CN107583205A - Collimator assembly and the Medical Devices including the collimator assembly - Google Patents
Collimator assembly and the Medical Devices including the collimator assembly Download PDFInfo
- Publication number
- CN107583205A CN107583205A CN201710740958.8A CN201710740958A CN107583205A CN 107583205 A CN107583205 A CN 107583205A CN 201710740958 A CN201710740958 A CN 201710740958A CN 107583205 A CN107583205 A CN 107583205A
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- Prior art keywords
- collimator
- primary
- filter
- collimator assembly
- fluting
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Abstract
The application provides a kind of collimator assembly and the Medical Devices including the collimator assembly.The collimator assembly includes example of primary collimator, secondary collimator and the filter between the example of primary collimator and the secondary collimator, at least one in the example of primary collimator and the secondary collimator offers fluting at it close to the side of the filter, and the filter is movably arranged in the fluting.
Description
Technical field
The application is related to a kind of medicine equipment, more particularly to a kind of collimator assembly and the medical treatment including the collimator assembly
Equipment.
Background technology
The collimator assembly of radiotherapy equipment is used for carrying out contour shape collimation to ray, and the clinic to meet different makes
With requiring, suitable type treatment or intensity modulated therapy are realized, reaches the purpose of accurate treatment tumour, improves oncotherapy effect, reduce and suffer from
The unnecessary ionising radiation infringement of person.For example, the collimator assembly used in medical computerized linear accelerator, can be by ray wheel
Exterior feature, which is collimated into, circular, square, oval etc. meets clinical practice.
The content of the invention
The one side of the application provides a kind of collimator assembly.The collimator assembly includes example of primary collimator, secondary standard
Straight device and the filter between the example of primary collimator and the secondary collimator, the example of primary collimator and the secondary
At least one in collimater offers fluting at it close to the side of the filter, and the filter is movably arranged at
In the fluting.
Further aspect of the application provides a kind of Medical Devices.The Medical Devices include：Radiographic source, penetrated for launching
Line；And collimator assembly, for being collimated to the ray.
The filter of the collimator assembly of the application is superimposed group with least one in example of primary collimator and secondary collimator
Close, the inside arrangement space of collimator assembly can be reduced, so as to increase external scan treatment space.
Brief description of the drawings
Fig. 1 show the schematic diagram of one embodiment of the application Medical Devices；
Fig. 2 show the front section view under a kind of state of the collimator assembly of the Medical Devices shown in Fig. 1, wherein accurate
The filter of straight device assembly is in the first station；
Fig. 3 show the side sectional view of the collimator assembly shown in Fig. 2, and wherein the filter of collimator assembly is in the
One station；
Fig. 4 show the front section view under another state of the collimator assembly shown in Fig. 2, wherein collimator assembly
Filter be in second station；
Fig. 5 show the side sectional view of the collimator assembly shown in Fig. 4, and wherein the filter of collimator assembly is in the
Two stations.
Embodiment
Here exemplary embodiment will be illustrated in detail, its example is illustrated in the accompanying drawings.Following description is related to
During accompanying drawing, unless otherwise indicated, the same numbers in different accompanying drawings represent same or analogous key element.Following exemplary embodiment
Described in embodiment do not represent all embodiments consistent with the application.On the contrary, they be only with it is such as appended
The example of the consistent apparatus and method of some aspects be described in detail in claims, the application.
It is only merely for the purpose of description specific embodiment in term used in this application, and is not intended to be limiting the application.
Unless otherwise defined, technical term or scientific terminology used in this application, which are should be in art of the present invention, has general skill
The ordinary meaning that the personage of energy is understood." first " " second " that is used in present specification and claims and class
As word be not offered as any order, quantity or importance, and be used only to distinguish different parts.Equally, " one
It is individual " or the similar word such as " one " do not indicate that quantity limits yet, but represent to exist at least one." multiple " or " some " table
Show two and two or more.Unless otherwise noted, the similar word such as " front portion ", " rear portion ", " bottom " and/or " top " is simply
It is easy to illustrate, and is not limited to a position or a kind of spatial orientation.The similar word such as " comprising " or "comprising" means
Appear in element or object of the " comprising " either before "comprising" and cover and appear in " comprising " or "comprising" presented hereinafter
Element or object and its equivalent, it is not excluded that other elements or object.The similar word such as " connection " or " connected " is simultaneously
It is non-limiting and electrical connection to be included in physics or mechanical connection, it is either directly or indirect.
" one kind " of singulative used in present specification and appended claims, " described " and "the" be also intended to including
Most forms, unless context clearly shows that other implications.It is also understood that term "and/or" used herein refers to
And any or all may be combined comprising the associated list items purpose of one or more.
