two fixing grooves；The bottom end of the fixing groove is provided with the first threaded hole between the described first hemispheroidal lower surface；
Second hemisphere is equal with the described first hemispheroidal radius；The second hemispheroidal upper surface and described the first half
The lower surface of sphere connects；The second hemispheroidal upper surface is provided with the second placing groove, first hemisphere and described the
When two hemispheres are connected by the upper surface and the lower surface, second placing groove is opposite with first placing groove
It connects, forms ionisation chamber placement space；The second hemispheroidal upper surface is provided with the second threaded hole, second threaded hole and institute
The position for stating the first threaded hole is corresponding；
Fixed screw, the screw terminal of the fixed screw are set in the fixing groove, the screw rod of the fixed screw and institute
It states the first threaded hole and second threaded hole is threadedly coupled, so that first hemisphere and second hemisphere be fixed
Connection；
Component is filled up, is set in the fixing groove, the upper surface for filling up component is cambered surface, the radius of curvature of the cambered surface
It is equal with the described first hemispheroidal radius.
2. head simulation model according to claim 1, which is characterized in that second hemisphere also has stationary plane,
The stationary plane is parallel to the described second hemispheroidal upper surface.
3. head simulation model according to claim 1, which is characterized in that the head simulation model further includes pedestal,
Second hemisphere is fixed in the pedestal.
4. head simulation model according to claim 1, which is characterized in that first placing groove and described second is placed
The structure of slot is identical.
5. head simulation model according to claim 1, which is characterized in that first hemisphere, second hemisphere
Body, the fixed screw are identical with the material for filling up component, are organic glass or solid water.
6. head simulation model according to claim 3, which is characterized in that the material of the pedestal and first hemisphere
Body is identical with second hemisphere, is organic glass or solid water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721740681.0U CN208384886U (en) | 2017-12-14 | 2017-12-14 | A kind of head simulation model |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721740681.0U CN208384886U (en) | 2017-12-14 | 2017-12-14 | A kind of head simulation model |
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| CN208384886U true CN208384886U (en) | 2019-01-15 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109893868A (en) * | 2019-03-29 | 2019-06-18 | 福建蓝帽子互动娱乐科技股份有限公司 | A kind of head construction of artificial toy doll |
-
2017
- 2017-12-14 CN CN201721740681.0U patent/CN208384886U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109893868A (en) * | 2019-03-29 | 2019-06-18 | 福建蓝帽子互动娱乐科技股份有限公司 | A kind of head construction of artificial toy doll |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190115 Termination date: 20201214 |
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| CF01 | Termination of patent right due to non-payment of annual fee |