The application collimator assembly includes example of primary collimator, secondary collimator and positioned at example of primary collimator and secondary collimator
Between filter (or make " functor ").At least one in example of primary collimator and secondary collimator is at it close to filter
Side offer fluting, filter is movably arranged in fluting.Filter can be folded in the axial direction with example of primary collimator
Add combination, the inside arrangement space of collimator assembly can be reduced, so as to increase external scan treatment space.
Fig. 1 show the schematic diagram of the Medical Devices 10 of one embodiment.Medical Devices 10 shown in figure are electro-medical
Sub- linear accelerator.Medical Devices 10 include fixed frame 11, rotary frame 12, radiation head 13, collimator assembly 14 and treatment
Bed 15.
Rotary frame 12 is located at the side of fixed frame 11, and rotary frame 12 can rotate around the axis of fixed frame 11.Spoke
First 13 tops for being connected to rotary frame 12 are penetrated, it is relative with therapeutic bed 15.Radiation head 13 includes radiographic source 131, for launch into
As ray and treatment ray, wherein imaging ray is typically X ray, and treatment ray is typically β rays.Collimator assembly 14
It is connected to radiation head 13.Collimator assembly 14 is for being collimated to ray, for suitable type treatment or intensity modulated therapy.Treatment
Bed 15 is used for supporting patient, is typically for patient and lies at thereon.Therapeutic bed 15 is rotatable to adjust the position of patient's relative radiation first 13
Put, to adjust radiation exposure to the privileged site of patient.
Fig. 2 show the front section view of one embodiment of collimator assembly 14, and Fig. 3 show the collimation shown in Fig. 2
The side sectional view of device assembly 14.Fig. 4 show the front section view of 14 another state of collimator assembly shown in Fig. 2, Fig. 5 institutes
The side sectional view for the collimator assembly 14 being shown as shown in Fig. 4.Fig. 2-5 are refer to, collimator assembly 14 includes example of primary collimator
20th, secondary collimator 22 and the filter 21 between example of primary collimator 20 and secondary collimator 22.Example of primary collimator 20 is wrapped
Side wall 201 is included, side wall 201 determines the greatest irradiation open country scope of ray around primary collimating aperture 202 is formed.Example of primary collimator 20
Side wall 201 stop radiation outside the scope of greatest irradiation open country.In one embodiment, primary collimating aperture 202 is round taper hole, is penetrated
Line passes through round taper hole, and it is wild to form circular radiation.
In one embodiment, example of primary collimator 20 offers fluting 203 at it close to the side of filter 21.In figure just
The bottom of the side wall 201 of level collimater 20 offers fluting 203.Fluting 203 downwards and to the inside opening of example of primary collimator 20, with
Primary collimating aperture 202 connects.
Filter 21 is movably arranged in fluting 203.Illustrate in embodiment, filter 21 is installed on primary from below
In the fluting 203 of collimater 20.In one embodiment, filter 21 can move linearly in fluting 203.In another implementation
In example, filter 21 can be in 203 internal rotations movement of slotting.Example of primary collimator 20 is fixed.
Filter 21 includes some shielding slabs 213, and some shielding slabs 213 form some filter bores 214,215.Filter 21
It can be moved relative to example of primary collimator 20, to switch different filter bores 214 or 215 positioned at the primary lower section of collimating aperture 202.One
In a little embodiments, different functional parts 210,211 can be placed in filter bores 214 and 215, or one of filter bores 214 or
215 be empty, i.e., does not place any functional part.In the illustrated embodiment, filter 21 can move relative to example of primary collimator 20
It is dynamic, to switch different functional parts 210 or 211 positioned at the primary lower section of collimating aperture 202.In one embodiment, functional part
210 and 211 be the equal monoblock of different height, and different expansions is carried out to the ray through example of primary collimator 20.In other implementations
In example, functional part 210,211 can include scattering foil, or other elements, can be according to different requirement selection functions
Part.
The filter bores 214 of filter 21 in Fig. 2 and Fig. 3 are in first positioned at the primary lower section of collimating aperture 202, filter 21
Station.Filter 21 is in second station in Fig. 4 and Fig. 5, and the filter bores 215 of filter 21 are positioned at the primary lower section of collimating aperture 202.
Two filter bores, but not limited to this are illustrate only in figure, in other embodiments, three or more can be set according to practical application
Multiple filter bores.
At least part shielding slab 213 is located in the fluting 203 of example of primary collimator 20.Filter bores 214 are positioned at just in Fig. 2 and 3
The lower section of level collimating aperture 202, the shielding slab 213 of filter bores 214 is formed in fluting 203.Filter bores 215 are positioned at just in Figure 4 and 5
The lower section of level collimating aperture 202, the shielding slab 213 of filter bores 215 is formed in fluting 203.Shielding slab 213 is located in fluting 203,
It can stop that ray enters fluting 203, ray is collimated jointly with the side wall 201 of example of primary collimator 20.
It is moved to the inwall 2141 or 2151 of the filter bores 214 or 215 of the primary lower section of collimating aperture 202 and primary collimating aperture
The bearing of trend of 202 inwall 2021 is consistent.The inwall 2141,2151 of filter bores 214,215 is the inner side of shielding slab 213
Wall.The inwall 2141 or 2151 of filter bores 214 or 215 then extends downwardly below the inwall 2021 of primary collimating aperture 202, with
The inwall 2021 of primary collimating aperture 202 forms substantially continuous smooth hole wall, so ensures the primary collimation with fluting 203
The collimating effect of device 20.
In one embodiment, primary collimating aperture 202 is round taper hole, and filter bores 214,215 are also round taper hole, mobile
To the inwall 2021 of the inwall 2141 or 2151 and primary collimating aperture 202 of the filter bores 214 or 215 of the primary lower section of collimating aperture 202
Extend on same circular conical surface.Filter bores 214 are positioned at the primary lower section of collimating aperture 202, the inwall 2141 of filter bores 214 in Fig. 2 and 3
It is consistent with the bearing of trend of inwall 2021 of primary collimating aperture 202.Filter bores 215 are located at the primary lower section of collimating aperture 202 in Figure 4 and 5,
The inwall 2151 of filter bores 215 is consistent with the bearing of trend of inwall 2021 of primary collimating aperture 202.
In one embodiment, the bottom surface of shielding slab 213 is concordant with the bottom surface of example of primary collimator 20.So ensure to have to open
The radiation field size that the example of primary collimator 20 of groove 203 obtains is identical with the radiation field size that the example of primary collimator collimation of unslotted obtains.One
In individual embodiment, the shape of the lateral section of shielding slab 213 is consistent with the side sectional shape slotted, and size is roughly equal, such as Fig. 3
Shown in 5.
In one embodiment, filter 21 also includes supporting plate 216, supports shielding slab 213.In one embodiment,
Supporting plate 216 can be pulled to move filter 21.Ray can pass through supporting plate 216, supporting plate 216 it is unobstructed to ray and
Filtration.In the illustrated embodiment, the position of supporting plate 216 is less than the bottom surface of example of primary collimator 20.
Secondary collimator 22 can be to further collimating through the ray of example of primary collimator 20 and filter 21.One
In individual embodiment, secondary collimator 22 includes upper and lower two pairs of retractable rectangular collimators (not shown), passes through upper and lower two pairs of squares
It is wild that the open and close movement of shape collimater forms rectangular radiation.
In one embodiment, collimator assembly 14 includes the upper diaphragm standard arranged axially below positioned at secondary collimator 22
Straight device 23 and lower diaphragm collimater 24.Example of primary collimator, filter 21, secondary collimator 22, upper diaphragm collimater 23 and lower light
Late collimater 24 is arranged in order to the direction away from radiographic source.Upper diaphragm collimater 23 and lower diaphragm collimater 24 further limit
The radiation scope of ray.Diaphragm collimater 23 and/or lower diaphragm collimater 24 in movement, it can be formed in secondary collimator 22
The size of radiation field size is adjusted on the basis of rectangular radiation open country.The big of illuminated position can be needed according to patient in practical application
Small adjustment glazing door screen collimater 23 and/or lower diaphragm collimater 24.In other embodiments, collimator assembly may also include other
Element, such as reflective mirror.
Fig. 2-5 is only an example, and in another example, fluting 203 can be opened in the top of secondary collimator 22,
Filter 21 moves in the fluting 203 of secondary collimator 22.Such filter 21 in the axial direction with secondary collimator 22
It is overlapping, save space.The embodiment at the top of secondary collimator 22, the embodiment shown in Fig. 2-5 are opened in relative to fluting 203
In filter 21 radial dimension it is smaller, therefore the radial dimension of collimator assembly 14 is smaller, more saves space.
In a further embodiment, the bottom of example of primary collimator 20 and the top of secondary collimator 22 are equipped with fluting, this
The depth for being recessed at longitudinal direction can be 203 smaller than fluting, the fluting of the part of filter 21 in the bottom of example of primary collimator 20
It is interior, another part in the fluting at the top of secondary collimator 22, on such axial direction of filter 21 with example of primary collimator 20 and
Secondary collimator 22 is overlapping, saves space.
The preferred embodiment of the application is the foregoing is only, not limiting the application, all essences in the application
God any modification, equivalent substitution and improvements done etc., should be included within the scope of the application protection with principle.
Claims (10)
- A kind of 1. collimator assembly, it is characterised in that：It includes example of primary collimator, secondary collimator and positioned at the primary collimation Filter between device and the secondary collimator, it is at least one at it in the example of primary collimator and the secondary collimator Fluting is offered close to the side of the filter, the filter is movably arranged in the fluting.
- 2. collimator assembly as claimed in claim 1, it is characterised in that：The example of primary collimator includes side wall, the side wall Around primary collimating aperture is formed, the bottom of the side wall offers the fluting.
- 3. collimator assembly as claimed in claim 2, it is characterised in that：The filter includes some shielding slabs, if described Dry shielding slab forms some filter bores, and the filter can move relative to the example of primary collimator, to switch different filterings Hole position is below the primary collimating aperture.
- 4. collimator assembly as claimed in claim 3, it is characterised in that：At least partly described shielding slab is positioned at described primary accurate In the fluting of straight device.
- 5. collimator assembly as claimed in claim 4, it is characterised in that：The mistake being moved to below the primary collimating aperture The inwall of filter opening is consistent with the bearing of trend of the inwall of the primary collimating aperture.
- 6. collimator assembly as claimed in claim 5, it is characterised in that：The primary collimating aperture is round taper hole, the mistake Filter opening is also round taper hole, the inwall for the filter bores being moved to below the primary collimating aperture and the primary collimating aperture Inwall extends on same circular conical surface.
- 7. collimator assembly as claimed in claim 3, it is characterised in that：The bottom surface of the shielding slab and the example of primary collimator Bottom surface it is concordant.
- 8. collimator assembly as claimed in claim 3, it is characterised in that：The filter includes supporting plate, supports the screen Cover block.
- 9. collimator assembly as claimed in claim 1, it is characterised in that：The filter can move linearly in the fluting It is or in rotary moving.
- A kind of 10. Medical Devices, it is characterised in that：It includes：Radiographic source, for divergent-ray；AndCollimator assembly as described in claim 1-9 is any, for being collimated to the ray.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710740958.8A CN107583205B (en) | 2017-08-25 | 2017-08-25 | Collimator assembly and medical device comprising same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710740958.8A CN107583205B (en) | 2017-08-25 | 2017-08-25 | Collimator assembly and medical device comprising same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107583205A true CN107583205A (en) | 2018-01-16 |
| CN107583205B CN107583205B (en) | 2020-06-12 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710740958.8A Active CN107583205B (en) | 2017-08-25 | 2017-08-25 | Collimator assembly and medical device comprising same |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109738439A (en) * | 2019-01-02 | 2019-05-10 | 中国工程物理研究院材料研究所 | A kind of solid angle differential imaging collimator and its application |
| WO2020097800A1 (en) * | 2018-11-13 | 2020-05-22 | 西安大医集团有限公司 | Optical filter, radiation scanning apparatus, and radiation scanning method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103285526A (en) * | 2012-02-29 | 2013-09-11 | 伊利克塔股份有限公司 | Linear accelerators and related improvement |
| CN104795121A (en) * | 2014-01-22 | 2015-07-22 | 上海联影医疗科技有限公司 | Split type primary collimator |
| CN105903124A (en) * | 2016-06-30 | 2016-08-31 | 沈阳东软医疗系统有限公司 | Collimator |
-
2017
- 2017-08-25 CN CN201710740958.8A patent/CN107583205B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103285526A (en) * | 2012-02-29 | 2013-09-11 | 伊利克塔股份有限公司 | Linear accelerators and related improvement |
| CN104795121A (en) * | 2014-01-22 | 2015-07-22 | 上海联影医疗科技有限公司 | Split type primary collimator |
| CN105903124A (en) * | 2016-06-30 | 2016-08-31 | 沈阳东软医疗系统有限公司 | Collimator |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020097800A1 (en) * | 2018-11-13 | 2020-05-22 | 西安大医集团有限公司 | Optical filter, radiation scanning apparatus, and radiation scanning method |
| CN109738439A (en) * | 2019-01-02 | 2019-05-10 | 中国工程物理研究院材料研究所 | A kind of solid angle differential imaging collimator and its application |
| CN109738439B (en) * | 2019-01-02 | 2021-04-13 | 中国工程物理研究院材料研究所 | Solid angle differential imaging collimator and application thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107583205B (en) | 2020-06-12 |
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| CB02 | Change of applicant information |
Address after: 110167 No. 177-1 Innovation Road, Hunnan District, Shenyang City, Liaoning Province Applicant after: DongSoft Medical System Co., Ltd. Address before: 110167 No. 177-1 Innovation Road, Hunnan District, Shenyang City, Liaoning Province Applicant before: Dongruan Medical Systems Co., Ltd., Shenyang |
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